Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 127, NWS Twin Cities, MN

July 10, 2011Kandiyohi County, Meeker County, Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2011, 8:11 PM CDT for Kandiyohi County, Meeker County, Stearns County, Minnesota. It was in force for 64 min. 5 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 10, 2011, 8:11 PM CDT (01:11 UTC)
Expired
Jul 10, 2011, 9:15 PM CDT
In force
64 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
80.0 mph

Counties Kandiyohi County, MN, Meeker County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 105 km from the middle of the area, began a volume at 01:11 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 10, 8:47 PM CDTTORNADO5 N Atwater, MNESTIMATED LOCATION AND TIME. MULTIPLE REPORTS OF A TORNADO ON THE GROUND IN THIS AREA. A DETAILED ACCOUNT INDICATED THIS WAS IN THE MIDDLE OF A FIELD THAT WAS UNREACHABLE TO THE SURVEY TEAM.
Jul 10, 8:48 PM CDTTORNADO6 Nw Grove City, MNESTIMATED LOCATION. MULTIPLE REPORTS OF A TORNADO ON THE GROUND SIGHTED FROM GROVE CITY. RADAR INDICATES THAT AERAS OF ROTATION WERE NORTHWEST OF GROVE CITY AND NOT ACTUALLY IN THE TOWN. NEITHER COUNTY HAS REPORTED ANY DAMAGE IN THAT GENERAL AREA. AN NWS STORM
Jul 10, 8:48 PM CDTTORNADOGrove City, MNON THE GROUND.
Jul 10, 8:55 PM CDTTSTM WND GST 624 Ene Albany, MNTREES DOWN LARGE BRANCHES
Jul 10, 9:04 PM CDTTSTM WND DMGWatkins, MNA FEW LARGE TREES DOWN.

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 10, 6:12 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.2 hours before the alert went out and 103 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 00:00Z on 2011-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1401 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 00:00Z on 2011-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.19395878Sfc1 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
1401 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1316 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

114 
WUUS53 KMPX 110111
SVRMPX
MNC067-093-145-110215-
/O.NEW.KMPX.SV.W.0127.110711T0111Z-110711T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
811 PM CDT SUN JUL 10 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  NORTHERN MEEKER COUNTY IN CENTRAL MINNESOTA...
  CENTRAL STEARNS COUNTY IN CENTRAL MINNESOTA...

* UNTIL 915 PM CDT

* AT 806 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN
  EXCESS OF 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE           
  EXTENDING FROM SAUK CENTRE TO KERKHOVEN...AND MOVING EAST AT 40    
  MPH. CONTINUE TO STAY ALERT FOR POSSIBLE TORNADO WARNINGS.

LOCATIONS IN THE WARNING INCLUDE...
  SUNBURG...
  NEW LONDON...
  SPICER...
  HAWICK...
  PAYNESVILLE...
  ALBANY...
  FARMING...
  ROSCOE...
  HOLDINGFORD...
  MANANNAH...
  AVON...
  RICHMOND...
  GROVE CITY...
  EDEN VALLEY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. 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.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4577 9427 4574 9426 4523 9426 4518 9425
      4515 9427 4515 9525 4532 9525 4541 9523
      4541 9475 4578 9464
TIME...MOT...LOC 0111Z 290DEG 33KT 4573 9500 4522 9528
WIND...HAIL 80MPH 1.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:13 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Stevens, Swift62 min
Jul 10, 7:25 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Swift and 1 more50 min
Jul 10, 7:36 PM CDTTornado WarningMPXKandiyohi, Pope, Stearns39 min
Jul 10, 7:40 PM CDTTornado WarningMPXLac qui Parle35 min
Jul 10, 7:42 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd63 min
Jul 10, 7:48 PM CDTSevere Thunderstorm WarningMPXYellow Medicine57 min
Jul 10, 7:57 PM CDTTornado WarningMPXSwift33 min
Jul 10, 8:04 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Lac qui Parle, Renville, Yellow Medicine56 min
Jul 10, 8:24 PM CDTAreal Flood AdvisoryMPXBenton, Douglas, Kandiyohi, Morrison, Pope, Sherburne and 3 more3 hr
Jul 10, 8:29 PM CDTSevere Thunderstorm WarningMPXMorrison46 min
Jul 10, 8:36 PM CDTTornado WarningMPXKandiyohi, Meeker24 min
Jul 10, 8:40 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Redwood, Renville, Yellow Medicine65 min
Jul 10, 8:45 PM CDTSevere Thunderstorm WarningMPXStearns30 min
Jul 10, 8:52 PM CDTTornado WarningMPXChippewa, Renville38 min
Jul 10, 9:06 PM CDTSevere Thunderstorm WarningMPXMeeker, Sherburne, Stearns, Wright54 min
Jul 10, 9:20 PM CDTSevere Thunderstorm WarningMPXBrown, McLeod, Nicollet, Redwood, Renville, Sibley55 min
Jul 10, 9:30 PM CDTSpecial Weather StatementMPXBlue Earth, Faribault, Freeborn, Le Sueur, Martin, Rice and 3 more75 min
Jul 10, 9:33 PM CDTSpecial Weather StatementMPXBenton42 min
Jul 10, 9:37 PM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Hennepin, Sherburne, Wright53 min
Jul 10, 9:46 PM CDTSpecial Weather StatementMPXDakota, Ramsey, Scott, Washington74 min
Jul 10, 10:09 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Le Sueur, McLeod, Nicollet, Scott and 2 more66 min
Jul 10, 10:10 PM CDTTornado WarningMPXMcLeod, Sibley23 min
Jul 10, 10:17 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Dakota, Hennepin, Ramsey, Washington58 min
Jul 10, 10:48 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Carver, Le Sueur, Rice, Scott, Steele and 1 more57 min
Jul 10, 11:02 PM CDTSpecial Weather StatementMPXFaribault, Freeborn, Martin58 min
Jul 10, 11:13 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Rice, Steele47 min
Jul 10, 11:39 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue51 min
Jul 11, 1:34 AM CDTSpecial Weather StatementMPXFaribault, Martin56 min
Jul 11, 2:11 AM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn64 min
Jul 11, 3:20 AM CDTAreal Flood AdvisoryMPXMartin3 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.