Alert archive / Michigan / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 103, NWS Marquette, MI
NWS Marquette, MI issued this severe thunderstorm warning at Sep 21, 2007, 5:25 PM CDT for Gogebic County, Ontonagon County, Michigan. It was in force for 50 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, 2007, 5:25 PM CDT (22:25 UTC)
- Expired
- Sep 21, 2007, 6:15 PM CDT
- In force
- 50 min
- Issued by
- NWS Marquette, MI
- Area
- Counties, with a storm outline in the text
Counties Gogebic County, MI, Ontonagon County, MI
The radar
The Marquette radar (KMQT), 153 km from the middle of the area, began a volume at 22:28 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 21, 2:46 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.4 hours before the alert went out and 265 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
- 149 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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, 3:22 PM CDT, 2 hours 3 minutes earlier.
Area forecast discussion, Sep 21, 3:22 PM CDT, 2 hours 3 minutes before
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</html>Hazardous weather outlook, Sep 21, 3:38 PM CDT, 1 hour 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 438 PM EDT FRI SEP 21 2007 MIZ001>005-009>012-084-221200- KEWEENAW-ONTONAGON-NORTHERN HOUGHTON-BARAGA-MARQUETTE-GOGEBIC- IRON-DICKINSON-MENOMINEE-SOUTHERN HOUGHTON- 438 PM EDT FRI SEP 21 2007 /338 PM CDT FRI SEP 21 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT STRONG THUNDERSTORMS...SOME SEVERE...WILL DEVELOP AHEAD OF AND ALONG A COLD FRONT AND TRACK EASTWARD ACROSS UPPER MICHIGAN THIS EVENING. EXPECT THE FRONT TO REACH IRONWOOD AND HOUGHTON BETWEEN 5 AND 7 PM EDT...THEN SHIFT EASTWARD INTO CENTRAL UPPER MICHIGAN BY 10 PM EDT. DAMAGING WINDS...ALONG WITH LARGE HAIL AND HEAVY RAIN ARE EXPECTED WITH THE SEVERE STORMS. ISOLATED TORNADOES MAY ALSO OCCUR...ESPECIALLY WITH ANY STORMS THAT FORM AHEAD OF THE COLD FRONT. LOOK FOR SEVERE THUNDERSTORMS TO END BY MIDNIGHT. WIND GUSTS TO 45 MPH ARE EXPECTED OVER THE NORTH HALF OF UPPER MICHIGAN THROUGH LATE AFTERNOON. WEST WIND GUSTS TO 60 MPH ARE POSSIBLE OVER THE KEWEENAW LATE THIS AFTERNOON INTO THIS EVENING. PLEASE SEE THE LATEST NON PRECIPITATION WEATHER STATEMENT FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY AFTERNOON AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED THIS EVENING. LSZ221-241>248-263-264-221200- KEWEENAW BAY AND HURON BAY FROM LOWER ENTRANCE LIGHT TO PORTAGE LAKE TO HURON ISLANDS MI-SAXON HARBOR WI TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO MANITOU ISLAND MI- MANITOU ISLAND TO LOWER ENTRANCE OF PORTAGE CANAL MI- HURON ISLANDS TO MARQUETTE MI-MARQUETTE TO MUNISING MI- MUNISING TO GRAND MARAIS MI-GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR, EAST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE, MN, TO A LINE NORTHWARD FROM MANITOU IS. MI, BEYOND 5 NM AND SOUTH OF THE US/CANADIAN BORDER- LAKE SUPERIOR, EAST OF A LINE FROM MANITOU IS. MI NORTHWARD BEYOND 5 NM AND SOUTH OF THE US/CANADIAN BORDER, EXCLUDING WHITEFISH BAY- 438 PM EDT FRI SEP 21 2007 /338 PM CDT FRI SEP 21 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TONIGHT A GALE WARNING IS IN EFFECT THROUGH SATURDAY WITH SOUTH GALES SHIFTING TO WEST GALES LATE THIS AFTERNOON AND THIS EVENING. WIND GUSTS TO 45 KNOTS ON THE WEST HALF AND GUSTS TO 50 KNOTS ON THE EAST HALF ARE EXPECTED TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY AFTERNOON AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED THIS EVENING. LMZ221-248-262-221200- BAY OF GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- LAKE MICHIGAN...FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE...SOUTHEASTWARD BEYOND 5 NM OFF SHORE TO THE MID- LINE OF THE LAKE- 438 PM EDT FRI SEP 21 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TONIGHT STRONG THUNDERSTORMS WILL DEVELOP AHEAD OF AND ALONG A COLD FRONT THIS EVENING. SOME OF THE STORMS MAY PRODUCE HIGH WIND GUSTS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY AFTERNOON AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. MIZ006-007-013-014-085-221200- ALGER-LUCE-DELTA-SOUTHERN SCHOOLCRAFT-NORTHERN SCHOOLCRAFT- 438 PM EDT FRI SEP 21 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT STRONG THUNDERSTORMS...SOME SEVERE...WILL DEVELOP AHEAD OF AND ALONG A COLD FRONT AND TRACK EASTWARD ACROSS UPPER MICHIGAN THIS EVENING. EXPECT THE FRONT TO REACH CENTRAL UPPER MICHIGAN BY 10 PM EDT. DAMAGING WINDS...ALONG WITH LARGE HAIL AND HEAVY RAIN ARE EXPECTED WITH THE SEVERE STORMS. ISOLATED TORNADOES MAY ALSO OCCUR...ESPECIALLY WITH ANY STORMS THAT FORM AHEAD OF THE COLD FRONT. LOOK FOR SEVERE THUNDERSTORMS TO END BY 2 AM EDT. WIND GUSTS TO 45 MPH ARE EXPECTED OVER THE NORTH HALF OF UPPER MICHIGAN EARLY THIS EVENING. PLEASE SEE THE LATEST NON PRECIPITATION WEATHER STATEMENT FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY AFTERNOON AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED THIS EVENING. MRC/ROLFSON
In the hours before
Special weather statement, Sep 21, 12:16 PM CDT, 5 hours 9 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 20, 9:07 PM CDT | Special Marine Warning | MQT | 68 min | |
| Sep 21, 2:10 AM CDT | Special Marine Warning | MQT | 50 min | |
| Sep 21, 2:56 AM CDT | Special Marine Warning | MQT | 64 min | |
| Sep 21, 6:44 AM CDT | Special Marine Warning | MQT | 61 min | |
| Sep 21, 7:52 AM CDT | Severe Thunderstorm Warning | MQT | Iron | 38 min |
| Sep 21, 11:05 AM CDT | Severe Thunderstorm Warning | MQT | Houghton | 55 min |
| Sep 21, 11:21 AM CDT | Special Marine Warning | MQT | 54 min | |
| Sep 21, 12:08 PM CDT | Special Marine Warning | MQT | 82 min | |
| Sep 21, 12:25 PM CDT | Special Marine Warning | MQT | 65 min | |
| Sep 21, 12:27 PM CDT | Severe Thunderstorm Warning | MQT | Houghton, Keweenaw | 63 min |
| Sep 21, 2:19 PM CDT | Special Marine Warning | MQT | 26 min | |
| Sep 21, 4:59 PM CDT | Special Marine Warning | MQT | 76 min | |
| Sep 21, 5:36 PM CDT | Severe Thunderstorm Warning | MQT | Gogebic, Iron | 24 min |
| Sep 21, 5:44 PM CDT | Special Marine Warning | MQT | 76 min | |
| Sep 21, 6:16 PM CDT | Severe Thunderstorm Warning | MQT | Baraga, Houghton, Ontonagon | 44 min |
| Sep 21, 6:43 PM CDT | Special Marine Warning | MQT | 62 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2007Every severe thunderstorm warning in 2007
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.