Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 101, NWS Duluth, MN

August 27, 2013Ashland County, Iron County, Price County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Aug 27, 2013, 3:53 AM CDT for Ashland County, Iron County, Price County, Wisconsin. It was in force for 52 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 27, 2013, 3:53 AM CDT (08:53 UTC)
Expired
Aug 27, 2013, 4:45 AM CDT
In force
52 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Ashland County, WI, Iron County, WI, Price County, WI

The radar

The Duluth radar (KDLH), 154 km from the middle of the area, began a volume at 08:55 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, 8.9 hours before the alert went out and 286 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 2013-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2586 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, Minneapolis, MN at 00:00Z on 2013-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 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
2586 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
1399 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.7
Supercell composite
15.4

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 27, 3:35 AM CDT, 18 minutes earlier.

Area forecast discussion, Aug 27, 3:35 AM CDT, 18 minutes before
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Hazardous weather outlook, Aug 26, 10:09 PM CDT, 5 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
1009 PM CDT MON AUG 26 2013

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-271415-
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-
1009 PM CDT MON AUG 26 2013

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

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL CONTINUE TO TRACK ACROSS NORTHEAST
MINNESOTA...AND NORTHERN WISCONSIN THROUGH THE EARLY MORNING. A
FEW OF THE STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE.

ADDITIONAL HEAVY RAIN TONIGHT IN PARTS OF NORTHWEST WISCONSIN
HAVE PROMPTED A FLASH FLOOD WATCH FOR WASHBURN...SAWYER AND PRICE
COUNTIES. LOCALIZED FLASH FLOODING IS POSSIBLE ALONG STREAMS AND
CREEKS AND LOW LYING AREAS...ESPECIALLY AREAS THAT RECEIVED HEAVY
RAIN LAST NIGHT. CHECK THE LATEST FLASH FLOOD WATCH FOR ADDITIONAL
INFORMATION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE CHANCE FOR THUNDERSTORMS WILL RETURN TO THE NORTHLAND THURSDAY
INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.

LSZ121-140>148-271415-
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-
1009 PM CDT MON AUG 26 2013

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

.DAY ONE...TONIGHT

AN ISOLATED THUNDERSTORM WILL CONTINUE TO BE POSSIBLE OVERNIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE CHANCE FOR THUNDERSTORMS WILL RETURN TO THE NORTHLAND THURSDAY
INTO THE WEEKEND.

GRANING

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 27, 12:45 AM CDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1245 AM CDT TUE AUG 27 2013

MNZ037-270630-
CARLTON/SOUTH ST. LOUIS-
1245 AM CDT TUE AUG 27 2013

...STRONG STORM NEAR FLOODWOOD...

AT 1243 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR FLOODWOOD...MOVING EAST AT 25 MPH.

THIS STORM CONTAINS BRIEF HEAVY RAINFALL AND FREQUENT LIGHTING. IN
ADDITION...GUSTY WINDS TO 40 MPH MAY BE POSSIBLE.

* THE THUNDERSTORM WILL BE NEAR...
  BROOKSTON AND ALBORN BY 110 AM...
  CULVER AND BURNETT AROUND 115 AM...
  GRAND LAKE AND SAGINAW AROUND 130 AM...

SEEK SHELTER INDOORS UNTIL THIS STORM HAS PASSED.

LAT...LON 4704 9237 4677 9235 4685 9301 4701 9297

GRANING
Special weather statement, Aug 27, 1:21 AM CDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
121 AM CDT TUE AUG 27 2013

MNZ019-020-037-WIZ001-270700-
CARLTON/SOUTH ST. LOUIS-CENTRAL ST. LOUIS-DOUGLAS-SOUTHERN LAKE/NORTH
SHORE-
121 AM CDT TUE AUG 27 2013

...THUNDERSTORMS TRACKING OVER THE TWIN PORTS...

AT 115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF THUNDERSTORMS...CONTAINING BRIEF HEAVY RAIN...NEAR GRAND
LAKE AND ESKO...MOVING EAST AT 25 MPH.

THIS STORM CONTAINS BRIEF HEAVY RAINFALL AND OCCASIONAL LIGHTING. IN
ADDITION...GUSTY WINDS TO 40 MPH MAY BE POSSIBLE.

* THE THUNDERSTORM WILL BE NEAR...
  HERMANTOWN AND WEST DULUTH BY 130 AM...
  THE LAKEWOOD AND LESTER PARK NEIGHBORHOODS AROUND 140 AM...
  FRENCH RIVER AROUND 200 AM...

LAT...LON 4667 9249 4698 9251 4710 9179 4693 9179
      4690 9187 4679 9207 4675 9207

GRANING
Special weather statement, Aug 27, 1:29 AM CDT, 2 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
129 AM CDT TUE AUG 27 2013

MNZ037-WIZ001-002-270700-
BAYFIELD-CARLTON/SOUTH ST. LOUIS-DOUGLAS-
129 AM CDT TUE AUG 27 2013

...THUNDERSTORMS OVER NORTHERN DOUGLAS COUNTY...

AT 125 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF THUNDERSTORMS NEAR HAWTHORNE...MOVING EAST AT 30 MPH.

THIS STORM CONTAINS BRIEF HEAVY RAINFALL AND OCCASIONAL LIGHTING. IN
ADDITION...GUSTY WINDS TO 40 MPH MAY BE POSSIBLE.

* THE THUNDERSTORM WILL AFFECT THE AREAS OF...
  POPLAR...MAPLE...LAKE NEBAGAMON...BRULE AND OULU THROUGH 200 AM.

LAT...LON 4648 9225 4669 9222 4672 9200 4669 9196
      4670 9194 4670 9182 4677 9160 4676 9153
      4680 9139 4641 9135

GRANING
Special weather statement, Aug 27, 2:03 AM CDT, 1 hour 50 minutes before
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Special weather statement, Aug 27, 2:45 AM CDT, 1 hour 8 minutes before
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Special weather statement, Aug 27, 3:01 AM CDT, 52 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 7:01 PM CDTSpecial Weather StatementDLHCarlton29 min
Aug 26, 7:12 PM CDTSpecial Weather StatementDLHSaint Louis18 min
Aug 26, 7:28 PM CDTSpecial Weather StatementDLHLake17 min
Aug 26, 7:29 PM CDTSpecial Weather StatementDLHCarlton, Pine31 min
Aug 26, 7:34 PM CDTSpecial Marine WarningDLH56 min
Aug 26, 7:47 PM CDTSpecial Weather StatementDLHLake43 min
Aug 26, 7:58 PM CDTSpecial Weather StatementDLHPine32 min
Aug 26, 8:05 PM CDTSevere Thunderstorm WarningDLHCass, Crow Wing55 min
Aug 26, 8:12 PM CDTSevere Thunderstorm WarningDLHCarlton, Pine48 min
Aug 26, 8:23 PM CDTTornado WarningDLHCass37 min
Aug 26, 8:54 PM CDTSevere Thunderstorm WarningDLHCass, Crow Wing66 min
Aug 26, 8:57 PM CDTTornado WarningDLHCass, Crow Wing48 min
Aug 26, 9:46 PM CDTTornado WarningDLHAitkin, Crow Wing44 min
Aug 26, 10:32 PM CDTSevere Thunderstorm WarningDLHAitkin, Crow Wing13 min
Aug 26, 10:52 PM CDTSpecial Weather StatementDLHPine38 min
Aug 26, 11:29 PM CDTSevere Thunderstorm WarningDLHPine31 min
Aug 27, 12:27 AM CDTSpecial Weather StatementDLHCass33 min
Aug 27, 12:45 AM CDTSpecial Weather StatementDLHCarlton45 min
Aug 27, 1:21 AM CDTSpecial Weather StatementDLHCarlton39 min
Aug 27, 2:03 AM CDTSpecial Weather StatementDLHAitkin, Carlton42 min
Aug 27, 2:45 AM CDTSpecial Weather StatementDLHCarlton30 min
Aug 26, 8:31 PM CDTSevere Thunderstorm WarningDLHBayfield, Burnett, Douglas, Sawyer, Washburn44 min
Aug 26, 8:40 PM CDTTornado WarningDLHBayfield, Douglas, Sawyer35 min
Aug 26, 8:57 PM CDTSpecial Weather StatementDLHAshland, Iron, Price48 min
Aug 26, 8:59 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield, Sawyer, Washburn31 min
Aug 26, 9:21 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield, Iron, Price, Sawyer54 min
Aug 26, 10:07 PM CDTSevere Thunderstorm WarningDLHAshland, Iron, Price, Sawyer53 min
Aug 26, 11:15 PM CDTSpecial Weather StatementDLHPrice15 min
Aug 27, 12:04 AM CDTSpecial Weather StatementDLHWashburn26 min
Aug 27, 12:14 AM CDTSpecial Weather StatementDLHAshland, Iron31 min
Aug 27, 12:35 AM CDTSpecial Weather StatementDLHWashburn25 min
Aug 27, 1:29 AM CDTSpecial Weather StatementDLHDouglas31 min
Aug 27, 3:01 AM CDTSpecial Weather StatementDLHAshland44 min
Aug 27, 3:18 AM CDTSevere Thunderstorm WarningDLHAshland, Bayfield, Iron42 min
Aug 27, 3:37 AM CDTAreal Flood AdvisoryDLHAshland, Bayfield, Douglas, Iron, Sawyer6 hr
Aug 27, 4:38 AM CDTAreal Flood AdvisoryDLHAshland, Iron, Price, Sawyer3 hr
Aug 27, 4:43 AM CDTSpecial Weather StatementDLHPrice32 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2013Every severe thunderstorm warning in 2013

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.