Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 134, NWS Duluth, MN

July 29, 2012Saint Louis County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jul 29, 2012, 6:00 PM CDT for Saint Louis County, Minnesota. It was in force for 30 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 29, 2012, 6:00 PM CDT (23:00 UTC)
Expired: Jul 29, 2012, 6:30 PM CDT
In force: 30 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Saint Louis County, MN

The radar

The Duluth radar (KDLH), 86 km from the middle of the area, began a volume at 23:02 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.

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 29, 3:19 PM CDT, 2 hours 41 minutes earlier.

Area forecast discussion, Jul 29, 3:19 PM CDT, 2 hours 41 minutes before

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Hazardous weather outlook, Jul 29, 3:10 PM CDT, 2 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
310 PM CDT SUN JUL 29 2012

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-301100-
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-
310 PM CDT SUN JUL 29 2012

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

.DAY ONE...TONIGHT

STRONG TO SEVERE STORMS ARE POSSIBLE OVER NORTHEAST MINNESOTA
TONIGHT...MAINLY ALONG AND NORTH OF US HIGHWAY 2 FROM BEMIDJI TO
DULUTH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS WILL LINGER INTO MONDAY. THERE IS A POTENTIAL FOR A
FEW STRONG OR SEVERE STORMS OVER THE EASTERN AREAS MONDAY
AFTERNOON.

CHANCES FOR THUNDERSTORMS REMAIN IN THE FORECAST FOR MUCH OF THE
AREA WEDNESDAY THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING.

LSZ121-140>148-301100-
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-
310 PM CDT SUN JUL 29 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS...SOME STRONG TO SEVERE...WILL BE FOUND OVER
NORTHERN LAKE SUPERIOR...MAINLY IN THE AREAS OF SILVER BAY TO
GRAND MARAIS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

CHANCES FOR THUNDERSTORMS REMAIN IN THE FORECAST FOR WESTERN LAKE
SUPERIOR WEDNESDAY THROUGH SATURDAY.

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, Jul 29, 1:48 PM CDT, 4 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
148 PM CDT SUN JUL 29 2012

MNZ012-291930-
NORTHERN COOK/NORTHERN LAKE-
148 PM CDT SUN JUL 29 2012

...STORMS APPROACHING THE SEA GULL LAKES AREA...

AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF RAPIDLY DEVELOPING THUNDERSTORMS 10 MILES NORTH OF THE
INTERNATIONAL BORDER...MOVING SOUTHEAST AT 20 MPH.

EXPECT STORMS TO INCREASE IN COVERAGE OVER THE BOUNDARY WATERS
CANOE AREA WILDERNESS THROUGH 500 PM. A FEW OF THE STORMS WILL HAVE
THE POTENTIAL TO BECOME STRONG OR SEVERE...AS WELL AS CONTAIN BRIEF
HEAVY DOWNPOURS.

TAKE COVER ON LAND UNTIL THESE STORMS HAVE PASSED. DO NOT BE CAUGHT
ON A LAKE IN A THUNDERSTORM.

LAT...LON 4824 9082 4819 9082 4816 9076 4813 9077
      4810 9074 4811 9064 4814 9058 4811 9054
      4811 9020 4802 9021 4794 9093 4807 9131
      4819 9110 4822 9095 4826 9089

GRANING

Special weather statement, Jul 29, 2:49 PM CDT, 3 hours 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
249 PM CDT SUN JUL 29 2012

MNZ012-021-292030-
NORTHERN COOK/NORTHERN LAKE-SOUTHERN COOK/NORTH SHORE-
249 PM CDT SUN JUL 29 2012

...STORMS INCREASING OVER THE BOUNDARY WATERS...

AT 242 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF RAPIDLY DEVELOPING THUNDERSTORMS ALONG THE INTERNATIONAL
BORDER FROM KEKEKABIC LAKE...TO SEA GULL LAKE...AND ROSIE
LAKE...MOVING SOUTHEAST AT 40 MPH.

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

* THUNDERSTORMS WILL BE AFFECT THE AREAS OF...
  EAGLE MOUNTAIN...
  HOVLAND...
  GRAND MARAIS...

TAKE COVER ON LAND UNTIL THESE STORMS HAVE PASSED. DO NOT BE CAUGHT
IN A SMALL BOAT OR CANOE IN A THUNDERSTORM.

LAT...LON 4816 9076 4810 9074 4811 9064 4814 9058
      4811 9054 4812 9014 4810 9003 4803 8998
      4801 8992 4801 8981 4781 8998 4769 9053
      4777 9093 4808 9129 4819 9080

GRANING

Special weather statement, Jul 29, 2:53 PM CDT, 3 hours 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
253 PM CDT SUN JUL 29 2012

MNZ011-012-292030-
NORTH ST. LOUIS-NORTHERN COOK/NORTHERN LAKE-
253 PM CDT SUN JUL 29 2012

...STORMS APPROACHING THE BOUNDARY WATERS CANOE AREA...

AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS ALONG THE INTERNATIONAL BORDER...MOVING SOUTH
AT 35 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING SMALL HAIL...GUSTY
WINDS...FREQUENT CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY
DOWNPOURS...

* THUNDERSTORMS WILL AFFECT THE AREAS OF...
  BASSWOOD LAKE...
  SNOW BANK LAKE...
  CRANE LAKE...
  BUYCK...

TAKE COVER ON LAND UNTIL THESE STORMS HAVE PASSED. DO NOT BE CAUGHT
IN A SMALL BOAT OR CANOE IN A THUNDERSTORM.

LAT...LON 4852 9262 4847 9271 4844 9268 4842 9245
      4835 9246 4824 9237 4825 9229 4835 9229
      4837 9215 4832 9199 4828 9200 4824 9193
      4821 9172 4812 9168 4811 9156 4806 9156
      4807 9125 4775 9094 4815 9270 4854 9281

GRANING

Special weather statement, Jul 29, 3:43 PM CDT, 2 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
343 PM CDT SUN JUL 29 2012

MNZ021-292100-
SOUTHERN COOK/NORTH SHORE-
343 PM CDT SUN JUL 29 2012

...STRONG STORMS ALONG NORTH SHORE OF LAKE SUPERIOR...

AT 341 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LUTSEN TO GRAND
PORTAGE...MOVING SOUTHEAST OVER THE WATERS OF LAKE SUPERIOR AT 30
MPH.

THESE STORMS ARE CAPABLE OF PRODUCING UP TO NICKEL SIZE HAIL...WIND
GUSTS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY
DOWNPOURS...

SEEK SHELTER INDOORS UNTIL THESE STORMS HAVE PASSED.

LAT...LON 4795 8959 4798 8962 4794 8964 4794 8967
      4788 8977 4785 8991 4781 8998 4770 9052
      4758 9079 4771 9094 4804 8974 4802 8961
      4795 8957

GRANING

Special weather statement, Jul 29, 5:42 PM CDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
542 PM CDT SUN JUL 29 2012

MNZ011-292300-
NORTH ST. LOUIS-
542 PM CDT SUN JUL 29 2012

...STRONG THUNDERSTORM ENTERING NORTHERN SECTIONS OF BOUNDARY WATER
   CANOE AREA WILDERNESS...

AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 10 MILES EAST OF CRANE LAKE...MOVING SOUTHEAST AT
20 MPH.

THIS STORM IS CAPABLE OF PRODUCING PEA SIZE HAIL...WIND GUSTS UP TO
40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...

* THE THUNDERSTORM WILL BE NEAR...
   SNOW BAY IN EXTREME NORTHERN ST. LOUIS COUNTY AT 545 PM OTHER
   AREA AFFECTED INCLUDE NORWAY LAKE...GUN LAKE AND BEAR TRACK LAKE.

STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN
A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

LAT...LON 4842 9245 4835 9246 4824 9237 4825 9229
      4832 9232 4835 9229 4837 9215 4835 9213
      4836 9205 4832 9199 4827 9199 4821 9180
      4809 9196 4808 9240 4844 9270 4845 9249

GOHDE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 1:48 PM CDT	Special Weather Statement	DLH	Cook	42 min
Jul 29, 2:49 PM CDT	Special Weather Statement	DLH	Cook	41 min
Jul 29, 2:53 PM CDT	Special Weather Statement	DLH		37 min
Jul 29, 3:43 PM CDT	Special Weather Statement	DLH	Cook	17 min
Jul 29, 5:42 PM CDT	Special Weather Statement	DLH		18 min
Jul 29, 6:28 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.