Alert archive / Michigan / Special Weather Statements in 2020
Special Weather Statement, NWS Marquette, MI
NWS Marquette, MI issued this special weather statement at Aug 8, 2020, 5:08 AM EDT for Ontonagon County, Michigan. It was in force for 37 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
- Aug 8, 2020, 5:08 AM EDT (09:08 UTC)
- Expired
- Aug 8, 2020, 5:45 AM EDT
- In force
- 37 min
- Issued by
- NWS Marquette, MI
County Ontonagon County, MI
The radar
The Marquette radar (KMQT), 127 km from the middle of the area, began a volume at 09:09 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
Minneapolis, MN (KMPX), launched 00:00Z, 9.1 hours before the alert went out and 386 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
- 933 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 9.3
The text
As transmitted.
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</html>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 Aug 8, 5:06 AM EDT, 2 minutes earlier.
Area forecast discussion, Aug 8, 5:06 AM EDT, 2 minutes before
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Hazardous Weather Outlook National Weather Service Marquette MI 325 PM EDT Fri Aug 7 2020 MIZ001>007-009>013-084-085-081200- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Houghton- Northern Schoolcraft- 325 PM EDT Fri Aug 7 2020 /225 PM CDT Fri Aug 7 2020/ This Hazardous Weather Outlook is for portions of western Upper Michigan and central Upper Michigan. .DAY ONE...Tonight Thunderstorms are possible late tonight over the western half of Upper Michigan. Some storms could produce gusty winds, small hail and heavy rain. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms are possible Saturday through Monday. Some of the storms could produce some small hail, gusty winds and heavy rain. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. MIZ014-081200- Southern Schoolcraft- 325 PM EDT Fri Aug 7 2020 This Hazardous Weather Outlook is for portions of central Upper Michigan. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms are possible Saturday through Monday. High waves will cause concerns for minor lakeshore flooding and a high swim risk Saturday through Saturday evening for beaches and the shoreline of Schoolcraft County. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LSZ162-240>251-263>267-081200- 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- 325 PM EDT Fri Aug 7 2020 /225 PM CDT Fri Aug 7 2020/ This Hazardous Weather Outlook is for portions of Eastern Lake Superior...Central Lake Superior and Western Lake Superior. .DAY ONE...Tonight Thunderstorms are possible late tonight, mainly over western and central Lake Superior. Some storms could produce gusty winds, small hail and heavy rain. A few gale force gusts to 35 knots are possible over the western half of Lake Superior. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms are possible across all of Lake Superior Saturday through Monday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-081200- 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- 325 PM EDT Fri Aug 7 2020 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Tonight Thunderstorms are possible late tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Thunderstorms are possible Saturday through Monday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. 07
In the hours before
Special weather statement, Aug 8, 3:13 AM EDT, 1 hour 55 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 |
|---|---|---|---|---|
| Aug 7, 9:31 PM EDT | Beach Hazards Statement | MQT | Schoolcraft | 34 hr |
| Aug 8, 3:13 AM EDT | Special Weather Statement | MQT | Gogebic | 77 min |
| Aug 8, 4:20 AM EDT | Special Weather Statement | MQT | Gogebic, Ontonagon | 55 min |
| Aug 8, 5:48 AM EDT | Special Weather Statement | MQT | Baraga, Iron | 72 min |
| Aug 8, 6:55 AM EDT | Special Weather Statement | MQT | Dickinson, Marquette | 65 min |
| Aug 8, 7:45 AM EDT | Special Weather Statement | MQT | Menominee | 60 min |
Nearby
Special Weather Statements in Michigan, 2020Every special weather statement in 2020
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.