Saturday, June 26, 2010

6/26/10: Saturday's Weather Report

Issued at 7:39 PM CDT, Saturday, June 26th, 2010

Note: Preliminary tornado count from Southern Minnesota on Friday, June 25th, 2010: 7, per SPC storm report page.

Note: Updated tornado count from Thursday, June 17th, 2010 per NWS Chanhassen, MN: 20 tornadoes have now been confirmed from June 17th's severe weather outbreak that struck portions of Minnesota. This number could rise a little more in coming days.

Here are some rainfall totals from Northern Minnesota and Northwest Wisconsin from Friday, June 25th, 2010. Source NWS Duluth, MN:

Duluth MN: 0.18"

International Falls MN: 0.16"

Brainerd MN: 1.11"

Grand Marais MN: 0.38"

Hibbing MN: 0.21"

Ashland WI: 0.22"

Northome MN: 0.22"

2 miles South of Tower MN: 0.20"

Embarrass MN: 0.27"

Bruno MN: 0.31"

Floodwood MN: 0.31"

Solon Springs WI: 0.19"

Butternut WI: 0.30"

Upson WI: 0.23"

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

Today's Weather:

Partly sunny-mostly cloudy skies prevailed across our area Today with areas of haze and fog...The fog was most common near Lake Superior. Highs Today ranged from the 50s and 60s near Lake Superior with 70s to around 80 degrees elsewhere. Dewpoints Today ranged from the 40s in Northeast Minnesota to the muggier 60s in Western-Southern areas. PWS early This Evening ranged from 0.70"-0.90" in Northeast Minnesota to 1.00"-1.40" elsewhere. Winds Today were out of the south or east generally under 15 mph. Surface map early This Evening featured a stationary front over Northern Iowa with another stationary front across Central Minnesota to Central Wisconsin. A cold front was located over the Eastern Dakotas. Low pressure of 1004 mb was centered in Southern Manitoba Province with a 1002 mb low centered in extreme Southeast South Dakota. High pressure of 1010 mb was centered over Central Lake Superior.

Today's 500 mb analysis:

Southwest flow aloft was in place across the Upper Midwest per water vapor satellite imagery. Upper level low (564 meters) was tracking east-southeast through Southwest Saskatchewan Province early This Evening with an upper level trough shifting out of the Northern Rockies and into the Northern Plains.

Tonight:

The low in Southeast South Dakota late Today will head E/NE Tonight while the low over Southern Manitoba Province remains off to our northwest. A warm front with the South Dakota low will shift east-northeast Tonight, but will remain south of our local area. A cold front associated with the Manitoba low will push east during the night and will reach Northcentral Minnesota Overnight. Scattered showers or thunderstorms will be possible throughout Northern Minnesota and Northwest Wisconsin Tonight, although the greatest risk for heavy rain and severe weather should remain to our south near the deeper instability and moisture. There's still a threat for some locally heavy downpours, however, mainly in Northwest Wisconsin Tonight and possibly into Eastcentral Minnesota. Mostly cloudy skies with areas of haze and fog will be common across our area Tonight with lows in the 50s and 60s. Winds will be out of the south or east under 15 mph.

Sunday and Sunday Night:

Low pressure will be centered to our north and east during this period. A cold front is expected to move through Eastern Minnesota and Northwest Wisconsin on Sunday which will then be followed by an upper level trough which will approach from the northwest. Partly-mostly cloudy skies are forecast on Sunday with a few showers or thunderstorms possible, although severe weather is not expected. Clear-partly cloudy skies will occur Sunday Night with any showers confined to the early Evening hours. Highs Tomorrow will be mainly in the 70s with lows Tomorrow Night in the 40s and 50s. Winds will shift to the west and northwest at 10-25 mph during this period.

Extended Forecast:

A quiet weather pattern will develop from Monday through Wednesday as an upper level low sets up shop to our northeast while strong high pressure builds south out of Western Hudson Bay Canada. An amplified northerly flow will become estabilished across the Upper Midwest for the early to mid part of next week which will result in cool temperatures, but dry conditions. Highs for Monday and Tuesday will be in the 60s and 70s with lows Monday Night and Tuesday Night in the 40s and 50s, it's not even out of the question that some of the typical cold spots drop into the 30s early next week.

5 Day Forecast for Duluth/Superior

.Tonight... Mostly cloudy. Areas of haze and fog. Scattered showers developing, mainly late. Low 50 to 55. Wind east at 10 to 15 mph. Chance of rain 40%.

.Sunday... Mostly cloudy. Scattered showers early along with areas of haze and fog. Some partial Afternoon clearing with showers or thunderstorms possible. Warmer. High 73 to 78. Wind becoming west to northwest at 10 to 20 mph. Chance of rain 30%.

.Sunday Night... Partly cloudy. Showers possible early. Low 50 to 55. Wind northwest at 10 to 20 mph. Chance of rain 20%.

.Monday... Mostly sunny. High 65 to 70.

.Monday Night... Mostly clear. Low 45 to 50.

.Tuesday... Mostly sunny. High 63 to 68.

.Tuesday Night... Mostly clear. Low 45 to 50.

.Wednesday... Mostly sunny. High 68 to 73.

Normal High Temperature Tomorrow 74 degrees

Normal Low Temperature Tomorrow 51 degrees

Tim