Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 175, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 25, 2012, 5:31 PM CDT for Dakota County, Nebraska; Woodbury County, Iowa. It was in force for 59 min. 1 report 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
- Jul 25, 2012, 5:31 PM CDT (22:31 UTC)
- Expired
- Jul 25, 2012, 6:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Woodbury County, IA, Dakota County, NE
The radar
The Omaha radar (KOAX), 106 km from the middle of the area, began a volume at 22:35 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 25, 5:35 PM CDT | TSTM WND DMG | 3 Nw Salix, IA | WINDS ESTIMATED AROUND 60 MPH WITH LOTS OF CORN BLOWN DOWN. ALSO PEA SIZE HAIL. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 25, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.5 hours before the alert went out and 106 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
- 675 J/kg
- Mixed-layer CIN
- -402 J/kg
- Mixed-layer LCL
- 2150 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
629
WUUS53 KFSD 252231
SVRFSD
IAC193-NEC043-252330-
/O.NEW.KFSD.SV.W.0175.120725T2231Z-120725T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
531 PM CDT WED JUL 25 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN WOODBURY COUNTY IN WEST CENTRAL IOWA...
SOUTHEASTERN DAKOTA COUNTY IN NORTHEAST NEBRASKA...
* UNTIL 630 PM CDT
* AT 532 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 SERGEANT BLUFF...OR 11 MILES SOUTH OF SIOUX CITY...AND
MOVING EAST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
SALIX AROUND 550 PM CDT...
SLOAN AROUND 610 PM CDT...
HORNICK AROUND 630 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE BRONSON.
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 4222 9635 4223 9633 4227 9635 4227 9651
4240 9656 4242 9606 4221 9600 4221 9634
TIME...MOT...LOC 2232Z 277DEG 12KT 4234 9637
WIND...HAIL 60MPH 1.00IN
$$
CHENARD3 follow-up statements
025
WWUS53 KFSD 252245
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
545 PM CDT WED JUL 25 2012
NEC043-252256-
/O.CAN.KFSD.SV.W.0175.000000T0000Z-120725T2330Z/
DAKOTA NE-
545 PM CDT WED JUL 25 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DAKOTA COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4222 9635 4223 9633 4227 9635 4229 9635
4239 9640 4242 9606 4221 9600 4221 9634
TIME...MOT...LOC 2246Z 277DEG 12KT 4233 9631
$$
IAC193-252330-
/O.CON.KFSD.SV.W.0175.000000T0000Z-120725T2330Z/
WOODBURY IA-
545 PM CDT WED JUL 25 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WOODBURY COUNTY UNTIL 630 PM CDT...
AT 546 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
SALIX...OR 12 MILES SOUTH OF SIOUX CITY...MOVING EAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
SLOAN AROUND 610 PM CDT...
HORNICK AROUND 630 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE BRONSON.
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 4222 9635 4223 9633 4227 9635 4229 9635
4239 9640 4242 9606 4221 9600 4221 9634
TIME...MOT...LOC 2246Z 277DEG 12KT 4233 9631
WIND...HAIL 60MPH 1.00IN
$$
SCHUMACHER763 WWUS53 KFSD 252309 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 609 PM CDT WED JUL 25 2012 IAC193-252330- /O.CON.KFSD.SV.W.0175.000000T0000Z-120725T2330Z/ WOODBURY IA- 609 PM CDT WED JUL 25 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL WOODBURY COUNTY UNTIL 630 PM CDT... AT 609 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SALIX...OR 15 MILES SOUTHEAST OF SIOUX CITY...MOVING EAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... HORNICK AROUND 630 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4221 9613 4235 9614 4238 9606 4221 9600 TIME...MOT...LOC 2309Z 277DEG 12KT 4232 9621 WIND...HAIL 60MPH 1.00IN $$ SCHUMACHER
655 WWUS53 KFSD 252320 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 620 PM CDT WED JUL 25 2012 IAC193-252331- /O.EXP.KFSD.SV.W.0175.000000T0000Z-120725T2330Z/ WOODBURY IA- 620 PM CDT WED JUL 25 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WOODBURY COUNTY WILL EXPIRE AT 630 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4221 9613 4235 9614 4238 9606 4221 9600 TIME...MOT...LOC 2321Z 277DEG 12KT 4231 9616 $$ SCHUMACHER
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:11 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 34 min |
| Jul 25, 5:15 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 39 min |
| Jul 25, 5:16 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Jul 25, 5:25 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien | 35 min |
| Jul 25, 5:43 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 47 min |
| Jul 25, 6:03 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 42 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2012Severe 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.