Alert archive / Minnesota / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 252, NWS Twin Cities, MN

September 2, 20104 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 2, 2010, 12:13 AM CDT for 4 counties in Minnesota. It was in force for 47 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
Sep 2, 2010, 12:13 AM CDT (05:13 UTC)
Expired
Sep 2, 2010, 1:00 AM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Douglas County, MN, Pope County, MN, Stearns County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 148 km from the middle of the area, began a volume at 05:13 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.2 hours before the alert went out and 146 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 2010-09-02Temperature 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 00:00Z on 2010-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1847 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
83 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.

050 
WUUS53 KMPX 020513
SVRMPX
MNC041-121-145-153-020600-
/O.NEW.KMPX.SV.W.0252.100902T0513Z-100902T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1213 AM CDT THU SEP 2 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN TODD COUNTY IN CENTRAL MINNESOTA...
  SOUTHEASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  WESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  EASTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 100 AM CDT

* AT 1208 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 3 MILES NORTHEAST
  OF FORADA TO 4 MILES WEST OF SEDAN TO 8 MILES SOUTHWEST OF
  GILCHRIST...AND MOVING EAST AT 35 MPH.  PENNY SIZE HAIL MAY ALSO
  ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IN THE WARNING INCLUDE...
  SAUK CENTRE...
  SEDAN...
  GILCHRIST...
  GROVE LAKE...
  WESTPORT...
  OSAKIS...
  WEST UNION...
  BROOTEN...
  PADUA...
  LITTLE SAUK...
  ELROSA...
  BELGRADE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4596 9465 4562 9470 4542 9479 4541 9545
      4542 9551 4556 9542 4590 9538
TIME...MOT...LOC 0512Z 263DEG 28KT 4582 9525 4557 9528
          4539 9541
WIND...HAIL 60MPH 0.75IN

$$
1 follow-up statement
828 
WWUS53 KMPX 020541
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1241 AM CDT THU SEP 2 2010

MNC041-121-020551-
/O.CAN.KMPX.SV.W.0252.000000T0000Z-100902T0600Z/
DOUGLAS MN-POPE MN-
1241 AM CDT THU SEP 2 2010

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN POPE AND SOUTHEASTERN
DOUGLAS COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4542 9513 4573 9510 4591 9507 4596 9465
      4562 9470 4542 9479
TIME...MOT...LOC 0541Z 263DEG 28KT 4585 9493 4560 9496
          4542 9509

$$

MNC145-153-020600-
/O.CON.KMPX.SV.W.0252.000000T0000Z-100902T0600Z/
TODD MN-STEARNS MN-
1241 AM CDT THU SEP 2 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
STEARNS AND SOUTHERN TODD COUNTIES UNTIL 100 AM CDT...

AT 1240 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7
MILES NORTH OF SAUK CENTRE TO 10 MILES SOUTH OF SAUK CENTRE TO 19
MILES WEST OF PAYNESVILLE...MOVING EAST AT 30 MPH. PENNY SIZE HAIL
MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  ELROSA...BELGRADE...MEIRE GROVE...GREENWALD...MELROSE...
  GEORGEVILLE...GREY EAGLE...GREY EALGE...SPRING HILL...NORTH
  SHORE...PLEASANT BEACH...NEW MUNICH...ST ROSA...BURTRUM AND LAKE
  HENRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4542 9513 4573 9510 4591 9507 4596 9465
      4562 9470 4542 9479
TIME...MOT...LOC 0541Z 263DEG 28KT 4585 9493 4560 9496
          4542 9509
WIND...HAIL 60MPH 0.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 10:25 PM CDTSpecial Weather StatementMPXStevens65 min
Sep 1, 10:54 PM CDTSpecial Weather StatementMPXLac qui Parle66 min
Sep 1, 11:31 PM CDTSpecial Weather StatementMPXRenville44 min
Sep 2, 12:02 AM CDTSpecial Weather StatementMPXChippewa, Pope, Swift, Yellow Medicine43 min
Sep 2, 12:51 AM CDTSpecial Weather StatementMPXKandiyohi, Meeker, Redwood, Renville39 min
Sep 2, 12:54 AM CDTSpecial Weather StatementMPXBenton, Morrison, Stearns51 min
Sep 2, 1:04 AM CDTSevere Thunderstorm WarningMPXBrown, Kandiyohi, McLeod, Meeker, Redwood, Renville and 1 more41 min
Sep 2, 1:41 AM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Sherburne, Stearns34 min
Sep 2, 1:54 AM CDTSpecial Weather StatementMPXCarver, Hennepin, McLeod, Wright36 min
Sep 2, 1:57 AM CDTSpecial Weather StatementMPXBrown, Nicollet, Scott, Sibley48 min
Sep 2, 2:31 AM CDTSpecial Weather StatementMPXAnoka, Chisago, Isanti44 min
Sep 2, 2:49 AM CDTAreal Flood AdvisoryMPXRedwood3 hr
Sep 2, 3:19 PM CDTRiver Flood WatchMPXRedwood20 hr
Sep 2, 3:19 PM CDTRiver Flood WatchMPXBlue Earth, Brown, Nicollet20 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2010Every severe thunderstorm warning in 2010

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.