/Issued 4:38 PM CDT, Sunday, July 27, 2014/
Northland tornado tracks centered on St. Louis County Minnesota from 1950-2013 via NWS Storm Prediction Center, and Midwest Regional Climate Center.
Blue lines=F/EF0 tornado tracks
Green lines=F/EF1 tornado tracks
Yellow lines=F/EF2 tornado tracks
Orange lines=F/EF3 tornado tracks
Red lines=F/EF4 tornado tracks
Tornadoes can happen around here, just not as often as what you would expect to see in traditional tornado alley – Central Plains.
The basic weather pattern through the next 5 days or so will consist of a strong upper trough (cold temps aloft) and a NNW flow from Central Canada through the Upper Midwest, Great Lakes, and Ohio Valley. The coolest temperatures will be found east/northeast/southeast of the Upper Midwest. 500mb map for Wednesday, July 30, 2014. Source, Weather Prediction Center.
500mb map valid for Sunday, August 3, 2014. Pretty similar pattern to the image above, coolest air remains north/east/southeast of the Upper Midwest. Source, Weather Prediction Center.
Note: The high temperature at the Duluth Airport failed to reach 70 degrees Today, July 27th. This is the 1st time since July 14th that the high temperature didn’t reach 70 degrees (About 2 weeks ago) And this is also just the 3rd time this month with a high temperature cooler than 70F.
Temperature and precipitation report for Duluth, MN (Airport location)
July 20-26, 2014
High temperatures:
7/20: 85F/8 degrees above normal
7/21: 88F/11 degrees above normal
7/22: 79F/2 degrees above normal
7/23: 76F/1 degree below normal
7/24: 78F/1 degree above normal
7/25: 70F/7 degrees below normal
7/26: 85F/8 degrees above normal
Low temperatures:
7/20: 64F/8 degrees above normal
7/21: 72F/16 degrees above normal
7/22: 60F/4 degrees above normal
7/23: 56F/Normal
7/24: 54F/2 degrees below normal
7/25: 61F/5 degrees above normal
7/26: 61F/5 degrees above normal
Total precipitation: 0.31″
Normal: 0.77″
Departure: -0.46″
Last week’s temperature departure map. Source, Midwest Regional Climate Center.
Last week’s precipitation departure map. Source, Midwest Regional Climate Center.
Weather Summary for July 27, 2014
Location: NE Minnesota and NW Wisconsin
Low pressure of 1002mb was located to our south/east Today with a strong area of high pressure averaging 1026mb over Saskatchewan. A much cooler airmass has settled into the area Today with plenty of clouds and showers to boot. There has been some drizzle and fog at times near Lake Superior. Highs Today were in the 50s and 60s with some locales getting into the low 70s, mainly over the Brainerd Lakes and also along the Ontario-Minnesota border where clearing was taking place This Afternoon. Winds Today were out of the north, northwest, or east at 10 to 25 mph.
Storm reports map for July 26, 2014. Source, Storm Prediction Center.
Green dots=Large hail reports
Blue dots=Damaging wind reports
Playing around with GR2 analyst radar for the next week or two, this is an image of the tornado warned storm from Saturday Evening near the Rice Lake and Cumberland areas in Northwest Wisconsin. Cloud tops poking up to around 40,000 feet!
Forecast Discussion for NE Minnesota and NW Wisconsin
Short Term Forecast – Confidence: High.
Tonight (July 27)
Showers will diminish This Evening, skies will vary from partly to mostly cloudy. Lows will be in the 40s and 50s with winds out of the north, northwest, or east at 5 to 15 mph.
Monday and Monday Night (July 28)
Partly to mostly cloudy skies are expected with spotty mainly Afternoon-Evening showers. Highs will get back into the 70s for most locations with lows Monday Night mainly in the 50s. North or west winds are forecast at 10 to 15 mph.
Extended Forecast – Confidence: High.
Tuesday through Thursday (July 29-31)
Spotty Afternoon-Evening showers and thunderstorms will be possible through this period as cold temperatures aloft and warmer air near the surface help to make the atmosphere a little unstable, that combined with a NNW mid/upper level flow and possible weak disturbances dropping south out of Central Canada could lead to isolated rain/convection from Tuesday through Thursday.
High temperatures will mainly be in the 70s during this period with lows Tuesday Night and Wednesday Night in the 50s.
Long Range Forecast – Confidence: High.
(August 1-6)
Near normal temperatures are expected as we kick off the month of August. Can’t rule out a spotty shower or thunderstorm on the 1st, and then again around the 3rd.
5 DAY FORECAST FOR DULUTH AND SUPERIOR
.Tonight… Mostly cloudy with some drizzle and fog giving way to some clearing during the night. Low 48 to 53. Wind north around 12 mph.
.Monday… Partly sunny. High 72 to 77. Wind northwest at 10 to 15 mph.
.Monday Night… Isolated showers early. Partly to mostly cloudy. Low 50 to 55. Wind west around 12 mph.
.Tuesday… Partly sunny. High 73 to 78.
.Tuesday Night… Partly to mostly cloudy. Isolated showers early. Low 50 to 55.
.Wednesday… Partly sunny. Isolated showers or thunderstorms possible during the Afternoon. High 73 to 78.
.Wednesday Night… Isolated showers or thunderstorms possible early. Partly to mostly cloudy. Low 50 to 55.
.Thursday… Partly sunny. High 73 to 78.
Normal temperatures for Today
High: 77
Low: 56
Sunrise Monday: 5:44 AM CDT
Sunset Monday: 8:46 PM CDT
Tim
Leave a Reply