Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 155, NWS Twin Cities, MN

July 10, 2008Carver County, Hennepin County, Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2008, 12:17 PM CDT for Carver County, Hennepin County, Scott County, Minnesota. It was in force for 43 min. 24 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, 12:17 PM CDT (17:17 UTC)
Expired
Jul 10, 2008, 1:00 PM CDT
In force
43 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Carver County, MN, Hennepin County, MN, Scott County, MN

What was reported inside it

TimeReportWhereRemark
Jul 10, 12:24 PM CDTHAIL 1.252 Ssw Minnetonka, MN
Jul 10, 12:36 PM CDTHAIL 1Shakopee, MN
Jul 10, 12:38 PM CDTHAIL 0.883 Ene Waconia, MN
Jul 10, 12:41 PM CDTHAIL 0.754 Nw Excelsior, MNREPORTED IN STUBBS BAY AREA OF LAKE MINNETONKA.
Jul 10, 12:42 PM CDTTSTM WND GST 59Chanhassen, MNMEASURED WITH ANEMOMETER. NICKEL SIZE HAIL ALSO REPORTED.
Jul 10, 12:42 PM CDTTSTM WND GST 59.7Chanhassen, MNMEASURED WITH ANEMOMETER. NICKEL SIZE HAIL ALSO REPORTED.
Jul 10, 12:43 PM CDTHAIL 0.75Long Lake, MN
Jul 10, 12:45 PM CDTTSTM WND DMGMinnetonka, MNAROUND 6 BRANCHES UP TO 2 FEET IN DIAMETER DOWNED ON ROADWAYS IN TOWN. TIME IS ESTIMATED.
Jul 10, 12:45 PM CDTHAIL 0.75Minnetonka, MN
Jul 10, 12:48 PM CDTTSTM WND DMG4 Ssw Excelsior, MNNUMEROUS LARGE BRANCHES DOWNED AT HIGHWAY 7 AND MINNEWASHKA PARK.
Jul 10, 12:50 PM CDTHAIL 0.75Chaska, MN
Jul 10, 12:51 PM CDTTSTM WND GST 593 Ssw Eden Prairie, MN59 MPH WIND GUST MEASURED AT FLYING CLOUD AIRPORT.
Jul 10, 12:54 PM CDTHAIL 0.75Eden Prairie, MNOCCURRED AT PRAIRIE CENTER DRIVE AND HIGHWAY 5.
Jul 10, 12:55 PM CDTTSTM WND DMG2 N Bloomington, MNCONSTRUCTION SCAFFOLDING ON BUILDING TOPPLED AT 494 AND XERXES AVE.
Jul 10, 12:55 PM CDTTSTM WND DMG3 W Burnsville, MNTREE ON HOUSE AT LYNN AVE IN SAVAGE. SEVERAL LARGE TREES DOWN IN THE NORTHERN PORTION OF SAVAGE.
Jul 10, 12:55 PM CDTHAIL 0.75Eden Prairie, MN
Jul 10, 12:58 PM CDTTSTM WND DMG3 Wsw Marystown, MNLARGE TREE TOPPLED.
Jul 10, 12:58 PM CDTHAIL 0.88Richfield, MN
Jul 10, 1:00 PM CDTHAIL 0.752 Nne Bloomington, MN
Jul 10, 1:00 PM CDTHAIL 0.753 Nw Bloomington, MNOCCURRED AT HIGHWAY 100 AND HENNEPIN CO.
Jul 10, 1:02 PM CDTTSTM WND DMG4 N Burnsville, MNSEVERAL TREES TOPPLED, SMALLEST SIX INCHES IN DIAMETER. OCCURRED AT 98TH AND OLD SHAKOPEE RD, THROUGH 91ST.
Jul 10, 1:03 PM CDTHAIL 11 Se Prior Lake, MN
Jul 10, 1:10 PM CDTTSTM WND DMGBloomington, MNTWO AND ONE HALF FOOT TREES TOPPLED. OCCURRED AT 494 AND XERXES AVE.
Jul 10, 1:10 PM CDTHAIL 0.75Prior Lake, 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 10, 12:06 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.3 hours before the alert went out and 18 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 101718
SVRMPX
MNC019-053-139-101800-
/O.NEW.KMPX.SV.W.0155.080710T1717Z-080710T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1217 PM CDT THU JUL 10 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  EASTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHEASTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 100 PM CDT

* AT 1215 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND DAMAGING
  WINDS IN EXCESS OF 65 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTHWEST OF ROCKFORD...OR ABOUT 28 MILES WEST OF MINNEAPOLIS...AND
  MOVING SOUTHEAST AT 43 MPH.

* SOME LOCATIONS INCLUDE...
  ROCKFORD...
  HANOVER...
  INDEPENDENCE...
  ROGERS...
  LORETTO...
  MAPLE PLAIN...
  CORCORAN...
  MOUND...
  DAYTON...
  VICTORIA...
  MAPLE GROVE...
  MINNEAPOLIS..

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 WILL UPROOT TREES AND DOWN POWER LINES.
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. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 600 PM CDT THURSDAY EVENING FOR
SOUTHEASTERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4468 9377 4508 9377 4516 9365 4521 9364
      4523 9354 4522 9343 4514 9331 4504 9328
      4503 9322 4491 9320 4489 9316 4479 9333
      4463 9334
TIME...MOT...LOC 1717Z 296DEG 38KT 4502 9380

$$

TRH
1 follow-up statement
000 
WWUS53 KMPX 101731
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1228 PM CDT THU JUL 10 2008

MNC019-053-139-101800-
/O.CON.KMPX.SV.W.0155.000000T0000Z-080710T1800Z/
HENNEPIN MN-CARVER MN-SCOTT MN-
1228 PM CDT THU JUL 10 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR NORTHEASTERN SCOTT...SOUTHEASTERN CARVER AND HENNEPIN COUNTIES...

AT 1225 PM CDT...NICKEL SIZE HAIL WAS REPORTED IN DELANO. GOLF BALL 
SIZE HAIL WAS REPORTED IS LESTER PRAIRIE. 

AT 1223 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THE SEVERE STORM WAS LOCATED
NEAR INDEPENDENCE...OR ABOUT 2 MILES SOUTH OF INDEPENDENCE...AND
MOVING SOUTHEAST AT 44 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE 
WOODLAND...WAYZATA...SHOREWOOD...ORONO...MOUND...MINNETONKA...
MINNETRISTA...MEDICINE LAKE...MARYSTOWN AND HAMEL.

THIS IS A VERY DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS AND HAIL...WHICH
WILL UPROOT TREES...DOWN POWER LINES...AND PRODUCE WIDESPREAD DAMAGE
TO BUILDINGS AND VEHICLES. EVACUATE MOBILE HOMES AS THEY MAY BE
OVERTURNED. 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 4468 9377 4508 9377 4516 9365 4521 9364
      4523 9354 4522 9343 4514 9331 4504 9328
      4503 9322 4491 9320 4489 9316 4479 9333
      4463 9334
TIME...MOT...LOC 1728Z 296DEG 38KT 4497 9365

$$

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, 12:04 PM CDTSevere Thunderstorm WarningMPXCarver, McLeod56 min
Jul 10, 12:11 PM CDTAreal Flood AdvisoryMPXDakota, Hennepin2 hr
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.