Alert archive / Iowa / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 150, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 14, 2012, 6:31 PM CDT for 4 counties in Iowa. It was in force for 29 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 14, 2012, 6:31 PM CDT (23:31 UTC)
- Expired
- Jun 14, 2012, 7:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Cherokee County, IA, Ida County, IA, Plymouth County, IA, Woodbury County, IA
The radar
The Sioux Falls radar (KFSD), 139 km from the middle of the area, began a volume at 23:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 14, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.5 hours before the alert went out and 156 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.
- Mixed-layer CAPE
- 1190 J/kg
- Mixed-layer CIN
- -322 J/kg
- Mixed-layer LCL
- 951 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
935 WUUS53 KFSD 142331 SVRFSD IAC035-093-149-193-150015- /O.NEW.KFSD.SV.W.0150.120614T2331Z-120615T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 631 PM CDT THU JUN 14 2012 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CHEROKEE COUNTY IN NORTHWEST IOWA... NORTHWESTERN IDA COUNTY IN WEST CENTRAL IOWA... SOUTHEASTERN PLYMOUTH COUNTY IN NORTHWEST IOWA... NORTH CENTRAL WOODBURY COUNTY IN WEST CENTRAL IOWA... * UNTIL 715 PM CDT * AT 632 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PIERSON...OR 20 MILES SOUTHEAST OF LE MARS...AND MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WASHTA AROUND 650 PM CDT... QUIMBY AROUND 655 PM CDT... AURELIA AROUND 715 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4272 9540 4254 9539 4244 9607 4268 9601 TIME...MOT...LOC 2332Z 262DEG 28KT 4257 9589 WIND...HAIL 60MPH 1.25IN $$ WEISSER
2 follow-up statements
554 WWUS53 KFSD 142353 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 653 PM CDT THU JUN 14 2012 IAC035-093-149-193-150015- /O.CON.KFSD.SV.W.0150.000000T0000Z-120615T0015Z/ PLYMOUTH IA-IDA IA-CHEROKEE IA-WOODBURY IA- 653 PM CDT THU JUN 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL WOODBURY...SOUTHERN CHEROKEE...NORTHWESTERN IDA AND SOUTHEASTERN PLYMOUTH COUNTIES UNTIL 715 PM CDT... AT 653 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CORRECTIONVILLE...OR 21 MILES NORTHWEST OF IDA GROVE...MOVING EAST AT 20 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... WASHTA AROUND 705 PM CDT... QUIMBY AROUND 715 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4272 9540 4254 9539 4244 9607 4268 9601 TIME...MOT...LOC 2353Z 267DEG 19KT 4250 9582 WIND...HAIL 60MPH 1.00IN $$ WEISSER
098 WWUS53 KFSD 150000 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 700 PM CDT THU JUN 14 2012 IAC035-093-149-193-150011- /O.CAN.KFSD.SV.W.0150.000000T0000Z-120615T0015Z/ PLYMOUTH IA-IDA IA-CHEROKEE IA-WOODBURY IA- 700 PM CDT THU JUN 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WOODBURY... SOUTHERN CHEROKEE...NORTHWESTERN IDA AND SOUTHEASTERN PLYMOUTH COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4272 9540 4254 9539 4244 9607 4268 9601 TIME...MOT...LOC 0001Z 267DEG 19KT 4250 9576 $$ WEISSER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 5:06 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 39 min |
| Jun 14, 6:01 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 29 min |
| Jun 14, 6:25 PM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 35 min |
| Jun 14, 6:28 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 17 min |
| Jun 14, 6:47 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 23 min |
| Jun 14, 6:50 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 26 min |
| Jun 14, 6:56 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 34 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2012Every severe thunderstorm warning in 2012
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.