Alert archive / South Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 8, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 15, 2012, 3:19 PM CDT for Brookings County, Moody County, South Dakota. It was in force for 16 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
- Apr 15, 2012, 3:19 PM CDT (20:19 UTC)
- Expired
- Apr 15, 2012, 3:35 PM CDT
- In force
- 16 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brookings County, SD, Moody County, SD
The radar
The Sioux Falls radar (KFSD), 73 km from the middle of the area, began a volume at 20:22 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 |
|---|---|---|---|
| Apr 15, 3:30 PM CDT | HAIL 1 | 4 Nw Brookings, SD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 8.3 hours before the alert went out and 147 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 484 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 656 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
184
WUUS53 KFSD 152019
SVRFSD
SDC011-101-152100-
/O.NEW.KFSD.SV.W.0008.120415T2019Z-120415T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
319 PM CDT SUN APR 15 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL BROOKINGS COUNTY IN EAST CENTRAL SOUTH DAKOTA...
NORTHWESTERN MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA...
* UNTIL 400 PM CDT
* AT 319 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 8 MILES SOUTH OF BROOKINGS...AND MOVING NORTH AT 40 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
AURORA...VOLGA AND BROOKINGS AROUND 330 PM CDT...
BRUCE AND WHITE AROUND 345 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 4419 9665 4409 9669 4410 9687 4416 9689
4419 9689 4420 9690 4455 9701 4455 9652
TIME...MOT...LOC 2019Z 185DEG 35KT 4419 9680
WIND...HAIL 60MPH 1.00IN
$$
LAFLIN2 follow-up statements
808 WWUS53 KFSD 152029 RRA SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 329 PM CDT SUN APR 15 2012 SDC101-152040- /O.CAN.KFSD.SV.W.0008.000000T0000Z-120415T2100Z/ MOODY SD- 329 PM CDT SUN APR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MOODY COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4420 9672 4420 9690 4455 9701 4455 9662 TIME...MOT...LOC 2030Z 185DEG 35KT 4430 9679 $$ SDC011-152100- /O.CON.KFSD.SV.W.0008.000000T0000Z-120415T2100Z/ BROOKINGS SD- 329 PM CDT SUN APR 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL BROOKINGS COUNTY UNTIL 400 PM CDT... AT 330 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 BROOKINGS...MOVING NORTH AT 40 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BRUCE AROUND 345 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 4420 9672 4420 9690 4455 9701 4455 9662 TIME...MOT...LOC 2030Z 185DEG 35KT 4430 9679 WIND...HAIL 60MPH 1.00IN $$ LAFLIN
082 WWUS53 KFSD 152035 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 335 PM CDT SUN APR 15 2012 SDC011-152045- /O.CAN.KFSD.SV.W.0008.000000T0000Z-120415T2100Z/ BROOKINGS SD- 335 PM CDT SUN APR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BROOKINGS COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4420 9672 4420 9690 4455 9701 4455 9662 TIME...MOT...LOC 2035Z 185DEG 35KT 4435 9678 $$ LAFLIN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 11:22 AM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 23 min |
| Apr 15, 11:45 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Miner, Sanborn | 45 min |
| Apr 15, 2:56 PM CDT | Tornado Warning | FSD | Bon Homme | 34 min |
| Apr 15, 5:10 PM CDT | High Wind Warning | FSD | Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 17 more | 11 hr |
| Apr 15, 5:10 PM CDT | Wind Advisory | FSD | Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld | 3 hr |
Nearby
Severe Thunderstorm Warnings in South Dakota, 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.