Alert archive / Iowa / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 2, NWS Sioux Falls, SD

April 24, 20165 counties in Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 24, 2016, 4:43 PM CDT for 5 counties in Iowa. It was in force for 47 min. 7 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 24, 2016, 4:43 PM CDT (21:43 UTC)
Expired
Apr 24, 2016, 5:30 PM CDT
In force
47 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Buena Vista County, IA, Cherokee County, IA, Ida County, IA, Plymouth County, IA, Woodbury County, IA

The radar

The Omaha radar (KOAX), 136 km from the middle of the area, began a volume at 21:43 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.

What was reported inside it

TimeReportWhereRemark
Apr 24, 4:47 PM CDTHAIL 14 Nne Anthon, IA
Apr 24, 4:50 PM CDTHAIL 1.753 Sw Correctionville, IA
Apr 24, 5:03 PM CDTTSTM WND GST 653 Wsw Holstein, IAQUARTER SIZE HAIL ALSO REPORTED.
Apr 24, 5:05 PM CDTHAIL 1.5Correctionville, IA
Apr 24, 5:09 PM CDTHAIL 0.75Washta, IA
Apr 24, 5:10 PM CDTHAIL 1.255 Nw Holstein, IA
Apr 24, 5:23 PM CDTHAIL 12 S Cherokee, IA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 24, 2:28 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.7 hours before the alert went out and 136 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2016-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2016-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 440 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1281 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
440 m²/s²
0-3 km storm-relative helicity
498 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

213 
WUUS53 KFSD 242143
SVRFSD
IAC021-035-093-149-193-242230-
/O.NEW.KFSD.SV.W.0002.160424T2143Z-160424T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
443 PM CDT SUN APR 24 2016

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY IN NORTHWESTERN IOWA...
  EASTERN WOODBURY COUNTY IN WEST CENTRAL IOWA...
  NORTHWESTERN IDA COUNTY IN WEST CENTRAL IOWA...
  SOUTHEASTERN PLYMOUTH COUNTY IN NORTHWESTERN IOWA...
  WEST CENTRAL BUENA VISTA COUNTY IN NORTHWESTERN IOWA...

* UNTIL 530 PM CDT

* AT 441 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ANTHON...OR 21
  MILES WEST OF IDA GROVE...MOVING NORTHEAST AT 55 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  CORRECTIONVILLE...PIERSON AND CUSHING AROUND 450 PM CDT. 
  WASHTA AROUND 455 PM CDT. 
  QUIMBY AROUND 500 PM CDT. 
  CHEROKEE AND AURELIA AROUND 515 PM CDT. 
  LARRABEE AROUND 520 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OTO AND
MERIDEN.

THERE ARE ALSO MORE SEVERE OR NEAR SEVERE CELLS MOVING NORTHEASTWARD
THROUGH NORTHERN AND CENTRAL MONONA COUNTY AT THIS TIME. THEY ARE
ALSO MOVING NORTHEASTWARD AND WILL IMPACT EASTERN WOODBURY COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4222 9624 4291 9566 4278 9519 4221 9573
TIME...MOT...LOC 2141Z 220DEG 46KT 4243 9588 

HAIL...1.25IN
WIND...60MPH
 
$$

MJF
2 follow-up statements
007 
WWUS53 KFSD 242158
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
458 PM CDT SUN APR 24 2016

IAC021-035-093-149-193-242230-
/O.CON.KFSD.SV.W.0002.000000T0000Z-160424T2230Z/
CHEROKEE IA-WOODBURY IA-IDA IA-PLYMOUTH IA-BUENA VISTA IA-
458 PM CDT SUN APR 24 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CHEROKEE...EASTERN WOODBURY...NORTHWESTERN IDA...SOUTHEASTERN
PLYMOUTH AND WEST CENTRAL BUENA VISTA COUNTIES...

AT 457 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WASHTA...OR
18 MILES SOUTHWEST OF CHEROKEE...MOVING NORTHEAST AT 45 MPH. GOLF
BALL SIZE HAIL WAS REPORTED AT 4:50 PM...3 MILES SOUTHWEST
OF CORRECTIONVILLE BY LAW ENFORCEMENT.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT WIND 
         DAMAGE TO ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  WASHTA AROUND 500 PM CDT. 
  QUIMBY AROUND 510 PM CDT. 
  CHEROKEE AND AURELIA AROUND 525 PM CDT. 
  LARRABEE AROUND 530 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OTO AND
MERIDEN.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4222 9624 4291 9566 4278 9519 4221 9573
TIME...MOT...LOC 2157Z 214DEG 39KT 4254 9576 

HAIL...1.75IN
WIND...60MPH
 
$$

MJF
513 
WWUS53 KFSD 242217
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
517 PM CDT SUN APR 24 2016

IAC021-035-093-149-193-242230-
/O.CON.KFSD.SV.W.0002.000000T0000Z-160424T2230Z/
CHEROKEE IA-WOODBURY IA-IDA IA-PLYMOUTH IA-BUENA VISTA IA-
517 PM CDT SUN APR 24 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CHEROKEE...EASTERN WOODBURY...NORTHWESTERN IDA...SOUTHEASTERN
PLYMOUTH AND WEST CENTRAL BUENA VISTA COUNTIES...

AT 515 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER QUIMBY...OR 9
MILES SOUTHWEST OF CHEROKEE...MOVING NORTHEAST AT 40 MPH. SEVERAL
REPORTS OF QUARTER TO GOLF BALL SIZE HAIL HAS BEEN REPORTED WITH
THIS STORM OVER THE PAST 30 MINUTES.

HAZARD...GOLF BALL SIZE HAIL AND 60 TO 65 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT WIND 
         DAMAGE TO ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  CHEROKEE AND AURELIA AROUND 530 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OTO AND
MERIDEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4222 9624 4291 9566 4278 9519 4221 9573
TIME...MOT...LOC 2215Z 218DEG 33KT 4263 9563 

HAIL...1.75IN
WIND...60MPH
 
$$

MJF

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 4:06 PM CDTSevere Thunderstorm WarningFSDCherokee, Plymouth, Woodbury39 min
Apr 24, 5:27 PM CDTSevere Thunderstorm WarningFSDBuena Vista, Cherokee, Clay, O'Brien33 min
Apr 24, 6:04 PM CDTSevere Thunderstorm WarningFSDCherokee, Plymouth, Woodbury24 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2016Every severe thunderstorm warning in 2016

Sources

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