Alert archive / Iowa / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 50, NWS Sioux Falls, SD

June 10, 2016O'Brien County, Osceola County, Sioux County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 10, 2016, 10:03 PM CDT for O'Brien County, Osceola County, Sioux County, Iowa. It was in force for 42 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, 10:03 PM CDT (03:03 UTC)
Expired: Jun 10, 2016, 10:45 PM CDT
In force: 42 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties O'Brien County, IA, Osceola County, IA, Sioux County, IA

The radar

The Sioux Falls radar (KFSD), 92 km from the middle of the area, began a volume at 03:04 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, 3.1 hours before the alert went out and 215 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.

276 
WUUS53 KFSD 110303
SVRFSD
IAC141-143-167-110345-
/O.NEW.KFSD.SV.W.0050.160611T0303Z-160611T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1003 PM CDT FRI JUN 10 2016

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN OSCEOLA COUNTY IN NORTHWESTERN IOWA...
  NORTHEASTERN SIOUX COUNTY IN NORTHWESTERN IOWA...
  NORTHERN O'BRIEN COUNTY IN NORTHWESTERN IOWA...

* UNTIL 1045 PM CDT

* AT 1003 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ASHTON...OR
  NEAR SHELDON...MOVING SOUTHEAST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  SANBORN...MELVIN AND ARCHER AROUND 1020 PM CDT. 
  PRIMGHAR AROUND 1035 PM CDT. 
  HARTLEY AROUND 1045 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4318 9593 4338 9576 4323 9542 4300 9559
TIME...MOT...LOC 0303Z 302DEG 19KT 4324 9577 

HAIL...0.75IN
WIND...60MPH
 
$$

MJF

1 follow-up statement

359 
WWUS53 KFSD 110330
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1030 PM CDT FRI JUN 10 2016

IAC143-110339-
/O.CAN.KFSD.SV.W.0050.000000T0000Z-160611T0345Z/
OSCEOLA IA-
1030 PM CDT FRI JUN 10 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN OSCEOLA COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA...THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4318 9593 4326 9578 4322 9543 4300 9559
TIME...MOT...LOC 0329Z 302DEG 18KT 4313 9569 

$$

IAC141-167-110345-
/O.CON.KFSD.SV.W.0050.000000T0000Z-160611T0345Z/
SIOUX IA-O'BRIEN IA-
1030 PM CDT FRI JUN 10 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR EASTERN SIOUX AND NORTHERN O'BRIEN COUNTIES...

AT 1029 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ARCHER...OR 8
MILES SOUTHEAST OF SHELDON...MOVING SOUTHEAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  PRIMGHAR AROUND 1040 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4318 9593 4326 9578 4322 9543 4300 9559
TIME...MOT...LOC 0329Z 302DEG 18KT 4313 9569 

HAIL...<.75IN
WIND...60MPH
 
$$

MJF

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, 10:44 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
Jun 10, 11:53 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux	16 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.