/Issued 6:09 PM CDT, Tuesday, August 28, 2018/
Source for rainfall totals https://www.dnr.state.mn.us
Goes-16 one minute meso-scale Infrared Satellite loop from Tuesday, August 28, 2018
Loop time: 4:15 PM to 5:32 PM.
Stunning satellite loop showing the powerful clusters of torrential downpours and strong to severe thunderstorms this afternoon from Iowa to Wisconsin to Michigan.
Widespread heavy rain and strong to severe thunderstorms continue to affect parts of southeast Minnesota, and southern, central and eastern Wisconsin this afternoon, radar loop through 4:35 PM Tuesday, August 28, 2018.
Weather Prediction Center doesn’t issued high risks for flash flooding very often, but they have issued one for the rest of today into tonight for parts of southern Wisconsin — Potentially dangerous and life threatening flooding through tonight!
Temperatures were running 10 to around 20 degrees colder this afternoon compared to Monday afternoon in northeast Minnesota and northwest Wisconsin.
Temperature Departure map for the Midwest for the week of August 19, 2018.
Precipitation Departure map for the Midwest for the week of August 19, 2018.
Temperature and Precipitation report for Duluth, Minnesota
August 19 through 25, 2018
High Temperatures/Departure from Normal
8/19: 81 F/+7 degrees above normal
8/20: 71 F/-3 degrees below normal
8/21: 74 F/Normal
8/22: 80 F/+7 degrees above normal
8/23: 79 F/+6 degrees above normal
8/24: 68 F/-5 degrees below normal
8/25: 75 F/+2 degrees above normal
Low Temperatures/Departure from Normal
8/19: 60 F/+6 degrees above normal
8/20: 61 F/+7 degrees above normal
8/21: 55 F/+1 degree above normal
8/22: 50 F/-4 degrees below normal
8/23: 54 F/Normal
8/24: 63 F/+10 degrees above normal
8/25: 60 F/+7 degrees above normal
Note: Average Temperature for the week of August 19: 66.5 degrees (+2.9 degrees above normal) Source: https://www.dnr.state.mn.us
Total Precipitation: 0.53 inches
Departure: -0.33 inches below normal
State Average for Minnesota for the week of August 19, 2018
Temperature: 66.5 degrees
Departure: -0.5 degrees below normal
Precipitation: 1.09 inches
Departure: +0.29 inches above normal
A true taste of fall weather across the Northland today with widespread clouds, mist/drizzle and patchy fog. Highs today were mainly in the 50s, although Brainerd and Hayward had to be show-offs with both locations in the lower 60s late this afternoon.
A strong baroclinic zone (Temperature gradient) was in place this afternoon with 850mb temps ranging from +4C in northern Minnesota to +20C in far southern Wisconsin — Cold front separating the cool to warm air stretched from eastern Ontario Province to southern Wisconsin to central Kansas.
Mostly cloudy skies with patchy drizzle lingering in the Northland with some clearing expected during the night. Lows will be in the 40s, slightly warmer near Lake Superior while some locations in northern Minnesota dip into the 30s if skies clear out soon enough, and there could even be a little patchy frost in a few spots up north Wednesday morning if skies clear early enough.
Looks like will have somewhat nicer weather for Wednesday compared to Tuesday’s weather. Partly to mostly sunny skies are expected with highs in the 60s to around 70 degrees.
Our next system will begin to affect us starting Thursday as southerly winds develop ahead of low pressure to our west. A warm/moist advection pattern will begin, and this combined with an increase in elevated instability will probably be enough to kick off a few showers and thunderstorms in parts of the Northland especially Thursday night the way it looks now. Highs Thursday will mainly be in the 70s, cooler along the North Shore of Lake Superior.
…Looking ahead to Friday…
A complex weather system consisting of a warm front, cold front and trough will be moving through the upper Midwest. Looks like will get some rain and thunderstorms in the Northland, but how much rain is uncertain as the computer models disagree a bit with the 12z Euro much wetter while the 12z and 18z NAM keeps the heavier rainfall much farther to the south with only scattered showers in the Northland.
Duluth, Minnesota Climate Normals for August 29
Sunrise Wednesday: 6:25 AM CDT
Sunset Wednesday: 7:54 PM CDT