Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 18, NWS Twin Cities, MN

May 8, 2006Hennepin County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2006, 7:26 PM CDT for Hennepin County, Minnesota. It was in force for 49 min. 3 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
May 8, 2006, 7:26 PM CDT (00:26 UTC)
Expired
May 8, 2006, 8:15 PM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Hennepin County, MN

The radar

The Minneapolis radar (KMPX), 15 km from the middle of the area, began a volume at 00:28 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 8, 7:30 PM CDTHAIL 0.751 Sw Minnetonka, MN
May 8, 7:44 PM CDTHAIL 0.88Minnetonka, MN
May 8, 8:00 PM CDTHAIL 0.88Plymouth, MN

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, 0.4 hours before the alert went out and 17 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 2006-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 628 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 2006-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
628 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1057 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 090026
SVRMPX
MNC053-090115-
/O.NEW.KMPX.SV.W.0018.060509T0026Z-060509T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
726 PM CDT MON MAY 8 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 815 PM CDT

* AT 723 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED NEAR
  MINNETONKA...OR ABOUT OVER EXCELSIOR...AND MOVING NORTHEAST AT 15
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  ST LOUIS PARK...
  PLYMOUTH...
  MAPLE GROVE...
  BROOKLYN PARK...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4491 9358 4486 9349 4500 9324 4516 9344

$$

KAT
1 follow-up statement
000 
WWUS53 KMPX 090046
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
745 PM CDT MON MAY 8 2006

MNC053-090115-
/O.CON.KMPX.SV.W.0018.000000T0000Z-060509T0115Z/
HENNEPIN MN-
745 PM CDT MON MAY 8 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR HENNEPIN COUNTY...

AT 744 PM CDT...HAIL UP TO THE SIZE OF NICKELS WAS REPORTED IN 
MINNETONKA WITH THIS STORM.

AT 740 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL...AND THIS STORM WAS
LOCATED NEAR MEDICINE LAKE...OR ABOUT 6 MILES EAST OF EXCELSIOR...AND
MOVING NORTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WAYZATA...ROBBINSDALE...
PLYMOUTH...OSSEO...NEW HOPE...MAPLE GROVE...HOPKINS...GOLDEN
VALLEY...CRYSTAL AND BROOKLYN CENTER.

THIS IS A DANGEROUS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4497 9353 4491 9343 4500 9324 4516 9344

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 8:16 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin59 min
May 8, 8:21 PM CDTSevere Thunderstorm WarningMPXWaseca39 min
May 9, 6:06 PM CDTSevere Thunderstorm WarningMPXLac qui Parle24 min
May 9, 6:51 PM CDTSevere Thunderstorm WarningMPXMorrison39 min

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.