Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 152, NWS Duluth, MN

July 19, 2011Pine County, Minnesota; Burnett County, Douglas County, Washburn County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at Jul 19, 2011, 3:03 PM CDT for Pine County, Minnesota; Burnett County, Douglas County, Washburn 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: Jul 19, 2011, 3:03 PM CDT (20:03 UTC)
Expired: Jul 19, 2011, 3:30 PM CDT
In force: 27 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Pine County, MN, Burnett County, WI, Douglas County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 83 km from the middle of the area, began a volume at 20:04 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 12:00Z, 8.1 hours before the alert went out and 176 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: 5144 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 830 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

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 Jul 19, 2:51 PM CDT, 12 minutes earlier.

Area forecast discussion, Jul 19, 2:51 PM CDT, 12 minutes before

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Hazardous weather outlook, Jul 19, 4:39 AM CDT, 10 hours 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
439 AM CDT TUE JUL 19 2011

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-201030-
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-
439 AM CDT TUE JUL 19 2011

...THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY AND
TONIGHT...

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT...SOME OF WHICH MAY
BE SEVERE...MAINLY THIS AFTERNOON AND TONIGHT. AN ISOLATED SEVERE
STORM MAY AFFECT AREAS ALONG AND SOUTHWEST OF A LINE FROM LAKE
WINNIBIGOSHISH TO PINE CITY YET THIS MORNING. THE MAIN THREATS WILL BE
DAMAGING WINDS...LARGE HAIL AND HEAVY RAIN. A TORNADO IS ALSO
POSSIBLE THIS AFTERNOON AND EVENING...MAINLY OVER SOUTHERN
PORTIONS OF THE NORTHLAND.

HEAT ADVISORIES AND WARNINGS CONTINUE TO BE IN EFFECT FOR MUCH OF
THE NORTHLAND...EXCEPT THE ARROWHEAD. HEAT INDICES WILL BE HIGHEST
OVER SOUTHERN AREAS TODAY. SEE THE LATEST WEATHER MESSAGE AND
FORECAST FOR ADDITIONAL DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A CHANCE FOR THUNDERSTORMS WEDNESDAY AND WEDNESDAY
NIGHT...SOME OF WHICH MAY BE SEVERE OVER FAR NORTHERN MINNESOTA
WEDNESDAY AND OVER ALL AREAS WEDNESDAY NIGHT. A CHANCE FOR
THUNDERSTORMS WILL RETURN TO THE NORTHLAND THURSDAY NIGHT THROUGH
SUNDAY.

HEAT ADVISORIES AND WARNINGS WILL CONTINUE WEDNESDAY ACROSS MUCH
OF THE NORTHLAND. HEAT INDICES WILL BE HIGHEST OVER SOUTHERN
AREAS TODAY. SEE THE LATEST WEATHER MESSAGE AND FORECAST FOR
ADDITIONAL DETAILS.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT. MOST
LIKELY TIME WILL BE LATER THIS AFTERNOON INTO TONIGHT.

LSZ121-140>148-201030-
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-
357 AM CDT TUE JUL 19 2011

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT...SOME OF WHICH
MAY BE SEVERE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORMS WILL BE POSSIBLE PERIODICALLY THROUGH MUCH OF THE
PERIOD...WITH A BREAK THURSDAY.

MELDE

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 19, 10:37 AM CDT, 4 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1037 AM CDT TUE JUL 19 2011

MNZ010-018-025-026-191600-
KOOCHICHING-NORTH CASS-NORTH ITASCA-SOUTH ITASCA-
1037 AM CDT TUE JUL 19 2011

...RAPIDLY DEVELOPING THUNDERSTORMS...

AT 1028 AM CDT...NUMEROUS THUNDERSTORMS HAVE DEVELOPED AND WERE
IMPACTING NORTHERN MINNESOTA INCLUDING NORTHERN ITASCA AND NORTHERN
CASS COUNTIES...INCLUDING THE LAKE WINNIE AREA. THE STORMS WERE
MOVING EAST AT 25 MPH.

THESE STORMS WILL PRODUCE WIND GUSTS UP TO 30 MPH...FREQUENT CLOUD
TO GROUND LIGHTNING AND HEAVY DOWNPOURS.

* THUNDERSTORMS WILL BE NEAR...
  DAYS HIGH LANDING AND BALL CLUB BY 1100 AM...

BOATERS ON AREA LAKES SHOULD SEEK SHELTER.

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.

LAT...LON 4742 9464 4742 9443 4777 9444 4789 9442
      4745 9346 4719 9386 4726 9468 4732 9468

CC/CP

Special weather statement, Jul 19, 11:09 AM CDT, 3 hours 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1109 AM CDT TUE JUL 19 2011

MNZ010-018-019-025-026-035-037-191700-
CARLTON/SOUTH ST. LOUIS-CENTRAL ST. LOUIS-KOOCHICHING-NORTH
CASS-NORTH ITASCA-NORTHERN AITKIN-SOUTH ITASCA-
1109 AM CDT TUE JUL 19 2011

...THUNDERSTORMS CONTINUE OVER THE NORTHLAND...

AT 1100 AM CDT...NUMEROUS THUNDERSTORMS CONTINUED IMPACTING NORTHERN
MINNESOTA INCLUDING ITASCA COUNTY. THE STORMS WERE GENERALLY NORTH
AND EAST OF GRAND RAPIDS. THESE STORMS WERE MOVING EAST AT 30 MPH
AND WILL MOVE INTO ST. LOUIS COUNTY LATE THIS MORNING.

THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS UP TO 30 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...

* THUNDERSTORMS WILL BE NEAR...
  KEEWATIN AND BALL CLUB BY 1110 AM...
  WARBA AND SILICA BY 1115 AM...
  BENA AND BLACKBERRY BY 1120 AM...
  BOY RIVER AND HIBBING BY 1125 AM...
  GOODLAND AND LITTLE SWAN BY 1135 AM...
  MEADOWLANDS BY 1140 AM...
  BUHL BY 1145 AM...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.

LAT...LON 4742 9444 4745 9442 4799 9444 4799 9442
      4752 9251 4682 9271 4724 9445

CC/CP

Special weather statement, Jul 19, 12:13 PM CDT, 2 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1213 PM CDT TUE JUL 19 2011

MNZ010-018-025-026-035-191745-
KOOCHICHING-NORTH CASS-NORTH ITASCA-NORTHERN AITKIN-SOUTH ITASCA-
1213 PM CDT TUE JUL 19 2011

...THUNDERSTORMS WILL CONTINUE TO LINGER OVER THE LAKE WINNIE AREA...

AT NOON CDT...THUNDERSTORMS CONTINUE TO MOVE OVER NORTHERN
MINNESOTA. STORMS WERE LOCATED IN NORTHERN ITASCA COUNTY...NORTH OF
GRAND RAPIDS AND CONTINUE TO BUILD BACKWARDS TO THE NORTHWEST MOVING
EAST AT 40 MPH.

THIS STORM IS CAPABLE OF PRODUCING WIND GUSTS UP TO 30 MPH...FREQUENT
CLOUD TO GROUND LIGHTNING...HEAVY DOWNPOURS AND PONDING OF WATER IN
LOW AREAS ARE POSSIBLE.

* THE THUNDERSTORM WILL BE NEAR...
  MAX AND OSLUND BY 1210 PM...
  INGER BY 1215 PM...
  SPRING LAKE BY 1220 PM...
  JESSIE LAKE AND BALL CLUB BY 1225 PM...
  BOWSTRING AND TALMOON BY 1230 PM...
  DEER RIVER AND MARCELL BY 1235 PM...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

BOATERS ON LAKE WINNIE AND OTHER AREA LAKES ARE ADVISED TO SEEK
SHELTER FROM THE STORMS. MORE THUNDERSTORMS COULD AFFECT THE AREA
THIS AFTERNOON.

LAT...LON 4742 9463 4742 9443 4797 9443 4765 9316
      4701 9334 4735 9465

CC/CP

Local storm report, Jul 19, 12:46 PM CDT, 2 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1246 PM CDT TUE JUL 19 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1245 PM     TSTM WND GST     10 N GRAND RAPIDS       47.37N 93.52W
07/19/2011  E50 MPH          ITASCA             MN   TRAINED SPOTTER

&&

SCW

Special weather statement, Jul 19, 1:42 PM CDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
142 PM CDT TUE JUL 19 2011

MNZ019-035-037-038-WIZ001-191915-
CARLTON/SOUTH ST. LOUIS-CENTRAL ST. LOUIS-DOUGLAS-NORTHERN
AITKIN-PINE-
142 PM CDT TUE JUL 19 2011

...THUNDERSTORMS APPROACHING THE TWIN PORTS...

AT 137 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
LEADING EDGE OF AN AREA OF STRONG THUNDERSTORMS WAS NEAR
FLOODWOOD...MOVING SOUTHEAST AT 40 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS AROUND 40
MPH...VERY HEAVY DOWNPOURS...AND SMALL HAIL

* THE THUNDERSTORM WILL REACH THE COMMUNITIES OF...
  BROOKSTON AND ALBORN AROUND 155 PM...
  BURNETT AND CLOQUET AROUND 200 PM...
  TWIG...ADOLPH AND HERMANTOWN AROUND 215 PM...
  DULUTH...SUPERIOR HARBORS AROUND 220 PM...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

LAT...LON 4638 9231 4681 9329 4722 9270 4687 9195
      4682 9199 4679 9207 4674 9205

GRANING

Local storm report, Jul 19, 3:03 PM CDT, 0 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
Jul 19, 6:05 AM CDT	Special Weather Statement	DLH	Wadena	115 min
Jul 19, 7:00 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	60 min
Jul 19, 7:05 AM CDT	Areal Flood Advisory	DLH	Cass, Crow Wing	3 hr
Jul 19, 7:30 AM CDT	Special Weather Statement	DLH	Aitkin, Crow Wing	15 min
Jul 19, 7:48 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	42 min
Jul 19, 8:27 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Crow Wing	63 min
Jul 19, 9:40 AM CDT	Special Weather Statement	DLH	Pine	35 min
Jul 19, 10:23 AM CDT	Special Weather Statement	DLH	Cass	37 min
Jul 19, 10:37 AM CDT	Special Weather Statement	DLH	Itasca	23 min
Jul 19, 11:09 AM CDT	Special Weather Statement	DLH	Itasca	51 min
Jul 19, 12:13 PM CDT	Special Weather Statement	DLH	Itasca	32 min
Jul 19, 12:41 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Itasca, Saint Louis	49 min
Jul 19, 1:33 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	42 min
Jul 19, 1:42 PM CDT	Special Weather Statement	DLH	Carlton	33 min
Jul 19, 1:47 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Carlton, Saint Louis	58 min
Jul 19, 2:14 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Pine, Saint Louis	46 min
Jul 19, 3:17 PM CDT	Special Weather Statement	DLH	Itasca	58 min
Jul 19, 3:23 PM CDT	Special Weather Statement	DLH	Aitkin, Carlton	52 min
Jul 19, 4:14 PM CDT	Special Weather Statement	DLH	Pine	46 min
Jul 19, 4:30 PM CDT	Areal Flood Advisory	DLH	Itasca	6 hr
Jul 19, 4:41 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Pine	49 min
Jul 19, 6:31 PM CDT	Special Weather Statement	DLH	Pine	14 min
Jul 19, 6:43 PM CDT	Severe Thunderstorm Warning	DLH	Pine	32 min
Jul 19, 6:52 PM CDT	Tornado Warning	DLH	Pine	27 min
Jul 19, 5:04 PM CDT	Severe Thunderstorm Warning	DLH	Burnett, Douglas, Sawyer, Washburn	41 min
Jul 19, 5:44 PM CDT	Severe Thunderstorm Warning	DLH	Sawyer, Washburn	46 min
Jul 19, 6:42 PM CDT	Severe Thunderstorm Warning	DLH	Burnett, Washburn	33 min
Jul 19, 6:56 PM CDT	Severe Thunderstorm Warning	DLH	Price	19 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Severe Thunderstorm Warnings in Minnesota, 2011 Every severe thunderstorm warning in 2011

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.