Alert archive / Wisconsin / Special Weather Statements in 2016

Special Weather Statement, NWS Duluth, MN

August 4, 2016Sawyer County, Washburn County, Wisconsin

NWS Duluth, MN issued this special weather statement at Aug 4, 2016, 6:23 AM CDT for Sawyer County, Washburn County, Wisconsin. It was in force for 37 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
Aug 4, 2016, 6:23 AM CDT (11:23 UTC)
Expired
Aug 4, 2016, 7:00 AM CDT
In force
37 min
Issued by
NWS Duluth, MN

Counties Sawyer County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 117 km from the middle of the area, began a volume at 11:27 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, 11.4 hours before the alert went out and 190 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 2016-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1240 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 2016-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
1240 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1342 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

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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 Aug 4, 5:43 AM CDT, 40 minutes earlier.

Area forecast discussion, Aug 4, 5:43 AM CDT, 40 minutes before
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Hazardous weather outlook, Aug 4, 3:39 AM CDT, 2 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
339 AM CDT THU AUG 4 2016

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-051130-
KOOCHICHING-NORTH ST. LOUIS-NORTHERN COOK/NORTHERN LAKE-
NORTH ITASCA-CENTRAL ST. LOUIS-SOUTHERN LAKE/NORTH SHORE-
SOUTHERN COOK/NORTH SHORE-NORTH CASS-SOUTH ITASCA-SOUTH CASS-
CROW WING-NORTHERN AITKIN-SOUTH AITKIN-CARLTON/SOUTH ST. LOUIS-
PINE-DOUGLAS-BAYFIELD-ASHLAND-IRON-BURNETT-WASHBURN-SAWYER-PRICE-
339 AM CDT THU AUG 4 2016

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

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS THE NORTHLAND TODAY.
THE FIRST OPPORTUNITY FOR SEVERE THUNDERSTORMS WITH THE POTENTIAL
FOR DAMAGING WINDS WILL COME THIS MORNING ACROSS NORTHEAST
MINNESOTA. OVERALL...THE THREAT WILL LIKELY DIMINISH BY MID TO
LATE MORNING...BUT THUNDERSTORMS ARE EXPECTED TO REDEVELOP ALONG
A COLD FRONT THIS AFTERNOON. SEVERE STORMS WILL AGAIN BE POSSIBLE
FROM THE MINNESOTA ARROWHEAD INTO NORTHERN WISCONSIN...WITH THE
BEST CHANCE OF SEVERE STORMS ACROSS NORTHERN WISCONSIN. DAMAGING
WINDS...LARGE HAIL AND EVEN TORNADOES ARE POSSIBLE ACROSS THIS
AREA FROM THIS AFTERNOON INTO EARLY THIS EVENING. LOCALIZED FLASH
FLOODING WILL ALSO BE POSSIBLE ACROSS THE ENTIRE AREA
TODAY...ALTHOUGH THE SOMEWHAT PROGRESSIVE NATURE OF THE STORMS
COULD HELP SOMEWHAT.

A FEW STORMS ARE ALSO POSSIBLE ACROSS THE INTERNATIONAL BORDER
REGION TONIGHT AND INTO FRIDAY...AS COOLER AIR AND MOISTURE SAGS
INTO THAT AREA BEHIND THE DEPARTING SYSTEM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS ARE POSSIBLE ACROSS NORTHEAST MINNESOTA AND
NORTHWEST WISCONSIN MONDAY NIGHT THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS WILL LIKELY BE NEEDED TODAY AND THIS EVENING.

LSZ121-140>148-051130-
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-
339 AM CDT THU AUG 4 2016

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

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS WESTERN LAKE SUPERIOR
TODAY AND EARLY THIS EVENING. THE MOST INTENSE STORMS MAY COME
THIS AFTERNOON...AS THUNDERSTORMS REDEVELOP ALONG AN EASTWARD
MOVING COLD FRONT. LARGE HAIL...DAMAGING WINDS AND WATERSPOUTS
WILL BE POSSIBLE ACROSS THE NEARSHORE WATERS OF WESTERN LAKE
SUPERIOR AS STORMS REDEVELOP DURING THE TIME OF PEAK DAYTIME
HEATING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS ARE POSSIBLE ACROSS NORTHEAST MINNESOTA AND
NORTHWEST WISCONSIN MONDAY NIGHT THROUGH THURSDAY.

DAP

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

In the hours before

Local storm report, Aug 4, 5:56 AM CDT, 27 minutes before
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Local storm report, Aug 4, 6:00 AM CDT, 23 minutes before
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Local storm report, Aug 4, 6:02 AM CDT, 21 minutes before
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Local storm report, Aug 4, 6:13 AM CDT, 10 minutes before
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Local storm report, Aug 4, 6:15 AM CDT, 8 minutes before
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Special weather statement, Aug 4, 6:23 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
Aug 3, 11:18 PM CDTSpecial Weather StatementDLHKoochiching27 min
Aug 4, 12:14 AM CDTSpecial Weather StatementDLHKoochiching31 min
Aug 4, 12:46 AM CDTSpecial Weather StatementDLHItasca29 min
Aug 4, 12:50 AM CDTSpecial Weather StatementDLHKoochiching25 min
Aug 4, 1:11 AM CDTSpecial Weather StatementDLHItasca19 min
Aug 4, 1:17 AM CDTSpecial Weather StatementDLHKoochiching28 min
Aug 4, 1:29 AM CDTSpecial Weather StatementDLHItasca16 min
Aug 4, 1:31 AM CDTSpecial Weather StatementDLHCass14 min
Aug 4, 1:48 AM CDTSpecial Weather StatementDLHItasca12 min
Aug 4, 1:50 AM CDTSpecial Weather StatementDLHCass25 min
Aug 4, 1:56 AM CDTAreal Flood AdvisoryDLHCass, Itasca4 hr
Aug 4, 1:58 AM CDTSpecial Weather StatementDLH32 min
Aug 4, 2:00 AM CDTSpecial Weather StatementDLHSaint Louis30 min
Aug 4, 2:10 AM CDTSpecial Weather StatementDLHCass20 min
Aug 4, 2:16 AM CDTSpecial Weather StatementDLHCass14 min
Aug 4, 2:31 AM CDTSpecial Weather StatementDLHSaint Louis29 min
Aug 4, 2:37 AM CDTSevere Thunderstorm WarningDLHAitkin, Cass, Crow Wing23 min
Aug 4, 3:01 AM CDTSevere Thunderstorm WarningDLHAitkin, Cass, Crow Wing29 min
Aug 4, 3:02 AM CDTSpecial Weather StatementDLHSaint Louis28 min
Aug 4, 3:14 AM CDTSpecial Weather StatementDLHCarlton31 min
Aug 4, 3:28 AM CDTSevere Thunderstorm WarningDLHAitkin, Crow Wing47 min
Aug 4, 3:33 AM CDTSpecial Weather StatementDLHLake27 min
Aug 4, 3:44 AM CDTSpecial Weather StatementDLHCarlton31 min
Aug 4, 4:02 AM CDTSpecial Weather StatementDLHLake28 min
Aug 4, 4:12 AM CDTSpecial Marine WarningDLH63 min
Aug 4, 4:15 AM CDTSevere Thunderstorm WarningDLHCarlton, Lake, Saint Louis45 min
Aug 4, 4:18 AM CDTSevere Thunderstorm WarningDLHAitkin, Carlton, Pine42 min
Aug 4, 5:02 AM CDTSpecial Weather StatementDLHLake28 min
Aug 4, 5:33 AM CDTSpecial Marine WarningDLH57 min
Aug 4, 5:52 AM CDTSpecial Weather StatementDLHCook38 min
Aug 4, 9:48 AM CDTSmall Craft AdvisoryDLH8 hr
Aug 4, 4:59 AM CDTSevere Thunderstorm WarningDLHBayfield, Douglas46 min
Aug 4, 5:02 AM CDTSevere Thunderstorm WarningDLHBayfield, Burnett, Douglas, Sawyer, Washburn43 min
Aug 4, 5:47 AM CDTSpecial Weather StatementDLHAshland, Bayfield28 min
Aug 4, 5:50 AM CDTSpecial Weather StatementDLHSawyer, Washburn25 min
Aug 4, 7:02 AM CDTSpecial Weather StatementDLHSawyer28 min
Aug 4, 9:28 AM CDTSpecial Weather StatementDLHPrice32 min
Aug 4, 10:04 AM CDTSpecial Weather StatementDLHPrice26 min
Aug 4, 10:23 AM CDTSpecial Weather StatementDLHPrice37 min

Nearby

Special Weather Statements in Wisconsin, 2016Every special weather statement in 2016

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.