Hail Potential South Metro. Doppler radar at 3 pm shows a line of strong/severe T-storms developing south of the Twin Cities, some capable of 1-2" diameter hail. A Severe Storm Watch is in effect for much of Wisconsin until 11 PM. Here are details on the warnings posted just south of MSP:
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
252 PM CDT WED AUG 21 2013
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
NORTHEASTERN NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
SOUTHEASTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...
* UNTIL 330 PM CDT
* AT 249 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES SOUTH OF SHAKOPEE TO 6 MILES SOUTHWEST OF MN
VALLEY STATE REC AREA TO GAYLORD...AND MOVING SOUTHEAST AT 20 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
NEW PRAGUE...HENDERSON...RUSH RIVER...NORSELAND...ST BENEDICT...
HELENA...CREDIT RIVER...LE SUEUR...CRYSTAL BAY AND OTTAWA.
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Only in Minnesota can you be knee-deep in flood waters with dust blowing in your face. Weather has always been extreme at this latitude, but there's growing evidence the swings are becoming even bigger. Which brings up the challenge (and opportunity) of managing water: too much water, or not enough water. More showers sprout today but generally dry weather is likely Friday into Sunday as temperatures moderate. The first week of August may feel more like mid-July.
Another free lawn-watering today (showers and T-storms, probably not severe) gives way to a clearing trend and a drop in humidity Thursday. The upcoming weekend looks lake-friendly, warm, but not obnoxiously so. Next week may see a few more 90s with a couple days of dew points in the oh-zone.
Monday was a fine summer day; a touch of heat and humidity, but not as swamp-like as late last week. We may brush 90F today before cooling off later this week - a good chance of heavy showers and T-storms Wednesday and Thursday. Long-range models hint at another hot front as early as next week.
Both Sunday and Monday will be excellent days to get outside, with highs in the mid to upper 80s. At least the heat we've had recently isn't like what they've seen in the Middle East. Click through for more details. - D.J. Kayser