Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 93, NWS Twin Cities, MN

July 1, 2011Meeker County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 1, 2011, 4:31 PM CDT for Meeker County, Wright County, Minnesota. It was in force for 59 min. 9 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
Jul 1, 2011, 4:31 PM CDT (21:31 UTC)
Expired
Jul 1, 2011, 5:30 PM CDT
In force
59 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 71 km from the middle of the area, began a volume at 21:31 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

TimeReportWhereRemark
Jul 1, 5:02 PM CDTHAIL 2.752 S Dassel, MN
Jul 1, 5:03 PM CDTHAIL 1.75Darwin, MN
Jul 1, 5:09 PM CDTHAIL 12 Se Dassel, MN
Jul 1, 5:12 PM CDTHAIL 1Dassel, MN
Jul 1, 5:15 PM CDTHAIL 22 S Dassel, MN
Jul 1, 5:17 PM CDTHAIL 4.254 Sw Dassel, MNVIA SPOTTER NETWORK
Jul 1, 5:40 PM CDTHAIL 1Dassel, MN
Jul 1, 5:40 PM CDTHAIL 1.75Darwin, MN
Jul 1, 5:40 PM CDTHAIL 24 S Dassel, 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.

IssuedProductOfficeLasted
Jul 1, 2:08 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 69 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2011-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3970 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2011-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
3970 J/kg
Mixed-layer CIN
-245 J/kg
Mixed-layer LCL
1089 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

738 
WUUS53 KMPX 012131
SVRMPX
MNC093-171-012230-
/O.NEW.KMPX.SV.W.0093.110701T2131Z-110701T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
431 PM CDT FRI JUL 1 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MEEKER COUNTY IN CENTRAL MINNESOTA...
  SOUTHWESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...

* UNTIL 530 PM CDT

* AT 427 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
  THIS STORM WAS LOCATED NEAR CEDAR MILLS...OR ABOUT 9 MILES
  NORTHWEST OF HUTCHINSON...AND MOVING NORTHEAST AT 35 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  LITCHFIELD...
  CEDAR MILLS...
  CORVUSO...
  DARWIN...
  DASSEL...
  COKATO...
  HOWARD LAKE...
  WATKINS...
  WAVERLY...
  MONTROSE...
  SOUTH HAVEN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

&&

LAT...LON 4529 9438 4528 9436 4529 9427 4531 9425
      4531 9419 4507 9389 4498 9426 4498 9449
      4492 9450 4490 9458 4496 9468 4533 9441
      4532 9438
TIME...MOT...LOC 2132Z 222DEG 32KT 4498 9449
WIND...HAIL 60MPH 1.00IN

$$

JLT
3 follow-up statements
600 
WWUS53 KMPX 012142
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
442 PM CDT FRI JUL 1 2011

MNC093-171-012230-
/O.CON.KMPX.SV.W.0093.000000T0000Z-110701T2230Z/
MEEKER MN-WRIGHT MN-
442 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT AND EASTERN MEEKER COUNTIES UNTIL 530 PM CDT...

AT 440 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES NORTHEAST
OF CEDAR MILLS...OR 8 MILES SOUTHEAST OF LITCHFIELD...MOVING
NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  LITCHFIELD...DARWIN...DASSEL...COKATO...HOWARD LAKE...WAVERLY...
  WATKINS...MONTROSE...SOUTH HAVEN...STOCKHOLM...SMITH LAKE AND
  KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

&&

LAT...LON 4529 9438 4528 9436 4529 9427 4531 9425
      4531 9419 4507 9389 4498 9426 4498 9449
      4492 9450 4490 9458 4496 9468 4533 9441
      4532 9438
TIME...MOT...LOC 2142Z 217DEG 32KT 4503 9445
WIND...HAIL 60MPH 1.00IN

$$

JLT
083 
WWUS53 KMPX 012154
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
454 PM CDT FRI JUL 1 2011

MNC093-171-012230-
/O.CON.KMPX.SV.W.0093.000000T0000Z-110701T2230Z/
MEEKER MN-WRIGHT MN-
454 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT AND EASTERN MEEKER COUNTIES UNTIL 530 PM CDT...

AT 450 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR DARWIN...OR 7 MILES
EAST OF LITCHFIELD...MOVING NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  COKATO...HOWARD LAKE...WAVERLY...WATKINS...MONTROSE...SOUTH
  HAVEN...SMITH LAKE AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

&&

LAT...LON 4529 9438 4528 9436 4529 9427 4531 9425
      4531 9419 4507 9389 4498 9426 4498 9449
      4492 9450 4490 9458 4496 9468 4533 9441
      4532 9438
TIME...MOT...LOC 2154Z 217DEG 32KT 4512 9436
WIND...HAIL 60MPH 1.00IN

$$

JLT
150 
WWUS53 KMPX 012203
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
503 PM CDT FRI JUL 1 2011

MNC093-171-012230-
/O.CON.KMPX.SV.W.0093.000000T0000Z-110701T2230Z/
MEEKER MN-WRIGHT MN-
503 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT AND EASTERN MEEKER COUNTIES UNTIL 530 PM CDT...

AT 500 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR DASSEL...OR 12 MILES
EAST OF LITCHFIELD...MOVING NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  WAVERLY...MONTROSE...WATKINS...SOUTH HAVEN AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS
ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

&&

LAT...LON 4529 9438 4528 9436 4529 9427 4531 9425
      4531 9419 4507 9389 4498 9426 4498 9449
      4492 9450 4490 9458 4496 9468 4533 9441
      4532 9438
TIME...MOT...LOC 2203Z 208DEG 30KT 4514 9426
WIND...HAIL 60MPH 1.75IN

$$

JLT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 4:05 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood, Renville, Yellow Medicine55 min
Jul 1, 4:37 PM CDTTornado WarningMPXRedwood, Renville23 min
Jul 1, 4:53 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Redwood, Renville, Sibley67 min
Jul 1, 4:57 PM CDTTornado WarningMPXRedwood, Renville33 min
Jul 1, 4:59 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns61 min
Jul 1, 5:13 PM CDTSevere Thunderstorm WarningMPXKandiyohi, McLeod, Meeker, Renville, Sibley, Stearns and 1 more62 min
Jul 1, 5:27 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti, Sherburne, Wright48 min
Jul 1, 5:38 PM CDTSevere Thunderstorm WarningMPXBenton, Kanabec, Mille Lacs, Morrison67 min
Jul 1, 5:52 PM CDTSevere Thunderstorm WarningMPXAnoka, Benton, Hennepin, Isanti, Meeker, Mille Lacs and 3 more53 min
Jul 1, 6:02 PM CDTSpecial Weather StatementMPXCarver, Hennepin, Scott43 min
Jul 1, 6:16 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns29 min
Jul 1, 6:20 PM CDTTornado WarningMPXBenton, Sherburne, Stearns25 min
Jul 1, 6:27 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Isanti, Kanabec, Mille Lacs63 min
Jul 1, 6:42 PM CDTSevere Thunderstorm WarningMPXAnoka, Benton, Chisago, Hennepin, Isanti, Kanabec and 5 more63 min
Jul 1, 6:42 PM CDTSevere Thunderstorm WarningMPXMartin33 min
Jul 1, 6:56 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet34 min

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.