Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 15, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 1, 2012, 5:16 PM CDT for Pipestone County, Minnesota; Moody County, South Dakota. It was in force for 29 min. 2 reports 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 1, 2012, 5:16 PM CDT (22:16 UTC)
- Expired
- May 1, 2012, 5:45 PM CDT
- In force
- 29 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 58.0 mph
Counties Pipestone County, MN, Moody County, SD
The radar
The Sioux Falls radar (KFSD), 52 km from the middle of the area, began a volume at 22:17 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 1, 5:20 PM CDT | HAIL 0.75 | 3 Wsw Pipestone, MN | |
| May 1, 5:25 PM CDT | HAIL 0.88 | 6 Wsw Pipestone, MN |
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 1, 2:59 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.3 hours before the alert went out and 192 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
- 364 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 607 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 233 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
835 WUUS53 KFSD 012216 SVRFSD MNC117-SDC101-012245- /O.NEW.KFSD.SV.W.0015.120501T2216Z-120501T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 516 PM CDT TUE MAY 1 2012 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN PIPESTONE COUNTY IN SOUTHWEST MINNESOTA... SOUTHEASTERN MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA... * UNTIL 545 PM CDT * AT 516 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 6 MILES NORTHWEST OF JASPER...OR 12 MILES SOUTHWEST OF PIPESTONE...AND MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PIPESTONE...PIPESTONE NATIONAL MONUMENT AND TROSKY AROUND 535 PM CDT... OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE IHLEN. 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. && A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA. LAT...LON 4409 9624 4388 9623 4385 9654 4396 9655 TIME...MOT...LOC 2216Z 240DEG 25KT 4391 9648 WIND...HAIL <58MPH 1.00IN $$ CJ
2 follow-up statements
385 WWUS53 KFSD 012229 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 529 PM CDT TUE MAY 1 2012 SDC101-012239- /O.CAN.KFSD.SV.W.0015.000000T0000Z-120501T2245Z/ MOODY SD- 529 PM CDT TUE MAY 1 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MOODY COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4409 9624 4390 9624 4387 9644 4399 9645 TIME...MOT...LOC 2229Z 237DEG 26KT 4397 9637 $$ MNC117-012245- /O.CON.KFSD.SV.W.0015.000000T0000Z-120501T2245Z/ PIPESTONE MN- 529 PM CDT TUE MAY 1 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL PIPESTONE COUNTY UNTIL 545 PM CDT... AT 529 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR PIPESTONE...MOVING NORTHEAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... PIPESTONE AND PIPESTONE NATIONAL MONUMENT AROUND 535 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. 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 4409 9624 4390 9624 4387 9644 4399 9645 TIME...MOT...LOC 2229Z 237DEG 26KT 4397 9637 WIND...HAIL <58MPH 1.00IN $$ CJ
101 WWUS53 KFSD 012242 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 542 PM CDT TUE MAY 1 2012 MNC117-012251- /O.EXP.KFSD.SV.W.0015.000000T0000Z-120501T2245Z/ PIPESTONE MN- 542 PM CDT TUE MAY 1 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PIPESTONE COUNTY WILL EXPIRE AT 545 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER SMALL HAIL WIND GUSTS TO 50 MPH ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4409 9624 4390 9624 4387 9644 4399 9645 TIME...MOT...LOC 2241Z 237DEG 26KT 4402 9627 $$ CJ
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 4:31 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Lyon, Murray, Pipestone | 29 min |
| May 1, 4:57 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 33 min |
| May 1, 5:19 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Murray | 26 min |
| May 1, 6:56 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Murray | 34 min |
| May 1, 3:35 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 40 min |
| May 1, 4:02 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 28 min |
| May 1, 4:03 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook | 27 min |
| May 1, 6:18 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Minnehaha | 27 min |
| May 1, 6:29 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Lincoln, McCook, Minnehaha, Turner | 46 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Severe 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.