Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 200, NWS Twin Cities, MN

July 16, 2008Douglas County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 16, 2008, 4:17 AM CDT for Douglas County, Minnesota. It was in force for 28 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
Jul 16, 2008, 4:17 AM CDT (09:17 UTC)
Expired
Jul 16, 2008, 4:45 AM CDT
In force
28 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 193 km from the middle of the area, began a volume at 09:17 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 00:00Z, 9.3 hours before the alert went out and 191 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 2008-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 548 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 2008-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 square meters per square second.19395878Sfc1 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
548 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
2277 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
90 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 160916
SVRMPX
MNC041-160945-
/O.NEW.KMPX.SV.W.0200.080716T0917Z-080716T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
417 AM CDT WED JUL 16 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 445 AM CDT

* AT 413 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL.  THIS STORM WAS LOCATED NEAR BRANDON...
  OR ABOUT 13 MILES NORTHWEST OF ALEXANDRIA...AND MOVING EAST AT 40
  MPH.

* SOME LOCATIONS INCLUDE...
  LEAF VALLEY...
  MILTONA...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4603 9514 4590 9568 4610 9571 4612 9533
      4612 9531 4612 9515 4611 9514
TIME...MOT...LOC 0917Z 267DEG 34KT 4600 9553

$$

KAT
1 follow-up statement
000 
WWUS53 KMPX 160943
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
443 AM CDT WED JUL 16 2008

MNC041-160953-
/O.EXP.KMPX.SV.W.0200.000000T0000Z-080716T0945Z/
DOUGLAS MN-
443 AM CDT WED JUL 16 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DOUGLAS COUNTY
EXPIRES AT 445 AM CDT...

THE THUNDERSTORMS THAT PROMPTED THE WARNING HAVE DECREASED IN 
INTENSITY...AND THEREFORE...THE SEVERE THUNDERSTORM WARNING WILL BE 
ALLOWED TO EXPIRE. THUNDERSTORMS WILL CONTINUE TO AFFECT DOUGLAS 
COUNTY THROUGH 515 AM...WITH HEAVY RAIN AND SMALL HAIL POSSIBLE.

LAT...LON 4603 9514 4590 9568 4610 9571 4612 9533
      4612 9531 4612 9515 4611 9514
TIME...MOT...LOC 0943Z 267DEG 34KT 4601 9518

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 4:03 AM CDTSevere Thunderstorm WarningMPXDouglas, Todd42 min
Jul 16, 9:26 AM CDTSevere Thunderstorm WarningMPXMeeker, Sherburne, Stearns, Wright64 min
Jul 16, 9:57 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd63 min
Jul 16, 10:47 AM CDTSevere Thunderstorm WarningMPXWashington58 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.