Alert archive / Minnesota / Special Marine Warnings in 2018

Special Marine Warning 21, NWS Duluth, MN

July 8, 2018

NWS Duluth, MN issued this special marine warning at Jul 8, 2018, 9:31 AM CDT. It was in force for 59 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 8, 2018, 9:31 AM CDT (14:31 UTC)
Expired
Jul 8, 2018, 10:30 AM CDT
In force
59 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
40.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Jul 8, 7:19 AM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, Jul 8, 7:19 AM CDT, 2 hours 12 minutes before
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Hazardous weather outlook, Jul 8, 3:38 AM CDT, 5 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
338 AM CDT Sun Jul 8 2018

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-091030-
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-
338 AM CDT Sun Jul 8 2018

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Today and Tonight

Strong to severe thunderstorms may produce large hail and
damaging winds across northern Minnesota this afternoon. These
storms will produce very heavy rainfall which could lead to flash
flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms will be possible over portions of the area
Wednesday into Thursday, western areas Wednesday, all areas
Wednesday night, and eastern areas Thursday. Some of these storms
could be strong. Another chance for thunderstorms will be
possible Friday night into Saturday night.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotters are encouraged to report hail of any size,
damaging winds, and rainfall amounts to the National Weather
Service.

LSZ121-140>148-091030-
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-
338 AM CDT Sun Jul 8 2018

This Hazardous Weather Outlook is for portions of the Nearshore
waters of western Lake Superior.

.DAY ONE...Today and Tonight

A Small Craft Advisory remains in effect through this evening
along much of the North Shore. See the latest Nearshore Marine
Forecast and Marine Weather Message for more details.

Thunderstorms will be possible along portions of the North Shore
this morning and all areas this afternoon into tonight. Some of
the storms could be strong to severe with hail, strong winds, and
frequent lightning the main threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms will be possible over the area Wednesday into
Thursday and again Saturday.

Melde/Wolfe

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 8, 5:43 AM CDT, 3 hours 48 minutes before
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Special weather statement, Jul 8, 8:16 AM CDT, 1 hour 15 minutes before
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Local storm report, Jul 8, 8:26 AM CDT, 1 hour 5 minutes before
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Local storm report, Jul 8, 8:39 AM CDT, 52 minutes before
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Special weather statement, Jul 8, 8:40 AM CDT, 51 minutes before
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Local storm report, Jul 8, 8:48 AM CDT, 43 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 5:43 AM CDTSpecial Weather StatementDLHKoochiching32 min
Jul 8, 6:06 AM CDTSevere Thunderstorm WarningDLHKoochiching39 min
Jul 8, 6:45 AM CDTSevere Thunderstorm WarningDLHKoochiching, Saint Louis45 min
Jul 8, 7:35 AM CDTSevere Thunderstorm WarningDLHLake, Saint Louis40 min
Jul 8, 8:16 AM CDTSpecial Weather StatementDLH14 min
Jul 8, 8:20 AM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Saint Louis40 min
Jul 8, 8:40 AM CDTSpecial Weather StatementDLHLake35 min
Jul 8, 8:56 AM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Lake, Saint Louis49 min
Jul 8, 8:58 AM CDTSevere Thunderstorm WarningDLHCook, Lake47 min
Jul 8, 9:09 AM CDTSevere Thunderstorm WarningDLHCook36 min
Jul 8, 9:42 AM CDTSevere Thunderstorm WarningDLHCook, Lake, Saint Louis25 min
Jul 8, 10:09 AM CDTSpecial Weather StatementDLH36 min
Jul 8, 10:33 AM CDTAreal Flood WarningDLHKoochiching, Saint Louis3 hr
Jul 8, 10:40 AM CDTSpecial Weather StatementDLHCook35 min
Jul 8, 1:18 PM CDTSpecial Weather StatementDLHCook42 min
Jul 8, 3:36 PM CDTSpecial Weather StatementDLHItasca24 min
Jul 8, 4:36 PM CDTSevere Thunderstorm WarningDLHSaint Louis24 min
Jul 8, 4:47 PM CDTSevere Thunderstorm WarningDLHSaint Louis43 min
Jul 8, 5:19 PM CDTSpecial Marine WarningDLH26 min
Jul 8, 5:25 PM CDTSevere Thunderstorm WarningDLHLake, Saint Louis35 min
Jul 8, 5:27 PM CDTSevere Thunderstorm WarningDLHLake, Saint Louis33 min
Jul 8, 5:38 PM CDTSpecial Marine WarningDLH37 min
Jul 8, 5:47 PM CDTSpecial Weather StatementDLHCass13 min
Jul 8, 6:12 PM CDTSevere Thunderstorm WarningDLHCass, Itasca48 min
Jul 8, 6:16 PM CDTSpecial Marine WarningDLH44 min
Jul 8, 6:45 PM CDTSevere Thunderstorm WarningDLHAitkin, Itasca45 min
Jul 8, 6:59 PM CDTSpecial Marine WarningDLH91 min
Jul 8, 6:15 PM CDTSpecial Weather StatementDLHBayfield30 min
Jul 8, 6:46 PM CDTSpecial Weather StatementDLHBayfield29 min

Nearby

Special Marine Warnings in Minnesota, 2018Every special marine warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.