Alert archive / South Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 95, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 5, 2012, 10:57 PM CDT for Brookings County, Lake County, South Dakota. It was in force for 33 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
- May 5, 2012, 10:57 PM CDT (03:57 UTC)
- Expired
- May 5, 2012, 11:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 58.0 mph
Counties Brookings County, SD, Lake County, SD
The radar
The Sioux Falls radar (KFSD), 60 km from the middle of the area, began a volume at 03:56 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 |
|---|---|---|---|
| May 5, 11:30 PM CDT | TSTM WND GST 60 | 2 Ene Wentworth, SD | SEVERAL BRANCHES DOWN. ALSO ONE HALF INCH SIZE HAIL COVERED THE GROUND. |
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 |
|---|---|---|---|
| May 5, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 4.0 hours before the alert went out and 140 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
- 657 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
497
WUUS53 KFSD 060357
SVRFSD
SDC011-079-060430-
/O.NEW.KFSD.SV.W.0095.120506T0357Z-120506T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1057 PM CDT SAT MAY 5 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN BROOKINGS COUNTY IN EAST CENTRAL SOUTH DAKOTA...
LAKE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
* UNTIL 1130 PM CDT
* AT 1056 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES NORTH OF MADISON TO LAKE HERMAN STATE
PARK...AND MOVING EAST AT 20 MPH.
AT 1054 PM CDT...NICKEL SIZE HAIL WAS REPORTED 1.5 MILES WEST
OF MADISON.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MADISON AROUND 1105 PM CDT...
NUNDA AND SINAI AROUND 1110 PM CDT...
WENTWORTH AROUND 1125 PM CDT...
CHESTER AROUND 1130 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 4386 9690 4385 9737 4420 9717 4420 9713
4426 9712 4427 9688
TIME...MOT...LOC 0356Z 259DEG 16KT 4409 9709 4399 9717
WIND...HAIL <58MPH 1.00IN
$$
JH2 follow-up statements
080
WWUS53 KFSD 060416
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1116 PM CDT SAT MAY 5 2012
SDC011-079-060430-
/O.CON.KFSD.SV.W.0095.000000T0000Z-120506T0430Z/
LAKE SD-BROOKINGS SD-
1116 PM CDT SAT MAY 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
BROOKINGS AND LAKE COUNTIES UNTIL 1130 PM CDT...
AT 1114 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
NUNDA TO WENTWORTH...MOVING EAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
WENTWORTH THROUGH 1130 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4386 9690 4385 9737 4420 9717 4420 9713
4426 9712 4427 9688
TIME...MOT...LOC 0414Z 252DEG 24KT 4411 9697 4399 9699
WIND...HAIL <58MPH 1.00IN
$$
JH729
WWUS53 KFSD 060429
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1129 PM CDT SAT MAY 5 2012
SDC011-079-060436-
/O.EXP.KFSD.SV.W.0095.000000T0000Z-120506T0430Z/
LAKE SD-BROOKINGS SD-
1129 PM CDT SAT MAY 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BROOKINGS AND
LAKE COUNTIES WILL EXPIRE AT 1130 PM CDT...
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN LAKE
COUNTY UNTIL 1230 AM CDT...
THE STORM ACROSS FAR EASTERN LAKE COUNTY REMAINS IN A SEVERE
THUNDERSTORM WARNING UNTIL 1230 AM CDT. ELSEWHERE...SMALL HAIL AND
HEAVY RAIN ARE STILL POSSIBLE WITH ADDITIONAL THUNDERSTORMS MOVING
INTO THE AREA FROM THE WEST.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT.
LAT...LON 4386 9690 4385 9737 4420 9717 4420 9713
4426 9712 4427 9688
TIME...MOT...LOC 0426Z 252DEG 24KT 4413 9686 4401 9688
$$
JHThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:05 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, McCook, Miner | 25 min |
| May 5, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Lake, McCook, Miner, Sanborn | 46 min |
| May 5, 7:30 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Miner, Sanborn | 45 min |
| May 5, 7:37 PM CDT | Flash Flood Warning | FSD | Davison, Hanson, Miner, Sanborn | 7 hr |
| May 5, 7:41 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 36 min |
| May 5, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 46 min |
| May 5, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Lake, McCook, Miner, Minnehaha and 1 more | 49 min |
| May 5, 8:16 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 29 min |
| May 5, 8:42 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 48 min |
| May 5, 8:46 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix | 44 min |
| May 5, 8:57 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Hanson, Lake, McCook, Miner, Minnehaha and 1 more | 48 min |
| May 5, 9:05 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Miner, Sanborn | 25 min |
| May 5, 9:07 PM CDT | Flash Flood Warning | FSD | Lake, Miner | 7 hr |
| May 5, 9:26 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Miner, Sanborn | 23 min |
| May 5, 9:27 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 28 min |
| May 5, 9:29 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 46 min |
| May 5, 9:42 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 48 min |
| May 5, 10:02 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Miner, Sanborn | 28 min |
| May 5, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 38 min |
| May 5, 10:15 PM CDT | Flash Flood Warning | FSD | Moody | 4 hr |
| May 5, 10:28 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Minnehaha, Moody | 62 min |
| May 5, 10:31 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Miner | 29 min |
| May 5, 11:08 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Lake, McCook, Miner | 37 min |
| May 5, 11:25 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 65 min |
| May 5, 11:45 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner, Minnehaha | 45 min |
| May 6, 12:22 AM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 38 min |
| May 6, 1:08 AM CDT | Areal Flood Warning | FSD | Brookings, Hanson, Kingsbury, Lake, McCook, Miner and 2 more | 33 hr |
| May 6, 4:08 AM CDT | River Flood Warning | FSD | Moody | 23 hr |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Brookings, Moody | 29 hr |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Minnehaha, Moody | 3 days |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Minnehaha | 4 days |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Lincoln, Minnehaha | 4 days |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Lincoln, Union | 7 days |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | Union | 7 days |
| May 6, 8:24 AM CDT | River Flood Warning | FSD | McCook | 4 days |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Davison, Hanson | 7 days |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Hutchinson, Yankton | 5 days |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Yankton | 44 hr |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Turner | 71 hr |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Turner | 5 days |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | Clay | 7 days |
| May 6, 6:58 PM CDT | River Flood Warning | FSD | Minnehaha | 3 days |
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.