Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 140, NWS Duluth, MN

August 1, 2012Price County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Aug 1, 2012, 2:10 PM CDT for Price County, Wisconsin. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 1, 2012, 2:10 PM CDT (19:10 UTC)
Expired
Aug 1, 2012, 2:30 PM CDT
In force
20 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon

County Price County, WI

The radar

The Duluth radar (KDLH), 192 km from the middle of the area, began a volume at 19:11 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.2 hours before the alert went out and 222 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, Green Bay/Straub, WI at 12:00Z on 2012-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Green Bay/Straub, WI at 12:00Z on 2012-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
1165 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 1, 12:59 PM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Aug 1, 12:59 PM CDT, 1 hour 11 minutes before
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Hazardous weather outlook, Aug 1, 4:47 AM CDT, 9 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
447 AM CDT WED AUG 1 2012

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-021030-
KOOCHICHING-NORTHERN ST. LOUIS-NORTHERN COOK/NORTHERN LAKE-
NORTHERN ITASCA-CENTRAL ST. LOUIS-SOUTHERN LAKE/LAKESHORE-
SOUTHERN COOK/LAKESHORE-NORTHERN CASS-SOUTHERN ITASCA-
SOUTHERN CASS-CROW WING-NORTHERN AITKIN-SOUTHERN AITKIN-
CARLTON/SOUTHERN ST. LOUIS-PINE-DOUGLAS-BAYFIELD-ASHLAND-IRON-
BURNETT-WASHBURN-SAWYER-PRICE-
447 AM CDT WED AUG 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA AND
NORTHWEST WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE POSSIBLE TODAY ACROSS THE NORTHLAND...WITH A
FEW STRONG TO SEVERE STORMS POSSIBLE...MAINLY SOUTH AND EAST OF A
LINE FROM HINCKLEY TO ASHLAND IN WISCONSIN. THE MAIN THREAT WILL
BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS WILL BE POSSIBLE AGAIN FRIDAY AND SATURDAY. THE
GREATEST CHANCE FOR STRONG OR SEVERE STORMS WILL BE FRIDAY
AFTERNOON INTO FRIDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.

LSZ121-140>148-021030-
BAYFIELD TO OAK POINT WI-GRAND PORTAGE TO GRAND MARAIS MN-
GRAND MARAIS TO TACONITE HARBOR MN-
TACONITE HARBOR TO SILVER BAY HARBOR MN-
SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN-
DULUTH MN TO PORT WING WI-PORT WING TO SAND ISLAND WI-
SAND ISLAND TO BAYFIELD WI-OAK POINT TO SAXON HARBOR WI-
447 AM CDT WED AUG 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF
WESTERN LAKE SUPERIOR.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE POSSIBLE TODAY ACROSS PARTS OF WESTERN LAKE
SUPERIOR...WITH A FEW STRONG STORMS POSSIBLE...MAINLY ALONG THE
SOUTH SHORE. THE MAIN THREAT WILL BE HAIL AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS WILL BE POSSIBLE AGAIN FRIDAY AND SATURDAY. THE
GREATEST CHANCE FOR STRONG OR SEVERE STORMS WILL BE FRIDAY
AFTERNOON INTO FRIDAY EVENING.

TENTINGER

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB ADDRESS:
HTTP://WWW.WEATHER.GOV/DULUTH (ALL LOWER CASE)

In the hours before

Special weather statement, Aug 1, 10:34 AM CDT, 3 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
ISSUED BY NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1034 AM CDT WED AUG 1 2012

MNZ037-WIZ001-011615-
CARLTON/SOUTH ST. LOUIS-DOUGLAS-
1034 AM CDT WED AUG 1 2012

...STRONG THUNDERSTORMS MOVING THROUGH CARLTON... SOUTHERN ST.
LOUIS... AND NORTHWEST DOUGLAS COUNTIES THROUGH 1115 AM CDT...

AT 1030 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF STRONG THUNDERSTORMS 24 MILES WEST OF DULUTH...MOVING EAST
AT 50 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...OCCASIONAL
CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY DOWNPOURS...ARE POSSIBLE
WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
  SCANLON...            SAGINAW...            CARLTON...
  WRENSHALL...          THOMSON...            TAFT...
  PLEASANT VALLEY...    MUNGER...             ESKO...
  PROCTOR...            ISLAND LAKE...        HERMANTOWN...
  FREDENBERG...         FOND DU LAC...        ADOLF...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.
Special weather statement, Aug 1, 11:36 AM CDT, 2 hours 34 minutes before
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Local storm report, Aug 1, 11:44 AM CDT, 2 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1144 AM CDT WED AUG 1 2012

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     HAIL             ASHLAND                 46.58N 90.87W
08/01/2012  M0.88 INCH       ASHLAND            WI   TRAINED SPOTTER

&&

IRIS SYSTEM
Local storm report, Aug 1, 11:52 AM CDT, 2 hours 18 minutes before
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Special weather statement, Aug 1, 11:56 AM CDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
ISSUED BY NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1156 AM CDT WED AUG 1 2012

WIZ003-004-011800-
ASHLAND-IRON-
1156 AM CDT WED AUG 1 2012

...STRONG THUNDERSTORMS MOVING THROUGH SOUTHERN ASHLAND AND IRON
COUNTIES THROUGH 1 PM CDT...

AT 1149 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORM OVER CENTRAL AND SOUTHERN ASHLAND
COUNTY...MOVING EAST AT 35 MPH. A SEVERE THUNDERSTORM WAS ALSO
LOCATED OVER NORTHERN ASHLAND COUNTY... MOVING INTO NORTHERN IRON
COUNTY... WHERE A SEVERE THUNDERSTORM WARNING IS IN EFFECT THROUGH
1215 PM CDT.

NICKEL SIZE HAIL...WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO
GROUND LIGHTNING...ARE POSSIBLE WITH THE STORMS IN SOUTHERN ASHLAND
AND IRON COUNTIES.

LOCATIONS IMPACTED INCLUDE...
  MORSE...              GLIDDEN...            UPSON...
  IRON BELT...          PENCE...              MONTREAL...
  GILE...               VAN BUSKIRK...        MERCER...
  MANITOWISH...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.
Special weather statement, Aug 1, 2:06 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
ISSUED BY NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
206 PM CDT WED AUG 1 2012

WIZ009-011930-
PRICE-
206 PM CDT WED AUG 1 2012

...STRONG THUNDERSTORM MOVING THROUGH SOUTHEAST PRICE COUNTY...

AT 202 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER SOUTH CENTRAL PRICE COUNTY...MOVING
SOUTHEAST AT 25 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...OCCASIONAL
CLOUD TO GROUND LIGHTNING...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  SPIRIT...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 6:58 AM CDTSpecial Weather StatementDLHCrow Wing47 min
Aug 1, 11:47 AM CDTSpecial Marine WarningDLH28 min
Aug 1, 11:49 AM CDTSevere Thunderstorm WarningDLHAshland, Iron26 min
Aug 1, 12:16 PM CDTSevere Thunderstorm WarningDLHAshland, Iron44 min
Aug 1, 3:59 PM CDTSpecial Weather StatementDLHPrice31 min
Aug 1, 4:13 PM CDTSevere Thunderstorm WarningDLHAshland, Iron, Price48 min
Aug 1, 5:07 PM CDTSpecial Weather StatementDLHPrice23 min
Aug 1, 5:20 PM CDTSevere Thunderstorm WarningDLHIron, Price14 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012

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.