Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 167, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Sep 6, 2016, 12:36 AM CDT for Aitkin County, Itasca County, Saint Louis County, Minnesota. It was in force for 24 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
- Sep 6, 2016, 12:36 AM CDT (05:36 UTC)
- Expired
- Sep 6, 2016, 1:00 AM CDT
- In force
- 24 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Aitkin County, MN, Itasca County, MN, Saint Louis County, MN
The radar
The Duluth radar (KDLH), 85 km from the middle of the area, began a volume at 05:37 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
International Fa, MN (KINL), launched 00:00Z, 5.6 hours before the alert went out and 149 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
- 87 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 6, 12:35 AM CDT, 1 minute earlier.
Area forecast discussion, Sep 6, 12:35 AM CDT, 1 minute before
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</html>Hazardous weather outlook, Sep 5, 3:25 PM CDT, 9 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DULUTH MN 325 PM CDT MON SEP 5 2016 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-061030- 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- 325 PM CDT MON SEP 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT SHOWERS AND THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE TONIGHT. SOME OF THE STORMS MAY BE SEVERE AND PRODUCE LARGE HAIL...DAMAGING WIND...AND VERY HEAVY RAINFALL. A FLOOD WATCH HAS BEEN ISSUED FOR MUCH OF NORTHWEST WISCONSIN INTO PINE COUNTY IN MINNESOTA. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SHOWERS AND THUNDERSTORMS WILL CONTINUE TUESDAY WITH A RISK OF SEVERE STORMS OVER MAINLY NORTHWEST WISCONSIN THROUGH TUESDAY EVENING. IN ADDITION TO THE SEVERE THREAT...THERE WILL BE A CHANCE FOR HEAVY RAIN AND FLOODING WITH THE STORMS. MULTIPLE ROUNDS OF THUNDERSTORMS ARE EXPECTED TUESDAY NIGHT INTO THE WEEKEND. THE RISK FOR SEVERE STORMS BEYOND TUESDAY EVENING IS LOW. THERE WILL ALSO BE A RISK FOR HEAVY RAIN AS REPEATED ROUNDS OF SHOWERS AND STORMS IMPACT THE AREA. AT THIS TIME...NORTHWEST WISCONSIN INTO ADJACENT AREAS OF MINNESOTA LOOK MOSTLY LIKELY TO SEE THE HEAVIEST RAINFALL AND A FLOOD WATCH HAS BEEN ISSUED FOR THESE AREAS TONIGHT INTO TUESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS MAY BE NEEDED LATER THIS EVENING. LSZ121-140>148-061030- 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- 325 PM CDT MON SEP 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS WESTERN LAKE SUPERIOR LATER TONIGHT...SOME OF WHICH MAY BE SEVERE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY MULTIPLE ROUNDS OF THUNDERSTORMS ARE POSSIBLE THROUGH THE WORK WEEK INTO THE WEEKEND. THE BEST CHANCE FOR WIDESPREAD STORMS ACROSS WESTERN LAKE SUPERIOR WILL BE WEDNESDAY NIGHT. INCREASING EASTERLY WINDS MID-WEEK WILL RESULT IN BUILDING WAVES WEDNESDAY AND WEDNESDAY NIGHT...ESPECIALLY AT THE HEAD OF THE LAKE AND AROUND THE APOSTLE ISLANDS. A SMALL CRAFT WILL LIKELY BE NEEDED FOR PARTS OF THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR WEDNESDAY AND WEDNESDAY NIGHT. MELDE/LE 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, Sep 5, 11:34 PM CDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1134 PM CDT MON SEP 5 2016 MNZ025-060500- NORTH CASS- 1134 PM CDT MON SEP 5 2016 ...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL CASS COUNTY... AT 1132 PM CDT...AN AREA OF STRONG THUNDERSTORMS WAS NEAR HACKENSACK... OR 8 MILES SOUTH OF WALKER...MOVING NORTHEAST AT 40 MPH. WIND GUSTS UP TO 35 MPH...PEA SIZE HAIL...HEAVY DOWNPOURS...AND OCCASIONAL CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... WALKER...HACKENSACK...LONGVILLE...FEDERAL DAM...LEECH LAKE... WOMAN LAKE...BOY LAKE...INGUADONA...TEN MILE LAKE...WHIPHOLT... PHEASANT LAKE...LAURA LAKE...WEBB LAKE AND BREVIK. SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL THESE STORMS PASS. THESE STORMS 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 4706 9466 4729 9428 4698 9397 4682 9466 TIME...MOT...LOC 0432Z 237DEG 36KT 4697 9459 GOHDE
Local storm report, Sep 5, 11:45 PM CDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1145 PM CDT MON SEP 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1137 PM HAIL 2 W VIRGINIA 47.51N 92.55W
09/05/2016 M1.00 INCH ST. LOUIS MN PUBLIC
.
&&
SGSpecial weather statement, Sep 6, 12:13 AM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1213 AM CDT TUE SEP 6 2016
MNZ012-019-060545-
CENTRAL ST. LOUIS-NORTHERN COOK/NORTHERN LAKE-
1213 AM CDT TUE SEP 6 2016
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT EAST CENTRAL ST. LOUIS
AND NORTHERN LAKE COUNTIES...
AT 1213 AM CDT...AN AREA OF STRONG THUNDERSTORMS WAS OVER
BABBITT...OR 16 MILES SOUTH OF ELY...MOVING NORTHEAST AT 55 MPH.
WIND GUSTS UP TO 40 MPH...DIME SIZE HAIL...HEAVY DOWNPOURS...AND
OCCASIONAL CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH THESE
STORMS.
THESE STORMS WILL BE NEAR...
BIRCH LAKE AROUND 1235 AM CDT.
FOREST CENTER AROUND 1245 AM CDT.
OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE LAKE
THREE...SAWBILL LANDING...BALD EAGLE LAKE...ISABELLA
LAKE...BUTTERFLY LAKE...GABBRO LAKE... OJIBWAY LAKE...LAKE TWO AND
DISAPPOINTMENT LAKE.
SEEK SHELTER INSIDE A STURDY BUILDING AND AWAY FROM WINDOWS UNTIL
THESE STORMS PASS.
LAT...LON 4802 9138 4762 9116 4759 9119 4749 9192
4771 9210
TIME...MOT...LOC 0513Z 245DEG 46KT 4767 9189
DAPSpecial weather statement, Sep 6, 12:27 AM CDT, 9 minutes before
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</html>Local storm report, Sep 6, 12:30 AM CDT, 6 minutes before
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</html>Local storm report, Sep 6, 12:31 AM CDT, 5 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 |
|---|---|---|---|---|
| Sep 5, 7:16 PM CDT | Special Weather Statement | DLH | 29 min | |
| Sep 5, 7:17 PM CDT | Special Weather Statement | DLH | Carlton | 28 min |
| Sep 5, 7:45 PM CDT | Special Weather Statement | DLH | Saint Louis | 30 min |
| Sep 5, 7:47 PM CDT | Special Weather Statement | DLH | Carlton | 28 min |
| Sep 5, 8:16 PM CDT | Special Weather Statement | DLH | Lake | 29 min |
| Sep 5, 8:25 PM CDT | Special Weather Statement | DLH | Lake | 35 min |
| Sep 5, 8:32 PM CDT | Special Weather Statement | DLH | Itasca | 28 min |
| Sep 5, 8:54 PM CDT | Special Weather Statement | DLH | Lake | 51 min |
| Sep 5, 9:17 PM CDT | Special Weather Statement | DLH | Itasca | 28 min |
| Sep 5, 9:56 PM CDT | Special Weather Statement | DLH | Itasca | 34 min |
| Sep 5, 9:58 PM CDT | Special Weather Statement | DLH | Cass | 32 min |
| Sep 5, 10:34 PM CDT | Special Weather Statement | DLH | Saint Louis | 26 min |
| Sep 5, 11:26 PM CDT | Special Weather Statement | DLH | Saint Louis | 34 min |
| Sep 5, 11:34 PM CDT | Special Weather Statement | DLH | Cass | 26 min |
| Sep 5, 11:36 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 39 min |
| Sep 6, 12:13 AM CDT | Special Weather Statement | DLH | Lake | 32 min |
| Sep 6, 12:21 AM CDT | Severe Thunderstorm Warning | DLH | Lake | 39 min |
| Sep 6, 12:27 AM CDT | Special Weather Statement | DLH | Itasca | 33 min |
| Sep 6, 12:48 AM CDT | Special Weather Statement | DLH | Cook | 27 min |
| Sep 6, 12:56 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Itasca, Saint Louis | 49 min |
| Sep 6, 1:01 AM CDT | Severe Thunderstorm Warning | DLH | Cook, Lake | 44 min |
| Sep 6, 1:27 AM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 33 min |
| Sep 6, 1:34 AM CDT | Severe Thunderstorm Warning | DLH | Cook | 41 min |
| Sep 6, 1:37 AM CDT | Special Marine Warning | DLH | 53 min | |
| Sep 6, 2:02 AM CDT | Special Weather Statement | DLH | Cook | 43 min |
| Sep 6, 2:08 AM CDT | Special Weather Statement | DLH | Lake | 37 min |
| Sep 6, 3:38 PM CDT | Small Craft Advisory | DLH | 36 hr | |
| Sep 6, 1:40 AM CDT | Special Weather Statement | DLH | Bayfield | 35 min |
| Sep 6, 2:05 AM CDT | Special Weather Statement | DLH | Ashland | 25 min |
| Sep 6, 2:30 AM CDT | Special Weather Statement | DLH | Washburn | 45 min |
| Sep 6, 2:34 AM CDT | Special Weather Statement | DLH | Iron | 26 min |
| Sep 6, 4:23 AM CDT | Special Weather Statement | DLH | Ashland | 22 min |
| Sep 6, 4:28 AM CDT | Special Weather Statement | DLH | Bayfield | 32 min |
| Sep 6, 5:45 AM CDT | Special Weather Statement | DLH | Burnett | 45 min |
| Sep 6, 6:12 AM CDT | Special Weather Statement | DLH | Ashland | 33 min |
| Sep 6, 8:44 AM CDT | Areal Flood Advisory | DLH | Ashland, Bayfield, Iron, Price, Sawyer, Washburn | 4 hr |
| Sep 6, 12:33 PM CDT | Areal Flood Advisory | DLH | Ashland, Iron, Price, Sawyer | 4 hr |
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.