Tornado watch in effect for Twin Cities, north-central Minnesota
August 24, 2014 — 11:51pm
Tornado Watch until 11 PM. Many of the ingredients necessary for supercell thunderstorms are converging on central and eastern Minnesota. Bemidji, Brainerd, St. Cloud and the Twin Cities are all in the watch area, along with much of the St. Croix River Valley. Stay alert this evening - most of us will just see a heavy thunderstorm, possibly some small hail, but large hail, damaging straight-line winds and a few isolated tornadoes can't be ruled out. More details on the watch from NOAA SPC:
URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 475 NWS STORM PREDICTION CENTER NORMAN OK 345 PM CDT SUN AUG 24 2014 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF NORTHERN AND CENTRAL MINNESOTA NORTHWEST WISCONSIN * EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 1100 PM CDT. * PRIMARY THREATS INCLUDE... A FEW TORNADOES POSSIBLE ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH NORTHEAST OF BEMIDJI MINNESOTA TO 20 MILES SOUTH OF MINNEAPOLIS MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY LATE THIS AFTERNOON INTO EVENING AHEAD OF A COLD FRONT MOVING EAST ACROSS THE WATCH AREA. THE COMBINATION OF MODERATE TO STRONG INSTABILITY AND A VERTICALLY VEERING WIND PROFILE WITH MODERATE AMOUNTS OF LOW-LEVEL AND DEEP-LAYER SHEAR WILL BE SUPPORTIVE OF SUPERCELLS CAPABLE OF A FEW TORNADOES...LARGE HAIL AND DAMAGING WINDS. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24025.
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Remind me not to complain about the weather anytime soon. Parts of California have seen so much snow they called out the National Guard to help. More tornadoes will skip across the Mid South later today, while interior New England braces for over a foot of slushy snow Friday into Saturday. Minnesota? Mostly 50s, no big storms, nothing severe in sight. Whew...
Tuesday wasn't hard to take with blue sky and 60s, a dazzling preview of coming attractions. Our weather sours today as clouds thicken; a few showers possibly by tonight, but most of the action sails off to our south again. With tornadoes and hail buffeting the south and a possibly (significant) snowstorm brewing from Michigan to New England by late week I'm counting my weather blessings more than usual these days.
When the sun comes out and stays out most of the day actual temperatures tend to be warmer than model predictions. Once again today we should enjoy enough blue sky for highs near 60 F, well above average for late March. Speaking of sunshine the solution to climate change is shining down on us, a clean energy revolution now well underway. Today's blog focuses on one county where they're putting their money where their convictions are, a county that voted for Donald Trump, but very much believes in clean, renewable, American energy. Yesterday's talk in Lindstrom renewed by sense of optimism that we are going to figure this out, and clean air, water and land should absolutely be a bipartisan goal. Our kids deserve nothing less.
If you liked yesterday you'll love today and adore tomorrow. Our weekend weather was an acquired taste, but at least it didn't snow - or tornado. The pattern is ripe for more severe storm outbreaks over the southern half of the USA but big storms track south of Minnesota. Temperatures slowly mellow into next week; highs mostly in the 50s.
We stare out the window at a smear of stratus clouds Sunday, some thick enough to leak drizzle and light rain showers. Temperatures mellow later this week with a streak of 50s and relatively dry, quiet weather into next weekend as significant storms sail south of Minnesota. Check the blog for more details. -Todd Nelson