Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 69, NWS Duluth, MN

June 26, 2006Douglas County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jun 26, 2006, 4:33 PM CDT for Douglas County, Wisconsin. It was in force for 27 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 26, 2006, 4:33 PM CDT (21:33 UTC)
Expired
Jun 26, 2006, 5:00 PM CDT
In force
27 min
Issued by
NWS Duluth, MN
Area
Counties, with a storm outline in the text

County Douglas County, WI

The radar

The Duluth radar (KDLH), 48 km from the middle of the area, began a volume at 21:34 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 12:00Z, 9.6 hours before the alert went out and 257 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 12:00Z on 2006-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, International Fa, MN at 12:00Z on 2006-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.1939Sfc1 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
8 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1789 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
59 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 26, 3:04 PM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jun 26, 3:04 PM CDT, 1 hour 29 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
304 PM CDT MON JUN 26 2006

.DISCUSSION...THUNDERSTORMS HAVE STEADILY INCREASED THIS
AFTERNOON...WITH A FEW STORMS PRODUCING SMALL HAIL.

CAPE OF 1000 TO 1500 J/KG EXISTS ACROSS MUCH OF OUR MINNESOTA
COUNTIES...WITH MUCAPE A BIT HIGHER IN FAR NORTHWEST MN. DEEP
SHEAR IS LACKING OVER MUCH OF OUR CWA SO FAR...WITH ALL BUT
KOOCHICHING COUNTY EXPERIENCING SHEAR LESS THAN 20 KT. RUC
FORECASTS DEEP SHEAR TO INCREASE SLOWLY TO THE SOUTH...INCREASING
TO 15 TO 20 KT ACROSS CASS...AND ITASCA COUNTIES BY 23Z.

STORMS WERE FIRING DUE TO COOLING ALOFT...WITH LIFT PROVIDED BY A STRONG
SHORTWAVE DIVING SOUTHEAST INTO NORTHWEST MINNESOTA AND A COLD
FRONT MOVING INTO FAR NORTHERN MINNESOTA. MORE STORMS HAVE
DEVELOPED ALONG AN WEAK TROUGH OVER DOUGLAS COUNTY IN
WISCONSIN...DOWN TO BURNETT COUNTY. AN INTENSE SMALL STORM
PRODUCED PEA SIZE HAIL AND SOME GUSTY WINDS JUST SOUTH OF
SUPERIOR EARLIER.

SHOWERS AND STORMS SHOULD DIMINISH OVERNIGHT WITH THE LOSS OF
HEATING. THE UPPER TROUGH AND COLD POOL WILL BE OVER OUR MUCH OF
EASTERN MINNESOTA AND NORTHWEST WISCONSIN ON TUESDAY...AND
SHOWERS/STORMS SHOULD INCREASE DURING THE DAY TUESDAY.

THE UPPER TROUGH IS SLOW TO MOVE OUT...AND THE CHANCE FOR
SHOWERS/STORMS WILL CONTINUE INTO WEDNESDAY EVENING. HIGH PRESSURE
WILL EVENTUALLY REPLACE THE UPPER TROUGH AND PROVIDE DRYING.

NORTHWEST FLOW WILL CONTINUE THIS WEEK AND ANOTHER COLD FRONT WILL
BE MOVING IN FRIDAY NIGHT INTO SATURDAY AND BRING ANOTHER CHANCE
FOR THUNDERSTORMS. THE MODELS HAVE HAD SOME SIGNIFICANT
DIFFERENCES WITH THIS FEATURE...AND THE TIMING OF THE
SHOWERS/STORMS WILL LIKELY CHANGE AS WE NEAR THE END OF THE WEEK.

&&

.POINT FORECAST TEMPS/POPS...
DLH  54  69  51  72 /  50  50  40  20
INL  49  72  46  76 /  50  30  20  10
BRD  53  73  48  76 /  50  30  20  10
HYR  53  73  51  75 /  50  60  40  30
ASX  51  72  50  72 /  50  60  40  30

&&

.DLH WATCHES/WARNINGS/ADVISORIES...

MN...NONE.
WI...NONE.
LS...NONE.

MELDE
Hazardous weather outlook, Jun 26, 10:58 AM CDT, 5 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
1058 AM CDT MON JUN 26 2006

LSZ121-140>148-162-MNZ010>012-018>021-025-026-033>038-WIZ001>004-
006>009-271230-
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-
1058 AM CDT MON JUN 26 2006

...SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND THIS EVENING
ACROSS PORTIONS OF THE NORTHLAND...

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WERE INCREASING ACROSS FAR NORTHERN MINNESOTA LATE
THIS MORNING...MAINLY ACROSS KOOCHICHING...ITASCA AND NORTHERN
SAINT LOUIS COUNTIES...AND SHOULD CONTINUE TO INCREASE IN COVERAGE
OVER NORTHERN MINNESOTA AND EVENTUALLY INTO NORTHWEST
WISCONSIN. THE STORMS WILL ALSO INCREASE IN INTENSITY THROUGH THE
EARLY AFTERNOON....ESPECIALLY OVER NORTHERN MINNESOTA...AND SOME
STORMS MAY BECOME SEVERE OVER NORTHEAST MINNESOTA THIS AFTERNOON
INTO THE EVENING...WITH LARGE HAIL AND DAMAGING WINDS THE MAIN
THREATS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF THUNDERSTORMS FROM TUESDAY INTO WEDNESDAY
NIGHT...AND AGAIN ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT IN
NORTHEAST MINNESOTA.

MELDE

In the hours before

Local storm report, Jun 26, 4:04 PM CDT, 29 minutes before
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Local storm report, Jun 26, 4:23 PM CDT, 10 minutes before
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</head>
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  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 3:56 PM CDTSevere Thunderstorm WarningDLHItasca, Koochiching34 min
Jun 26, 4:26 PM CDTSevere Thunderstorm WarningDLHItasca34 min
Jun 26, 4:44 PM CDTSevere Thunderstorm WarningDLHCass16 min
Jun 26, 4:57 PM CDTSevere Thunderstorm WarningDLHItasca30 min
Jun 26, 5:29 PM CDTSpecial Marine WarningDLH31 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2006Every severe thunderstorm warning in 2006

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.