Alert archive / Wisconsin / Special Weather Statements in 2012

Special Weather Statement, NWS Duluth, MN

July 25, 2012Ashland County, Bayfield County, Iron County, Wisconsin

NWS Duluth, MN issued this special weather statement at Jul 25, 2012, 4:13 AM CDT for Ashland County, Bayfield County, Iron County, Wisconsin. It was in force for 17 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 25, 2012, 4:13 AM CDT (09:13 UTC)
Expired
Jul 25, 2012, 4:30 AM CDT
In force
17 min
Issued by
NWS Duluth, MN

Counties Ashland County, WI, Bayfield County, WI, Iron County, WI

The radar

The Duluth radar (KDLH), 117 km from the middle of the area, began a volume at 09:16 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.

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 9.2 hours before the alert went out and 289 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, International Fa, MN at 00:00Z on 2012-07-25Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2012-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2070 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
76 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 25, 3:58 AM CDT, 15 minutes earlier.

Area forecast discussion, Jul 25, 3:58 AM CDT, 15 minutes before
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Hazardous weather outlook, Jul 24, 8:41 PM CDT, 7 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE DULUTH MN
841 PM CDT TUE JUL 24 2012

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-251030-
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-
841 PM CDT TUE JUL 24 2012

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

.DAY ONE...TONIGHT

THUNDERSTORMS WILL CONTINUE TO DEVELOP AND SPREAD NORTHEASTWARD
ACROSS THE ENTIRE AREA THIS EVENING AND CONTINUE OVERNIGHT. FOR
ALL AREAS EXCEPT FOR THE MINNESOTA ARROWHEAD...SOME OF THE STORMS
MAY BE SEVERE. THE MAIN THREAT IS LARGE HAIL AND STRONG DAMAGING
WINDS. THERE IS ALSO A THREAT OF HEAVY RAIN. A FLASH FLOOD WATCH
HAS BEEN ISSUED FOR THE HIGHER TERRAIN OF THE NORTH SHORE.
DEPENDING UPON WHERE THE HEAVIEST THUNDERSTORMS SET UP LATER THIS
EVENING... THE FLASH FLOOD WATCH COULD BE ENLARGED.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

HEAVY RAIN WILL CONTINUE TO BE POSSIBLE ACROSS FAR EASTERN
MINNESOTA AND A PORTION OF FAR NORTHERN WISCONSIN WEDNESDAY MORNING.
THUNDERSTORMS WILL BE POSSIBLE THROUGH THE DAY...AND SOME COULD BE
SEVERE IN THE AFTERNOON AND EVENING...ROUGHLY SOUTH AND WEST OF A
LINE FROM INTERNATIONAL FALLS...TO AITKIN TO PHILLIPS. LARGE HAIL
AND DAMAGING WINDS WILL BE THE MAIN THREATS.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING AND LATER
TONIGHT.

LSZ121-140>148-251030-
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-
841 PM CDT TUE JUL 24 2012

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

.DAY ONE...TONIGHT

THUNDERSTORMS WILL DEVELOP AND SPREAD ACROSS WESTERN LAKE SUPERIOR
THIS EVENING. SOME OF THE STORMS COULD BE SEVERE OVER THE WATERS
AROUND THE DULUTH AND SUPERIOR AREAS. THE MAIN THREAT IS LARGE
HAIL AND STRONG THUNDERSTORM WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY THROUGH FRIDAY...AND
AGAIN SUNDAY THROUGH MONDAY.

EOM

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, Jul 25, 3:18 AM CDT, 55 minutes before
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Special weather statement, Jul 25, 3:30 AM CDT, 43 minutes before
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Special weather statement, Jul 25, 3:33 AM CDT, 40 minutes before
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Local storm report, Jul 25, 3:47 AM CDT, 26 minutes before
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Special weather statement, Jul 25, 3:51 AM CDT, 22 minutes before
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Special weather statement, Jul 25, 4:13 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 12:45 AM CDTSpecial Weather StatementDLHCrow Wing15 min
Jul 25, 12:49 AM CDTSpecial Weather StatementDLHCass11 min
Jul 25, 1:07 AM CDTSpecial Weather StatementDLHCass23 min
Jul 25, 1:32 AM CDTSevere Thunderstorm WarningDLHCass, Crow Wing43 min
Jul 25, 1:40 AM CDTSpecial Weather StatementDLHCass20 min
Jul 25, 2:04 AM CDTSpecial Weather StatementDLHItasca11 min
Jul 25, 2:07 AM CDTSevere Thunderstorm WarningDLHCass, Crow Wing38 min
Jul 25, 2:20 AM CDTSpecial Weather StatementDLHItasca25 min
Jul 25, 2:43 AM CDTSevere Thunderstorm WarningDLHAitkin, Cass, Crow Wing, Itasca32 min
Jul 25, 2:47 AM CDTSpecial Weather StatementDLHKoochiching13 min
Jul 25, 3:15 AM CDTSevere Thunderstorm WarningDLHAitkin, Carlton, Saint Louis30 min
Jul 25, 3:30 AM CDTSpecial Weather StatementDLHSaint Louis15 min
Jul 25, 3:51 AM CDTSpecial Weather StatementDLHCarlton24 min
Jul 25, 4:16 AM CDTSpecial Weather StatementDLHLake14 min
Jul 25, 6:43 PM CDTSpecial Weather StatementDLHKoochiching17 min
Jul 25, 12:39 AM CDTSpecial Weather StatementDLHBurnett51 min
Jul 25, 1:43 AM CDTSpecial Weather StatementDLHSawyer17 min
Jul 25, 2:28 AM CDTSpecial Weather StatementDLHDouglas17 min
Jul 25, 2:34 AM CDTSpecial Weather StatementDLHSawyer26 min
Jul 25, 2:51 AM CDTSpecial Weather StatementDLHBayfield, Douglas, Price, Sawyer24 min
Jul 25, 3:18 AM CDTSpecial Weather StatementDLHBayfield, Douglas, Price12 min
Jul 25, 3:33 AM CDTSpecial Weather StatementDLHAshland, Bayfield, Price27 min
Jul 25, 4:41 AM CDTSpecial Weather StatementDLHAshland, Bayfield, Iron19 min
Jul 25, 5:53 AM CDTSpecial Weather StatementDLHSawyer, Washburn37 min
Jul 25, 7:08 AM CDTSpecial Weather StatementDLHIron, Price67 min

Nearby

Special Weather Statements in Wisconsin, 2012Every special weather statement 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.