Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 94, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jul 7, 2016, 7:45 PM CDT for Aitkin County, Cass County, Crow Wing County, Minnesota. It was in force for 45 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 7, 2016, 7:45 PM CDT (00:45 UTC)
- Expired
- Jul 7, 2016, 8:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Aitkin County, MN, Cass County, MN, Crow Wing County, MN
The radar
The Duluth radar (KDLH), 133 km from the middle of the area, began a volume at 00:48 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, 0.8 hours before the alert went out and 205 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.
- Mixed-layer CAPE
- 1024 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 856 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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 7, 7:13 PM CDT, 32 minutes earlier.
Area forecast discussion, Jul 7, 7:13 PM CDT, 32 minutes before
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</html>Hazardous weather outlook, Jul 7, 4:41 PM CDT, 3 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DULUTH MN 441 PM CDT THU JUL 7 2016 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-081345- 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- 441 PM CDT THU JUL 7 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN. .DAY ONE...TONIGHT WIDESPREAD RAIN AND THUNDERSTORMS WILL SPREAD ACROSS MOST OF NORTHERN MINNESOTA AND NORTHWEST WISCONSIN THIS EVENING AND PERSIST INTO FRIDAY MORNING. THERE IS A THREAT OF A FEW SEVERE STORMS IN AREAS FROM LAKE WINNIBIGOSHISH SOUTHWARD TO THE BRAINERD LAKES AREA THIS EVENING... THE PRIMARY THREAT WILL BE DAMAGING WINDS AND LARGE HAIL WITH ANY OF THE STRONGEST STORMS. IN ADDITION...HEAVY RAINFALL IS EXPECTED ACROSS MUCH OF NORTHERN MINNESOTA OVERNIGHT AND FRIDAY MORNING...WITH SOME LOCATIONS PERHAPS PICKING UP 2 TO 3 INCHES OF RAIN. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO PERSIST ON FRIDAY...BUT ANY STORMS THAT FORM ARE EXPECTED TO REMAIN BELOW SEVERE LEVELS. CHANCES FOR THUNDERSTORMS WILL RETURN TO WESTERN AREAS ON SUNDAY AND AREA-WIDE MONDAY THROUGH WEDNESDAY NEXT WEEK. THERE APPEARS TO BE AT LEAST SOME THREAT OF SEVERE STORMS AND HEAVY RAINFALL ACROSS THE NORTHLAND DURING THE EARLY TO MIDDLE PART OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS MAY BE NEEDED THIS EVENING. LSZ121-140>148-081345- 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- 441 PM CDT THU JUL 7 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS WESTERN LAKE SUPERIOR TONIGHT...WITH CLOUD TO WATER LIGHTNING... LOCALLY GUSTY WINDS AND HIGHER WAVE HEIGHTS NEAR ANY STORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY CHANCES FOR THUNDERSTORMS WILL PERSIST ON FRIDAY. AFTER A BRIEF BREAK IN THUNDERSTORM ACTIVITY... CHANCES FOR THUNDERSTORMS WILL RETURN TO WESTERN LAKE SUPERIOR FROM MONDAY THROUGH WEDNESDAY NEXT WEEK. A FEW STORMS COULD BE STRONG OR SEVERE. 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 7, 4:04 PM CDT, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 404 PM CDT THU JUL 7 2016 MNZ010-018-025-026-033>036-072215- KOOCHICHING-NORTH ITASCA-NORTH CASS-SOUTH ITASCA-SOUTH CASS- CROW WING-NORTHERN AITKIN-SOUTH AITKIN- INCLUDING THE CITIES OF...INTERNATIONAL FALLS...BIGFORK... WALKER...GRAND RAPIDS...PINE RIVER...BRAINERD...HILL CITY... AITKIN 404 PM CDT THU JUL 7 2016 ...THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY THROUGH 6 PM... THUNDERSTORMS WILL RAPIDLY INCREASE IN COVERAGE AND INTENSITY ACROSS CENTRAL AND NORTHERN MINNESOTA THROUGH 6 PM THIS EVENING. SOME LOCATIONS AFFECTED INCLUDE THE ENTIRE BRAINERD LAKES AREA... LEADER... BACKUS... LONGVILLE... WOMAN LAKE... CASS LAKE... WALKER... LEECH LAKE... LAKE WINNIBIGOSHISH... BIGFORK... MARCELL AND INTERNATIONAL FALLS. SOME OF THE STORMS COULD BE STRONG OR SEVERE...WITH LARGE HAIL... STRONG AND GUSTY WINDS... FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL. PERSONS IN THESE AREAS SHOULD KEEP CURRENT WITH THE LATEST WEATHER INFORMATION... AND POSSIBLE WARNINGS... DURING THE EVENING. IF YOU HAVE PLANS TO GO OUT ON ONE OF THE NUMEROUS LAKES ACROSS THE REGION...HAVE A PLAN TO GET TO SAFE SHELTER ON SHORE IN A SHORT AMOUNT OF TIME... AND IF YOU ARE AT A CAMPGROUND... HAVE A PLAN TO GET TO A SAFE PLACE AWAY FROM TREES. MILLER
Special weather statement, Jul 7, 5:19 PM CDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
519 PM CDT THU JUL 7 2016
MNZ025-033-034-072230-
SOUTH CASS-NORTH CASS-CROW WING-
519 PM CDT THU JUL 7 2016
...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL CASS AND
NORTHWESTERN CROW WING COUNTIES...
AT 518 PM CDT...A STRONG THUNDERSTORM WAS NEAR NEVIS...OR 19 MILES
SOUTHWEST OF WALKER...MOVING NORTHEAST AT 25 MPH.
WIND GUSTS UP TO 50 MPH...DIME SIZE HAIL...TORRENTIAL RAINFALL...AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
WALKER...PINE RIVER...HACKENSACK...BACKUS...LEECH LAKE...
WOMAN LAKE...OSHAWA...TEN MILE LAKE...CHICKAMAW BEACH...PONTORIA...
WHIPHOLT...PHEASANT LAKE...WEBB LAKE...BIG PORTAGE LAKE AND LAKE ADA.
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 4680 9479 4680 9466 4711 9466 4719 9442
4702 9427 4673 9428 4671 9479
TIME...MOT...LOC 2218Z 245DEG 23KT 4688 9484
MILLERSpecial weather statement, Jul 7, 5:40 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
540 PM CDT THU JUL 7 2016
MNZ036-072300-
SOUTH AITKIN-
540 PM CDT THU JUL 7 2016
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN AITKIN COUNTY...
AT 540 PM CDT...A STRONG THUNDERSTORM WAS 9 MILES NORTH OF MCGRATH...
OR 19 MILES EAST OF MILLE LACS LAKE...MOVING NORTHEAST AT 15 MPH.
WIND GUSTS UP TO 45 MPH...DIME SIZE HAIL...TORRENTIAL RAINFALL...AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
DADS CORNER...LAWLER AND ARTHYDE.
SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL
THIS STORM PASSES.
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 4624 9340 4641 9349 4659 9318 4650 9306
4631 9306
TIME...MOT...LOC 2240Z 242DEG 10KT 4638 9331
MILLERLocal storm report, Jul 7, 6:32 PM CDT, 1 hour 13 minutes before
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</html>Special weather statement, Jul 7, 6:39 PM CDT, 1 hour 6 minutes before
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</html>The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:03 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Crow Wing | 42 min |
| Jul 7, 8:38 PM CDT | Special Weather Statement | DLH | Aitkin | 22 min |
| Jul 7, 8:54 PM CDT | Special Weather Statement | DLH | Aitkin | 36 min |
| Jul 7, 9:23 PM CDT | Special Weather Statement | DLH | Pine | 22 min |
| Jul 7, 9:49 PM CDT | Special Weather Statement | DLH | Aitkin, Pine | 26 min |
| Jul 7, 9:50 PM CDT | Special Weather Statement | DLH | Aitkin | 25 min |
| Jul 7, 10:12 PM CDT | Special Weather Statement | DLH | Cass, Crow Wing | 18 min |
| Jul 7, 10:19 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Pine | 41 min |
| Jul 7, 10:23 PM CDT | Special Weather Statement | DLH | Carlton | 52 min |
| Jul 7, 10:26 PM CDT | Special Weather Statement | DLH | Carlton | 34 min |
| Jul 7, 10:33 PM CDT | Special Weather Statement | DLH | Aitkin | 42 min |
| Jul 7, 11:15 PM CDT | Special Weather Statement | DLH | Aitkin | 30 min |
| Jul 7, 11:18 PM CDT | Special Weather Statement | DLH | 42 min | |
| Jul 8, 12:20 AM CDT | Special Weather Statement | DLH | Pine | 10 min |
| Jul 8, 2:41 PM CDT | Beach Hazards Statement | DLH | Carlton, Saint Louis | 5 hr |
| Jul 7, 10:02 PM CDT | Special Weather Statement | DLH | Burnett | 28 min |
| Jul 7, 10:59 PM CDT | Special Weather Statement | DLH | Douglas | 16 min |
| Jul 7, 11:07 PM CDT | Special Weather Statement | DLH | Washburn | 23 min |
| Jul 7, 11:33 PM CDT | Special Weather Statement | DLH | Sawyer | 27 min |
| Jul 8, 12:03 AM CDT | Special Weather Statement | DLH | Bayfield, Sawyer | 27 min |
| Jul 8, 12:37 AM CDT | Special Weather Statement | DLH | Ashland, Bayfield, Iron | 38 min |
| Jul 8, 1:10 AM CDT | Special Weather Statement | DLH | Iron | 35 min |
| Jul 8, 1:15 AM CDT | Special Weather Statement | DLH | Iron | 30 min |
| Jul 8, 1:41 AM CDT | Special Weather Statement | DLH | Iron | 34 min |
| Jul 8, 1:44 AM CDT | Special Weather Statement | DLH | Bayfield, Sawyer | 31 min |
| Jul 8, 2:03 AM CDT | Special Weather Statement | DLH | Iron | 12 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.