/Issued 3:34 PM CDT, Monday, June 30, 2014/
Here’s an infrared satellite image centered on the Great Lakes at 3:45 PM Today. A massive MCS or mesoscale convective system is plowing east-northeast through parts of Iowa, Illinois, and Wisconsin late This Afternoon with widespread wind damage – some of which has been significant. Source, NWS.
Temperature & precipitation report for Duluth, MN (Airport location)
6/22: 63F/10 degrees below normal
6/23: 82F/9 degrees above normal
6/24: 63F/10 degrees below normal
6/25: 60F/13 degrees below normal
6/26: 67F/7 degrees below normal
6/27: 71F/3 degrees below normal
6/28: 80F/6 degrees above normal
6/22: 49F/2 degrees below normal
6/24: 46F/6 degrees below normal
6/25: 48F/4 degrees below normal
6/26: 48F/4 degrees below normal
6/27: 52F/1 degree below normal
6/28: 60F/7 degrees above normal
Total precipitation: 0.82″
Last week’s temperature departure map. Persistent east wind off Lake Superior kept it a lot cooler near the big lake last week compared to inland locations. Source, Midwest Regional Climate Center.
Last week’s precipitation departure map. Source, Midwest Regional Climate Center.
Local storm reports for June 29, 2014
Source: National Weather Service Duluth, Minnesota
*6:51 PM CDT: 1.00″ HAIL. 4 W of Clam Lake, WI (Bayfield County)
*7:25 PM CDT: 1.50″ HAIL. Montreal, WI (Iron County)
*7:27 PM CDT: 1.25″ HAIL. Gile, WI (Iron County)
*7:30 PM CDT: 0.75″ HAIL. Montreal, WI (Iron County)
*7:37 PM CDT: 0.88″ HAIL. 1 S of Mercer, WI (Iron County)
*7:41 PM CDT: 1.00″ HAIL. Mercer, WI (Iron County)
*7:55 PM CDT: 0.75″ HAIL. Squaw Lake, MN (Itasca County)
*8:00 PM CDT: 0.75″ HAIL. Mercer, WI (Iron County)
Storm reports map for June 29, 2014. Numerous sub-severe hail reports around the Northland on Sunday with a handful of severe hail reports (green dots on the map) across Northwestern Wisconsin. Note: Red dots are tornado reports. Blue dots are damaging wind reports. Source, Storm Prediction Center.
Rainfall report for June 29, 2014
Source: National Weather Service Duluth, Minnesota
Duluth, MN: 0.35″
International Falls, MN: 0.22″
Brainerd, MN: 0.23″
Hibbing, MN: 0.24″
Finland, MN: 0.18″
9 N of Bayfield, WI: 0.41″
Weather Summary for June 30, 2014
Location: NE Minnesota & NW Wisconsin
A very strong area of low pressure averaging 982mb was centered along the Manitoba-Ontario border Today. To get a low pressure this deep at this time of year is quite rare. Winds aloft of 100 knots or greater were found from South Dakota to Minnesota Today with impressive height falls on the order of 30-60 meters moving east out of the Northern Plains This Afternoon.
Powerful southwesterly winds occurred over the Northland Today or to the S/SE of the deep low to our NW with wind gusts in the 30-50 mph range. Winds were strong enough to knock down trees and power lines which then resulted in scattered power outages over some parts of the area This Afternoon.
High temperatures Today were in the 70s and 80s with partly to mostly cloudy skies.
Here’s Today’s weather setup per midday water vapor satellite image. Source, COD website.
Forecast Discussion for NE Minnesota & NW Wisconsin
Short Term Forecast – Confidence: High.
Tonight (June 30)
Low pressure will move into Ontario Tonight. Partly to mostly cloudy skies will cover the Northland with the possibility for some scattered showers which will develop to the northwest and then spread south/east during the night. Isolated thunderstorms are also possible mainly This Evening. Low temperatures will be in the 50s and 60s with southwest winds turning west or northwest. Wind speeds will range from 10 to 20 mph with wind gusts of 30-50 mph continuing especially during the Evening hours.
Tuesday and Tuesday Night (July 1)
July will begin on a cool note with mostly cloudy skies covering the Northland with a few showers possible as well. Deep low pressure over Ontario will draw a fairly chilly airmass south into our area with 850mb temperatures in the +2 to +6C range during this period. Daytime highs are forecast to only be in the 50s and 60s with lows Tomorrow Night in the 40s and 50s. Winds will be out of the northwest at 10-20 mph with higher gusts likely.
Sure is a lot of blue color on this 850mb temperature map for Tuesday PM. Blue simply means cool temperatures as we kick off July. Source, 18z NAM via COD website.
Extended Forecast – Confidence: High.
Wednesday through Friday (July 2-4)
Mainly dry weather is expected from mid to late week as high pressure passes over the Upper Midwest. High temperatures are forecast to be in the 60s and 70s on Wednesday with mainly 70s on tap for Thursday and Friday. Lows Wednesday Night and Thursday Night will be in the 40s and 50s.
Long Range Forecast – Confidence: Medium.
Computer models continue to show a westerly, perhaps southwesterly upper level flow pattern developing from the 5th-8th which could lead to near or above average temperatures in our area along with the possibility for some showers or thunderstorms at times.
*Flood Warning information statement per NWS* http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=flood%20warning
5 DAY FORECAST FOR DULUTH AND SUPERIOR
.Tonight… Windy. Partly to mostly cloudy. A few showers possible. Low 57 to 62. Wind southwest at 15 to 25 mph with gusts over 40 mph mainly This Evening.
.Tuesday… Breezy and cooler. Considerable cloudiness. A few showers possible. High 63 to 68. Wind west to northwest at 15 to 25 mph.
.Tuesday Night… Mostly cloudy. Low 47 to 52. Wind northwest at 10 to 20 mph.
.Wednesday… Partly sunny. High 67 to 72.
.Wednesday Night… Partly cloudy. Low 47 to 52.
.Thursday… Partly cloudy. High 70 to 75.
.Thursday Night… Partly cloudy. Low 50 to 55.
.4th of July… Partly to mostly cloudy. High 70 to 75.
Normal temperatures for Today
Sunrise Tuesday: 5:18 AM CDT
Sunset Tuesday: 9:07 PM CDT