Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 40, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 9, 2011, 9:54 PM CDT for 4 counties in Minnesota. It was in force for 51 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 9, 2011, 9:54 PM CDT (02:54 UTC)
- Expired
- Apr 9, 2011, 10:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN
The radar
The Sioux Falls radar (KFSD), 75 km from the middle of the area, began a volume at 02:55 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 9, 10:00 PM CDT | HAIL 1 | 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 |
|---|---|---|---|
| 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, 2.9 hours before the alert went out and 212 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.
963
WUUS53 KFSD 100254
SVRFSD
MNC101-105-117-133-100345-
/O.NEW.KFSD.SV.W.0040.110410T0254Z-110410T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
954 PM CDT SAT APR 9 2011
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MURRAY COUNTY IN SOUTHWEST MINNESOTA...
NORTHERN NOBLES COUNTY IN SOUTHWEST MINNESOTA...
PIPESTONE COUNTY IN SOUTHWEST MINNESOTA...
NORTHERN ROCK COUNTY IN SOUTHWEST MINNESOTA...
* UNTIL 1045 PM CDT
* AT 955 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 TROSKY...OR 9 MILES SOUTHEAST OF PIPESTONE...AND
MOVING NORTHEAST AT 50 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
HOLLAND AROUND 1000 PM CDT...
CHANDLER AND WOODSTOCK AROUND 1005 PM CDT...
LAKE WILSON AND RUTHTON AROUND 1010 PM CDT...
CURRENT LAKE AROUND 1015 PM CDT...
SLAYTON AND FULDA AROUND 1020 PM CDT...
LAKE SHETEK STATE PARK AND CURRIE AROUND 1025 PM CDT...
DOVRAY AROUND 1030 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HADLEY.
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.
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4382 9548 4373 9624 4380 9645 4420 9646
4420 9547
TIME...MOT...LOC 0255Z 239DEG 44KT 4391 9616
WIND...HAIL 60MPH 1.00IN
$$
LIEBL3 follow-up statements
854
WWUS53 KFSD 100319
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1019 PM CDT SAT APR 9 2011
MNC101-105-117-133-100345-
/O.CON.KFSD.SV.W.0040.000000T0000Z-110410T0345Z/
PIPESTONE MN-MURRAY MN-ROCK MN-NOBLES MN-
1019 PM CDT SAT APR 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
NOBLES...NORTHERN ROCK...MURRAY AND PIPESTONE COUNTIES UNTIL 1045 PM
CDT...
AT 1020 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR TROSKY...OR 7 MILES SOUTHEAST OF
PIPESTONE...MOVING EAST AT 50 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
EDGERTON AND HOLLAND AROUND 1025 PM CDT...
WOODSTOCK AND RUTHTON AROUND 1030 PM CDT...
CHANDLER AND LAKE WILSON AROUND 1035 PM CDT...
CURRENT LAKE AROUND 1040 PM CDT...
SLAYTON AROUND 1045 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HADLEY
AND IONA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4382 9548 4373 9624 4380 9645 4420 9646
4420 9547
TIME...MOT...LOC 0320Z 259DEG 45KT 4391 9622
WIND...HAIL <58MPH 1.00IN
$$
LIEBL937
WWUS53 KFSD 100330
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1030 PM CDT SAT APR 9 2011
MNC101-105-117-133-100345-
/O.CON.KFSD.SV.W.0040.000000T0000Z-110410T0345Z/
PIPESTONE MN-MURRAY MN-ROCK MN-NOBLES MN-
1030 PM CDT SAT APR 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
NOBLES...NORTHEASTERN ROCK...MURRAY AND EASTERN PIPESTONE COUNTIES
UNTIL 1045 PM CDT...
AT 1031 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR EDGERTON...OR 10 MILES SOUTHEAST
OF PIPESTONE...MOVING EAST AT 45 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CHANDLER...LAKE WILSON AND CURRENT LAKE AROUND 1040 PM CDT...
SLAYTON AROUND 1045 PM CDT...
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HADLEY
AND IONA.
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 9547 4382 9548 4376 9604 4381 9619
4393 9624 4420 9620
TIME...MOT...LOC 0331Z 259DEG 39KT 4393 9608
WIND...HAIL <58MPH 1.00IN
$$
LIEBL001
WWUS53 KFSD 100345
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1045 PM CDT SAT APR 9 2011
MNC101-105-117-133-100355-
/O.EXP.KFSD.SV.W.0040.000000T0000Z-110410T0345Z/
PIPESTONE MN-MURRAY MN-ROCK MN-NOBLES MN-
1045 PM CDT SAT APR 9 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN NOBLES...NORTHEASTERN
ROCK...MURRAY AND EASTERN PIPESTONE COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.
LAT...LON 4420 9547 4382 9548 4376 9604 4381 9619
4393 9624 4420 9620
TIME...MOT...LOC 0330Z 259DEG 39KT 4393 9609
$$
LIEBLThe 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, 11:16 PM CDT | Severe Thunderstorm Warning | FSD | Jackson, Nobles | 21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.