Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 170, NWS Twin Cities, MN

July 11, 2008Chippewa County, Lac qui Parle County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 11, 2008, 12:16 AM CDT for Chippewa County, Lac qui Parle County, Swift County, Minnesota. It was in force for 59 min. 2 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
Jul 11, 2008, 12:16 AM CDT (05:16 UTC)
Expired
Jul 11, 2008, 1:15 AM CDT
In force
59 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Chippewa County, MN, Lac qui Parle County, MN, Swift County, MN

The radar

The Aberdeen radar (KABR), 183 km from the middle of the area, began a volume at 05:16 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 11, 12:20 AM CDTHAIL 0.75Danvers, MN
Jul 11, 12:20 AM CDTHAIL 0.75Holloway, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 10, 11:41 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 5.3 hours before the alert went out and 185 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, Aberdeen, SD at 00:00Z on 2008-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2257 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2008-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
2257 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
2064 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 110517
SVRMPX
MNC023-073-151-110615-
/O.NEW.KMPX.SV.W.0170.080711T0516Z-080711T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1216 AM CDT FRI JUL 11 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHERN LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 115 AM CDT

* AT 1213 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
  THIS STORM WAS LOCATED 3 MILES NORTH OF HOLLOWAY...OR ABOUT 15     
  MILES WEST OF BENSON...AND MOVING EAST AT 37 MPH. ANOTHER SEVERE   
  THUNDERSTORMS IS LOCATED FROM NEAR ARTICHOKE TO ODESSA...MOVING TO 
  THE SOUTHEAST.

* SOME LOCATIONS INCLUDE...
  BIG BEND CITY...
  DANVERS...
  CLONTARF...
  BENSON...
  MURDOCK...
  KERKHOVEN...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND 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 4528 9644 4527 9633 4524 9626 4524 9623
      4520 9614 4540 9613 4540 9528 4502 9526
      4505 9644
TIME...MOT...LOC 0516Z 266DEG 32KT 4529 9587

$$

MB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 11:04 PM CDTSevere Thunderstorm WarningMPXDouglas41 min
Jul 10, 11:20 PM CDTSevere Thunderstorm WarningMPXPope, Stevens, Swift55 min
Jul 10, 11:40 PM CDTSevere Thunderstorm WarningMPXDouglas, Morrison, Pope, Stearns, Todd65 min
Jul 11, 12:52 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Stearns53 min
Jul 11, 1:06 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Renville, Swift, Yellow Medicine54 min
Jul 11, 1:10 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs, Morrison65 min
Jul 11, 4:45 PM CDTTornado WarningMPXTodd30 min
Jul 11, 5:13 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Pope, Swift47 min
Jul 11, 5:15 PM CDTSevere Thunderstorm WarningMPXTodd45 min
Jul 11, 5:44 PM CDTSevere Thunderstorm WarningMPXMorrison46 min
Jul 11, 5:48 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Stearns57 min
Jul 11, 6:28 PM CDTTornado WarningMPXKandiyohi, Meeker47 min
Jul 11, 6:36 PM CDTTornado WarningMPXKandiyohi, Meeker, Stearns54 min
Jul 11, 6:40 PM CDTTornado WarningMPXMeeker, Stearns65 min
Jul 11, 6:50 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville, Sibley55 min
Jul 11, 6:51 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs, Morrison54 min
Jul 11, 6:54 PM CDTTornado WarningMPXRenville36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.