Alert archive / Michigan / Winter Storm Warnings in 2008
Winter Storm Warning 11, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this winter storm warning at Dec 20, 2008, 3:32 PM EST for 13 counties in Michigan. It took effect at Dec 21, 2008, 5:00 AM EST. It was in force for 22 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2008, 3:32 PM EST (20:32 UTC)
- In effect from
- Dec 21, 2008, 5:00 AM EST
- Expired
- Dec 22, 2008, 3:28 AM EST
- In force
- 22 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Ionia County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 25 km from the middle of the area, began a volume at 20:37 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
Detroit, MI (KDTX), launched 12:00Z, 8.5 hours before the alert went out and 196 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
- 672 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- -92 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Dec 20, 12:58 PM EST, 2 hours 34 minutes earlier.
Area forecast discussion, Dec 20, 12:58 PM EST, 2 hours 34 minutes before
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</html>Hazardous weather outlook, Dec 20, 6:11 AM EST, 9 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 611 AM EST SAT DEC 20 2008 MIZ037>040-043>046-050>052-056>059-064>067-071>074-211115- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 611 AM EST SAT DEC 20 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT SNOW WILL BE ON THE INCREASE MAINLY AFTER MIDNIGHT TONIGHT. SEVERAL INCHES OF ACCUMULATION ARE POSSIBLE BY DAYBREAK SUNDAY...ESPECIALLY NEAR THE LAKESHORE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WINDS WILL BE ON THE INCREASE SUNDAY WITH GUSTS OVER 40 MPH POSSIBLE. THIS WILL COMBINE WITH THE FALLING SNOW TO CREATE BLOWING AND DRIFTING SNOW. VERY LOW VISIBILITIES ARE POSSIBLE...ESPECIALLY ALONG AND WEST OF HIGHWAY 131. BANDS OF LAKE EFFECT SNOW ARE EXPECTED. SOME OF THE SNOW COULD BE HEAVY AT TIMES. WIND CHILL VALUES WILL BE BELOW ZERO. ANOTHER STORM COULD LEAD TO ACCUMULATING SNOW TUESDAY INTO WEDNESDAY. ANOTHER LOW PRESSURE SYSTEM COULD ARRIVE LATER THURSDAY INTO FRIDAY WITH SNOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SNOWFALL REPORTS WOULD BE HELPFUL. LMZ844>849-211115- 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- 611 AM EST SAT DEC 20 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT WARNINGS HAVE BEEN POSTED FOR GALE FORCE WINDS AND HEAVY FREEZING SPRAY LATER TONIGHT. LOW VISIBILITIES DUE TO FALLING SNOW ARE FORECASTED. CONDITIONS WILL BE HAZARDOUS FOR SMALL CRAFT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THE GALE FORCE WINDS AND FREEZING SPRAY WILL PERSIST INTO MONDAY MORNING. IN ADDITION LOW VISIBILITIES ARE EXPECTED DUE TO LAKE EFFECT SNOW SHOWERS.
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 4:37 AM EST | Gale Warning | GRR | 48 hr | |
| Dec 20, 4:37 AM EST | Heavy Freezing Spray Warning | GRR | 48 hr | |
| Dec 20, 3:32 PM EST | Winter Weather Advisory | GRR | Calhoun, Clare, Clinton, Eaton, Gratiot, Ingham and 6 more | 36 hr |
Nearby
Winter Storm Warnings in Michigan, 2008Every winter storm 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.