Alert archive / Michigan / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 33, NWS Marquette, MI

June 30, 2018Marquette County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Jun 30, 2018, 6:51 PM EDT for Marquette County, Michigan. It was in force for 17 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
Jun 30, 2018, 6:51 PM EDT (22:51 UTC)
Expired
Jun 30, 2018, 7:08 PM EDT
In force
17 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Marquette County, MI

The radar

The Marquette radar (KMQT), 15 km from the middle of the area, began a volume at 22:54 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 30, 5:41 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 246 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, Green Bay/Straub, WI at 12:00Z on 2018-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2313 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, Green Bay/Straub, WI at 12:00Z on 2018-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.193958Sfc1 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
2313 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
1072 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Marquette, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 4:28 PM EDT, 2 hours 23 minutes earlier.

Area forecast discussion, Jun 30, 4:28 PM EDT, 2 hours 23 minutes before
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Hazardous weather outlook, Jun 30, 3:54 PM EDT, 2 hours 57 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
354 PM EDT Sat Jun 30 2018

MIZ001>007-009>014-084-085-012000-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
354 PM EDT Sat Jun 30 2018 /254 PM CDT Sat Jun 30 2018/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Tonight

Scattered to numerous thunderstorms are expected through this
evening west and across all of western and central upper Michigan
through tonight. There is the potential of scattered severe
storms containing large hail, damaging winds and locally heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Thunderstorms are expected again Sunday across all of western and
central upper Michigan. There is the potential of isolated severe
storms containing large hail, damaging winds and locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail or wind
damage from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

LSZ162-240>251-263>267-012000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
354 PM EDT Sat Jun 30 2018 /254 PM CDT Sat Jun 30 2018/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Tonight

Scattered to numerous thunderstorms are expected with a few
strong to severe storms containing large hail and damaging winds.

Locally dense fog is possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Scattered thunderstorms are expected again Sunday. There is the
potential of strong to severe storms containing large hail and
damaging winds.

Locally dense fog will be possible on portions of Lake Superior
Saturday through Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail or wind
damage from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

LMZ221-248-250-012000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
354 PM EDT Sat Jun 30 2018

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Tonight

Scattered thunderstorms are expected late today into tonight.
There is the potential for strong to severe storms containing
large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Scattered thunderstorms are expected again Sunday. There is the
potential of strong to severe storms containing large hail and
damaging winds.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any observed hail or wind
damage from thunderstorms to the National Weather Service in
Marquette. The public may also submit reports to the National
Weather Service via phone, on our website, or through Facebook or
Twitter.

Titus

In the hours before

Local storm report, Jun 30, 1:57 PM EDT, 4 hours 54 minutes before
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Local storm report, Jun 30, 2:38 PM EDT, 4 hours 13 minutes before
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Special weather statement, Jun 30, 5:36 PM EDT, 1 hour 15 minutes before
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Local storm report, Jun 30, 6:24 PM EDT, 27 minutes before
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The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 8:13 PM EDTSpecial Marine WarningMQT62 min
Jun 29, 9:14 PM EDTSpecial Marine WarningMQT91 min
Jun 29, 10:53 PM EDTSpecial Weather StatementMQTKeweenaw82 min
Jun 29, 11:17 PM EDTSpecial Marine WarningMQT88 min
Jun 29, 11:23 PM EDTSpecial Marine WarningMQT82 min
Jun 30, 1:28 AM EDTSpecial Marine WarningMQT92 min
Jun 30, 3:14 AM EDTBeach Hazards StatementMQTSchoolcraft17 hr
Jun 30, 3:16 AM EDTHeat AdvisoryMQTAlger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more17 hr
Jun 30, 10:15 AM EDTSpecial Weather StatementMQTBaraga, Houghton45 min
Jun 30, 10:41 AM EDTSpecial Weather StatementMQTBaraga49 min
Jun 30, 11:06 AM EDTSpecial Weather StatementMQTBaraga, Marquette39 min
Jun 30, 12:11 PM EDTSpecial Marine WarningMQT64 min
Jun 30, 12:35 PM EDTSpecial Marine WarningMQT55 min
Jun 30, 1:01 PM EDTSpecial Marine WarningMQT89 min
Jun 30, 1:15 PM EDTSevere Thunderstorm WarningMQTLuce45 min
Jun 30, 1:58 PM EDTSevere Thunderstorm WarningMQTLuce8 min
Jun 30, 5:36 PM EDTSpecial Weather StatementMQTIron39 min
Jun 30, 5:44 PM EDTSevere Thunderstorm WarningMQTBaraga, Marquette46 min
Jun 30, 6:03 PM EDTSevere Thunderstorm WarningMQTMarquette42 min
Jun 30, 6:09 PM EDTSpecial Marine WarningMQT66 min
Jun 30, 6:24 PM EDTAreal Flood AdvisoryMQTBaraga, Gogebic, Iron, Marquette3 hr
Jun 30, 6:41 PM EDTSevere Thunderstorm WarningMQTMarquette19 min
Jun 30, 6:51 PM EDTSpecial Marine WarningMQT54 min
Jun 30, 6:58 PM EDTSpecial Marine WarningMQT62 min
Jun 30, 7:01 PM EDTSevere Thunderstorm WarningMQTGogebic, Iron, Ontonagon44 min
Jun 30, 7:25 PM EDTSpecial Marine WarningMQT65 min
Jun 30, 7:28 PM EDTSevere Thunderstorm WarningMQTHoughton47 min
Jun 30, 7:36 PM EDTSevere Thunderstorm WarningMQTMarquette11 min
Jun 30, 7:40 PM EDTAreal Flood AdvisoryMQTBaraga, Gogebic, Houghton, Iron, Ontonagon3 hr
Jun 30, 7:46 PM EDTSpecial Marine WarningMQT89 min
Jun 30, 7:51 PM EDTSpecial Marine WarningMQT24 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2018Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.