Alert archive / Michigan / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 15, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at May 15, 2007, 3:22 AM EDT for Newaygo County, Michigan. It was in force for 23 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
- May 15, 2007, 3:22 AM EDT (07:22 UTC)
- Expired
- May 15, 2007, 3:45 AM EDT
- In force
- 23 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Counties, with a storm outline in the text
County Newaygo County, MI
The radar
The Grand Rapids radar (KGRR), 76 km from the middle of the area, began a volume at 07:24 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, 7.4 hours before the alert went out and 211 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
- 340 J/kg
- Mixed-layer CIN
- -244 J/kg
- Mixed-layer LCL
- 2348 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 184 m²/s²
- 0-3 km storm-relative helicity
- 386 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at May 14, 10:34 PM EDT, 4 hours 48 minutes earlier.
Area forecast discussion, May 14, 10:34 PM EDT, 4 hours 48 minutes before
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</html>Hazardous weather outlook, May 14, 4:40 PM EDT, 10 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 440 PM EDT MON MAY 14 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-151015- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 440 PM EDT MON MAY 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE TONIGHT MAINLY NORTHWEST OF A LINE FROM MUSKEGON TO BIG RAPIDS. A FEW THUNDERSTORMS TOWARD DAYBREAK TUESDAY COULD BE STRONG TO SEVERE ACROSS THAT AREA. THUNDERSTORM MOVEMENT WILL BE EAST SOUTHEAST AT 35 MPH LATE TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORMS ARE LIKELY AREAWIDE ON TUESDAY AS A COLD FRONT COMES THROUGH THE AREA. SOME OF THESE STORMS MAY BE STRONG TO SEVERE... ESPECIALLY JUST SOUTHEAST OF A LINE FROM HOLLAND TO GRAND RAPIDS AND MT. PLEASANT BETWEEN 1 PM AND 7 PM. A FEW THUNDERSTORMS WILL ALSO BE POSSIBLE WEDNESDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED VERY LATE TONIGHT AND ON TUESDAY. LMZ844>849-151015- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE- 440 PM EDT MON MAY 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT WAVES OF 3 TO 5 FEET ARE EXPECTED THROUGH MID EVENING DUE TO STRONG SOUTH SOUTHWEST WINDS AHEAD OF AN APPROACHING COLD FRONT. THE HIGHEST WAVES WILL BE NORTH OF MUSKEGON. THUNDERSTORMS ARE POSSIBLE AFTER MIDNIGHT TONIGHT... MAINLY NORTH OF GRAND HAVEN. THUNDERSTORMS COULD BE STRONG TO SEVERE TOWARD DAYBREAK TUESDAY AND THUNDERSTORM MOVEMENT WILL BE SOUTHEAST AT 35 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORMS ARE LIKELY TUESDAY AS A COLD FRONT COMES THROUGH THE AREA. SOME OF THESE STORMS MAY BE STRONG OR SEVERE... ESPECIALLY SOUTH OF MUSKEGON. LARGE WAVES ARE ALSO EXPECTED ON TUESDAY NIGHT AND WEDNESDAY AS WINDS INCREASE OUT OF THE NORTHWEST BEHIND THE COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED VERY LATE TONIGHT AND ON TUESDAY. LAURENS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 3:34 AM EDT | Severe Thunderstorm Warning | GRR | Montcalm | 41 min |
| May 15, 4:38 AM EDT | Special Weather Statement | GRR | Gratiot | 37 min |
| May 15, 2:00 PM EDT | Special Weather Statement | GRR | Jackson | 30 min |
| May 15, 2:48 PM EDT | Special Weather Statement | GRR | Jackson | 27 min |
| May 15, 3:12 PM EDT | Special Weather Statement | GRR | Lenawee | 33 min |
| May 15, 3:15 PM EDT | Special Weather Statement | GRR | Isabella | 30 min |
| May 15, 5:00 PM EDT | Severe Thunderstorm Warning | GRR | Van Buren | 48 min |
| May 15, 5:44 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Jackson, Kalamazoo | 61 min |
| May 15, 6:10 PM EDT | Tornado Warning | GRR | Calhoun, Kalamazoo | 20 min |
| May 15, 6:29 PM EDT | Severe Thunderstorm Warning | GRR | Eaton, Ingham | 46 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.