Friday, June 25, 2010

6/25/10: Friday's Weather Report

Issued at 4:01 PM CDT, Friday, June 25th, 2010

Weather tidbits for Duluth, Minnesota:

*Monthly precipitation total (thru the 24th) 5.01"
Departure: 1.10" Above Normal.

*Precipitation total since May 1st, 2010 (ending on the 24th of June): 10.96"!
*Rainfall total from May 23rd thru June 24th, 2010: 9.00"!

*Thursday, June 24th, 2010 marked the 8th day this month that has had at least 0.25" of rain and the second day this month with 1.00" or more of rain.

...Scattered severe thunderstorms erupted Thursday Afternoon and Thursday Evening across portions of Northcentral and Northeast Minnesota and Northwest Wisconsin. Here are the local storm reports from Thursday, June 24th, 2010 per NWS Duluth, MN.

*3:55 PM CDT 6/24/10: 2 miles South of Calumet MN (Itasca County) 1.00" diameter hail which covered the ground.

*3:58 PM CDT 6/24/10: 2 miles North of Goodland MN (Itasca County) Funnel Cloud. Reported on Highway 65 and County Road 12.

*4:22 PM CDT 6/24/10: 4 miles East of Goodland MN (Saint Louis County) 1.00" diameter hail. Hail and heavy rain reported on Highway 20 just inside Saint Louis County.

*4:56 PM CDT 6/24/10: 2 miles Southwest of Cook MN (Saint Louis County) Funnel Cloud.

*5:00 PM CDT 6/24/10: 3 miles southwest of Cook MN (Saint Louis County) 1.75" diameter hail.

*5:15 PM CDT 6/24/10: Babbitt MN (Saint Louis County) Heavy rain. 1.10" rainfall total in 30 minutes time along with pea size hail.

*5:20 PM CDT 6/24/10: 5 miles South of Pengilly MN (Itasca County) 0.50" diameter hail, accumulated 2.00" deep.

*5:40 PM CDT 6/24/10: Gheen MN (Saint Louis County) Thunderstorm Wind Damage. A healthy 3 foot diameter tree downed by strong winds.

*5:43 PM CDT 6/24/10: 1 mile East of Saginaw MN (Saint Louis County) Thunderstorm Wind Damage. Several trees down in the Little Grand Lake area.

*5:45 PM CDT 6/24/10: 2 miles Southwest of Proctor MN (Saint Louis County) Thunderstorm Wind Damage. A 14 foot aluminum boat on-shore was blown 50 feet and hit a tree. Power was out. Several 6-8" diameter trees down on the East side of Little Grand Lake.

*5:57 PM CDT 6/24/10: 1 mile East of Little Grand Lake MN (Saint Louis County) Thunderstorm Wind Damage. Several 4" diameter brances down.

*6:07 PM CDT 6/24/10: Hermantown MN (Saint Louis County) 0.75" diameter hail.

*6:10 PM CDT 6/24/10: Adolph MN (Saint Louis County) 1.00" diameter hail. Strong winds, small branches flying by.

*6:12 PM CDT 6/24/10: 15 miles North of Grand Rapids MN (Itasca County) Heavy rain. 2.00" of rain fell.

*6:14 PM CDT 6/24/10: Adolph MN (Saint Louis County) Thunderstorm Wind Damage. 2 uprooted trees, 10" in diameter. 12-14 trees snapped in half, 6-8" in diameter. Reported at the Intersection of Morris Thomas and Highway 2. Pea size hail also reported.

*6:16 PM CDT 6/24/10: Proctor MN (Saint Louis County) Thunderstorm Wind Damage. An aluminum flag pole snapped in half by the wind. Pea size hail also reported.

*6:34 PM CDT 6/24/10: Superior WI (Douglas County) 0.75" diameter hail. Hail lasted for 5 minutes.

*7:00 PM CDT 6/24/10: Superior WI (Douglas County) Heavy rain. 1.13" of rain fell in 20 minutes. A small creek behind Wessman Arena was over it's banks.

*7:30 PM CDT 6/24/10: 1 mile South of Lake Nebagamon WI (Douglas County) Thunderstorm Wind Damage. Trees down on a quarter mile stretch on Highway B and in South Lake Nebagamon. Few trees over 12" in diameter snapped off too.

*7:35 PM CDT 6/24/10: Wentworth WI (Douglas County) Heavy rain. 0.90" of rain fell in 20 minutes.

*7:54 PM CDT 6/24/10: Lake Nebagamon WI (Douglas County) Thunderstorm Wind Damage. A 6" diameter tree down along with several small trees down.

*8:25 PM CDT 6/24/10: 3 miles South of Superior WI (Douglas County) Thunderstorm Wind Damage. County Road A near the Nemadji Golf Course, a half dozen 6" diameter trees down.

*8:28 PM CDT 6/24/10: Proctor MN (Saint Louis County) Heavy rain. 0.75" of rain fell in 20 minutes.

*8:56 PM CDT 6/24/10: 3 miles South of Brule WI (Douglas County) Thunderstorm Wind Damage. A 6-7 foot diameter tree snapped off on State Highway 27.

*9:27 CDT 6/24/10: West Duluth MN (Saint Louis County) Heavy rain. 2.25" storm total. 1.50" fell in 20 minutes with the first storm. A second storm dropped 0.75" of rain. Street flooding reported along Grand Ave. and 8th street.

Here are some rainfall totals around Northern Minnesota and Northwest Wisconsin from Wednesday, June 23rd, 2010. Source: NWS Duluth, MN.

Duluth MN: 0.16"

Ashland WI: 0.65"

Hayward WI: 0.12"

Bruno MN: 0.16"

3 miles West of Floodwood MN: 0.26"

3 miles South of Ashland WI: 0.82"

Butternut WI: 1.29"

4 miles West of Clam Lake WI: 0.70"

Madeline Island WI: 0.79"

Sarona WI: 0.32"

Solon Springs WI: 0.25"

Upson WI: 0.43"

5 miles Northwest of Washburn WI: 0.20"

9 miles Northwest of Webster WI: 0.24"

Rainfall totals across Northern Minnesota and Northwest Wisconsin from Thursday, June 24th 2010. Source: NWS Duluth MN.

Duluth MN: 1.10"

International Falls MN: 0.13"

Hibbing MN: 0.32"

Ashland WI: 0.78"

Cass Lake MN: 1.07"

Cook MN: 0.42"

Northome MN: 0.67"

2 miles South of Tower MN: 0.40"

Embarrass MN: 0.44"

Littlefork MN: 0.70"

4 miles East of Island Lake MN: 0.66"

Dixon Lake MN: 0.91"

Floodwood MN: 1.14"

3 miles East of Orr MN: 0.42"

5 miles Northwest of Washburn WI: 0.34"

Upson WI: 0.85"

Gurney WI: 0.85"

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

Today's Weather:

It's a pretty complicated surface map Today with several different boundaries in place. One such surface front was draped over Northcentral Minnesota and far Northern Wisconsin late Today, instability has increased This Afternoon near this front, but nothing more then a few light showers or sprinkles have been forming over Northern-Northeast Minnesota This Afternoon. There have been a few heavier showers and isolated thunderstorms that have tracked east-southeast through parts of Northwestern Wisconsin This Afternoon, but none of those storms have been severe. A seperate boundary was centered in Southern Minnesota late Today, and this boundary has even more instability and moisture to work with then the one up north...Scattered supercells have erupted late This Afternoon between Saint Cloud and Elk River back toward the Willmar and Granite Falls area in Central Minnesota, or generally along and southwest of Interstate 94. Low pressure of 1008 mb was centered in Eastern South Dakota with another 1008 mb low centered in Southern North Dakota. Mostly cloudy-partly sunny skies covered our local area Today with high temperatures in the 60s and 70s while middle to upper 80s covered parts of Southwest-Southern Minnesota Today. Dewpoints across our local area were in the 50s and 60s Today with late day PWS of 1.00"-1.60" with 850 mb td's of +10/+14 degrees C!

Today's 500 mb analysis:

A corridor of fast winds aloft ( 60 knots) covered portions of the Northern Rockies, Northern Plains, and Upper Midwest Today in a near zonal (west to east flow) per RUC model analysis. An upper level trough covered the Western U.S. while a broad hot ridge of upper level high pressure covered the Central-Southern Plains.

Tonight:

Note: *Flash Flood Watch* is in effect through Saturday Afternoon for the following Counties: In Minnesota: Pine. In Wisconsin: Douglas...Burnett...Bayfield...Washburn...Sawyer...Ashland...Iron...And Price...

Scattered showers and thunderstorms will be possible across Northern Minnesota and Northwest Wisconsin before Midnight. Due to the abundant moisture in place, a few of these storms could contain very heavy downpours which may lead to some localized flooding. The severe threat has diminished, but still can't be ruled out...Mainly in Northwestern Wisconsin, including the Counties of Burnett, Washburn, Sawyer, and Price. Large hail to 1.00" in diameter and wind gusts approaching 60 mph are the main threats if severe weather develops This Evening. The Overnight hours look dry at this time for most areas, but a few lingering showers or thunderstorms are possible in Northwestern Wisconsin. Lows Tonight will be in the 50s and 60s with partly-mostly cloudy skies along with areas of fog. Winds Tonight will be out of the south, north, or east under 15 mph.

Saturday and Saturday Night:

A stationary front will remain well to our south during this period while the disturbance passing through the Upper Midwest exits to our east by late Tonight, but a second disturbance and area of low pressure are expected to move from the Northern Plains to the Upper Midwest by Saturday Night. Partly sunny to mostly cloudy skies are expected on Saturday with areas of fog possible, especially near Lake Superior. A few showers or thunderstorms could also occur at times in Western-Southern areas. Scattered showers or thunderstorms will remain a possibility Tomorrow Night across our area with mostly cloudy skies along with areas of fog. Severe weather chances look fairly low across our area Tomorrow and Tomorrow Night. Heavy rainfall seems to be a bigger concern if convection can develop. Highs Tomorrow will be in the 50s near Lake Superior with 60s and 70s elsewhere, a few locales in Southwest areas could reach the 80s. Lows Tomorrow Night will be in the 50s and 60s. Winds during this period will be out of the south or east under 20 mph.

Extended Forecast:

Low pressure is forecast to move off to our east on Sunday while an upper level trough drops south into Northern Minnesota. A few showers are possible across our on Sunday with highs mainly in the 70s. A pattern change looks likely from Sunday Night through the middle of next week as an amplified northerly 500 mb flow locks in with an upper level low over Eastern Ontario Province while strong high pressure builds south out of Northwest Ontario-Hudson Bay Canada. A period of dry weather is expected for the Upper Midwest from next Monday through next Wednesday due to this pattern change.

Low temperatures Sunday Night and Monday Night will be in the 40s and 50s with highs on Monday in the 60s and 70s.

5 Day Forecast for Duluth/Superior

.Tonight... Mostly cloudy with areas of fog. A few showers possible This Evening. Low 50 to 55. Wind east at 10 to 15 mph.

.Saturday... Considerable cloudiness. Areas of fog. High 61 to 66 but cooler near Lake Superior. Wind east at 10 to 15 mph.

.Saturday Night... Mostly cloudy. Showers possible. Low 50 to 55. Wind east at 10 to 15 mph. Chance of rain 20%.

.Sunday... Showers possible, otherwise variable cloudiness. High 68 to 73. Chance of rain 20%.

.Sunday Night... Decreasing cloudiness. Low 50 to 55.

.Monday... Partly cloudy. High 65 to 70.

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

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

Normal High Temperature Today 73 degrees

Normal Low Temperature Today 51 degrees

Tim