Alert archive / Michigan / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 73, NWS Marquette, MI
NWS Marquette, MI issued this severe thunderstorm warning at Sep 21, 2022, 3:55 AM EDT for Alger County, Luce County, Michigan. It was in force for 35 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 21, 2022, 3:55 AM EDT (07:55 UTC)
- Expired
- Sep 21, 2022, 4:30 AM EDT
- In force
- 35 min
- Issued by
- NWS Marquette, MI
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Alger County, MI, Luce County, MI
The radar
The Marquette radar (KMQT), 117 km from the middle of the area, began a volume at 07:56 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, 7.9 hours before the alert went out and 269 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
- 619 J/kg
- Mixed-layer CIN
- -327 J/kg
- Mixed-layer LCL
- 858 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- 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 Marquette, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 21, 3:15 AM EDT, 40 minutes earlier.
Area forecast discussion, Sep 21, 3:15 AM EDT, 40 minutes before
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</html>Hazardous weather outlook, Sep 20, 4:01 PM EDT, 11 hours 54 minutes before
Hazardous Weather Outlook National Weather Service Marquette MI 401 PM EDT Tue Sep 20 2022 MIZ001>007-009>014-084-085-212015- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 401 PM EDT Tue Sep 20 2022 /301 PM CDT Tue Sep 20 2022/ This Hazardous Weather Outlook is for portions of central Upper Michigan and western Upper Michigan. .DAY ONE...Tonight There is a slight chance of thunderstorms tonight. A strong storm or two is possible, with hail being the primary threat. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a high swim risk for Lake Superior beaches on Wednesday. Patchy frost is likely Thursday night. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LSZ162-240>251-263>267-212015- 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- 401 PM EDT Tue Sep 20 2022 /301 PM CDT Tue Sep 20 2022/ This Hazardous Weather Outlook is for portions of Central Lake Superior...Eastern Lake Superior and Western Lake Superior. .DAY ONE...Tonight There is a slight chance of thunderstorms tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Northwest gales of 35 to 40 knots are expected Wednesday afternoon through early Thursday morning. See the latest Marine Weather Message for details. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-212015- 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- 401 PM EDT Tue Sep 20 2022 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Tonight There is a slight chance of thunderstorms tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A few gale force gusts to 35 knots from the northwest are possible Wednesday evening and night. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. JAW
In the hours before
Local storm report, Sep 21, 2:51 AM EDT, 1 hour 4 minutes before
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</html>The office that day
Everything else NWS Marquette, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 2:46 AM EDT | Special Marine Warning | MQT | 44 min | |
| Sep 21, 3:19 AM EDT | Special Marine Warning | MQT | 41 min | |
| Sep 21, 3:54 AM EDT | Special Marine Warning | MQT | 36 min | |
| Sep 21, 4:14 AM EDT | Severe Thunderstorm Warning | MQT | Luce | 31 min |
| Sep 21, 4:35 PM EDT | Small Craft Advisory | MQT | 33 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 2022Every severe thunderstorm warning in 2022
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.