Alert archive / Michigan / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 16, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 25, 2008, 3:21 PM EDT for Clinton County, Gratiot County, Michigan. It was in force for 24 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
- Apr 25, 2008, 3:21 PM EDT (19:21 UTC)
- Expired
- Apr 25, 2008, 3:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
Counties Clinton County, MI, Gratiot County, MI
The radar
The Grand Rapids radar (KGRR), 81 km from the middle of the area, began a volume at 19:21 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 12:00Z, 7.4 hours before the alert went out and 319 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Apr 25, 12:55 PM EDT, 2 hours 26 minutes earlier.
Area forecast discussion, Apr 25, 12:55 PM EDT, 2 hours 26 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1157 AM EDT FRI APR 25 2008 MIZ037>040-043>046-050>052-056>059-064>067-071>074-260830- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 1157 AM EDT FRI APR 25 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS MAY REDEVELOP THIS AFTERNOON AS VERY WARM AND UNSTABLE CONDITIONS DEVELOP... BUT THUNDERSTORMS WILL BE MORE LIKELY TONIGHT WHEN A STRONG COLD FRONT SWEEPS THROUGH THE AREA. SEVERE WEATHER WITH DAMAGING WINDS AND LARGE HAIL IS POSSIBLE THIS AFTERNOON AND TONIGHT. STORM MOVEMENT WILL BE NORTHEAST AT 40 MPH. THE MAIN TIME FRAME FOR SEVERE WEATHER IS FROM 8 PM TO 2 AM. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ACCUMULATING WET SNOW IS POSSIBLE LATE SUNDAY NIGHT INTO MONDAY AND MONDAY NIGHT. FREEZING TEMPERATURES ARE POSSIBLE MONDAY... TUESDAY... AND WEDNESDAY NIGHTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT. LMZ844>849-260830- ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI- HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI- WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI- 1157 AM EDT FRI APR 25 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT INCREASING SOUTHERLY WINDS WILL BRING CONDITIONS HAZARDOUS TO SMALL CRAFT... PARTICULARLY TONIGHT. GALE FORCE SOUTHWEST WINDS MAY DEVELOP LATE TONIGHT. SCATTERED THUNDERSTORM ACTIVITY IS POSSIBLE THIS AFTERNOON. THUNDERSTORMS ARE LIKELY TONIGHT WHEN A STRONG COLD FRONT SWEEPS THROUGH THE AREA. SEVERE WEATHER WITH DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE. STORM MOVEMENT WILL BE NORTHEAST AT 40 MPH. LIGHTNING COULD BE FREQUENT. A VERY WARM AND MOIST AIR MASS MOVING ACROSS THE LAKE COULD RESULT IN AREAS OF FOG THIS AFTERNOON AND THIS EVENING. SOME OF THE FOG COULD BE DENSE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY GALE FORCE WINDS ARE POSSIBLE SATURDAY... PARTICULARLY NORTH OF MUSKEGON. STRONG WINDS AND LARGE WAVES ARE ALSO LIKELY SUNDAY NIGHT THROUGH MONDAY. WINDS COULD REACH GALE FORCE DURING THIS TIME. WET SNOW IS POSSIBLE LATE SUNDAY NIGHT INTO MONDAY AND MONDAY NIGHT. FREEZING TEMPERATURES ARE POSSIBLE MONDAY... TUESDAY... AND WEDNESDAY NIGHTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT. MEADE
In the hours before
Special weather statement, Apr 25, 2:02 PM EDT, 1 hour 19 minutes before
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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
207 PM EDT FRI APR 25 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0207 PM HAIL WAYLAND 42.67N 85.64W
04/25/2008 E1.00 INCH ALLEGAN MI FIRE DEPT/RESCUE
&&
RSUTTLELocal storm report, Apr 25, 2:08 PM EDT, 1 hour 13 minutes before
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</html>Local storm report, Apr 25, 2:27 PM EDT, 54 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 5:15 AM EDT | Special Weather Statement | GRR | Muskegon, Oceana | 60 min |
| Apr 25, 6:15 AM EDT | Special Weather Statement | GRR | Muskegon, Oceana | 60 min |
| Apr 25, 7:16 AM EDT | Special Weather Statement | GRR | Mecosta, Newaygo | 59 min |
| Apr 25, 8:04 AM EDT | Special Weather Statement | GRR | Clare, Isabella, Mecosta | 56 min |
| Apr 25, 8:51 AM EDT | Special Weather Statement | GRR | Isabella | 24 min |
| Apr 25, 1:33 PM EDT | Special Weather Statement | GRR | Lake, Mason, Muskegon, Newaygo, Oceana, Ottawa | 57 min |
| Apr 25, 2:02 PM EDT | Special Weather Statement | GRR | Ionia, Kent, Lake, Mecosta, Montcalm, Newaygo and 2 more | 73 min |
| Apr 25, 2:11 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Ionia, Kent | 34 min |
| Apr 25, 2:58 PM EDT | Special Weather Statement | GRR | Gratiot, Ionia, Isabella, Montcalm | 62 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2008Every severe thunderstorm warning in 2008
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.