Tornado Warning 13, NWS Sioux Falls, SD

Issued

Apr 9, 2011, 10:50 PM CDT (03:50 UTC)

Expired

Apr 9, 2011, 11:30 PM CDT

In force

40 min

Issued by

NWS Sioux Falls, SD

Area

Storm-based polygon

Counties Buena Vista County, IA, Cherokee County, IA

The Sioux Falls radar (KFSD), 135 km from the middle of the area, began a volume at 03:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

341 
WFUS53 KFSD 100350
TORFSD
IAC021-035-100430-
/O.NEW.KFSD.TO.W.0013.110410T0350Z-110410T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1050 PM CDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN BUENA VISTA COUNTY IN NORTHWEST IOWA...
  NORTHEASTERN CHEROKEE COUNTY IN NORTHWEST IOWA...

* UNTIL 1130 PM CDT

* AT 1049 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
  DANGEROUS STORM WAS LOCATED NEAR CHEROKEE...OR 23 MILES WEST OF
  STORM LAKE...AND MOVING NORTHEAST AT 35 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  LARRABEE AND AURELIA AROUND 1055 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

THIS WARNING REPLACES THE PREVIOUS WARNINGS THAT ARE IN EFFECT.

&&

LAT...LON 4272 9530 4271 9564 4292 9565 4292 9546
      4291 9530
TIME...MOT...LOC 0349Z 240DEG 31KT 4278 9559

$$

CJ

975 
WWUS53 KFSD 100403
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1103 PM CDT SAT APR 9 2011

IAC021-035-100430-
/O.CON.KFSD.TO.W.0013.000000T0000Z-110410T0430Z/
CHEROKEE IA-BUENA VISTA IA-
1103 PM CDT SAT APR 9 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BUENA VISTA
AND NORTHEASTERN CHEROKEE COUNTIES UNTIL 1130 PM CDT...

AT 1104 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED NEAR LARRABEE...OR 19 MILES NORTHWEST OF
STORM LAKE...MOVING NORTHEAST AT 35 MPH.

THIS TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN CHEROKEE
AND NORTHWESTERN BUENA VISTA COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4277 9551 4283 9555 4291 9554 4291 9530
      4276 9530
TIME...MOT...LOC 0404Z 240DEG 31KT 4284 9544

$$

CJ

050 
WWUS53 KFSD 100423
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1123 PM CDT SAT APR 9 2011

IAC021-035-100433-
/O.EXP.KFSD.TO.W.0013.000000T0000Z-110410T0430Z/
CHEROKEE IA-BUENA VISTA IA-
1123 PM CDT SAT APR 9 2011

...THE TORNADO WARNING FOR NORTHWESTERN BUENA VISTA AND NORTHEASTERN
CHEROKEE COUNTIES WILL EXPIRE AT 1130 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4277 9551 4283 9555 4291 9554 4291 9530
      4276 9530
TIME...MOT...LOC 0423Z 240DEG 31KT 4292 9524

$$

CJ

Tornado Warnings in Iowa, 2011Every tornado warning in 2011Tornadoes in 2011

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.