Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 46, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 9, 2011, 11:16 PM CDT for Jackson County, Nobles County, Minnesota. It was in force for 21 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
- Apr 9, 2011, 11:16 PM CDT (04:16 UTC)
- Expired
- Apr 9, 2011, 11:37 PM CDT
- In force
- 21 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 58.0 mph
Counties Jackson County, MN, Nobles County, MN
The radar
The Sioux Falls radar (KFSD), 96 km from the middle of the area, began a volume at 04:17 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 7:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 9, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.3 hours before the alert went out and 202 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
- 612 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 355 m²/s²
- 0-3 km storm-relative helicity
- 550 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
444 WUUS53 KFSD 100416 SVRFSD MNC063-105-100500- /O.NEW.KFSD.SV.W.0046.110410T0416Z-110410T0500Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1116 PM CDT SAT APR 9 2011 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN JACKSON COUNTY IN SOUTHWEST MINNESOTA... EASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA... * UNTIL MIDNIGHT CDT * AT 1116 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR RUSHMORE...OR 12 MILES WEST OF WORTHINGTON...AND MOVING NORTHEAST AT 45 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WORTHINGTON AROUND 1125 PM CDT... ROUND LAKE AROUND 1130 PM CDT... BREWSTER AROUND 1140 PM CDT... HERON LAKE AROUND 1150 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. && A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND NORTHEAST NEBRASKA AND SOUTHEASTERN SOUTH DAKOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 500 AM CDT SUNDAY MORNING FOR NORTHWEST IOWA. LAT...LON 4383 9531 4351 9532 4350 9587 4372 9590 TIME...MOT...LOC 0416Z 235DEG 38KT 4362 9580 WIND...HAIL <58MPH 1.00IN $$ CJ
2 follow-up statements
344 WWUS53 KFSD 100425 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1125 PM CDT SAT APR 9 2011 MNC063-105-100500- /O.CON.KFSD.SV.W.0046.000000T0000Z-110410T0500Z/ NOBLES MN-JACKSON MN- 1125 PM CDT SAT APR 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN JACKSON AND EASTERN NOBLES COUNTIES UNTIL MIDNIGHT CDT... AT 1125 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR WORTHINGTON...MOVING EAST AT 60 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BREWSTER AND ROUND LAKE AROUND 1130 PM CDT... HERON LAKE AROUND 1140 PM CDT... OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OKABENA. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4383 9531 4351 9532 4350 9587 4372 9590 TIME...MOT...LOC 0425Z 258DEG 53KT 4363 9559 WIND...HAIL <58MPH 1.00IN $$ CJ
973 WWUS53 KFSD 100437 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1137 PM CDT SAT APR 9 2011 MNC063-105-100447- /O.CAN.KFSD.SV.W.0046.000000T0000Z-110410T0500Z/ NOBLES MN-JACKSON MN- 1137 PM CDT SAT APR 9 2011 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN JACKSON AND EASTERN NOBLES 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...HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4383 9531 4351 9532 4350 9587 4372 9590 TIME...MOT...LOC 0437Z 258DEG 53KT 4364 9534 $$ CJ
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Lyon, Murray, Pipestone | 50 min |
| Apr 9, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Pipestone, Rock | 43 min |
| Apr 9, 9:45 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 30 min |
| Apr 9, 9:54 PM CDT | Severe Thunderstorm Warning | FSD | Murray, Nobles, Pipestone, Rock | 51 min |
| Apr 10, 3:12 AM CDT | River Flood Warning | FSD | Lyon | 55 hr |
| Apr 10, 10:42 AM CDT | River Flood Warning | FSD | Lyon | 22 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
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.