Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 13, NWS Twin Cities, MN

April 18, 2006Douglas County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 18, 2006, 6:48 PM CDT for Douglas County, Minnesota. It was in force for 34 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
Apr 18, 2006, 6:48 PM CDT (23:48 UTC)
Expired
Apr 18, 2006, 7:22 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 205 km from the middle of the area, began a volume at 23:47 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, 11.8 hours before the alert went out and 203 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 2006-04-18Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2006-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1640 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
203 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 182347
SVRMPX
MNC041-190045-
/O.NEW.KMPX.SV.W.0013.060418T2348Z-060419T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
648 PM CDT TUE APR 18 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 745 PM CDT

* AT 642 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED NEAR
  ALEXANDRIA...AND MOVING NORTH AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CARLOS...
  GARFIELD...
  MILTONA...
  LEAF VALLEY...
  MILLERVILLE...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4577 9553 4578 9527 4664 9534 4661 9573

$$
2 follow-up statements
000 
WWUS53 KMPX 190008
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
707 PM CDT TUE APR 18 2006

MNC041-190045-
/O.CON.KMPX.SV.W.0013.000000T0000Z-060419T0045Z/
DOUGLAS MN-
707 PM CDT TUE APR 18 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR DOUGLAS COUNTY...

AT 702 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL...AND THIS STORM WAS
LOCATED NEAR GARFIELD...OR ABOUT 7 MILES NORTHWEST OF ALEXANDRIA...
AND MOVING NORTH AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BRANDON AND MILLERVILLE.

LAT...LON 4577 9553 4578 9527 4664 9534 4661 9573

$$
000 
WWUS53 KMPX 190022
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
722 PM CDT TUE APR 18 2006

MNC041-190032-
/O.CAN.KMPX.SV.W.0013.000000T0000Z-060419T0045Z/
DOUGLAS MN-
722 PM CDT TUE APR 18 2006

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

RADAR INDICATED THAT THE STORM HAD WEAKENED TO BELOW SEVERE LIMITS. 
THUS THE WARNING HAS BEEN CANCELLED.

LAT...LON 4577 9553 4578 9527 4664 9534 4661 9573

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 5:44 PM CDTSevere Thunderstorm WarningMPXRenville61 min
Apr 18, 5:55 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet, Waseca65 min
Apr 18, 6:07 PM CDTSevere Thunderstorm WarningMPXKandiyohi, McLeod, Meeker, Renville38 min
Apr 18, 6:17 PM CDTSevere Thunderstorm WarningMPXSibley28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.