Issued at 4:11 PM CDT, Friday, May 22nd, 2009
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
(Today’s Weather)
High pressure of 1024 mb which brought a shot of cool-crisp temperatures to the area early Today has shifted into the Eastern Great Lakes This Afternoon while a weak area of low pressure of 1018 mb moves into Southeastern Manitoba Province. A cold front attached to this low was beginning to move into Northwest Minnesota as of mid-Afternoon. We saw partly to mostly sunny skies across the area Today with a couple of showers passing through far Northern areas of Minnesota. Highs Today were in the 60s and 70s with cooler 40s and 50s near Lake Superior. 3 PM 850 mb temperatures ranged from +5 to +9 degrees C across Northeast Minnesota and Northwest Wisconsin. Winds Today were out of the south, southwest, or east around 20 mph or less.
(Today’s Upper Level Analysis)
Westerly flow aloft was in place across the Upper Midwest Today while a shortwave trough digs south-east through Manitoba Province. A large area of mid-high level moisture continued Today per water vapor satellite imagery from the Southwest U.S. through the Central Rockies through the Central Plains and southern parts of the Upper Midwest.
(Tonight)
A cold front will continue to settle south-east through Northeast Minnesota and Northwest Wisconsin while a seperate frontal boundary remains nearly stationary across Northern Iowa. Deeper moisture will remain tied up with that southern boundary Tonight with lesser moisture hooking up with the cold front passing through our local area. A few showers or isolated thunderstorms will continue This Evening mainly over Northern Minnesota. Then a few showers could push into parts of Northwest Wisconsin later Tonight. Otherwise it looks mainly dry across the area Tonight with partly-mostly cloudy skies. Lows will be in the 30s and 40s with south, southwest, or east winds turning north or northwest at 10-20 mph.
(Saturday and Saturday Night)
An area of high pressure will build into the Upper Midwest during this period which will result in partly cloudy-mostly sunny skies on Saturday and mostly clear skies Saturday Night. Highs Tomorrow will be in the 50s and 60s with lows Tomorrow Night in the 30s and 40s. Winds will be out of the north, northwest, or east around 20 mph or less.
(Extended Forecast)
High pressure will remain in control of our weather for Sunday and Sunday Night as it starts to pull east away from our area. Highs on Sunday will be in the 60s and 70s with 40s and 50s near Lake Superior. Lows Sunday Night will be in the 40s and 50s. Still appears that our next shot for some rain will come early next week as low pressure approaches from the west. Where the heaviest rain band sets up remains uncertain this far out. Also remains uncertain if will see any thunderstorm activity develop around our area early next week with the NAVY-NOGAPS continuing to be more aggresive with the threat for storms around our area compared to most of the other models Today. High temperatures on Monday will be in the 50s and 60s with cooler temps near Lake Superior. Lows Monday Night will be in the 40s and 50s.
5 Day Forecast for Duluth/Superior
.Tonight… Partly cloudy. Low 40 to 45. Wind southeast at 10 to 20 mph becoming southwest This Evening…then becoming northwest to north late.
.Saturday… Mostly sunny. High 62 to 67 but it could be cooler near Lake Superior. Wind north to northeast at 10 to 20 mph.
.Saturday Night… Mostly clear. Low 40 to 45. Wind east at 5 to 15 mph.
.Sunday… Partly to mostly sunny. High 60 to 65 but cooler near Lake Superior.
.Sunday Night… Mostly cloudy. Low 42 to 47.
.Memorial Day… Showers possible. Mostly cloudy. High 57 to 62 but cooler near Lake Superior. Chance of rain 20%.
.Monday Night… Showers possible. Mostly cloudy. Low 45 to 50. Chance of rain 20%.
.Tuesday… Showers possible. Mostly cloudy. High 55 to 60 but cooler near Lake Superior. Chance of rain 20%.
Normal High Temperature Today 66 degrees
Normal Low Temperature Today 42 degrees
Tim
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