Alert archive / Iowa / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 53, NWS Sioux Falls, SD

June 10, 20164 counties in Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 10, 2016, 11:53 PM CDT for 4 counties in Iowa. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 10, 2016, 11:53 PM CDT (04:53 UTC)
Expired: Jun 11, 2016, 12:09 AM CDT
In force: 16 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Cherokee County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA

The radar

The Sioux Falls radar (KFSD), 103 km from the middle of the area, began a volume at 04:53 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.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.9 hours before the alert went out and 182 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2023 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 2057 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

As transmitted.

945 
WUUS53 KFSD 110453
SVRFSD
IAC035-141-149-167-110530-
/O.NEW.KFSD.SV.W.0053.160611T0453Z-160611T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1153 PM CDT FRI JUN 10 2016

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CHEROKEE COUNTY IN NORTHWESTERN IOWA...
  SOUTHEASTERN SIOUX COUNTY IN NORTHWESTERN IOWA...
  SOUTHWESTERN O'BRIEN COUNTY IN NORTHWESTERN IOWA...
  NORTHEASTERN PLYMOUTH COUNTY IN NORTHWESTERN IOWA...

* UNTIL 1230 AM CDT

* AT 1152 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GRANVILLE...
  OR 8 MILES SOUTHEAST OF ORANGE CITY...MOVING SOUTHEAST AT 20 MPH.

  HAZARD...QUARTER SIZE HAIL. 

  SOURCE...TRAINED WEATHER SPOTTERS. AT 1150 PM CDT...QUARTER SIZED
            HAIL WAS REPORTED 1 MILE WEST OF GRANVILLE. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  MARCUS AROUND 1220 AM CDT. 
  CLEGHORN AROUND 1230 AM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE MERIDEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4297 9606 4308 9590 4287 9550 4267 9578
TIME...MOT...LOC 0452Z 313DEG 17KT 4295 9591 

HAIL...1.00IN
WIND...<50MPH
 
$$

HANKO

1 follow-up statement

757 
WWUS53 KFSD 110509
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1209 AM CDT SAT JUN 11 2016

IAC035-141-149-167-110518-
/O.CAN.KFSD.SV.W.0053.000000T0000Z-160611T0530Z/
CHEROKEE IA-SIOUX IA-O'BRIEN IA-PLYMOUTH IA-
1209 AM CDT SAT JUN 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHEROKEE...
SOUTHEASTERN SIOUX...SOUTHWESTERN O'BRIEN AND NORTHEASTERN PLYMOUTH
COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER SMALL HAIL IS
STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
SIOUX FALLS.

LAT...LON 4297 9606 4308 9590 4287 9550 4267 9578
TIME...MOT...LOC 0506Z 313DEG 17KT 4290 9583 

$$

HANKO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:24 PM CDT	Severe Thunderstorm Warning	FSD	Osceola	36 min
Jun 10, 7:33 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson	42 min
Jun 10, 8:15 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson	45 min
Jun 10, 9:00 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, O'Brien, Osceola	60 min
Jun 10, 9:59 PM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien	61 min
Jun 10, 10:03 PM CDT	Severe Thunderstorm Warning	FSD	O'Brien, Osceola, Sioux	42 min
Jun 10, 10:44 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Sioux	46 min
Jun 10, 11:15 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux	45 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.