Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 90, NWS Duluth, MN

June 20, 2007Price County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jun 20, 2007, 6:51 PM CDT for Price County, Wisconsin. It was in force for 24 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: Jun 20, 2007, 6:51 PM CDT (23:51 UTC)
Expired: Jun 20, 2007, 7:15 PM CDT
In force: 24 min
Issued by: NWS Duluth, MN
Area: Counties, with a storm outline in the text

County Price County, WI

The radar

The Duluth radar (KDLH), 192 km from the middle of the area, began a volume at 23:51 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 20, 2:10 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.9 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1326 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jun 20, 3:12 PM CDT, 3 hours 39 minutes earlier.

Area forecast discussion, Jun 20, 3:12 PM CDT, 3 hours 39 minutes before

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Hazardous weather outlook, Jun 20, 3:58 AM CDT, 14 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
358 AM CDT WED JUN 20 2007

LSZ121-140>148-162-MNZ010>012-018>021-025-026-033>038-WIZ001>004-
006>009-211030-
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-
OPEN WATERS OF LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI
TO GRAND PORTAGE MN-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-
358 AM CDT WED JUN 20 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEASTERN MINNESOTA...
NORTHWESTERN WISCONSIN...AND WESTERN LAKE SUPERIOR.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER NORTHEASTERN
MINNESOTA THIS MORNING. THERE IS A CHANCE OF THUNDERSTORMS OVER
NORTHWESTERN WISCONSIN TODAY. AN ISOLATED STORM MAY BECOME SEVERE
THIS AFTERNOON OVER NORTHWESTERN WISCONSIN...WITH THE MAJOR
HAZARDS BEING LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE FOR MOST OF THE AREA ON FRIDAY AND
AGAIN FROM SUNDAY THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED BY LATE THIS AFTERNOON
FOR NORTHWESTERN WISCONSIN.

04

In the hours before

Local storm report, Jun 20, 3:16 PM CDT, 3 hours 35 minutes before

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Local storm report, Jun 20, 3:20 PM CDT, 3 hours 31 minutes before

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Local storm report, Jun 20, 3:24 PM CDT, 3 hours 27 minutes before

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Local storm report, Jun 20, 3:30 PM CDT, 3 hours 21 minutes before

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Local storm report, Jun 20, 4:09 PM CDT, 2 hours 42 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 2:41 PM CDT	Severe Thunderstorm Warning	DLH	Sawyer	34 min
Jun 20, 2:50 PM CDT	Severe Thunderstorm Warning	DLH	Price	40 min
Jun 20, 2:52 PM CDT	Severe Thunderstorm Warning	DLH	Washburn	23 min
Jun 20, 3:04 PM CDT	Severe Thunderstorm Warning	DLH	Sawyer	56 min
Jun 20, 3:40 PM CDT	Severe Thunderstorm Warning	DLH	Price	50 min
Jun 20, 4:29 PM CDT	Severe Thunderstorm Warning	DLH	Price	16 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2007 Every severe thunderstorm warning in 2007

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.