/Issued 4:19 PM CDT, Monday, August 26, 2013/
-Here’s a satellite loop from Sunday Night as a couple rounds of heavy duty thunderstorms plowed through parts of Northeast Minnesota and Northwest Wisconsin…The South Shore of Lake Superior was hit especially hard early This Morning. (Source, Unisys weather)
*Local Storm Report for August 25-26, 2013*
Source: National Weather Service Duluth, Minnesota
*8:56 PM CDT 8/25/13: 0.25″ HAIL. Chisholm, MN (St. Louis County)
*10:35 PM CDT 8/25/13: 46mph THUNDERSTORM WIND GUST. Superior, WI (Douglas County)
*10:59 PM CDT 8/25/13: 41mph THUNDERSTORM WIND GUST. Devils Island, WI (Ashland County)
*11:20 PM CDT 8/25/13: 36mph THUNDERSTORM WIND GUST. Port Wing, WI (Bayfield County)
*12:15 AM CDT 8/26/13: 44mph THUNDERSTORM WIND GUST. Saxon, WI (Iron County)
*10:24 PM CDT 8/25/13: 48mph THUNDERSTORM WIND GUST. Silver Bay, MN (Lake County)
*11:50 PM CDT 8/25/13: 45mph THUNDERSTORM WIND GUST. 15 E of Duluth, MN.
*12:00 AM CDT 8/26/13: 51mph THUNDERSTORM WIND GUST. 6 NE of Port Wing, WI (Bayfield County)
*1:17 AM CDT 8/26/13: HEAVY RAIN. 2.90″. Bayfield, WI (Bayfield County)
*2:01 AM CDT 8/26/13: HEAVY RAIN. 2.84″. 10 N of Bayfield, WI (Bayfield County)
*7:24 AM CDT 8/26/13: HEAVY RAIN. 4.00″. 4 W of Hayward, WI (Washburn County)
Rainfall report for August 25-26, 2013
Source: National Weather Service Duluth, Minnesota
Duluth, MN: 0.07″
Ashland, WI: 2.20″
Hayward, WI: 2.39″
Embarrass, MN: 0.25″
Butternut, WI: 1.53″
Gurney, WI: 2.86″
Madeline Island, WI: 2.91″
9 N of Bayfield, WI: 3.23″
4 W of Clam Lake, WI: 1.48″
-Rainfall map for August 25-26, ending the Morning of the 26th. 1-3″+ totals in Northern Wisconsin. (Source, Midwest Regional Climate Center)
Weather Tidbits for Duluth, MN (Airport location)
-It finally happened! The 1st thunderstorm of August occurred on Sunday (25th) And this was also the 1st thunderstorm day since July 25th.
-3 days so far this month at or above 90F. This is the most in 12 years. The greatest amount of days at or above 90F is 4 in 1961 and more recently in 2001. Note: Data goes back to 1948. (Source, Jason Sydejko KQDS Fox 21 TV via Facebook)
Today’s Weather Summary for Northeast Minnesota and Northwest Wisconsin
Another very hot and muggy day Today but there was one notable exception and this was for areas near Lake Superior as an east wind increased during the day resulting in high temperatures holding in the 70s to lower 80s, but dew points were still around 70 or in the lower 70s so it still felt pretty uncomfortable, but not quite as bad as 24 hours ago. Farther inland it was another roaster Today with highs in the 80s and 90s with heat indices of 95 to around 105 degrees. Late This Afternoon a warm front was draped across North Central Minnesota with an area of low pressure over Northern South Dakota. There have been some showers and scattered thunderstorms working their way into Western/Southern portions of the Northland This Afternoon, but so far this activity hasn’t been very strong.
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
Short Term Forecast – Confidence: High.
Tonight (August 26)
Occasional showers and thunderstorms will occur Tonight especially across the Southern half of the area, or say from about Bigfork to Silver Bay and points south. The greatest risk for heavier downpours looks to be along and south of Highway 2. As for the severe thunderstorm potential…There certainly is one Tonight with a lot of instability, moisture, and decent amounts of wind shear around. Late Afternoon CAPE ranged from 2000-4000+ j/kg with Lifted Indices of -3 to -10C. 0-6KM and Effective Bulk Shear ranged from 30 to around 50 knots. Those ingredients are enough to produce severe thunderstorms. Mid level winds will also become favorable for stronger storm development Tonight and with a surface boundary over parts of the area and a surface low moving in from South Dakota the stage should be set for some thunderstorm activity with a few of those storms possibly becoming severe…Large hail and damaging winds are the main threats along with frequent lightning and heavy rain. Low temperatures Tonight will be in the 60s and 70s with south, east, or north winds at 5 to 15 mph.
Tuesday and Tuesday Night (August 27)
Low pressure exits to our south/east Tuesday AM with a surface front pushing into Southern Minnesota. Another period of very warm and humid weather is expected with highs Tuesday in the 80s and 90s with cooler temperatures near Lake Superior. Lows Tuesday Night will be in the 60s and 70s. Winds will be out of the north or east at 10 to 15 mph. Partly to mostly cloudy skies are forecast this period. A few showers and thunderstorms are possible as well, mainly over Northern Wisconsin.
Extended Forecast – Confidence: High.
Wednesday through Friday (August 28-30)
A cold front looks like it’ll pass through the area sometime on Wednesday or Thursday…This boundary could bring a few showers and thunderstorms to the Northland as it moves through. Dry weather is forecast on Friday. Highs will be in the 80s and 90s on Wednesday and Thursday and in the 70s and 80s on Friday. Lows Wednesday Night and Thursday Night will mainly be in the 60s.
Long Range Forecast – Confidence: Medium.
(August 31-September 5)
Pattern change??? The Europen model thinks so, other models not so much. The persistent ridge of high pressure located across the Central Plains may build west during this period which if it does could setup a northwest or more of a westerly flow for the Upper Midwest. If this happens, then temperatures will likely cool down but would probably remain above average – just not the extreme type of heat that we are in at the moment. Stay tuned! A few showers or thunderstorms are possible this weekend (31st-1st) And possibly again around the 4th-5th.
5 DAY FORECAST FOR DULUTH/SUPERIOR
*HEAT ADVISORY until 9 PM CDT Tonight*
.Tonight… Scattered showers and thunderstorms. Patchy fog possible. Muggy. Low 65 to 70. Wind east at 10 to 20 mph.
.Tuesday… Patchy fog possible. Muggy. Partly to mostly cloudy. High 81 to 86 but cooler near Lake Superior. Wind east at 10 to 20 mph.
.Tuesday Night… Patchy fog possible. Muggy. Partly to mostly cloudy. Low 60 to 65. Wind east at 10 to 15 mph.
.Wednesday… Partly cloudy. High 85 to 90 but cooler near Lake Superior.
.Wednesday Night… Partly cloudy. Low 60 to 65.
.Thursday… Showers or thunderstorms possible. High 80 to 85.
.Thursday Night… Showers or thunderstorms possible. Low 60 to 65.
.Friday… Partly sunny. High 80 to 85.
Normal temperatures for Today
Sunrise Tuesday: 6:22 AM CDT
Sunset Tuesday: 7:57 PM CDT