7/31/09: Friday’s Weather Report

Issued at 3:58 PM CDT, Friday, July 31st, 2009

Weather History:

On this date in 2006… A record high temperature of 95 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Partly sunny to mostly cloudy skies were common across our area Today with an area of scattered showers and isolated thunderstorms affecting parts of Northeast Minnesota and Northwest Wisconsin This Afternoon thanks in part to some lingering cold air aloft with -14 degree C 500 mb temperatures. Brief heavy downpours have been the biggest threat from this activity Today. High temperatures were generally in the upper 60s and 70s Today with 300 PM 850 mb temperatures of +11 to +13 degrees C. Afternoon dewpoints were running in the 50s with PWS of 0.80″-1.00″. Weather map This Afternoon featured an area of low pressure of 1006 mb centered over Southern Manitoba Province with a secondary low of 1006 mb centered over the Northeast South Dakota-Southeast North Dakota area. A strong cold front was connected to both lows and extended from far Northwest Minnesota to Southeast North Dakota to Eastcentral South Dakota as of 3 PM CDT.

(Today’s Upper Level Analysis)

A powerful shortwave and upper level trough with 60 meter 12 hour 500 mb height falls was shifting south-east into North Dakota This Afternoon with unseasonably cold H5 temperatures of -18 to -22 degrees C found over Manitoba and Saskatchewan Provinces. A strengthening H3 jet streak of 80 knots was located on the backside of this system over Eastern Saskatchewan Province This Afternoon per RUC model analysis with a 70 knot H3 jet streak found on the south-southeast side of this system from Southeastern Montana through Southern North Dakota and Northern South Dakota.

(Tonight)

A strong cold front will push east through our area during the night. Warm air advection and some moist advection will commence This Evening ahead of this potent weather system. A 30-45 knot southwesterly H85 jet is forecast to develop ahead of the cold front by mid-Evening and this combined with strong forcing and convergence near the frontal boundary will lead to a fairly widespread area of rain with scattered thunderstorms across all of our area Tonight. The precipitation will spread west to east through the night…reaching areas from International Falls toward Grand Rapids…Brainerd…and Aitkin between 600 PM-800 PM…then spreading east toward Ely…Duluth…Hinckley…and Pine City between 900 PM-1100 PM…The rain area will then reach far Northeast Minnesota and Northwestern Wisconsin toward Midnight or a little after the Midnight hour. Instability looks fairly weak with CAPES generally under 500 j/kg with Lifted Indices of zero to around -2 degrees C…as a result the potential for severe weather is quite low. However this system is very dynamic and will have lots of upper level support working for it with a 60-80 knot H3 jet stream which is forecast to extend from the Dakotas toward Northcentral Minnesota Tonight. With all this upper air support and the strong lift associated with the cold front we should see at least some thunderstorm activity occur with a threat for locally heavy rainfall. Lows Tonight will be in the 40s and 50s with some 60s possible toward Hayward and Park Falls. Winds will be out of the south, southwest, or southeast at 10-20 mph with winds shifting to the northwest at 10-25 mph during the night as the cold front moves through.

(Saturday and Saturday Night)

Strong cold air advection will be in full force on Saturday as H85 temperatures drop to +4 to +8 degrees C across our area. The strong cold front will exit to our east early Saturday with a powerful H5 low centered to our north-northeast while unusually cold air in the upper levels spreads south into our area on Saturday. Look for partly-mostly cloudy skies Tomorrow with a risk for a few showers or possibly a thunderstorm or two mainly across Northern areas of Minnesota. Highs Tomorrow will be in the 60s and lower 70s but some areas north of the Iron Range could hold in the 50s if clouds remain persistent. Lows Tomorrow Night will be in the 40s and 50s with partly-mostly cloudy skies expected. Look for gusty northwest winds at 15-30 mph Tomorrow with winds under 15 mph from the northwest Tomorrow Night.

(Extended Forecast)

Plenty of model uncertainty continues Today from late this weekend into early next week. Models are struggling with the timing of disturbances/low pressure systems as well as the track of such features and with how far north-east to push the warmer air. The GFS continues to be the warmest model with +12 to +20 degree C H85 temperatures surging north-northeast into most of our area later this weekend…The NAM on the other hand is much cooler with H85 temps of just +4 to +8 degrees C with all the warm air remaining south of our area…but it could clip the Brainerd area on Sunday. The GEM-GLOBAL and UK models push warmer air into our local area but they hold it off until early next week…

With chilly air remaining to our north and the warmer air trying to push in from the Northern Plains…a fairly strong baroclinic zone will become established which is fairly rare for early August. This baroclinic zone combined with a fast northwest flow aloft will result in a couple of low pressure systems traversing the Northern Plains/Upper Midwest from Sunday into early next week. Again timing of all this is subject to change.

Any one of those disturbances could trigger some shower or thunderstorm activity over portions of our area from later this weekend into early next week. This setup actually is favorable for severe weather to develop…but questions remain on if enough moisture and instability can build north out ahead of these systems.

High temperatures Sunday and Monday will be in the 60s and 70s…these temperatures may end up cooler or warmer though depending on how everything sets up. Low temperatures Sunday Night and Monday Night will be in the 40s and 50s.

5 Day Forecast for Duluth/Superior

.Tonight… Rain and a few thunderstorms developing after 9 PM. Mostly cloudy. Low 50 to 55. Wind south at 10 to 20 mph becoming northwest at 15 to 25 mph after Midnight.

.Saturday… Windy. Variable cloudiness. An Afternoon shower or thunderstorm possible. High 67 to 72. Wind northwest at 15 to 30 mph. Chance of rain 20%.

.Saturday Night… Becoming partly cloudy. Low 47 to 52. Wind northwest at 10 to 15 mph.

.Sunday… Partly sunny. High 68 to 73.

.Sunday Night… Partly to mostly cloudy. Showers possible. Low 50 to 55. Chance of rain 20%.

.Monday… Showers possible. Partly sunny. High 70 to 75. Chance of rain 20%.

.Monday Night… Partly cloudy. Low 48 to 53.

.Tuesday… Partly cloudy. High 65 to 70.

Normal High Temperature Today 77 degrees

Normal Low Temperature Today 56 degrees

Tim

7/30/09: Thursday’s Weather Report

Issued at 3:48 PM CDT, Thursday, July 30th, 2009

Weather History:

On this date in 1992… A record low temperature of 42 degrees occurred at Duluth, MN.

Note: 0.40″ of rain here in West Duluth in about a 10 minute time period around 2 PM Today as a pretty strong thunderstorm moved through which was accompanied by a brief period of small hail and wind gusts around 30 mph.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

A pretty unsettled day as cold air aloft combined with minimal surface heating led to a fairly wet/stormy day across our area as numerous showers and thunderstorms developed and passed south-east through Northeast Minnesota and Northwest Wisconsin. Afternoon 500 mb temperatures down to -16 degrees C along with CAPES under 1000 j/kg with LI’S of zero to around -2 degrees C and Lapse Rates from 6.0-7.0 c/km was enough to kick off this convection Today with a few of the storms for brief periods of time even producing some small hail around one quarter inch in diameter thanks to low freezing levels of around 2500 feet! Mostly cloudy to partly sunny skies were common across our area Today with high temperatures mainly in the 60s to around 70 degrees. 3 PM 850 mb temperatures were sitting right around +9 degrees C. Winds Today were out of the north or west at 10-20 mph. Surface map This Afternoon featured an area of low pressure of 1000 mb centered over Northeast Ontario Province with a cold front attached to this low extending southwest into Northwestern Wisconsin.

(Today’s Upper Level Analysis)

Northwest flow aloft prevailed Today across the Upper Midwest with a (558 meter) H5 low centered over Northern Ontario Province while a cold H5 trough continued to cover the Northern Plains and Upper Midwest with another potent upper level trough shifting south-east out of Northwestern Canada.

(Tonight)

Scattered showers and thunderstorms will decrease in coverage and intensity by late This Evening…Until then expect a few of the storms to contain locally heavy downpours and occasional cloud to ground lightning strikes and possibly some brief showers of quarter inch diameter hail. Look for partly-mostly cloudy skies Tonight with the potential for some areas of late night fog. Lows will fall into the 40s and 50s with north or west winds under 15 mph.

(Friday and Friday Night)

The cold upper level trough over our area Today will shift east during this period which will make way for another system which will move in from the west… A cold front will move east into the Upper Midwest by Friday Night with a 30-40 knot southwest low level jet developing ahead of this system which will cause warm air advection and some moist advection to occur out ahead of the cold front Friday Night. Look for partly sunny-mostly cloudy skies on Friday with a few showers or thunderstorms possible across Northern Minnesota and out toward the Ashland/Hayward/Park Falls area in Northwestern Wisconsin… A better chance for showers or thunderstorms will return to the entire area Friday Night as forcing/lift associated with the cold front shift east through our area. Severe threat looks fairly minimal at this point due in part to the front passing through the area later Friday Night. Highs Tomorrow will be in the 60s and 70s with lows Tomorrow Night in the 40s and 50s. Look for southwest winds at 10-20 mph on Friday with southwest or northwest winds at 10-20 mph Friday Night.

(Extended Forecast)

A rather tight baroclinic zone more common in the Autumn or Winter months is forecast to become established across the Northern Plains/Upper Midwest later this weekend into early next week with H85 temperatures hovering around +6 degrees C across far Northern Minnesota with +15 to +22 degree C H85 temps spreading into Western-Southern parts of Minnesota. One or more areas of low pressure could track along this temperature gradient from Sunday into early next week… Forecast models Today continue to be in disagreement however with how far north the warmer air will spread which could have an impact on the final tracks that these surface lows could take. A few showers or thunderstorms will be possible across Northeast Minnesota and Northwest Wisconsin later this weekend through early next week…but timing these systems will continue to be difficult this far out. High temperatures Saturday and Sunday will be in the 60s and 70s but some 80s are possible on Sunday toward the Brainerd area. Lows Saturday Night will be in the 40s and 50s with lows Sunday Night in the 50s to around 60 degrees.

5 Day Forecast for Duluth/Superior

.Tonight… Scattered showers ending This Evening. Skies becoming partly cloudy. Patchy fog possible Overnight. Low 47 to 52. Wind north to northwest at 5 to 15 mph. Chance of rain 50%.

.Friday… Partly sunny. High 70 to 75. Wind southwest at 10 to 20 mph.

.Friday Night… Showers or thunderstorms developing. Mostly cloudy. Low 51 to 56. Wind south to southwest at 10 to 20 mph becoming northwest at 10 to 20 mph Overnight. Chance of rain 50%.

.Saturday… Showers possible early. Partly sunny. High 68 to 73. Chance of rain 30%.

.Saturday Night… Partly cloudy. Low 48 to 53.

.Sunday… Partly sunny. High 68 to 73.

.Sunday Night… Partly to mostly cloudy. Low 50 to 55.

.Monday… Partly cloudy. High 70 to 75.

Normal High Temperature Today 77 degrees

Normal Low Temperature Today 56 degrees

Tim

7/29/09: Wednesday’s Weather Report

Issued at 2:36 PM CDT, Wednesday, July 29th, 2009

Here are some departure from normal temperature stats across Minnesota for July 2009…Data provided by Paul Douglas and the St. Cloud Times.

International Falls MN: -7.3 degrees…Coolest July on record through the 28th…

Duluth MN: -3.1 degrees…Top ten coolest July’s on record through the 28th…

St. Cloud MN: -3.3 degrees

Twin Cities MN: -2.9 degrees

Rochester MN: -4.5 degrees

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Partly sunny-mostly cloudy skies were found over our area Today with a few spotty showers at times affecting mainly Northern areas of Minnesota…however the shower coverage Today has been less compared to recent days. High temperatures Today were in the 60s to lower 70s with 2 PM 850 mb temperatures of +9 to +11 degrees C. Winds Today were generally from the west or north under 15 mph.

(Today’s Upper Level Analysis)

As one upper level low heads into Northeastern Canada This Afternoon a new upper level low drops south-east into the Northern Plains…A fairly vigorous upper level trough associated with minus 18 to minus 20 degree C H5 temperatures were in place This Afternoon across North Dakota near this upper trough.

(Tonight)

Upper level disturbance along with an upper level low will continue to approach our area from the west Tonight…A large area of rain currently over Eastern South Dakota and Western Minnesota is forecast to remain on an easterly track Tonight which means that Southern areas will have the best chance at seeing some rain for Tonight…or mainly affecting Crow Wing…Southern Aitkin…Pine…Burnett…Washburn…Sawyer…and Price counties in our local area. Other more instability type showers (spotty in nature) should come to an end before Midnight across Northcentral areas of Minnesota. Look for partly-mostly cloudy skies Tonight with lows in the 40s and 50s along with west or north winds under 15 mph.

(Thursday and Thursday Night)

Upper level trough will be centered across the Upper Midwest during this period with minus 14 to minus 20 degree C H5 temperatures over our area. Scattered showers will be possible just about anywhere in Northeast Minnesota and Northwest Wisconsin on Thursday into early Thursday Evening…An isolated risk for thunderstorms exists as well especially if we can get some sunshine to occur and some warming at the surface. CAPES generally around 100-250 j/kg and LI’S around zero degrees C are expected across our area Thursday Afternoon. Highs Tomorrow will be in the 60s to around 70 degrees with lows Tomorrow Night in the 40s and 50s. Winds will be out of the northwest at 10-20 mph during this period. Expect partly sunny-mostly cloudy skies on Thursday with partly-mostly cloudy skies Thursday Night.

(Extended Forecast)

Thursday’s system exits to our east on Friday making way for yet another area of low pressure/cold front/and upper level trough which will cruise through the area from Friday Night through the weekend… The best chance for showers across our area looks to take place Friday Night and Saturday with an isolated risk for thunderstorms as well. Right now it appears that Sunday and Sunday Night will be mainly dry…although a few Afternoon-Evening showers cannot be ruled out mainly in Northern Minnesota. There continues to be some model disagreement Today for late this weekend so things may change a bit from day to day until the models settle down…but right now it looks mainly dry later this weekend based on latest model projections. High temperatures Friday should reach the 70s for most areas as southwest winds develop ahead of the next cold front. Lows Friday Night will be mainly in the 50s. Highs Saturday will be in the 60s and 70s with lows Saturday Night in the 40s and 50s.

5 Day Forecast for Duluth/Superior

.Tonight… Considerable cloudiness. Showers possible. Low 50 to 55. Wind west to northwest under 15 mph. Chance for rain 30%.

.Thursday… Considerable cloudiness. Scattered showers…isolated thunderstorms also possible. High 66 to 71. Wind northwest at 10 to 20 mph. Chance of rain 40%.

.Thursday Night… Showers possible early. Becoming partly cloudy. Low 48 to 53. Wind northwest at 5 to 15 mph. Chance of rain 30%.

.Friday… Partly sunny. High 70 to 75.

.Friday Night… Mostly cloudy. Showers or thunderstorms possible. Low 51 to 56. Chance of rain 40%.

.Saturday… Showers possible mainly early. Partly sunny. High 68 to 73. Chance of rain 40%.

.Saturday Night… Partly cloudy. Low 48 to 53.

.Sunday… Partly sunny. High 68 to 73.

Normal High Temperature Today 77 degrees

Normal Low Temperature Today 56 degrees

Tim

7/28/09: Tuesday’s Weather Report

Issued at 4:00 PM CDT, Tuesday, July 28th, 2009

Weather History:

On this date in 2006… A record high temperature of 97 degrees occurred at Duluth, MN.

On this date in 1992… A record low temperature of 45 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Low pressure of 996 mb was centered over the Northeast half of Ontario Province This Afternoon with high pressure of 1022 mb centered over the Eastern half of Alberta Province. Cold temperatures aloft of -14 to -18 degrees C has shifted south into the area Today and this has helped in producing some spotty shower activity with even a rumble or two of thunder This Afternoon out in the Itasca…Cass…and Crow Wing county areas of Minnesota. Partly sunny to mostly cloudy skies covered our area Today with high temperatures in the 60s to lower 70s. 850 mb temperatures as of 3 PM ranged from +6 to +9 degrees C. Winds Today were out of the north or west at 10-20 mph with some higher gusts.

(Today’s Upper Level Analysis)

Main upper level low (558 meters) was located in the Northeast part of Ontario Province This Afternoon per RUC model analysis/water vapor satellite imagery. A secondary upper level low was dropping south-southeast out of Southeastern Manitoba Province This Afternoon. Additional upper level energy was dropping south into the Northern Rockies late Today. H5 ridging has really been surpressed over the last couple of days with the ridge axis Today extending from Central Washington southeast to Southern Colorado to Eastern Texas to Eastern South Carolina. The core of the ridge (594 meters) was centered over Southern Arizona This Afternoon.

(Tonight)

Instability showers that popped up Today over Northeast Minnesota and Northwest Wisconsin will come to an end by Midnight. Skies will remain partly-mostly cloudy Tonight with lows in the 40s and 50s. Winds will be out of the north or west around 20 mph or less.

(Wednesday and Wednesday Night)

Cold air aloft will remain over our area on Wednesday and this could be enough to generate a few pop up showers mainly across Northern Minnesota. Our attention will then focus to our west where more upper level energy will be located… This energy will start to approach our area by Wednesday Night which will lead to a risk for showers mainly over southern parts of our area. The 12z model run from Today continue to disagree as to the timing of this system. The NAM and GFS have virtually flipped flopped from 24 hours ago…with Today’s 12z NAM bringing rain into Duluth-Superior by Wednesday Evening with the GFS holding off the rain until later Wednesday Night… The UK/GEM-GLOBAL/and NAVY models continue to keep things mainly dry across our area Wednesday Night… *Note…The 18z NAM has slowed down the onset of the rain now and does not have it reaching Duluth-Superior until late Wednesday Night… Highs Wednesday under partly sunny-mostly cloudy skies will be in the 60s and 70s with lows Wednesday Night under partly-mostly cloudy skies in the 40s and 50s. Winds will be out of the southwest, north, or west around 20 mph or less during this period.

(Extended Forecast)

An upper level trough over our area along with cold temperatures aloft will set the stage for the possibility of scattered showers and perhaps an isolated thunderstorm across Northeast Minnesota and Northwest Wisconsin on Thursday…Should dry out Thursday Night and most of Friday…Then the next weather system associated with an area of low pressure…cold front…and H5 trough will shift east-southeast through our area from Friday Night through Saturday with another system possibly moving through parts of the Upper Midwest later this weekend. Scattered showers or thunderstorms will be possible at times across our area from late Friday through the weekend…Although the forecast models are showing some differences with the system for later this weekend…so it may end up dry at least for parts of our area on Sunday. High temperatures Friday and Saturday will be in the 60s and 70s with lows Friday Night and Saturday Night in the 40s and 50s.

5 Day Forecast for Duluth/Superior

.Tonight… Showers possible before Midnight… Otherwise partly to mostly cloudy. Low 48 to 53. Wind northwest at 10 to 20 mph. Chance of rain 40%.

.Wednesday… Variable cloudiness. High 69 to 74. Wind northwest at 10 to 15 mph.

.Wednesday Night… Mostly cloudy. Showers possible late. Low 50 to 55. Wind north at 5 to 15 mph. Chance of rain 20%.

.Thursday… Showers possible. Mostly cloudy. High 63 to 68. Chance of rain 30%.

.Thursday Night… Showers possible early. Partly to mostly cloudy. Low 48 to 53. Chance of rain 20%.

.Friday… Partly sunny. High 70 to 75.

.Friday Night… Showers or thunderstorms possible. Mostly cloudy. Low 51 to 56. Chance of rain 20%.

.Saturday… Showers or thunderstorms possible. Partly sunny. High 68 to 73. Chance of rain 20%.

Normal High Temperature Today 77 degrees

Normal Low Temperature Today 56 degrees

Tim

7/27/09: Monday’s Weather Report

Issued at 2:31 PM CDT, Monday, July 27th, 2009

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today’s Weather)

Low pressure of 1008 mb has shifted into Southern Minnesota This Afternoon…This low combined with some warm air advection north-east of the surface low helped to produce an area of thunderstorms and heavy rainfall late last night and early This Morning over portions of Eastcentral Minnesota into far Northwest Wisconsin… Duluth doppler radar rainfall estimates indicated that 1.25″-3.50″ of rain fell over the counties of Southern Cass MN…the Southern half of Crow Wing MN…far Southern Aitkin MN…Central-Southern Pine MN…Southern half of Burnett WI…and Southern Washburn WI…The highest totals were found over Southwestern Aitkin county through Southern Crow Wing and Southern Cass Counties in Minnesota. Keep in mind that some of these totals could be a tad on the high side due to contamination factors. Another area of low pressure was centered over Western Ontario Province This Afternoon with a cold front attached to this low dropping southeast through Northeast and Eastcentral Minnesota as of mid-Afternoon. This northern system is accompanied by a very strong H5 low which was twirling east-southeast through Southern Ontario Province This Afternoon with a broader H5 trough sinking south out of Central Canada which was associated with -16 to -20 degree C 500 mb temperatures This Afternoon along with 60 meter 12 hour H5 height falls. Scattered showers and thunderstorms have been tracking southeast through parts of Northern-Northeast Minnesota Today in association with this upper level system and surface cold front. High temperatures across the area were in the 70s to lower 80s Today with Afternoon dewpoints running in the 50s to around 60 degrees with PWS of 0.90″-1.30″ as of 2 PM. 850 mb temperatures as of midday ranged from +12 to +15 degrees C. Winds Today were out of the northwest, west, or southwest at 10 to around 20 mph.

(Today’s Upper Level Analysis)

Northwest flow aloft was found across the Upper Midwest This Afternoon with a 70-90 knot H3 jet streak extending from Central Saskatchewan southeast to Northwest Minnesota per RUC model analysis.

(Tonight)

Cold front will exit Northeast Minnesota and Northwest Wisconsin This Evening. The airmass across our area will remain marginally unstable through mid-Evening with CAPES up to 1000 j/kg with LI’S of zero to -4 degrees C along with Low Level Lapse Rates of 7.0-8.0 c/km. 40 knot northwesterly 500 mb flow coupled with around 30-40 knots of vertical shear could cause an isolated stronger thunderstorm risk into early Evening…although it appears that most of the thunderstorms will stay below severe levels across our area…Heavy downpours and occasional lightning strikes will be the main threats with still a risk for some hail up to one half inch in diameter and wind gusts up to 40 mph if any stronger thunderstorm does develop early Tonight. Otherwise look for partly-mostly cloudy skies during the night with a few lingering showers possible through the Overnight hours. Lows will be in the 50s Tonight with southwest or northwest winds at 10-20 mph.

(Tuesday and Tuesday Night)

An upper level low pressure system will be centered to our north-northeast during this period with a secondary trough/cold front pushing south across our area. Cold advection will overspread the area from north to south with 850 mb temperatures falling to +6 to +8 degrees C during this period. H5 temperatures falling to around -16 degrees C combined with modest surface heating will likely contribute to the development of spotty showers Tuesday and Tuesday Evening across Northeast Minnesota and Northwest Wisconsin. Look for partly sunny-mostly cloudy skies for Tuesday and partly-mostly cloudy skies Tuesday Night. Highs Tomorrow will be in the 60s and 70s with lows Tomorrow Night in the 40s and 50s. Look for north or west winds at 10-20 mph during this period with gusts up to 25 mph on Tuesday.

(Extended Forecast)

An active and unsettled weather pattern looks to continue at times from mid-week into this coming weekend. The overall pattern looks more like autumn with frequent disturbances and cold frontal boundaries affecting our weather. For Wednesday…We could see a few showers pop up mainly across Northern Minnesota as cold air aloft remains overhead associated with the first upper level system currently to our north. By Wednesday Night and Thursday a new disturbance looks to approach the area from the west… There are differences with the timing of this system as well as the northern extent of the rain shield that looks to accompany this feature. The 12z GFS from Today and for the last day or so has been the farthest north of all the models with rain moving north into Duluth-Superior by late Wednesday Afternoon and lasting through most of Thursday… The 12z NAM from Today is slower than the 12z GFS and has rain lifting into Duluth-Superior later Wednesday Night… The last few runs per NAVY and GEM-GLOBAL models keep things dry until Thursday… Stay tuned… Another batch of very chilly air aloft looks to slip south into our area on Thursday behind this next disturbance and that coupled with any minor amount of surface heating could get some instability type showers going across Northeast Minnesota and Northwest Wisconsin Thursday and Thursday Evening… The next low pressure system with it’s cold front and potent upper level trough looks to affect our weather beginning later in the day Friday and at least through Saturday…possibly even into Sunday. This late week/weekend system should bring more scattered showers/thunderstorms to the area. High temperatures Wednesday and Thursday will be in the 60s to lower 70s with lows Wednesday Night and Thursday Night in the 40s and 50s.

5 Day Forecast for Duluth/Superior

.Tonight… A few showers or thunderstorms possible This Evening. Variable cloudiness. Low 52 to 57. Wind west to northwest at 10 to 20 mph. Chance of rain 30%.

.Tuesday… Partly sunny. Showers possible. High 70 to 75. Wind northwest at 10 to 20 mph with gusts up to 25 mph. Chance of rain 30%.

.Tuesday Night… Becoming partly cloudy. Low 50 to 55. Wind northwest at 10 to 15 mph.

.Wednesday… Partly sunny. High 68 to 73.

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

.Thursday… Showers possible. Mostly cloudy. High 68 to 73. Chance of rain 20%.

.Thursday Night… Partly to mostly cloudy. Low 48 to 53.

.Friday… Partly sunny. Showers or thunderstorms possible. High 70 to 75. Chance of rain 20%.

Normal High Temperature Today 77 degrees

Normal Low Temperature Today 56 degrees

Tim