Severe Weather April 9/10/11 Upper Midwest & Deep South

#61 Postby **Dave** » Sat Apr 09, 2011 10:09 pm

CHEROKEE IA-
1007 PM CDT SAT APR 9 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CHEROKEE COUNTY UNTIL 1015
PM CDT...

AT 1007 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED NEAR QUIMBY...OR 22 MILES WEST OF STORM
LAKE...MOVING NORTHEAST AT 40 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
CHEROKEE AROUND 1015 PM CDT...

#62 Postby **brunota2003** » Sat Apr 09, 2011 10:09 pm

The one over Stone Lake has had a constant hook for a while...even before the NWS issued the TOR warning for it.

The Monona cell now has 17 TOR reports associated with it, along with three wind damage reports (they sound like TOR damage though).

#63 Postby **Dave** » Sat Apr 09, 2011 10:11 pm

DATE: APR 09 224600 EDT
TYPE: TORNADO
CITY: 7 MI W STORM LAKE
COUNTY BUENA VISTA
STATE: IA
SOURCE: STORM CHASER
DETAILS: TWO TORNADOES REPORTED BY
CHASERS 7 MILES WEST OF STORM LAKE RELAYED
BY MEDIA.

#64 Postby **Dave** » Sat Apr 09, 2011 10:14 pm

Another warning NW of Storm Lake now

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1013 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
WEST CENTRAL BUENA VISTA COUNTY IN NORTHWEST IOWA...
EAST CENTRAL CHEROKEE COUNTY IN NORTHWEST IOWA...

* UNTIL 1100 PM CDT

* AT 1013 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED NEAR QUIMBY...OR 21 MILES WEST OF STORM
LAKE...AND MOVING NORTHEAST AT 35 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
CHEROKEE AROUND 1020 PM CDT...
AURELIA AROUND 1025 PM CDT...

#65 Postby **Dave** » Sat Apr 09, 2011 10:15 pm

Another possible touchdown near Varina IA about 22 minutes ago.

#66 Postby **Dave** » Sat Apr 09, 2011 10:15 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1012 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
HANCOCK COUNTY IN NORTH CENTRAL IOWA...
SOUTHEASTERN KOSSUTH COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 1045 PM CDT

* AT 1008 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 9 MILES EAST OF ALGONA...AND MOVING EAST AT 30
MPH.

* LOCATIONS IMPACTED INCLUDE...
BRITT...GARNER...CORWITH...WESLEY AND CRYSTAL LAKE.

#67 Postby **Dave** » Sat Apr 09, 2011 10:16 pm

1 5 miles NW of Pomeroy IA....Tornado on the ground..damage unknown.

That was at 220300 edt....already passed.

#68 Postby **Dave** » Sat Apr 09, 2011 10:20 pm

Using VIL setting (vertical integrated liquid) for this shot...

#69 Postby **brunota2003** » Sat Apr 09, 2011 10:20 pm

5 ENE of Nemaha, power lines down, house damaged and gas leaking...likely tornado damage.

#70 Postby **Dave** » Sat Apr 09, 2011 10:21 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1018 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN CERRO GORDO COUNTY IN NORTH CENTRAL IOWA...
NORTHEASTERN HANCOCK COUNTY IN NORTH CENTRAL IOWA...
SOUTHEASTERN WINNEBAGO COUNTY IN NORTH CENTRAL IOWA...
WORTH COUNTY IN NORTH CENTRAL IOWA...

* UNTIL 1100 PM CDT

* AT 1017 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR GARNER...OR 17 MILES WEST OF MASON CITY...
AND MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
MASON CITY...CLEAR LAKE...MANLY...NORTHWOOD...VENTURA...FERTILE...
MASON CITY AIRPORT...JOICE...HANLONTOWN...PLYMOUTH...KENSETT...ROCK
FALLS AND GRAFTON.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 190 AND 214.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IMMEDIATELY SEEK SHELTER IN A BASEMENT...
OR IN AN INTERIOR ROOM OF A REINFORCED BUILDING. STAY AWAY FROM
WINDOWS.

#71 Postby **brunota2003** » Sat Apr 09, 2011 10:23 pm

1 W of Pocahontas...23:17 (6 minutes ago) Large Wedge tornado in progress.

#72 Postby **Dave** » Sat Apr 09, 2011 10:24 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1022 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
POCAHONTAS COUNTY IN NORTHWEST IOWA...

* UNTIL 1100 PM CDT

* AT 1021 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTH OF NEWELL...OR 12 MILES EAST OF
STORM LAKE...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
POCAHONTAS...VARINA...HAVELOCK...PLOVER...GILMORE CITY AND ROLFE.

#73 Postby **Dave** » Sat Apr 09, 2011 10:26 pm

Storm Relative Velocity (SRV 0.5 degrees)

#74 Postby **Dave** » Sat Apr 09, 2011 10:30 pm

These warnings are overlapping each other now...

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1028 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWESTERN HUMBOLDT COUNTY IN NORTH CENTRAL IOWA...
SOUTHWESTERN KOSSUTH COUNTY IN NORTH CENTRAL IOWA...
SOUTHEASTERN PALO ALTO COUNTY IN NORTHWEST IOWA...
NORTHEASTERN POCAHONTAS COUNTY IN NORTHWEST IOWA...

* UNTIL 1115 PM CDT

* AT 1025 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 10 MILES NORTH OF POCAHONTAS...OR 25 MILES
SOUTHWEST OF ALGONA...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
ALGONA...ROLFE...RODMAN...WEST BEND...OTTOSEN...WHITTEMORE...BODE
AND ALGONA AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IMMEDIATELY SEEK SHELTER IN A BASEMENT...
OR IN AN INTERIOR ROOM OF A REINFORCED BUILDING. STAY AWAY FROM
WINDOWS.

Bunkertor · #75 Postby **Bunkertor** » Sat Apr 09, 2011 10:31 pm

Dave wrote:Another possible touchdown near Varina IA about 22 minutes ago.

The offices have been dead on, it seems.

Coverage anyone ?

#76 Postby **Dave** » Sat Apr 09, 2011 10:32 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1031 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN CHEROKEE COUNTY IN NORTHWEST IOWA...

* UNTIL 1100 PM CDT

* AT 1031 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED 8 MILES SOUTH OF MARCUS...OR 17 MILES
EAST OF LE MARS...AND MOVING NORTHEAST AT 40 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
CLEGHORN AROUND 1045 PM CDT...
LARRABEE AROUND 1055 PM CDT...

#77 Postby **Dave** » Sat Apr 09, 2011 10:33 pm

That one just go thru Plover IA Tim?

#78 Postby **brunota2003** » Sat Apr 09, 2011 10:33 pm

That one cell, despite being overrun, just won't quit...18 TOR and 4 wind now, and not sure about coverage...but those poor people that just dealt with the Monona Wedge are now dealing with the Storm Lake cell.

And looks like it on radar...greatest rotation is on the north side of Plover.

#79 Postby **Dave** » Sat Apr 09, 2011 10:35 pm

Towns of Rodman & West Bend are next and it may split in between them.

#80 Postby **brunota2003** » Sat Apr 09, 2011 10:39 pm

I haven't seen any more LSRs from storm chasers or spotters saying the tornado is still on the ground with the Monona cell, maybe it finally lifted before it got to Plover?

Severe Weather April 9/10/11 Upper Midwest & Deep South

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