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Showing posts from July, 2009

7/31/09: Friday's Weather Report

Issued at 3:58 PM CDT, Friday, July 31st, 2009

Weather History:

On this date in 2006... A record high temperature of 95 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Partly sunny to mostly cloudy skies were common across our area Today with an area of scattered showers and isolated thunderstorms affecting parts of Northeast Minnesota and Northwest Wisconsin This Afternoon thanks in part to some lingering cold air aloft with -14 degree C 500 mb temperatures. Brief heavy downpours have been the biggest threat from this activity Today. High temperatures were generally in the upper 60s and 70s Today with 300 PM 850 mb temperatures of +11 to +13 degrees C. Afternoon dewpoints were running in the 50s with PWS of 0.80"-1.00". Weather map This Afternoon featured an area of low pressure of 1006 mb centered over Southern Manitoba Province with a secondary low of 1006 mb centered over the Northeast South Dakota…

7/30/09: Thursday's Weather Report

Issued at 3:48 PM CDT, Thursday, July 30th, 2009

Weather History:

On this date in 1992... A record low temperature of 42 degrees occurred at Duluth, MN.

Note: 0.40" of rain here in West Duluth in about a 10 minute time period around 2 PM Today as a pretty strong thunderstorm moved through which was accompanied by a brief period of small hail and wind gusts around 30 mph.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

A pretty unsettled day as cold air aloft combined with minimal surface heating led to a fairly wet/stormy day across our area as numerous showers and thunderstorms developed and passed south-east through Northeast Minnesota and Northwest Wisconsin. Afternoon 500 mb temperatures down to -16 degrees C along with CAPES under 1000 j/kg with LI'S of zero to around -2 degrees C and Lapse Rates from 6.0-7.0 c/km was enough to kick off this convection Today with a few of the storms for brief periods of time even producing some smal…

7/29/09: Wednesday's Weather Report

Issued at 2:36 PM CDT, Wednesday, July 29th, 2009

Here are some departure from normal temperature stats across Minnesota for July 2009...Data provided by Paul Douglas and the St. Cloud Times.

International Falls MN: -7.3 degrees...Coolest July on record through the 28th...

Duluth MN: -3.1 degrees...Top ten coolest July's on record through the 28th...

St. Cloud MN: -3.3 degrees

Twin Cities MN: -2.9 degrees

Rochester MN: -4.5 degrees

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Partly sunny-mostly cloudy skies were found over our area Today with a few spotty showers at times affecting mainly Northern areas of Minnesota...however the shower coverage Today has been less compared to recent days. High temperatures Today were in the 60s to lower 70s with 2 PM 850 mb temperatures of +9 to +11 degrees C. Winds Today were generally from the west or north under 15 mph.

(Today's Upper Level Analysis)

As one upper level low heads into Northeastern C…

7/28/09: Tuesday's Weather Report

Issued at 4:00 PM CDT, Tuesday, July 28th, 2009

Weather History:

On this date in 2006... A record high temperature of 97 degrees occurred at Duluth, MN.

On this date in 1992... A record low temperature of 45 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin(Today's Weather)

Low pressure of 996 mb was centered over the Northeast half of Ontario Province This Afternoon with high pressure of 1022 mb centered over the Eastern half of Alberta Province. Cold temperatures aloft of -14 to -18 degrees C has shifted south into the area Today and this has helped in producing some spotty shower activity with even a rumble or two of thunder This Afternoon out in the Itasca...Cass...and Crow Wing county areas of Minnesota. Partly sunny to mostly cloudy skies covered our area Today with high temperatures in the 60s to lower 70s. 850 mb temperatures as of 3 PM ranged from +6 to +9 degrees C. Winds Today were out of the north or west at 10-20 mph …

7/27/09: Monday's Weather Report

Issued at 2:31 PM CDT, Monday, July 27th, 2009

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Low pressure of 1008 mb has shifted into Southern Minnesota This Afternoon...This low combined with some warm air advection north-east of the surface low helped to produce an area of thunderstorms and heavy rainfall late last night and early This Morning over portions of Eastcentral Minnesota into far Northwest Wisconsin... Duluth doppler radar rainfall estimates indicated that 1.25"-3.50" of rain fell over the counties of Southern Cass MN...the Southern half of Crow Wing MN...far Southern Aitkin MN...Central-Southern Pine MN...Southern half of Burnett WI...and Southern Washburn WI...The highest totals were found over Southwestern Aitkin county through Southern Crow Wing and Southern Cass Counties in Minnesota. Keep in mind that some of these totals could be a tad on the high side due to contamination factors. Another area of low pressure w…

7/27/09: Severe Thunderstorm Potential

Issued at 8:44 AM CDT, Monday, July 27th, 2009

...Isolated Severe Thunderstorms possible Today and This Evening...

Main risks from these storms:

Large hail and damaging winds along with heavy downpours and dangerous lightning strikes.

Discussion:

A northwesterly flow aloft coupled with a few disturbances dropping southeast through our area along with a surface cold front which will drop southeast through Northern Minnesota and Northwest Wisconsin Today and This Evening will result in the development of scattered showers and thunderstorms across all of our local area Today and This Evening...

Winds aloft will be quite strong Today with around 40 knots of northwest flow at 500 mb...This in conjunction with favorable amounts of vertical wind shear along with some surface heating and colder air aloft will make the atmosphere somewhat unstable Today with CAPES expected to climb toward 1000 j/kg and LI'S from -1 to -3 degrees C.

Counties affected include:

Koochiching MN...Itasca MN...Cass MN...…

7/26/09: Sunday's Weather Report

Issued at 4:16 PM CDT, Sunday, July 26th, 2009

Weather History:

On this date in 1991... A record low temperature of 40 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Partly-mostly sunny skies were found across our area Today with a few showers passing southeast through Northeastern Minnesota and Northwestern Wisconsin thanks to some weak instability and colder temperatures aloft. The shower coverage Today was much less compared to Saturday...however. Highs Today were generally in the 70s to lower 80s with dewpoints mainly in the 50s to around 60 degrees with Afternoon PWS generally around 1.00". 850 mb temperatures as of 3 PM were right around +13 degrees C. Winds Today were out of the north or west under 20 mph. Surface map late This Afternoon featured an area of low pressure of 1004 mb centered over Northeast Ontario Province with a 1012 mb low centered over the southeast half of North Dakota.

(Today'…

7/24/09: Friday's Weather Report

Issued at 8:14 PM CDT, Friday, July 24th, 2009

Weather History:

On this date in 2004...A record low temperature of 41 degrees occurred at Duluth, MN.

Local storm reports from Thursday, July 23rd, 2009...Data provided by the NWS Duluth, MN.

5 miles Southwest of Inger MN (Itasca County) 0.88" diameter hail at 1015 PM CDT. Hail fell on the northside side of Lake Winnibigoshish.

West Duluth rainfall total from late last night: 0.25"

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Another batch of rain with scattered thunderstorms affected much of Northcentral...Northeast...and Eastcentral Minnesota as well as Northwest Wisconsin late last night through early This Morning as a cold front moved through the area. The heaviest rainfall amounts per Duluth doppler radar fell in a few areas...One spot was near the Inger...Deer River...and Grand Rapids area where as much as 1.75" of rain fell late last night... A second area of heavier rain to…

7/23/09: Thursday's Weather Report

Issued at 4:05 PM CDT, Thursday, July 23rd, 2009

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Partly to mostly cloudy skies were found across our area Today with high temperatures in the 70s to lower 80s but cooler 50s and 60s were common closer to Lake Superior where widespread dense fog was found over Lake Superior extending southwest toward the Duluth Harbor at times. 850 mb temperatures as of 4 PM ranged from +12 to +16 degrees C. Dewpoints across the area were generally in the 50s with late Afternoon PWS of 0.80"-1.10"... It's been mainly dry across our area Today but an area of showers has been dropping south-east through Northern areas of Minnesota This Afternoon. Surface map as of 4 PM featured an area of low pressure of 1006 mb over Central Manitoba Province with a cold front attached to that low heading east out of Central North Dakota.

(Today's Upper Level Analysis)

Northwest H5 flow prevailed across the Upper Mi…

7/22/09: Wednesday's Weather Report

Issued at 8:06 PM CDT, Wednesday, July 22nd, 2009

West Duluth Rain totals:

0.30" of rain fell with a thunderstorm in West Duluth around 2 PM Today...

0.20" of rain fell with another storm around 6 PM Today...

0.50" of rain fell in West Duluth Today...

Note: We've had 4.30" of rain here in West Duluth over the last 8 days.

Weather History:

On this date in 1985... A record low temperature of 40 degrees occurred at Duluth, MN.

Here are the local storm reports from Northeast Minnesota and Northwest Wisconsin over the last two days. Data provided by the National Weather Service, Duluth, MN.

5 miles East of Grantsburg WI (Burnett County) 0.50" diameter hail at 650 PM CDT Tuesday.

4 miles West of Cotton MN (St. Louis County) 0.75" diameter hail at 415 PM CDT Wednesday.

15 miles East-Northeast of Siren WI (Burnett County) 0.50" at 400 PM CDT Wednesday...Also estimated wind gusts to 50 mph in Rusk Township along County Road H just South of Yellow River.

7 miles…

7/21/09: Tuesday's Weather Report

Issued at 5:35 PM CDT, Tuesday, July 21st, 2009

Note: 1.40" of rain fell in West Duluth, MN last night and This Morning...Rain started to fall late last Evening and didn't stop until around 10 AM Today...Had some embedded thunderstorms as well between 2-3 AM Today. 3.80" of rain has fallen here in West Duluth over the past week.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

A surface trough continued to push east out of Central Minnesota This Afternoon. The airmass along and ahead of this system was characterized by CAPES around 1000 j/kg along with LI'S of -1 to -4 degrees C and Lapse Rates from 6.0-7.5 c/km. Dewpoints were in the 50s to around 60s degrees with Afternoon PWS of 1.00"-1.20"... The widespread rain and embedded thunderstorms which affected all of Northeast Minnesota and far Northwest Wisconsin last night and This Morning shifted northeast of the area by This Afternoon which caused some clearing to …

7/20/09: Monday's Weather Report

Issued at 3:23 PM CDT, Monday, July 20th, 2009

Record Event:

International Falls Minnesota dropped all the way down to 37 degrees for a low temperature on Sunday Morning, July 19th, 2009...This established a new daily record low temperature for the 19th of July. The previous record was 43 degrees set in 1958.

Note: 5 new daily record low temperatures have occurred this month at International Falls, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

A cold front extended from Northwest Minnesota to Eastern South Dakota as of 3 PM with low pressure of 1002 mb centered over Central Manitoba Province. Partly to mostly cloudy skies were found across our area Today with showers and thunderstorms affecting Koochiching...Western Itasca...and Western Cass Counties in Minnesota. Highs Today were generally in the 70s to lower 80s with cooler 50s and 60s closer to Lake Superior. 3 PM 850 mb temperatures ranged from +11 to +15 degrees C across Northeast Mi…

7/19/09: Sunday's Weather Report

Issued at 4:23 PM CDT, Sunday, July 19th, 2009

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Well temperatures are slowly getting back to normal across our area as high pressure of 1020 mb begins to shift to our south-east This Afternoon. Winds across our area were generally variable in direction Today near this high under 15 mph. Highs were generally in the upper 60s to middle 70s with 4 PM 850 mb temperatures of +9 to +11 degrees C. Dewpoints This Afternoon were in the 40s and 50s with PWS around .70"... We saw more sun Today compared to the last several days with a CU field most numerous away from Lake Superior across Northwest Wisconsin and Northeast Minnesota.

(Today's Upper Level Analysis)

H5 trough/low (564 meters) continued to linger over the Central-Lower Great Lakes into Eastern Canada This Afternoon with a (594 meter) H5 ridge covering areas from Northern California to Northern Utah to Southeast Colorado to Western Texas. …

7/18/09: Saturday's Weather Report

Issued at 3:35 PM CDT, Saturday, July 18th, 2009

Weather History:

On this date in 1984... A record low temperature of 43 degrees occurred at Duluth, MN.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Low pressure of 1004 mb was centered over Central Quebec Province Canada as of mid-Afternoon with a high pressure ridge of 1022 mb drifting east out of the Central Dakotas. Mostly cloudy skies were found across our area once again Today with just a few breaks for sun occurring from time to time. Highs due to the widespread cloudiness were stuck in the 60s Today with some lingering 50s in the Arrowhead of Minnesota. 850 mb temperatures as of 3 PM ranged from +6 to +7 degrees C. Winds across the area were out of the north or northwest Today around 15 mph or less.

(Today's Upper Level Analysis)

A very amplified H5 flow continues across the U.S. Today...A 564 meter H5 low covered Eastern Canada with a north-northwest upper level flow in place behin…

7/17/09: Friday's Weather Report

Issued at 2:42 PM CDT, Friday, July 17th, 2009

Further information on the tornadoes that occurred late Tuesday Afternoon over Westcentral Minnesota...Data provided by the NWS in Chanhassen, MN...

*The first tornado touched down in the Swift Falls area of Minnesota and was rated an EF-2 with estimated winds of 110-119 mph. It had a 9 mile path length and a maximum width of 350 yards. The tornado touched down at 421 PM CDT and lifted at 437 PM CDT. Average movement was 34 mph.

*The second tornado touched down in the Spicer area of Minnesota and was rated an EF-1 with estimated winds of 100-109 mph. It had a 6 and one half mile path length and a maximum width of 250 yards. It touched down at 441 PM CDT and lifted at 453 PM CDT. Average movement was 33 mph.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Low pressure of 1004 mb has moved into Eastern Canada This Afternoon with a 1024 mb high pressure ridge centered over the Western Dakotas. North…

7/16/09: Thursday's Weather Report

Issued at 3:29 PM CDT, Thursday, July 16th, 2009

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

(Today's Weather)

Unseasonably cold day across our area as strong low pressure of 1002 mb moves into Central Ontario Province with a 1022 mb high pressure ridge centered over the Western High Plains. Cold advection and gusty northwesterly winds along with widespread cloudiness affected our area Today on the southwest side of this storm. Highs Today were only in the 50s and 60s with 3 PM 850 mb temperatures of just +3 to +6 degrees C across Northeast Minnesota and Northwest Wisconsin. Winds Today were out of the west or northwest at 10-20 mph with gusts to 30 mph. There's been some areas of drizzle and light rain pushing south-southeast through Northern-Northeast Minnesota Today while dry conditions prevailed elsewhere.

(Today's Upper Level Analysis)

30-60 meter H5 height falls continued to affect the Great Lakes region Today per RUC model analysis as an unusu…

7/15/09: Wednesday's Weather Report

Issued at 4:21 PM CDT, Wednesday, July 15th, 2009

Weather History:

On this date in 2006... A record high temperature of 96 degrees occurred at Duluth, MN.

Note: 2.40" of rain fell in West Duluth on Tuesday, July 14th, 2009.

Here are the local storm reports from Northeast Minnesota and Northwest Wisconsin from Wednesday, July 14th, 2009. Data provided by the National Weather Service, Duluth, MN.

425 PM CDT Tuesday: 0.75" diameter hail 5 miles North of Pillager MN (Cass County) Some small brances down as well.

435 PM CDT Tuesday: 1.75" diameter hail 3 miles East of Pillager MN (Cass County)

435 PM CDT Tuesday: 0.88" diameter hail at North Gull Lake MN (Cass County)

440 PM CDT Tuesday: 0.88" diameter hail at Brainerd MN (Crow Wing County)

456 PM CDT Tuesday: 60 mph Thunderstorm Wind Gust at Brainerd MN (Crow Wing County) Measured at the Brainerd Airport.

515 PM CDT Tuesday: Heavy rain. 5.00" of rain 1 mile East of Merrifield MN (Crow Wing County)

515 PM CDT …

7/14/09: Storm chase trip/no weather blog Tonight

First off...no weather blog Tonight...

Had a very successful chase trip Tonight considering how down the storm season has been thus far around this area.

...Shawn (my older brother)...Sam (my brother's soon to be wife)...and myself decided to head south a bit since some nice looking storms had been brewing over in Crow Wing and Aitkin Counties during the Afternoon hours.

Left West Duluth around 5:30 PM with our first destination being Moose Lake Minnesota...Lots of fog and low clouds as we left Duluth down thru the Esko area with the fog burning off right around Midway Road on I35...But still plenty of low level clouds in the sky, which wasn't too surprising since the atmosphere under went a huge change during the past 24 hours.

We reached Moose Lake with severe warned cells to our west and a little west-northwest around 6:30 PM or so...Other severe storms were centered south of the Lake Mille Lacs area...So it was decision time. After about 20 mins. or so of waiting in Moose La…

7/13/09: Monday's Weather Report

Issued at 2:42 PM CDT, Monday, July 13th, 2009

Weather History:

On this date in 1990... A record low temperature of 39 degrees occurred at Duluth, Minnesota.

Weather highlights:

...Record cold up north...

...Drought conditions may worsen during the next 6-10 days...

Weather Notes:

International Falls Minnesota broke a record low temperature on Sunday, July 12th, 2009. Low temperature reached 35 degrees on the 12th which broke the previous record low temperature of 40 degrees which was set in 1975.

July 2009 has only had a barely measurable 0.01" of rain at the Duluth Airport...The driest July on record at the Duluth Airport occurred just a few years ago in 2005 when 0.82" of rain fell during the entire month. The all time driest July on record occurred in 1875 with just 0.45" of rain at Duluth.

The last time the Duluth Airport measured one quarter inch or more of rain was back on June 18th when .31" of precipitation fell... The last time the Duluth Airport measured one …