Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 80, NWS Twin Cities, MN

May 31, 2008Dakota County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 31, 2008, 7:00 PM CDT for Dakota County, Minnesota. It was in force for 44 min. 1 report 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
May 31, 2008, 7:00 PM CDT (00:00 UTC)
Expired
May 31, 2008, 7:44 PM CDT
In force
44 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

County Dakota County, MN

The radar

The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 00:01 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
May 31, 7:10 PM CDTHAIL 0.753 Sw Vermillion, MNOCCURED IN EMPIRE.

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
May 31, 2:51 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.0 hours before the alert went out and 59 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 2008-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.193958Sfc1 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
137 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
2074 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 010001
SVRMPX
MNC037-010100-
/O.NEW.KMPX.SV.W.0080.080601T0000Z-080601T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
700 PM CDT SAT MAY 31 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 800 PM CDT

* AT 656 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 65 MPH.  THIS STORM WAS LOCATED 6 MILES NORTH OF FARMINGTON...OR
  ABOUT 2 MILES EAST OF APPLE VALLEY...AND MOVING SOUTHEAST AT 29
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  FARMINGTON...
  LAKEVILLE...
  VERMILLION...
  HAMPTON...
  CASTLE ROCK...

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.

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

LAT...LON 4463 9276 4463 9279 4460 9280 4450 9297
      4449 9326 4469 9330 4470 9301 4478 9301
      4470 9275 4464 9273
TIME...MOT...LOC 0000Z 319DEG 25KT 4473 9313

$$
2 follow-up statements
000 
WWUS53 KMPX 010034
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
734 PM CDT SAT MAY 31 2008

MNC037-010100-
/O.CON.KMPX.SV.W.0080.000000T0000Z-080601T0100Z/
DAKOTA MN-
734 PM CDT SAT MAY 31 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR EAST CENTRAL DAKOTA COUNTY...

AT 733 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED NEAR
MIESVILLE...OR ABOUT 7 MILES NORTHEAST OF CANNON FALLS...AND MOVING
SOUTHEAST AT 26 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE MIESVILLE.

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.

LAT...LON 4463 9279 4460 9280 4452 9293 4454 9298
      4467 9279 4468 9276 4468 9275 4464 9273
TIME...MOT...LOC 0034Z 337DEG 23KT 4459 9282

$$
000 
WWUS53 KMPX 010044
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
744 PM CDT SAT MAY 31 2008

MNC037-010054-
/O.CAN.KMPX.SV.W.0080.000000T0000Z-080601T0100Z/
DAKOTA MN-
744 PM CDT SAT MAY 31 2008

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

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

LAT...LON 4463 9279 4460 9280 4452 9293 4454 9298
      4467 9279 4468 9276 4468 9275 4464 9273
TIME...MOT...LOC 0044Z 337DEG 23KT 4453 9278

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 7:18 PM CDTTornado WarningMPXAnoka, Ramsey, Washington30 min
May 31, 7:23 PM CDTTornado WarningMPXWashington32 min
May 31, 7:29 PM CDTSevere Thunderstorm WarningMPXSibley19 min
May 31, 7:32 PM CDTSevere Thunderstorm WarningMPXGoodhue43 min
May 31, 7:40 PM CDTSevere Thunderstorm WarningMPXRamsey, Washington47 min
May 31, 8:21 PM CDTSevere Thunderstorm WarningMPXGoodhue41 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.