Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 154, NWS Twin Cities, MN

July 31, 2006Sherburne County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 2006, 10:57 PM CDT for Sherburne County, Wright County, Minnesota. It was in force for 35 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
Jul 31, 2006, 10:57 PM CDT (03:57 UTC)
Expired
Jul 31, 2006, 11:32 PM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Sherburne County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 64 km from the middle of the area, began a volume at 03:57 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 31, 11:00 PM CDTTSTM WND DMGBecker, MNTREES DOWN ACROSS THE ROAD.

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 00:00Z, 4.0 hours before the alert went out and 63 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 2006-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4090 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 2006-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
4090 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1499 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
293 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 010357
SVRMPX
MNC141-171-010500-
/O.NEW.KMPX.SV.W.0154.060801T0357Z-060801T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1057 PM CDT MON JUL 31 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  WRIGHT COUNTY IN CENTRAL MINNESOTA...

* UNTIL MIDNIGHT CDT

* AT 1052 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...  
  CAPABLE OF PRODUCING PENNY SIZE HAIL AND 60 MPH WINDS.   THIS      
  STORM WAS LOCATED 6 MILES SOUTHWEST OF BECKER...OR ABOUT 19        
  MILES SOUTHEAST OF ST CLOUD...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BECKER...
  MONTICELLO...
  BIG LAKE...
  ELK RIVER...

LAT...LON 4537 9410 4522 9399 4530 9353 4553 9356
      4555 9374

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 010423
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1122 PM CDT MON JUL 31 2006

MNC171-010432-
/O.CAN.KMPX.SV.W.0154.000000T0000Z-060801T0500Z/
WRIGHT MN-
1122 PM CDT MON JUL 31 2006

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

THE STORM THAT PROMPTED THE WARNING FOR WRIGHT COUNTY HAS MOVED OUT 
OF THE COUNTY. THEREFORE...THE WARNING HAS BEEN CANCELLED. REPORT 
ANY SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE 
NATIONAL WEATHER SERVICE.

LAT...LON 4553 9380 4533 9373 4530 9353 4553 9356

$$

MNC141-010500-
/O.CON.KMPX.SV.W.0154.000000T0000Z-060801T0500Z/
SHERBURNE MN-
1122 PM CDT MON JUL 31 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR SHERBURNE COUNTY...

AT 1119 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.  THIS STORM WAS LOCATED NEAR ZIMMERMAN...OR ABOUT 10 MILES SOUTH
OF PRINCETON...AND MOVING NORTHEAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ELK RIVER.

LAT...LON 4553 9380 4533 9373 4530 9353 4553 9356

$$

KAT
000 
WWUS53 KMPX 010432
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1132 PM CDT MON JUL 31 2006

MNC141-010442-
/O.CAN.KMPX.SV.W.0154.000000T0000Z-060801T0500Z/
SHERBURNE MN-
1132 PM CDT MON JUL 31 2006

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

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

BEFORE MOVING OUT OF SHERBURNE COUNTY...THE STORM DOWNED TREES IN 
BECKER TOWNSHIP AT 1100 PM.

LAT...LON 4553 9380 4533 9373 4530 9353 4553 9356

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 7:02 PM CDTSevere Thunderstorm WarningMPXMorrison43 min
Jul 31, 7:30 PM CDTSevere Thunderstorm WarningMPXTodd19 min
Aug 1, 3:47 AM CDTFlash Flood WatchMPXAnoka, Blue Earth, Brown, Carver, Chisago, Dakota and 15 more24 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2006Every severe thunderstorm warning in 2006

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.