Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 154, NWS Twin Cities, MN

July 10, 2008Carver County, McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2008, 12:04 PM CDT for Carver County, McLeod County, Minnesota. It was in force for 56 min. 8 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, 2008, 12:04 PM CDT (17:04 UTC)
Expired
Jul 10, 2008, 1:00 PM CDT
In force
56 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Carver County, MN, McLeod County, MN

The radar

The Minneapolis radar (KMPX), 39 km from the middle of the area, began a volume at 16:58 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, 12:06 PM CDTHAIL 1.25Winsted, MN
Jul 10, 12:15 PM CDTHAIL 0.88Winsted, MN
Jul 10, 12:19 PM CDTHAIL 0.88Winsted, MN
Jul 10, 12:20 PM CDTHAIL 1Winsted, MN
Jul 10, 12:20 PM CDTHAIL 31 Ssw Winsted, MN
Jul 10, 12:25 PM CDTHAIL 0.881 Sw Lester Prairie, MN
Jul 10, 12:25 PM CDTHAIL 0.88New Germany, MN
Jul 10, 12:25 PM CDTHAIL 1.75Lester Prairie, MNPOWER LINES AND TREES ALSO FELLED.

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, 5.1 hours before the alert went out and 36 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 2008-07-10Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2008-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
1956 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
100 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.

000 
WUUS53 KMPX 101704
SVRMPX
MNC019-085-101800-
/O.NEW.KMPX.SV.W.0154.080710T1704Z-080710T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1204 PM CDT THU JUL 10 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCLEOD COUNTY IN CENTRAL MINNESOTA...
  SOUTHWESTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 100 PM CDT

* AT 1202 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 65 MPH. 
  THIS STORM WAS LOCATED 5 MILES NORTHWEST OF SILVER LAKE...OR ABOUT
  8 MILES NORTHEAST OF HUTCHINSON...AND MOVING SOUTHEAST AT 43 MPH.

* SOME LOCATIONS INCLUDE...
  BISCAY...
  SILVER LAKE...
  WINSTED...
  GLENCOE...
  LESTER PRAIRIE...
  NEW GERMANY...
  NORWOOD/YOUNG AMERICA...
  COLOGNE...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR SOUTHWESTERN MINNESOTA.

LAT...LON 4472 9389 4472 9401 4478 9449 4492 9450
      4498 9435 4497 9401 4480 9377 4468 9376
      4468 9389
TIME...MOT...LOC 1704Z 295DEG 37KT 4496 9422

$$

TRH
1 follow-up statement
000 
WWUS53 KMPX 101736
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1236 PM CDT THU JUL 10 2008

MNC085-101746-
/O.CAN.KMPX.SV.W.0154.000000T0000Z-080710T1800Z/
MCLEOD MN-
1236 PM CDT THU JUL 10 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCLEOD COUNTY IS
CANCELLED...

RADAR INDICATED THAT THE SEVERE STORM HAD WEAKENED OR MOVED OUT OF
THE WARNED AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

LAT...LON 4472 9389 4471 9391 4472 9400 4473 9401
      4497 9401 4480 9377 4468 9376 4468 9389
TIME...MOT...LOC 1736Z 298DEG 44KT 4478 9377

$$

MNC019-101800-
/O.CON.KMPX.SV.W.0154.000000T0000Z-080710T1800Z/
CARVER MN-
1236 PM CDT THU JUL 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR SOUTHWESTERN CARVER COUNTY...

AT 1232 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN
EXCESS OF 70 MPH.  THE SEVERE STORM WAS LOCATED 3 MILES NORTHWEST OF
COLOGNE...AND MOVING SOUTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE NORWOOD/YOUNG AMERICA...NEW
GERMANY...HAMBURG AND COLOGNE.

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.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4472 9389 4471 9391 4472 9400 4473 9401
      4497 9401 4480 9377 4468 9376 4468 9389
TIME...MOT...LOC 1736Z 298DEG 44KT 4478 9377

$$

TRH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 8:21 AM CDTSevere Thunderstorm WarningMPXStevens54 min
Jul 10, 9:25 AM CDTSevere Thunderstorm WarningMPXDouglas48 min
Jul 10, 11:55 AM CDTSevere Thunderstorm WarningMPXCarver, Meeker, Wright50 min
Jul 10, 12:11 PM CDTAreal Flood AdvisoryMPXDakota, Hennepin2 hr
Jul 10, 12:17 PM CDTSevere Thunderstorm WarningMPXCarver, Hennepin, Scott43 min
Jul 10, 12:46 PM CDTSevere Thunderstorm WarningMPXDakota, Washington44 min
Jul 10, 12:56 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey, Scott, Washington49 min
Jul 10, 1:03 PM CDTSevere Thunderstorm WarningMPXDakota, Rice57 min
Jul 10, 1:15 PM CDTTornado WarningMPXDakota30 min
Jul 10, 1:24 PM CDTSevere Thunderstorm WarningMPXGoodhue41 min
Jul 10, 1:27 PM CDTSevere Thunderstorm WarningMPXScott33 min
Jul 10, 1:35 PM CDTTornado WarningMPXGoodhue25 min
Jul 10, 2:00 PM CDTSevere Thunderstorm WarningMPXGoodhue15 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008

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.