Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 93, NWS Sioux Falls, SD

May 30, 20114 counties in Minnesota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 30, 2011, 2:16 AM CDT for 4 counties in Minnesota. It was in force for 44 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: May 30, 2011, 2:16 AM CDT (07:16 UTC)
Expired: May 30, 2011, 3:00 AM CDT
In force: 44 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.25 in
Wind: 58.0 mph

Counties Cottonwood County, MN, Jackson County, MN, Murray County, MN, Nobles County, MN

The radar

The Sioux Falls radar (KFSD), 120 km from the middle of the area, began a volume at 07:20 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
May 29, 10:58 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 7.3 hours before the alert went out and 170 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2019 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 532 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

582 
WUUS53 KFSD 300716
SVRFSD
MNC033-063-101-105-300800-
/O.NEW.KFSD.SV.W.0093.110530T0716Z-110530T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
216 AM CDT MON MAY 30 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COTTONWOOD COUNTY IN SOUTHWEST MINNESOTA...
  NORTHWESTERN JACKSON COUNTY IN SOUTHWEST MINNESOTA...
  SOUTHEASTERN MURRAY COUNTY IN SOUTHWEST MINNESOTA...
  EASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 300 AM CDT

* AT 216 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR
  SIZE HAIL.  THIS STORM WAS LOCATED 7 MILES NORTH OF WORTHINGTON...
  AND MOVING NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FULDA AROUND 225 AM CDT...
  HERON LAKE AROUND 230 AM CDT...
  WESTBROOK AROUND 245 AM CDT...
  STORDEN AROUND 250 AM CDT...
  JEFFERS AROUND 255 AM CDT...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE KINBRAE
AND DUNDEE.

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 4350 9571 4375 9590 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0716Z 219DEG 41KT 4374 9559
WIND...HAIL <58MPH 1.25IN

$$

BT

5 follow-up statements

512 
WWUS53 KFSD 300725
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
225 AM CDT MON MAY 30 2011

MNC033-063-101-105-300800-
/O.CON.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN-
225 AM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NOBLES...
SOUTHEASTERN MURRAY...NORTHWESTERN JACKSON AND COTTONWOOD COUNTIES
UNTIL 300 AM CDT...

AT 225 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL. 
THIS STORM WAS LOCATED 7 MILES NORTHWEST OF BREWSTER...OR 10 MILES
NORTH OF WORTHINGTON...MOVING NORTHEAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HERON LAKE AROUND 230 AM CDT...
  STORDEN AND WESTBROOK AROUND 245 AM CDT...
  JEFFERS AROUND 255 AM CDT...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE DUNDEE.

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 4350 9571 4375 9590 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0725Z 219DEG 41KT 4382 9550
WIND...HAIL <58MPH 1.25IN

$$

BT

709 
WWUS53 KFSD 300730
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
230 AM CDT MON MAY 30 2011

MNC033-063-101-105-300800-
/O.CON.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN-
230 AM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NOBLES...
SOUTHEASTERN MURRAY...NORTHWESTERN JACKSON AND COTTONWOOD COUNTIES
UNTIL 300 AM CDT...

AT 228 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
TWO SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED NEAR BREWSTER...OR 9 MILES NORTHEAST OF 
WORTHINGTON...MOVING NORTHEAST AT 45 MPH. THE SECOND STORM WAS 
LOCATED NEAR FULDA AND WAS MOVING NORTHEAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  STORDEN AND WESTBROOK AROUND 245 AM CDT...
  JEFFERS AROUND 250 AM 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 4350 9571 4375 9590 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0728Z 213DEG 43KT 4379 9547
WIND...HAIL <58MPH 1.75IN

$$

BT

357 
WWUS53 KFSD 300735
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
235 AM CDT MON MAY 30 2011

MNC033-063-101-105-300800-
/O.CON.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN-
235 AM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NOBLES...
SOUTHEASTERN MURRAY...NORTHWESTERN JACKSON AND COTTONWOOD COUNTIES
UNTIL 300 AM CDT...

AT 236 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED 6 MILES NORTHWEST OF HERON LAKE...OR 15 MILES WEST
OF WINDOM...MOVING NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WESTBROOK AROUND 245 AM CDT...
  STORDEN AROUND 250 AM CDT...
  JEFFERS AROUND 255 AM 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 4350 9571 4375 9590 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0736Z 213DEG 43KT 4387 9539
WIND...HAIL <58MPH 1.75IN

$$

BT

335 
WWUS53 KFSD 300741
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
241 AM CDT MON MAY 30 2011

MNC101-105-300751-
/O.CAN.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
MURRAY MN-NOBLES MN-
241 AM CDT MON MAY 30 2011

...THE SEVERE THUNDERSTORM WARNING FOR NOBLES AND SOUTHEASTERN MURRAY
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4371 9541 4401 9545 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0741Z 213DEG 43KT 4392 9534

$$

MNC033-063-300800-
/O.CON.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
COTTONWOOD MN-JACKSON MN-
241 AM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
JACKSON AND COTTONWOOD COUNTIES UNTIL 300 AM CDT...

AT 241 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED 7 MILES NORTH OF HERON LAKE...OR 13 MILES WEST OF
WINDOM...MOVING NORTHEAST AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  STORDEN AROUND 250 AM CDT...
  JEFFERS AROUND 255 AM 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 4371 9541 4401 9545 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0741Z 213DEG 43KT 4392 9534
WIND...HAIL <58MPH 1.75IN

$$

BT

321 
WWUS53 KFSD 300804
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
304 AM CDT MON MAY 30 2011

MNC033-063-300814-
/O.EXP.KFSD.SV.W.0093.000000T0000Z-110530T0800Z/
COTTONWOOD MN-JACKSON MN-
304 AM CDT MON MAY 30 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN JACKSON AND 
COTTONWOOD COUNTIES HAS BEEN REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

LAT...LON 4371 9541 4401 9545 4421 9529 4420 9520
      4414 9509 4412 9508 4412 9504 4404 9491
TIME...MOT...LOC 0741Z 213DEG 43KT 4392 9534

$$

BT

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 2:55 AM CDT	Severe Thunderstorm Warning	FSD	Cottonwood	35 min
May 30, 4:35 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon	40 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011 Every 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.