/Issued 3:54 PM CDT, Monday, August 5, 2013/
*Rainfall map from Today, August 5, 2013. Note the 2 maxed out areas of rain earlier Today, 1 affected much of Southern Minnesota with localized totals of 1″+. The 2nd area was over Northcentral and Northeast Minnesota into Northwest Wisconsin where some half inch totals were reported. (Source, Iowa Environmental Mesonet)
Rainfall report for August 5, 2013
Source: National Weather Service Duluth, Minnesota
Duluth, MN: 0.50″
International Falls, MN: 0.10″
Hibbing, MN: 0.55″
Hayward, WI: 0.23″
Dixon Lake, MN: 0.33″
Togo, MN: 0.28″
Duluth, MN (NWS) 0.49″
4 E of Island Lake, MN: 0.38″
Upson, WI: 0.18″
Sarona, WI: 0.20″
Temperature and precipitation report for Duluth, Minnesota (Airport location)
July 28-August 3, 2013
7/28: 71 degrees/6 degrees below normal
7/29: 76 degrees/1 degrees below normal
7/30: 72 degrees/5 degrees below normal
7/31: 78 degrees/1 degrees above normal
8/1: 77 degrees/1 degrees above normal
8/2: 76 degrees/Normal
8/3: 75 degrees/1 degrees below normal
7/28: 51 degrees/5 degrees below normal
7/29: 47 degrees/9 degrees below normal
7/30: 61 degrees/5 degrees above normal
7/31: 59 degrees/3 degrees above normal
8/1: 58 degrees/2 degrees above normal
8/2: 52 degrees/4 degrees below normal
8/3: 51 degrees/5 degrees below normal
Total precipitation: 0.20″
*Temperature departure map for last week. (Source, Midwest Regional Climate Center)
*Precipitation departure map for last week. (Source, Midwest Regional Climate Center)
Today’s Weather Summary for NE Minnesota and NW Wisconsin
Parts of the Northland did get some rain earlier Today as a weak area of low pressure and a surface trough moves slowly east through the Upper Midwest. This front as of late Afternoon was over Eastern Minnesota with a few showers redeveloping in parts of the area thanks to a bit of heating during the Afternoon which has resulted in a slightly unstable atmosphere. High temperatures Today were in the 60s and 70s with west, east, or south winds at 5 to 15 mph.
*791 record cold maximum temperatures and low temperatures across the U.S. from 29 July thru 5 August, 2013. (Source, WeatherNation)
Forecast Discussion for NE Minnesota and NW Wisconsin
Short Term Forecast – Confidence: High.
Tonight (August 5)
A few showers or isolated thunderstorms should come to an end before Midnight which will leave us with a partly to mostly cloudy sky during the night with areas of fog possible. Lows will mainly be in the 50s, but a few 40s are possible. Winds will be out of the south, north or east at 5 to 15 mph.
Tuesday and Tuesday Night (August 6)
An area of low pressure is forecast to move east through the Upper Midwest during this period with a cold front tracking SE out of Northwestern Minnesota. Scattered showers or thunderstorms should occur at times through Tomorrow Evening with favorable lift and rather decent upper level energy in place to support some showers.
Thunderstorms could also occur especially if we can stay away from widespread cloudiness, which at the moment doesn’t look all that likely. ‘If’ there is sufficient heating then the potential will be there for better instability to develop with CAPE around 1000 j/kg with Lifted Indices down around -2 to -4C. Shear does look pretty good on Tuesday so again if we can get some heating and better instability to develop, then there could be a severe thunderstorm threat during the Afternoon/Evening hours mostly affecting the Southern portion of the Northland.
Highs Tomorrow will be in the 60s and 70s with lows Tomorrow Night in the 40s and 50s. South, west or east winds on Tuesday will become northwest Tuesday Night at 10 to 20 mph.
*Tuesday’s calibrated severe thunderstorm forecast. The highest numbers are showing up in Central, Southern, and Eastern Minnesota and far Western Wisconsin for Tuesday. Have to get some heating/sunshine during the day for this potential to be realized. Will see what happens… (Source, SREF 15z model)
Extended Forecast – Confidence: High.
Wednesday through Friday (August 7-9)
Wednesday and Friday are looking mainly dry at the moment with some rain possible on Thursday as another cold front moves through the region. Highs Wednesday-Friday will be in the 60s with a few 70s possible as well. Lows Wednesday Night and Thursday Night will be in the 40s and 50s.
Long Range Forecast – Confidence: High.
Below to near normal temperatures are forecast through this period. Looks kinda dry as well.
5 DAY FORECAST FOR DULUTH/SUPERIOR
.Tonight… Partly to mostly cloudy. Patchy fog possible. A shower or two early. Low 52 to 57. Wind light and variable around 10 mph.
.Tuesday… Considerable cloudiness with scattered showers. Isolated thunderstorms also possible. High 68 to 73. Wind south to southeast at 10 to 15 mph.
.Tuesday Night… Scattered showers during the Evening. Isolated thunderstorms also possible. Partly to mostly cloudy. Low 50 to 55. Wind becoming northwest at 10 to 20 mph.
.Wednesday… Partly cloudy. High 68 to 73.
.Wednesday Night… Partly cloudy. Low 48 to 53.
.Thursday… Showers possible. Mostly cloudy. High 63 to 68.
.Thursday Night… Partly to mostly cloudy. Showers possible. Low 45 to 50.
.Friday… Partly cloudy. High 65 to 70.
Normal temperatures for Today
Sunrise Tuesday: 5:55 AM CDT
Sunset Tuesday: 8:33 PM CDT