Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 137, NWS Duluth, MN

July 26, 2016Aitkin County, Crow Wing County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jul 26, 2016, 6:49 PM CDT for Aitkin County, Crow Wing County, Minnesota. It was in force for 16 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 26, 2016, 6:49 PM CDT (23:49 UTC)
Expired
Jul 26, 2016, 7:05 PM CDT
In force
16 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Aitkin County, MN, Crow Wing County, MN

The radar

The Duluth radar (KDLH), 121 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 189 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 12:00Z on 2016-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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 12:00Z on 2016-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
111 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
1514 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
24 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 Jul 26, 6:26 PM CDT, 23 minutes earlier.

Area forecast discussion, Jul 26, 6:26 PM CDT, 23 minutes before
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Hazardous weather outlook, Jul 26, 3:56 PM CDT, 2 hours 53 minutes before
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In the hours before

Special weather statement, Jul 26, 5:51 PM CDT, 58 minutes before
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Special weather statement, Jul 26, 6:03 PM CDT, 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
603 PM CDT TUE JUL 26 2016

MNZ034-036-262345-
SOUTH AITKIN-CROW WING-
603 PM CDT TUE JUL 26 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN AITKIN AND
FAR SOUTHERN CROW WING COUNTIES...

AT 603 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM NEAR SAINT MATHIAS...TO 7 MILES NORTHEAST OF LASTRUP...AND
MOVING EAST AT 10 MPH.

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

LOCATIONS IMPACTED INCLUDE...
MILLE LACS LAKE...FORT RIPLEY...CAMP LAKE...PINE CENTER...
SHEPHARD AND ERSKIN LAKE.

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

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

THESE STORMS MAY INTENSIFY. CONTINUE TO MONITOR THE SITUATION FOR
LATER STATEMENTS OR POSSIBLE WARNINGS.

LAT...LON 4625 9408 4630 9369 4625 9362 4624 9380
      4616 9381 4616 9437 4617 9437
TIME...MOT...LOC 2259Z 263DEG 8KT 4616 9419 4612 9395

HUYCK
Special weather statement, Jul 26, 6:06 PM CDT, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
606 PM CDT TUE JUL 26 2016

WIZ004-262330-
IRON-
606 PM CDT TUE JUL 26 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL IRON COUNTY...

AT 606 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING
FROM 6 MILES SOUTH OF UPSON...TO 9 MILES NORTHWEST OF MERCER...TO
WINCHESTER...AND MOVING EAST AT 20 MPH.

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

LOCATIONS IMPACTED INCLUDE...
MERCER...UPSON...LONG LAKE IN IRON COUNTY...FISHER LAKE...ISLAND LAKE
IRON COUNTY AND MANITOWISH.

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

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.

LAT...LON 4622 9043 4624 9043 4624 9048 4625 9053
      4638 9042 4634 9010 4630 8993 4610 8993
TIME...MOT...LOC 2305Z 287DEG 18KT 4629 9045 4626 9018 4624 8991

HUYCK
Special weather statement, Jul 26, 6:32 PM CDT, 17 minutes before
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Local storm report, Jul 26, 6:40 PM CDT, 9 minutes before
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Special weather statement, Jul 26, 6:43 PM CDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 2:13 AM CDTSpecial Weather StatementDLHKoochiching47 min
Jul 26, 2:55 AM CDTSpecial Weather StatementDLH35 min
Jul 26, 3:24 AM CDTSpecial Weather StatementDLHSaint Louis36 min
Jul 26, 3:59 AM CDTSpecial Weather StatementDLHSaint Louis31 min
Jul 26, 4:30 AM CDTSpecial Weather StatementDLHLake30 min
Jul 26, 4:55 AM CDTSevere Thunderstorm WarningDLHCook, Lake35 min
Jul 26, 5:26 AM CDTSpecial Marine WarningDLH64 min
Jul 26, 5:26 AM CDTSevere Thunderstorm WarningDLHCook, Lake19 min
Jul 26, 5:46 AM CDTSpecial Weather StatementDLHLake14 min
Jul 26, 3:40 PM CDTSmall Craft AdvisoryDLH30 hr
Jul 26, 5:51 PM CDTSpecial Weather StatementDLHSaint Louis39 min
Jul 26, 6:03 PM CDTSpecial Weather StatementDLHCrow Wing42 min
Jul 26, 6:43 PM CDTSpecial Weather StatementDLHCrow Wing32 min
Jul 26, 6:06 PM CDTSpecial Weather StatementDLHIron24 min
Jul 26, 6:32 PM CDTSpecial Weather StatementDLHIron43 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016Every 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.