/Issued 4:06 PM CDT, Wednesday, September 11, 2013/
*Future radar valid for 02z/9PM Tonight. The current area of showers/thunderstorms in far Northern Minnesota is expected to move SE during the next couple of hours, if this activity holds together, then it may affect the Twin Ports between 7-10 PM Tonight. (Source, 18z 4km NAM)
Source: National Weather Service Duluth, Minnesota
Parts of Northeastern Minnesota.
Thursday Evening through Friday Morning.
Counties included in the freeze watch:
Central and Northern St. Louis MN
Northern Lake MN
Northern Cook MN
Some cities included in the freeze watch:
International Falls…Littlefork…Hibbing…Ely…Cotton…Crane Lake…Orr…and Isabella.
Low temperatures between 28 and 32 degrees Thursday Night for the Iron Range, Arrowhead, and far Northern areas of Minnesota. The sub-freezing temperatures could kill crops and other sensitive vegetation that are not given adequate protection from the cold.
A freeze watch means sub-freezing temperatures are possible.
*Areas in blue are under a freeze watch for Thursday Night. (Source, NWS Duluth, MN)
Today’s Weather Summary for Northeast Minnesota and Northwest Wisconsin
Two cold fronts over the region Today. Front number was extended from Central Upper Michigan to Southwest Wisconsin. The 2nd cold front was over Northwestern Minnesota late This Afternoon. A mild day across the Northland with high temperatures generally in the 70s to lower 80s. Partly to mostly cloudy skies were common as well. A few showers and thunderstorms have been affecting far Northern Minnesota and the Arrowhead with dry weather elsewhere. Winds Today were out of the north, west, or southwest at 10 to around 20 mph.
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
Short Term Forecast – Confidence: High.
Tonight (September 11)
A few showers and thunderstorms should continue to affect parts of the Northland before Midnight thanks to a cold front and pretty strong upper trough which is moving into the area. The amount of instability and shear isn’t the greatest, but there is enough of both to produce spotty Evening storms so stay weather aware. Partly to mostly cloudy skies are forecast Tonight with lows in the 40s and 50s. Winds will be from the north or west at 10 to 20 mph.
Thursday and Thursday Night (September 12)
High pressure builds into the Upper Midwest this period and a cooler airmass will follow with 850mb temperatures of around 0 to +6C. Highs on Thursday will be in the 50s and 60s with lows in the 30s and 40s with some 20s possible in far Northern Minnesota. Areas of frost are expected late Tomorrow Night over much of the Northland – away from Lake Superior. Partly sunny to partly cloudy skies are on tap Tomorrow with clear to partly cloudy skies Tomorrow Night. Winds will be out of the north at 10 to around 20 mph.
Extended Forecast – Confidence: High.
Friday through Sunday (September 13-15)
This period looks generally dry for the most part, but a few showers can’t be ruled out Saturday Evening-early Sunday as a cold front passes through the area. High temperatures will mainly be in the 60s Friday with 60s and 70s on Saturday, cooling to the 50s and 60s on Sunday. Lows Friday Night will be in the 30s and 40s. Lows Saturday Night will be in the 40s and 50s.
Long Range Forecast – Confidence: High.
Near to above average temperatures are expected through this period. The weather pattern might get a little more active next week as an upper level trough sets up over the Western U.S. which in turn causes a ridge to develop over the Southern/Eastern U.S., in between a SW flow develops and this may increase the chance for a couple of rain events over the Upper Midwest between the 17th-21st. Stay tuned!
*A ways out there yet but the 12z EUROPEAN model from Today has quite the trough out West late next week with warm air east of the trough and cooler air west of the Rockies. This type of pattern often leads to periods of stormy weather so this will be something to keep an eye on in coming days to see if the trends hold up or not. Note: This map is valid for next Saturday, September 21, 2013.
5 DAY FORECAST FOR DULUTH/SUPERIOR
.Tonight… A few showers or isolated thunderstorms possible between 7-10 PM. Partly to mostly cloudy. Low 50 to 55. Wind north to northwest at 5 to 15 mph.
.Thursday… Partly to mostly cloudy. High 62 to 67. Wind north to northwest at 10 to 20 mph.
.Thursday Night… Partly cloudy. Patchy frost away from Lake Superior? Low 38 to 43, warmer closer to Lake Superior. Wind north at 5 to 15 mph.
.Friday… Mostly sunny. High 60 to 65.
.Friday Night… Partly cloudy. Low 40 to 45.
.Saturday… Partly sunny. High 67 to 72.
.Saturday Night… Mostly cloudy. Low 50 to 55.
.Sunday… Partly sunny. High 60 to 65.
Normal temperatures for Today
Sunrise Thursday: 6:43 AM CDT
Sunset Thursday: 7:26 PM CDT