Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 76, NWS Twin Cities, MN

June 7, 2007Anoka County, Isanti County, Sherburne County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 7, 2007, 6:41 PM CDT for Anoka County, Isanti County, Sherburne County, Minnesota. It was in force for 49 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
Jun 7, 2007, 6:41 PM CDT (23:41 UTC)
Expired
Jun 7, 2007, 7:30 PM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Anoka County, MN, Isanti County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 23:44 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 12:00Z, 11.7 hours before the alert went out and 57 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 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 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 12:00Z on 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 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
72 J/kg
Mixed-layer CIN
-470 J/kg
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 072341
SVRMPX
MNC003-059-141-080030-
/O.NEW.KMPX.SV.W.0076.070607T2341Z-070608T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
641 PM CDT THU JUN 7 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ISANTI COUNTY IN EAST CENTRAL MINNESOTA...
  SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  ANOKA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 639 PM CDT...DOPPLER 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 13
  MILES SOUTHWEST OF ELK RIVER TO 5 MILES EAST OF ELK RIVER TO 3
  MILES NORTHWEST OF BLAINE...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EAST BETHEL...
  ELK RIVER...
  ZIMMERMAN...
  ISANTI...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4534 9381 4529 9356 4512 9323 4554 9303
      4554 9370

$$
1 follow-up statement
000 
WWUS53 KMPX 080014
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
713 PM CDT THU JUN 7 2007

MNC141-080023-
/O.CAN.KMPX.SV.W.0076.000000T0000Z-070608T0030Z/
SHERBURNE MN-
713 PM CDT THU JUN 7 2007

...THE SEVERE THUNDERSTORM WARNING FOR SHERBURNE COUNTY IS
CANCELLED...

THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF SHERBURNE 
COUNTY. REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY TO 
THE NATIONAL WEATHER SERVICE.

LAT...LON 4555 9347 4537 9348 4526 9304 4554 9303

$$

MNC003-059-080030-
/O.CON.KMPX.SV.W.0076.000000T0000Z-070608T0030Z/
ISANTI MN-ANOKA MN-
713 PM CDT THU JUN 7 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR ANOKA AND ISANTI COUNTIES...

AT 709 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 4 MILES
SOUTHWEST OF ISANTI TO 9 MILES EAST OF EAST BETHEL...AND MOVING
NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BODUM...ATHENS...ST FRANCIS...
ISANTI...EAST BETHEL AND BETHEL.

LAT...LON 4555 9347 4537 9348 4526 9304 4554 9303

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 1:32 AM CDTSevere Thunderstorm WarningMPXBrown, Redwood, Watonwan43 min
Jun 7, 2:09 AM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Sibley51 min
Jun 7, 2:26 AM CDTSevere Thunderstorm WarningMPXLe Sueur, Rice49 min
Jun 7, 2:36 AM CDTSevere Thunderstorm WarningMPXMcLeod24 min
Jun 7, 2:43 AM CDTSevere Thunderstorm WarningMPXDakota, Rice, Scott32 min
Jun 7, 2:59 AM CDTSevere Thunderstorm WarningMPXCarver, McLeod, Wright35 min
Jun 7, 3:07 AM CDTSevere Thunderstorm WarningMPXDakota, Ramsey, Washington25 min
Jun 7, 3:26 AM CDTSevere Thunderstorm WarningMPXWashington34 min
Jun 7, 4:14 AM CDTWind AdvisoryMPXAnoka, Blue Earth, Brown, Carver, Chippewa, Dakota and 27 more17 hr
Jun 7, 11:33 AM CDTSevere Thunderstorm WarningMPXGoodhue57 min
Jun 7, 11:45 AM CDTTornado WarningMPXGoodhue45 min
Jun 7, 3:21 PM CDTSevere Thunderstorm WarningMPXPope24 min
Jun 7, 5:10 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville50 min
Jun 7, 6:12 PM CDTSevere Thunderstorm WarningMPXMeeker, Wright46 min
Jun 7, 6:27 PM CDTSevere Thunderstorm WarningMPXHennepin33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007

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.