Alert archive / Michigan / Special Weather Statements in 2021

Special Weather Statement, NWS Marquette, MI

October 10, 2021Gogebic County, Michigan

NWS Marquette, MI issued this special weather statement at Oct 10, 2021, 3:57 AM CDT for Gogebic County, Michigan. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 10, 2021, 3:57 AM CDT (08:57 UTC)
Expired
Oct 10, 2021, 4:15 AM CDT
In force
18 min
Issued by
NWS Marquette, MI
Hail
0.25 in
Wind
30

County Gogebic County, MI

The radar

The Duluth radar (KDLH), 179 km from the middle of the area, began a volume at 09:01 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.0 hours before the alert went out and 272 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 00:00Z on 2021-10-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 00:00Z on 2021-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.19395878Sfc1 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
5 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
718 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Oct 10, 3:49 AM CDT, 8 minutes earlier.

Area forecast discussion, Oct 10, 3:49 AM CDT, 8 minutes before
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Hazardous weather outlook, Oct 10, 2:26 AM CDT, 1 hour 31 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
326 AM EDT Sun Oct 10 2021

MIZ001>007-009>014-084-085-110730-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
326 AM EDT Sun Oct 10 2021 /226 AM CDT Sun Oct 10 2021/

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

.DAY ONE...Today and Tonight

Isolated thunderstorms are possible today through this evening. A
stronger storm or two is possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a slight chance of thunderstorms on Monday and Monday
night across central and eastern Upper Michigan.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LSZ162-240>251-263>267-110730-
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-
326 AM EDT Sun Oct 10 2021 /226 AM CDT Sun Oct 10 2021/

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

.DAY ONE...Today and Tonight

Isolated thunderstorms are possible today through this evening. A
stronger storm or two is possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a slight chance of thunderstorms on Monday and Monday
night across central and eastern Lake Superior.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LMZ221-248-250-110730-
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-
326 AM EDT Sun Oct 10 2021

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

.DAY ONE...Today and Tonight

Isolated thunderstorms are possible today through this evening. A
stronger storm or two is possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a slight chance of thunderstorms on Monday and Monday
night

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

JAW

In the hours before

Special weather statement, Oct 10, 3:28 AM CDT, 29 minutes before
Special Weather Statement
National Weather Service Marquette MI
328 AM CDT Sun Oct 10 2021

MIZ009-100900-
Gogebic MI-
328 AM CDT Sun Oct 10 2021

...A strong thunderstorm will impact portions of central Gogebic
County through 400 AM CDT...

At 328 AM CDT, Doppler radar was tracking a strong thunderstorm near
Winchester, or 15 miles southeast of Ironwood, moving north at 35
mph.

HAZARD...Pea size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
  Bessemer and Wakefield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4652 9004 4641 8952 4624 8957 4623 8961
      4633 9010
TIME...MOT...LOC 0828Z 196DEG 28KT 4627 8997

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

JAW
Special weather statement, Oct 10, 3:57 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 3:28 AM CDTSpecial Weather StatementMQTGogebic32 min
Oct 10, 6:35 PM CDTSpecial Marine WarningMQT40 min

Nearby

Special Weather Statements in Michigan, 2021Every special weather statement in 2021

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.