Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 133, NWS Duluth, MN

July 24, 2016Aitkin County, Carlton County, Pine County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jul 24, 2016, 1:29 AM CDT for Aitkin County, Carlton County, Pine County, Minnesota. It was in force for 61 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 24, 2016, 1:29 AM CDT (06:29 UTC)
Expired: Jul 24, 2016, 2:30 AM CDT
In force: 61 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Aitkin County, MN, Carlton County, MN, Pine County, MN

The radar

The Duluth radar (KDLH), 71 km from the middle of the area, began a volume at 06:31 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, 6.5 hours before the alert went out and 184 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: 417 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 250 m²/s²
0-3 km storm-relative helicity: 384 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.9

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 24, 12:51 AM CDT, 38 minutes earlier.

Area forecast discussion, Jul 24, 12:51 AM CDT, 38 minutes before

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Hazardous weather outlook, Jul 23, 8:55 PM CDT, 4 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
855 PM CDT SAT JUL 23 2016

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-241030-
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-
855 PM CDT SAT JUL 23 2016

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

.DAY ONE...TONIGHT

STRONG TO SEVERE STORMS REMAIN POSSIBLE ACROSS THE NORTHLAND
TONIGHT. THESE STORMS WILL BE MOST LIKELY FROM THE BRAINERD LAKES
TO INTERNATIONAL FALLS THROUGH 2 AM...DEVELOPING EAST OF THERE
LATE THIS EVENING AND OVERNIGHT. THE MAIN THREATS ARE DAMAGING
WIND...LIGHTNING...AND A PERIOD OF HEAVY RAIN. SOME OF THE
STRONGER STORMS MAY ALSO CONTAIN HAIL. A FLASH FLOOD WATCH REMAIN
IN EFFECT FOR AITKIN...CROW WING...CASS...AND SOUTHERN ITASCA
COUNTIES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ISOLATED WEAK STORMS ARE POSSIBLE ACROSS FAR NORTHERN MINNESOTA
SUNDAY AFTERNOON THROUGH THE EARLY EVENING.

PERIODS OF THUNDERSTORMS ARE POSSIBLE ACROSS NORTHEAST MINNESOTA AND
NORTHWEST WISCONSIN TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS MAY BE NEEDED TONIGHT.

LSZ121-140>148-241030-
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-
855 PM CDT SAT JUL 23 2016

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

.DAY ONE...TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS WESTERN LAKE
SUPERIOR TONIGHT...WITH THE MAIN THREATS BEING DAMAGING
WINDS...TORRENTIAL RAINFALL AND LARGE HAIL. LOCALLY HIGHER WAVES
CAN BE EXPECTED NEAR STORMS.

STRONG EAST TO NORTHEAST WINDS OVER THE WESTERN TIP OF LAKE
SUPERIOR...AND THE RESULTING WAVES...WILL CAUSE HAZARDOUS CONDITIONS
FOR SMALL CRAFT THROUGH THIS EVENING. A SMALL CRAFT ADVISORY IS IN
EFFECT. PLEASE READ THE LATEST MARINE WEATHER MESSAGE FOR MORE
INFORMATION.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

PERIODS OF THUNDERSTORMS ARE POSSIBLE ACROSS WESTERN LAKE SUPERIOR
TUESDAY THROUGH FRIDAY.

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 23, 9:27 PM CDT, 4 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
927 PM CDT SAT JUL 23 2016

MNZ018-025-026-033-034-240400-
NORTH ITASCA-NORTH CASS-SOUTH ITASCA-SOUTH CASS-CROW WING-
INCLUDING THE CITIES OF...BIGFORK...WALKER...GRAND RAPIDS...
PINE RIVER...BRAINERD
927 PM CDT SAT JUL 23 2016

...STRONG STORMS HEADED FOR WALKER...THE BRAINERD LAKES AND
LONGVILLE AREAS...

A CLUSTER OF STRONG STORMS WILL MOVE EAST INTO THE WALKER...CASS
LAKE...PINE RIVER...AND LEADER AREAS BETWEEN MIDNIGHT AND 2 AM.
THE STORMS...IF THEY MAINTAIN THEIR CURRENT STRENGTH...WILL BE
CAPABLE OF PRODUCING WIND GUSTS OVER 40 MPH...SMALL HAIL...HEAVY
DOWNPOURS AND FREQUENT LIGHTNING. OTHER AREAS THAT WILL BE
IMPACTED BY THESE STORMS INCLUDE LEECH LAKE AND LAKE
WINNIBIGOSHISH.

MELDE

Special weather statement, Jul 23, 11:25 PM CDT, 2 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1125 PM CDT SAT JUL 23 2016

MNZ025-033-034-240500-
SOUTH CASS-NORTH CASS-CROW WING-
1125 PM CDT SAT JUL 23 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN CASS AND
WESTERN CROW WING COUNTIES...

AT 1124 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM NEAR HACKENSACK...TO NEAR STAPLES...AND MOVING EAST AT 35 MPH.

WIND GUSTS UP TO 40 MPH...HEAVY DOWNPOURS...PEA SIZE HAIL...AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BRAINERD...WALKER...BAXTER...BREEZY POINT...PEQUOT LAKES...
CROSSLAKE...NISSWA...PINE RIVER...PILLAGER...FIFTY LAKES...WABEDO...
HACKENSACK...BACKUS...POPLAR...LONGVILLE...WOMAN LAKE...MERRIFIELD...
GULL LAKE...LEADER AND LEECH LAKE.

SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL
THESE STORMS PASS.

LAT...LON 4680 9479 4680 9466 4711 9465 4714 9398
      4623 9420 4624 9438 4627 9434 4629 9435
      4633 9443 4630 9454 4633 9462 4636 9467
      4635 9472 4638 9473 4639 9478
TIME...MOT...LOC 0424Z 263DEG 28KT 4696 9459 4634 9474

MELDE

Special weather statement, Jul 23, 11:55 PM CDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1155 PM CDT SAT JUL 23 2016

MNZ033-034-240515-
SOUTH CASS-CROW WING-
1155 PM CDT SAT JUL 23 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CASS AND
SOUTHWESTERN CROW WING COUNTIES...

AT 1154 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR GULL
LAKE...OR 11 MILES WEST OF BRAINERD...MOVING EAST AT 40 MPH.

WIND GUSTS UP TO 50 MPH...HALF INCH HAIL...TORRENTIAL RAINFALL...AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BRAINERD...BAXTER...PEQUOT LAKES...NISSWA...IRONTON...PILLAGER...
GULL LAKE...MERRIFIELD...UPPER SOUTH LONG LAKE...SOUTH LONG LAKE...
SYLVAN...EAST GULL LAKE...LAKE SHORE...RIVERTON...TROMMALD...
WOODROW...LOWER MISSION LAKE AND UPPER MISSION LAKE.

IF YOU ARE ON OR NEAR ONE OF THE MANY AREA LAKES...GET OFF OF THE
WATER IMMEDIATELY AND SEEK SHELTER ON SHORE INSIDE A STURDY BUILDING.

THIS STORM MAY INTENSIFY...MONITOR LOCAL RADIO AND TV STATIONS...AS
WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND
POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4652 9459 4657 9401 4622 9402 4624 9438
      4627 9434 4629 9435 4630 9439 4632 9440
      4633 9443 4633 9446 4632 9447 4630 9453
      4632 9457
TIME...MOT...LOC 0454Z 268DEG 33KT 4640 9442

 MILLER

Special weather statement, Jul 24, 12:26 AM CDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1226 AM CDT SUN JUL 24 2016

MNZ035-036-240545-
SOUTH AITKIN-NORTHERN AITKIN-
1226 AM CDT SUN JUL 24 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT AITKIN COUNTY...

AT 1225 AM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM 8 MILES NORTHEAST OF OUTING...TO NEAR UPPER SOUTH LONG
LAKE...AND MOVING EAST AT 40 MPH.

WIND GUSTS UP TO 55 MPH...DIME SIZE HAIL...TORRENTIAL RAINFALL...AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BIG SANDY LAKE...MILLE LACS LAKE...AITKIN...HILL CITY...MCGREGOR...
MALMO...PALISADE...TAMARACK...MCGRATH...LIBBY...JACOBSON...SWATARA...
GLEN...WAUKENABO...BALL BLUFF...WEALTHWOOD...KIMBERLY...BALSAM...
BAIN AND SAVANNA PORTAGE STATE PARK.

SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL
THESE STORMS PASS. GET OFF AREA LAKES IMMEDIATELY AND SEEK SHELTER
ON SHORE INSIDE A STURDY SHELTER.  STAY TUNED TO THE LATEST WEATHER
INFORMATION AS WARNINGS MAY BE REQUIRED FOR PARTS OF AITKIN COUNTY.

LAT...LON 4659 9379 4660 9378 4702 9378 4702 9311
      4616 9310 4615 9343 4624 9343 4625 9344
      4624 9380
TIME...MOT...LOC 0525Z 271DEG 31KT 4693 9387 4628 9394

 MILLER

Local storm report, Jul 24, 12:27 AM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1227 AM CDT SUN JUL 24 2016

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

1220 AM     TSTM WND GST     5 NE BRAINERD           46.41N 94.12W
07/24/2016  M51 MPH          CROW WING          MN   ASOS

&&

SGOHDE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 11:25 PM CDT	Special Weather Statement	DLH	Cass	35 min
Jul 23, 11:55 PM CDT	Special Weather Statement	DLH	Crow Wing	20 min
Jul 24, 12:03 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	42 min
Jul 24, 12:26 AM CDT	Special Weather Statement	DLH	Aitkin	19 min
Jul 24, 12:33 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin	57 min
Jul 24, 1:34 AM CDT	Special Weather Statement	DLH	Saint Louis	11 min
Jul 24, 1:56 AM CDT	Special Weather Statement	DLH	Saint Louis	34 min
Jul 24, 2:14 AM CDT	Severe Thunderstorm Warning	DLH	Pine	24 min
Jul 24, 2:24 AM CDT	Special Weather Statement	DLH		21 min
Jul 24, 2:47 AM CDT	Special Weather Statement	DLH		13 min
Jul 24, 2:17 AM CDT	Special Weather Statement	DLH	Burnett	28 min
Jul 24, 2:53 AM CDT	Special Weather Statement	DLH	Burnett, Washburn	22 min
Jul 24, 3:14 AM CDT	Special Weather Statement	DLH	Washburn	16 min
Jul 24, 3:34 AM CDT	Special Weather Statement	DLH	Sawyer	26 min
Jul 24, 3:58 AM CDT	Special Weather Statement	DLH	Sawyer	17 min
Jul 24, 4:15 AM CDT	Special Weather Statement	DLH	Iron, Price	15 min
Jul 24, 4:30 AM CDT	Special Weather Statement	DLH	Iron, Price	15 min
Jul 24, 4:45 AM CDT	Special Weather Statement	DLH	Iron, Price	15 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016 Every severe thunderstorm warning 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.