Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 265, NWS Twin Cities, MN

August 22, 2012Meeker County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 22, 2012, 1:13 PM CDT for Meeker County, Wright County, Minnesota. It was in force for 47 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
Aug 22, 2012, 1:13 PM CDT (18:13 UTC)
Expired
Aug 22, 2012, 2:00 PM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 63 km from the middle of the area, began a volume at 18:14 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
Aug 22, 1:15 PM CDTHAIL 0.5Cokato, MN
Aug 22, 1:15 PM CDTHAIL 12 S Kingston, MN
Aug 22, 1:22 PM CDTHAIL 1.254 N Dassel, MN
Aug 22, 1:24 PM CDTHAIL 0.75Nnw Kingston, MN
Aug 22, 1:25 PM CDTHAIL 15 Nnw Cokato, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.2 hours before the alert went out and 61 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 2012-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2012-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2248 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
107 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.

493 
WUUS53 KMPX 221813
SVRMPX
MNC093-171-221900-
/O.NEW.KMPX.SV.W.0265.120822T1813Z-120822T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
113 PM CDT WED AUG 22 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 200 PM CDT

* AT 109 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 9 MILES EAST OF
  LITCHFIELD...AND MOVING EAST AT 20 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  KINGSTON.
  FRENCH LAKE.
  WEST ALBION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4532 9408 4506 9400 4502 9441 4519 9449
TIME...MOT...LOC 1812Z 251DEG 16KT 4514 9432
WIND...HAIL <50MPH 1.00IN

$$

JLT
3 follow-up statements
835 
WWUS53 KMPX 221825
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
125 PM CDT WED AUG 22 2012

MNC093-171-221900-
/O.CON.KMPX.SV.W.0265.000000T0000Z-120822T1900Z/
MEEKER MN-WRIGHT MN-
125 PM CDT WED AUG 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN WRIGHT
AND EAST CENTRAL MEEKER COUNTIES UNTIL 200 PM CDT...

AT 123 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL.  THIS STORM
WAS LOCATED 13 MILES EAST OF LITCHFIELD...MOVING EAST AT 20 MPH.

THIS SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST
CENTRAL MEEKER AND WESTERN WRIGHT COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4504 9435 4522 9439 4532 9408 4506 9400
TIME...MOT...LOC 1825Z 259DEG 19KT 4515 9425
WIND...HAIL <50MPH 1.25IN

$$

JLT
384 
WWUS53 KMPX 221838
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
138 PM CDT WED AUG 22 2012

MNC093-221853-
/O.CAN.KMPX.SV.W.0265.000000T0000Z-120822T1900Z/
MEEKER MN-
138 PM CDT WED AUG 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MEEKER COUNTY IS
CANCELLED...

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

LAT...LON 4505 9425 4523 9426 4529 9409 4506 9400
TIME...MOT...LOC 1838Z 264DEG 18KT 4515 9416

$$

MNC171-221900-
/O.CON.KMPX.SV.W.0265.000000T0000Z-120822T1900Z/
WRIGHT MN-
138 PM CDT WED AUG 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN WRIGHT
COUNTY UNTIL 200 PM CDT...

AT 137 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING HALF DOLLAR SIZE HAIL.  THIS STORM WAS LOCATED
15 MILES WEST OF BUFFALO...OR 18 MILES EAST OF LITCHFIELD...MOVING
EAST AT 20 MPH.

IN ADDITION...AT 120 PM...HALF DOLLAR SIZE HAIL WAS REPORTED BETWEEN 
KINGSTON AND DASSEL...OR 4 MILES NORTH OF DASSEL. 

LOCATIONS IMPACTED INCLUDE...
  SMITH LAKE...ANNANDALE AND HOWARD LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4505 9425 4523 9426 4529 9409 4506 9400
TIME...MOT...LOC 1838Z 264DEG 18KT 4515 9416
WIND...HAIL <50MPH 1.25IN

$$

JLT
811 
WWUS53 KMPX 221853
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
153 PM CDT WED AUG 22 2012

MNC171-221908-
/O.EXP.KMPX.SV.W.0265.000000T0000Z-120822T1900Z/
WRIGHT MN-
153 PM CDT WED AUG 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WRIGHT COUNTY WILL
EXPIRE AT 200 PM CDT...

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 IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4505 9425 4523 9426 4529 9409 4506 9400
TIME...MOT...LOC 1853Z 264DEG 18KT 4516 9405

$$

JLT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 12:07 PM CDTSpecial Weather StatementMPXCarver, McLeod53 min
Aug 22, 1:06 PM CDTSpecial Weather StatementMPXCarver, Hennepin, Scott, Wright54 min
Aug 22, 2:01 PM CDTSpecial Weather StatementMPXHennepin, Sherburne59 min
Aug 22, 3:07 PM CDTSpecial Weather StatementMPXBenton, Isanti, Mille Lacs, Morrison, Sherburne38 min
Aug 22, 3:11 PM CDTSpecial Weather StatementMPXAnoka, Dakota, Hennepin, Ramsey, Washington79 min
Aug 22, 3:22 PM CDTSpecial Weather StatementMPXMcLeod, Meeker53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012

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.