8/31/09: Monday’s Weather Report

Issued at 4:20 PM CDT, Monday, August 31st, 2009

*Record Event*

Record low temperature of 38 degrees occurred at Duluth, Minnesota, on Sunday, August 30th, 2009. Previous record low temperature for the date was 39 degrees which was set in 1988.

*Record Event*

Record low temperature of 32 degrees occurred at International Falls, Minnesota, on Sunday, August 30th, 2009. Previous record low temperature for the date was 35 degrees which was set in 2007.

Here are some low temperatures across Northern Minnesota and Northwest Wisconsin from This Morning, Monday, August 31st, 2009.

International Falls MN: 36 degrees

Hibbing MN: 31 degrees

Two Harbors MN: 37 degrees

Silver Bay MN: 34 degrees

Bigfork MN: 36 degrees

Aitkin MN: 36 degrees

Cloquet MN: 37 degrees

Phillips WI: 37 degrees

3 miles South of Tower MN: 31 degrees

Embarrass MN: 27 degrees

Floodwood MN: 35 degrees

3 miles East of Orr MN: 32 degrees

Winter WI: 34 degrees

Butternut WI: 35 degrees

Upson WI: 36 degrees

Weather Highlights:

…Pleasant daytime highs and cool nighttime lows sum up the weather across our area for the next several days…

…Almost an Indian Summer type weather pattern in place since some parts of our area have had frost the last few days…

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Strong high pressure of 1024 mb has moved into Southern Wisconsin-Northern Illinois late Today but it’s ridge extends north-west into Central Minnesota. Mostly sunny-sunny skies prevailed across our area Today with a somewhat milder day compared to Sunday…Highs Today were in the middle 60s to lower 70s with 4 PM 850 mb temperatures of +7 to +9 degrees C. Dewpoints This Afternoon were running in the 40s to around 50 degrees with PWS right around one half inch once again. Winds Today were out of the south, west, or north under 15 mph.

(Today’s Upper Level Analysis)

Jet stream winds have relaxed to more normal late Summer levels Today and have really diminished compared to just a few days ago. An upper level low (576 meters) was drifting east through Southwestern Montana This Afternoon while an H5 trough covered Eastern Canada-Northeast U.S. Northwesterly flow aloft was found over the Upper Midwest Today on this final day of August 2009. H5 ridging (588 meters) was confined to the Southwest U.S. and adjacent portions of Western-Central Texas Today.

(Tonight)

High pressure will be centered to our southeast which will result in mainly clear skies along with a threat for some patchy late night fog. Lows will be in the 40s to around 50 degrees but colder 30s will occur in the traditional cold spots. Winds Tonight will be out of the south, west, or north under 12 mph.

(Tuesday and Tuesday Night)

High pressure remains in control of our weather as it stays put to our southeast. Look for mostly sunny-sunny skies on Tuesday with clear-partly cloudy skies Tuesday Night. May see some early Morning and late night fog patches around our area. Highs Tuesday will be in the 68-75 degree range with lows Tuesday Night in the 40s to lower 50s. Look for south winds under 15 mph during this period.

(Extended Forecast)

High pressure should remain in control of our weather from mid to late week as it remains to our south-east. The disturbance moving into the Northern Rockies Today is forecast to drop south-east and should remain far enough to our southwest to prevent any showers from reaching our local area later this week. Will still have to monitor a cold front which is expected to drop south out of Northern Canada during the Thursday-Friday time period…however right now it appears that this boundary will not make it south of the border. All in all it looks like it will be mainly dry across Northeast Minnesota and Northwest Wisconsin from Wednesday through Friday with just an outside risk for a passing shower later this week from the cold front to our north. Highs Wednesday and Thursday will be mainly in the 70s with lows both nights generally in the 50s. Looking ahead into the Labor Day holiday weekend features more of the same weather with pleasant temps and no rain until perhaps early next week. Temperatures may turn cooler however near Lake Superior later this week or this weekend as we could see an easterly component to the wind start to develop during that time.

5 Day Forecast for Duluth/Superior

.Tonight… Clear. Patchy fog possible late. Low 42 to 47. Wind south to southwest under 12 mph.

.Tuesday… Patchy fog possible early. Sunshine. High 69 to 74. Wind south to southwest at 5 to 15 mph.

.Tuesday Night… Mostly clear. Patchy fog possible late. Low 47 to 52. Wind south under 12 mph.

.Wednesday… Patchy fog possible early. Mostly sunny. High 70 to 75.

.Wednesday Night… Partly cloudy. Low 50 to 55.

.Thursday… Partly sunny. Afternoon showers possible. High 70 to 75. Chance of rain 20%.

.Thursday Night… Partly cloudy. Low 50 to 55.

.Friday… Partly cloudy. High 68 to 73.

Normal High Temperature Today 70 degrees

Normal Low Temperature Today 50 degrees

Tim

8/30/09: Sunday’s Weather Report

Issued at 4:58 PM CDT, Sunday, August 30th, 2009

Record Event:

Record low temperature of 34 degrees occurred at International Falls, Minnesota, on Saturday August 29th, 2009. The previous record low temperature for the date was 35 degrees set in 2007.

Weather History:

On this date in 1988… A record low temperature of 39 degrees occurred at Duluth, MN.

From the National Weather Service, Duluth, MN:

*Frost Advisory* has been issued for all of Northeast…Eastcentral…and Northcentral Minnesota and Northwest Wisconsin. This advisory is in effect from 1200 AM CDT Tonight until 700 AM CDT Monday.

Counties included in the advisory are: Koochiching MN…Itasca MN…Cass MN…Crow Wing MN…Aitkin MN…Pine MN…Carlton MN…St. Louis MN…Lake MN…Cook MN…Douglas WI…Bayfield WI…Ashland WI…Iron WI…Burnett WI…Washburn WI…Sawyer WI…and Price WI…

Some cities included in the advisory are: International Falls MN…Grand Rapids MN…Walker MN…Brainerd MN…Aitkin MN…Hill City MN…McGregor MN…Pine City MN…Sandstone MN…Hinckley MN…Moose Lake MN…Wrenshall MN…Esko MN…Cloquet MN…Duluth MN…Floodwood MN…Cotton MN…Hibbing MN…Embarrass MN…Hoyt Lakes MN…Crane Lake MN…Ely MN…Two Harbors MN…Whyte MN…Isabella MN…Forest Center MN…Murphy City MN…Silver Bay MN…Grand Marais MN…Tofte MN…Lutsen MN…Grand Portage MN…Superior WI…Solon Springs WI…Bayfield WI…Ashland WI…Hurley WI…Siren WI…Grantsburg WI…Shell Lake WI…Minong WI…Hayward WI…Park Falls WI…and Prentice WI…

High pressure overhead will bring another night of mainly clear skies…light winds…and unseasonably cool temperatures to Northeast Minnesota and Northwest Wisconsin. Overnight lows are forecast to be in the lower to middle 30s with slightly milder conditions expected closer to Lake Superior. Some of the traditional cold spots could drop into the 26-29 degree range by Morning. Areas of frost are forecast to develop inland from Lake Superior late Tonight and early Monday.

A frost advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered.

Here are some low temperatures around Northern Minnesota and Northwest Wisconsin from earlier Today, Sunday, August 30th, 2009.

Duluth MN: 38 degrees

International Falls MN: 32 degrees

Silver Bay MN: 32 degrees

Ely MN: 32 degrees

Grand Marais MN: 36 degrees

Crane Lake MN: 32 degrees

Bigfork MN: 30 degrees

Superior WI: 39 degrees

Hayward WI: 35 degrees

Babbitt MN: 29 degrees

3 miles South of Tower MN: 31 degrees

Embarrass MN: 27 degrees

3 miles East of Orr MN: 32 degrees

4 miles East of Island Lake MN: 36 degrees

Upson WI: 34 degrees

Gurney WI: 35 degrees

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Partly cloudy-sunny skies prevailed across our area Today with a real autumnal feel to the air with highs mainly in the 60s to around 70 degrees along with dewpoints in the 30s and 40s with PWS around one half inch! 850 mb temperatures as of 4 PM ranged from +5 to +7 degrees C. Winds Today were north, east, or northwest under 15 mph. Surface map late This Afternoon features a 1024 mb high centered over Central Minnesota.

(Today’s Upper Level Analysis)

Amplified north-northwest H5 flow was in place This Afternoon across the Upper Midwest with upper level troughing in place over the Upper Midwest/Great Lakes/Central-Eastern Canada. A disturbance was dropping south-southeast across Iowa Today but no precipitation has occurred near this system. An upper level low (576 meters) continued to move very slowly toward the east out of Oregon/Washington and was heading into Idaho late Today. H5 ridging has been squashed farther south compared to previous days with the axis of this H5 ridge covering the Southwest U.S. Today.

(Tonight)

Mostly clear skies are expected with another crisp fall like night in late August. Look for patchy fog and frost across our area mainly away from Lake Superior. Lows will be in the 30s and 40s but some 20s are expected once again in the traditional cold spots. Winds will be variable under 10 mph. Strong high pressure will remain over our area Tonight.

(Monday and Monday Night)

High pressure will remain in control of our local weather as it continues to sit over the Upper Midwest. Look for mostly sunny skies on Monday and clear-partly cloudy skies Monday Night. Highs Tomorrow will be in the 60s and 70s with lows Tomorrow Night in the 40s but some 30s are expected in the traditional cold spots. Look for variable to southerly winds at 5-15 mph during this period.

(Extended Forecast)

High pressure remains in control of our weather for Tuesday and Tuesday Night with daytime highs in the 60s and 70s with nighttime lows in the 40s and lower 50s. The area of high pressure from Tuesday into Wednesday will edge slightly more to our east while the upper level low currently across the Pacific Northwest moves east-southeast toward the Northern-Central Plains from mid to late week…This feature will bring some showers to areas mainly west-south of our area from mid to late week…Will also see a cold front drop south out of Central Canada from Thursday into Friday and this boundary could cause a few showers to develop across Northern Minnesota and Northwest Wisconsin both those days…however these rain chances look very low at this time. High temperatures on Wednesday will be mainly in the 70s with lows Wednesday Night mainly in the 50s.

5 Day Forecast for Duluth/Superior

*Frost Advisory* in effect from Midnight CDT Tonight until 7 AM CDT Monday…

.Tonight… Mostly clear with areas of fog possible late. Patchy frost developing away from Lake Superior Overnight. Low 36 to 41 but a little warmer in Downtown Duluth. Wind north under 12 mph.

.Monday… Patchy fog possible early. Mostly sunny. High 66 to 71. Wind southwest around 12 mph.

.Monday Night… Mostly clear. Patchy fog possible late. Low 45 to 50. Wind south to southwest under 10 mph.

.Tuesday… Partly cloudy. High 70 to 75.

.Tuesday Night… Mostly clear. Low 48 to 53.

.Wednesday… Partly sunny. High 70 to 75.

.Wednesday Night… Partly cloudy. Low 50 to 55.

.Thursday… Partly sunny. Afternoon showers possible. High 70 to 75. Chance of rain 20%.

Normal High Temperature Today 70 degrees

Normal Low Temperature Today 50 degrees

Tim

8/29/09: Saturday’s Weather Report

Issued at 3:46 PM CDT, Saturday, August 29th, 2009

Cold Morning up North…Here are some low temperatures that occurred earlier Today, Saturday, August 29th, 2009.

International Falls MN: 34 degrees

Hibbing MN: 38 degrees

Bigfork MN: 39 degrees

Crane Lake MN: 39 degrees

Northome MN: 38 degrees

Embarrass MN: 36 degrees

Littlefork MN: 38 degrees

3 miles East of Orr MN: 35 degrees

From the National Weather Service, Duluth, MN:

*Frost Advisory* is in effect from 900 PM CDT This Evening until 900 AM CDT Sunday Morning for portions of Northern and Northeast Minnesota.

Counties included in the Advisory are: Koochiching MN…Itasca MN…Central-Northern St. Louis MN…Lake MN…and Cook MN…

Some cities included in the Advisory are: International Falls MN…Northome MN…Littlefork MN…Togo MN…Grand Rapids MN…Meadowlands MN…Cotton MN…Hibbing MN…Tower MN…Ely MN…Embarrass MN…Virginia MN…Hoyt Lakes MN…Crane Lake MN…Orr MN…Forest Center MN…Whyte MN…Wales MN…Two Harbors MN…Murphy City MN…Isabella MN…Silver Bay MN…Tofte MN…Grand Marais MN…Lutsen MN…and Grand Portage MN…

High pressure building into the area from the Northern Plains will result in clearing skies across the advisory area Tonight…the clear skies combined with diminishing wind speeds will result in the threat for areas of frost across parts of Northern and Northeast Minnesota later Tonight and early Sunday. The highest liklihood for frost will be in low lying areas and sheltered areas and for locations Inland from Lake Superior. Overnight low temperatures are forecast to be in the lower to middle 30s Tonight in the Advisory area with slightly milder temperatures close to Lake Superior.

A Frost Advisory means that frost is possible…Sensitive outdoor plants may be killed if left uncovered.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Low pressure of 1002 mb was centered over the Lower Michigan/Lake Huron area as of 3 PM with high pressure of 1024 mb located to our west-north. Showers wrapping around this surface low and upper level low affected portions of Northwest Wisconsin west to the North Shore of Lake Superior in Northeast Minnesota Today where skies stayed mainly cloudy…Areas from Koochiching…Itasca…Crow Wing…Western-Northern St. Louis Counties in Minnesota saw alot more sun Today compared to the rest of our area. Highs Today were in the 50s and 60s with 3 PM 850 mb temperatures of +4 to +5 degrees C with 500 mb temperatures around -18 degrees C. Winds Today were out of the north, northwest, or northeast at 10-20 mph.

(Today’s Upper Level Analysis)

Amplified northerly H5 flow covered the Upper Midwest Today with a (558 meters) H5 low covering Lake Huron with a broader upper level trough covering the Upper Midwest/Great Lakes region Today along with a 100 knot H3 jet which has shifted south-southeast into Southern Wisconsin and Northeast Iowa per RUC model analysis. 60 meter 12 hour 500 mb height falls were found near this upper level system Today across the Eastern Great Lakes. A new upper level low (576 meters) was centered over Southern Washington-Northern Oregon This Afternoon with 60 meter 12 hour 500 mb height falls located over parts of the Pacific Northwest. This latter system will take it’s sweet old time tracking south-east during the next 5 days or so and it may become a player in our weather with time… H5 ridging (588-594 meters) along with +20 to +34 degree C H85 temperatures were in place over the Central-Southern Rockies…Southwest U.S. Today.

(Tonight)

Mostly cloudy skies across Northwest Wisconsin and east-south of the Iron Range will start to clear out from north to south during the night as the H5 low/surface low over the Eastern Great Lakes This Afternoon shifts slightly more to the east Tonight. Meanwhile strong high pressure will remain to our west-north. Areas of showers and drizzle across Northwest Wisconsin and in far Eastern Minnesota will end during the Evening hours. Look for some patchy fog late Tonight along with a frost threat along and north of a Grand Rapids to Two Harbors Minnesota line. Skies across western-northwest parts of our area will remain generally fair Tonight. Lows will be in the 30s and 40s with some 20s possible in the traditional cold spots across Northcentral Minnesota. Winds will be out of the north, northwest, or northeast at 5-15 mph with gusts around 20 mph This Evening.

(Sunday and Sunday Night)

Strong high pressure will be centered over our area during this period. Should see more sun on Sunday compared to what occurred on Saturday…but some clouds will likely develop at times during the day…overall expect partly-mostly sunny skies for Sunday. Clear-partly cloudy skies are expected for Sunday Night. Highs Tomorrow will be mainly in the 60s with lows Tomorrow Night in the 30s and 40s. Could see some patchy fog redevelop late Tomorrow Night and we could also see some patchy frost across portions of Northwest Wisconsin and Northeast Minnesota especially away from Lake Superior and in low lying/sheltered areas. Winds will be out of the north, northwest, or northeast during this period under 15 mph.

(Extended Forecast)

Quiet weather is on tap across our area for Monday-Tuesday as strong high pressure starts to push off to our south-east with time. High temperatures in the 60s and 70s are expected for both days with lows in the 40s and 50s.

The aforementioned upper level low currently over the Pacific Northwest is forecast to track south-east from mid to late week while a cold front attempts to drop south toward our area from Central Canada later this week. Gonna have to monitor the evolution of the disturbance to our west and the front to our north and see if they try to hook up or not. The possibility does exist for a few showers across southern parts of our area by Thursday with a few more showers possible across the entire area Thursday-Friday depending on if that cold front to our north drops south or not. Rain chances are not particularly big at this time and it is certainly possible that the disturbance approaching from the Pacific Northwest will keep the bulk of the showery weather southwest-south of our area later this week while the boundary to our north produces an isolated shower risk but nothing really more than that the way it looks now.

5 Day Forecast for Duluth/Superior

.Tonight… Areas of showers and drizzle ending This Evening. Cloudy skies with decreasing cloudiness Overnight. Patchy fog possible late. Low 37 to 42…A little warmer in Downtown Duluth. Wind east to northeast at 10 to 15 mph becoming north.

.Sunday… Patchy fog possible early. Partly sunny. High 60 to 65. Wind north to northwest at 10 to 15 mph.

.Sunday Night… Mostly clear. Patchy fog possible late. Low 40 to 45. Wind variable around 10 mph.

.Monday… Patchy fog possible early. Mostly sunny. High 68 to 73.

.Monday Night… Mostly clear. Low 45 to 50.

.Tuesday… Partly cloudy. High 70 to 75.

.Tuesday Night… Mostly clear. Low 48 to 53.

.Wednesday… Partly sunny. High 70 to 75.

Normal High Temperature Today 71 degrees

Normal Low Temperature Today 51 degrees

Tim

8/28/09: Friday’s Weather Report

Issued at 3:56 PM CDT, Friday, August 28th, 2009

Gale Event for the open waters of Central Lake Superior Tonight and Saturday with winds of 30-40 knots and waves peaking at 12 feet on Saturday…The gale warning is east of Duluth-Superior and the highest winds/waves will be found east-northeast of the Duluth Harbor as winds remain northerly.

Weather Highlights:

Very cool weekend with still a threat for some patchy frost…

Sunday looks a touch warmer compared to Saturday…

Weather History:

On this date in 1984… A record high temperature of 91 degrees occurred at Duluth, MN.

On this date in 1982… A record low temperature of 34 degrees occurred at Duluth, MN.

West Duluth rainfall total from last night and Today: 1.10″

Widespread rainfall amounts of one half inch to one inch fell across Northeast and Eastcentral Minnesota into Northwest Wisconsin last night and Today with some locally heavier totals especially across Central-Northern St. Louis County. The bulk of the rain fell east of a line from International Falls to Bena to Cross Lake.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Cold front responsible for the latest rain/scattered thunderstorm event to hit our area has moved into Central Wisconsin and Southeast Minnesota as of mid-Afternoon with low pressure of 1013 mb centered over the Keweenaw Penninsula. High pressure ridge of 1024-1026 mb was centered well to the northwest-north-and northeast of our local area. Mostly cloudy skies covered the area Today with areas of drizzle and light rain showers across Northeast Minnesota in an area of minus mid teens below zero H5 temperatures and 6.5 c/km Mid Level Lapse Rates while showers and scattered thunderstorms affected parts of Northwest Wisconsin until around midday as the actual cold front was moving through those areas. Highs Today were running a good 10-20 degrees colder than Thursday with 50s and 60s widespread across our area Today with 3 PM 850 mb temperatures of +5 to +9 degrees C. Winds Today were out of the north, northwest, or northeast at 10-20 mph.

(Today’s Upper Level Analysis)

Flow aloft was becoming more amplified once again…something we have seen numerous times over the last few months. An upper level trough (570 meters) was in the process of developing over the Upper Great Lakes/Central Ontario Province region with a (594 meter) H5 ridge in place across the Central Rockies/Southwest U.S. An unusually strong 100-110 knot H3 jet was in place This Afternoon from Central Manitoba Province southeast to Central Minnesota per RUC model analysis. Upper level low covered Northcentral Wisconsin with movement toward the east-southeast. Another H5 low was centered in Western Georgia with movement toward the north-east. Upper level trough was in place over the Northeast Pacific…Pacific Northwest…and British Columbia.

(Tonight)

Areas of showers and drizzle will linger This Evening across Northeast Minnesota and Northwest Wisconsin with most if not all the measurable rain coming to an end later Tonight. Upper level low/upper trough will be centered to our east Tonight with strong high pressure off to our north-northwest. Look for partly-mostly cloudy skies Tonight with lows in the 40s but some 30s are possible across Northern Minnesota depending on the amount of clear that may take place Tonight. Look for north or northwest winds at 10-20 mph.

(Saturday and Saturday Night)

Strong high pressure ridge will remain to our west-north during this period with a strong H5 low/trough centered to our east. Look for mostly cloudy-partly sunny skies on Saturday with areas of drizzle or rain showers possible with some possibility for lake enhanced shower activity for a time Saturday Afternoon especially along the South Shore of Lake Superior and possibly the Arrowhead of Minnesota where a N-NE 850 mb wind develops. Cold advection will persist across our area during this period with H85 temperatures falling to +2 to +6 degrees C. Highs Saturday will be in the 50s and 60s. Look for some clearing to take place Saturday Night with lows in the 30s and 40s. Could see some areas of frost develop late Saturday Night away from Lake Superior and mainly in Northcentral areas of Minnesota. Winds will be from the north or northwest at 10-20 mph during this period.

(Extended Forecast)

Strong high pressure will be in control of our weather from Sunday into Tuesday as it moves slowly across the Upper Midwest. Partly cloudy skies are expected during that time with high temperatures mainly in the 60s on Sunday with 60s and 70s for Monday. Lows Sunday Night will be in the 40s with some 30s and areas of frost possible in the traditional cold spots away from Lake Superior. Lows Monday Night will be mainly in the 40s. Temperatures are forecast to be around seasonal averages during the middle and end of next week the way it looks now as high pressure pushes off to our south-east. Will have to monitor the track of a disturbance coming out of the Northern Rockies during the Wednesday-Thursday time period. Majority of the models Today keep this system south of our area…but the latest GEM-GLOBAL brings it farther north with shower chances for western-southern parts of our area by Thursday.

5 Day Forecast for Duluth/Superior

.Tonight… Drizzle and light rain showers ending This Evening. Mostly cloudy with partial clearing possible late. Low 43 to 48. Wind north to northwest at 10 to 20 mph.

.Saturday… Mostly cloudy. Showers possible. High 57 to 62. Wind north at 10 to 20 mph. Chance of rain 30%.

.Saturday Night… Becoming partly cloudy. Low 38 to 43…a little warmer in Downtown Duluth. Wind north to northwest at 10 to 15 mph.

.Sunday… Partly sunny. High 60 to 65.

.Sunday Night… Mostly clear. Low 40 to 45.

.Monday… Mostly sunny. High 68 to 73.

.Monday Night… Mostly clear. Low 45 to 50.

.Tuesday… Partly cloudy. High 68 to 73.

Normal High Temperature Today 71 degrees

Normal Low Temperature Today 51 degrees

Tim

8/27/09: Thursday’s Weather Report

Issued at 4:51 PM CDT, Thursday, August 27th, 2009

Weather History:

On this date in 1984… A record high temperature of 92 degrees occurred at Duluth, MN.

On this date in 1986… A record low temperature of 32 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Widespread 70s were observed across our area Today for daytime highs with partly sunny to mostly cloudy skies. 850 mb temperatures as of 4 PM ranged from +12 to +15 degrees C with an area of -2 to +4 degree C H85 temperatures lurking to our north-northeast This Afternoon. Afternoon dewpoints were in the 50s to around 60 degrees with PWS of 1.00″-1.20″ across Northern Minnesota and from 0.80″-0.90″ across Northwest Wisconsin and Eastcentral Minnesota. An area of rain showers has developed This Afternoon over Northcentral Minnesota with movement of this rain toward the east-southeast around 20-25 mph. These showers were developing near a cold front which as of 4 PM extended from far Northern Lake Superior to Southern Ontario Province to Central North Dakota. Low pressure of 1016 mb was centered over the Northern South Dakota-Southern North Dakota area with high pressure of 1026 mb centered over Central Alberta Province with a 1026 mb high up in Northern Ontario Province.

(Today’s Upper Level Analysis)

Northwest H5 flow was in place across the Upper Midwest Today with an upper level low and upper level trough digging south-east into the Northern Plains and adjacent areas of Central-Western Canada. Another H5 low covered Northeast Canada with another upper low spinning off the coasts of Louisiana and Mississippi. Upper level ridging (594 meters) covered the Central Rockies and Southwest U.S.

(Tonight)

Cold front will settle south-east and will pass through most of our area Tonight. Atmosphere will be weakly unstable along and ahead of this boundary Tonight with CAPES generally under 500 j/kg with Lifted Indices around zero to -3 degrees C. Dewpoints will hold in the 50s and lower 60s with PWS of 1.00″-1.20″ and H85 td’s of +8 to +12 degrees C. Scattered showers will be found across Northeast Minnesota and Northwest Wisconsin Tonight with a few thunderstorms possible as well although severe weather is not expected in our area Tonight. Brief heavy downpours and occasional lightning strikes will be the main threats from any thunderstorm Tonight with a lesser threat for hail up to one half inch in diameter and wind gusts to 35 mph. Look for partly-mostly cloudy skies Tonight with lows in the 50s and lower 60s with some 40s possible in far Northern Minnesota. Winds will be out of the south, southwest, east, or north at 10-20 mph.

(Friday and Friday Night)

Low pressure will be pulling off to our north-east during this period with an upper level trough associated with an intensifying 100-120 knot upper level jet covering the Northern Plains-Upper Midwest. Heights will start to come down beginning this period along with falling 850 mb temperatures of +2 to +6 degrees C from north to south across our area by Friday Afternoon and Friday Night. Look for mostly cloudy-partly sunny skies on Friday with scattered showers and possibly an isolated thunderstorm in spots as colder H5 temperatures of -14 to -18 degree C spread south into our local area. A few showers could also linger into Friday Evening with partly-mostly cloudy skies expected. Highs Friday will be in the 50s and 60s with lows Friday Night in the 40s with some 30s possible in Northern Minnesota. Look for north or west winds at 10-20 mph during this period.

(Extended Forecast)

Strong H5 trough will cover the Upper Midwest/Great Lakes region this weekend with strong high pressure building into the Northern Plains. Could see a few showers around our area on Saturday otherwise it looks dry from Saturday Night through Sunday Night. Possibility also exists for a period of lake induced showers near Lake Superior Saturday Afternoon and Evening as 850 mb winds veer northeast for a time. Clouds are forecast to be rather extensive on Saturday although some sunny breaks could occur from time to time. Expect partly-mostly cloudy skies for Saturday Night-Sunday with mostly fair skies for Sunday Night. Highs Saturday will be in the 50s and 60s with mainly 60s expected for highs on Sunday. Lows Saturday Night and Sunday Night will be in the 30s and 40s. Areas of frost could develop both Saturday Night and Sunday Night for locations away from Lake Superior. Strong high pressure will remain in control of our weather early next week with a return flow starting to spread into our area by the middle of next week as this high begins to shift further south-east away from our area. It looks generally dry next week although we could see a few showers sometime Wednesday or early Thursday as we could see some sort of a disturbance approach the area from the Northern Plains. By later next week a cold front may start to approach the area from the northwest-north although it may hold off until next weekend.

5 Day Forecast for Duluth/Superior

.Tonight… Mostly cloudy with scattered showers. A thunderstorm also possible. Low 52 to 57. Wind southwest at 10 to 15 mph becoming northwest Overnight. Chance of rain 50%.

.Friday… Cooler. Showers possible. Considerable cloudiness. High 60 to 65. Wind northwest at 10 to 20 mph. Chance of rain 30%.

.Friday Night… Partly to mostly cloudy. Low 43 to 48. Wind northwest at 10 to 15 mph.

.Saturday… Showers possible. Mostly cloudy. High 57 to 62. Chance of rain 20%.

.Saturday Night… Becoming partly cloudy. Low 40 to 45.

.Sunday… Partly sunny. High 60 to 65.

.Sunday Night… Mostly clear. Low 38 to 43.

.Monday… Mostly sunny. High 63 to 68.

Normal High Temperature Today 71 degrees

Normal Low Temperature Today 51 degrees

Tim