Posted at 8:18 AM on September 15, 2010
by Paul Huttner
Filed under: Rainfall
Our wet Wednesday arrived with a flash and a bang this morning.
Wave #1 of showers and a few thunder boomers woke us around 5am this morning. The next wave is moving through southern Minnesota today, and a third wave may linger into this evening.
A vigorous low pressure system is bringing a good shot of rainfall to southern Minnesota today. By the time it's done tonight, many areas will record .50" to 1" of rainfall, with some rain gauges brimming with over an inch.
NEXRAD Storm total rainfall shows heaviest rains in southwest Minnesota Wednesday morning.
Here are some rainfall totals around the metro with the morning wave of rain.
Eden Prairie .12"
St. Paul .24"
Twin Cities Airport .29"
Though we'll see a little lightning and hear some cracks of thunder, it appears most of the rain will come through without widespread severe weather. Still, there is a slight risk for severe weather over portions of southern Minnesota, with a better chance in Iowa today.
Expect occasional rain and some thunder through this evening before the system pulls out tonight.
Posted at 7:27 PM on September 15, 2010
by Paul Huttner
Filed under: Severe weather
Radar and satellite trends continue to favor storms with locally heavy rainfall through tonight. Expect local downpours, and some areas will receive 1" to 2" rainfall totals overnight.
There will be some localized street flooding tonight in the metro and throughout the southern half of Minnesota.
It's a stormy night in Minnesota.
Strong to severe storms continue to fire in southern Minnesota, and other storms will move through the metro area with rain, gusty winds and thunder through tonight.
Expect occasional moderate to heavy rain with some areas getting 1"+ through tonight.
MPX continues Tornado Warning for Le Sueur [MN] till 6:45 PM CDT ...AT 626 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED NEAR ST HENRY...AND MOVING NORTHEAST AT 35 MPH.
MPX: 2 E St Peter [Le Sueur Co, MN] trained spotter reports HAIL of quarter size (E1.00 INCH) at 06:13 PM CDT --
MPX: 2 Ne Waldorf [Waseca Co, MN] trained spotter reports HAIL of half dollar size (E1.25 INCH) at 06:00 PM CDT --
BULLETIN - EAS ACTIVATION REQUESTED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
613 PM CDT WED SEP 15 2010
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* TORNADO WARNING FOR...
LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL 645 PM CDT
* AT 608 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS NEAR
KASOTA...OR OVER KASOTA...AND MOVING EAST NORTHEAST AT 35 MPH.
AT 610 PM...A SPOTTER REPORTED A WALL CLOUD JUST NORTH OF MANKATO
WITH THIS STORM.
SPC has issued a tornado watch until 8pm for much of southern Minnesota. The watch area technically does not include the Twin Cities metro, but it's close enough to be watched for potential severe storms in the metro.
The watch area does include Redwood Falls, Mankato, and runs right up to the southwest metro border counties.
A warm front has pushed into southern Minnesota, and temperatures are near 80 degrees this afternoon near the Iowa border. Temps in the 70s lie just south of the Twin Cities metro where skies have cleared for sunshine today. This has destabilized the atmosphere enough to trigger another wave of thunderstorms, which may roll through the Twin Cities and southern Minnesota late this afternoon.
Keep an eye out for potential severe storms and possible tornadoes especially south of the metro along the I-90 corridor today.