Alert archive / Michigan / Winter Storm Warnings in 2006

Winter Storm Warning 1, NWS Grand Rapids, MI

February 15, 200617 counties in Michigan

NWS Grand Rapids, MI issued this winter storm warning at Feb 15, 2006, 3:49 PM EST for 17 counties in Michigan. It took effect at Feb 16, 2006, 12:00 AM EST. It was in force for 21 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
Feb 15, 2006, 3:49 PM EST (20:49 UTC)
In effect from
Feb 16, 2006, 12:00 AM EST
Expired
Feb 16, 2006, 9:22 PM EST
In force
21 hr
Issued by
NWS Grand Rapids, MI

Counties Allegan County, MI, Barry County, MI, Clare County, MI, Clinton County, MI, Gratiot County, MI, Ionia County, MI, Isabella County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI

The radar

The Grand Rapids radar (KGRR), 53 km from the middle of the area, began a volume at 20:46 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, 8.8 hours before the alert went out and 243 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2006-02-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2006-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -88 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
139 kt
0-1 km storm-relative helicity
-88 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Feb 15, 11:15 AM EST, 4 hours 34 minutes earlier.

Area forecast discussion, Feb 15, 11:15 AM EST, 4 hours 34 minutes before
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Hazardous weather outlook, Feb 15, 7:15 AM EST, 8 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
715 AM EST WED FEB 15 2006

LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-161200-
ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND-
HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL-
WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE-MASON-LAKE-OSCEOLA-
CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT-
OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN-
KALAMAZOO-CALHOUN-JACKSON-
715 AM EST WED FEB 15 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

2 TO 4 INCHES OF SNOW IS EXPECTED TONIGHT NORTH OF A LINE FROM
ROUGHLY HOLLAND TO ST JOHNS. A MIXTURE OF FREEZING RAIN AND SLEET IS
LIKELY IN A BAND FROM SOUTH HAVEN TO HASTINGS TO LANSING... WITH
SIGNIFICANT ICE ACCUMULATIONS POSSIBLE. PRIMARILY RAIN IS EXPECTED
SOUTH OF A LINE FROM SOUTH HAVEN TO LANSING TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A MAJOR WINTER STORM WILL IMPACT SOUTHWEST MICHIGAN THURSDAY AND
THURSDAY NIGHT. STRENGTHENING LOW PRESSURE IS FORECAST TO TRACK FROM
CENTRAL ILLINOIS TO SOUTHEAST MICHIGAN DURING THIS TIME.

6 OR MORE INCHES OF SNOW IS POSSIBLE ON THURSDAY AND THURSDAY NIGHT
NORTH OF A LINE FROM MUSKEGON TO MOUNT PLEASANT. A SIGNIFICANT ICE
STORM IS POSSIBLE JUST SOUTH OF THAT...TO A LINE EXTENDING FROM
HOLLAND TO LANSING. PRIMARILY RAIN AND A FEW THUNDERSTORMS IS LIKELY
SOUTH OF A HOLLAND TO LANSING LINE. THE MIXTURE OF PRECIPITATION
WILL CHANGE OVER TO ALL SNOW THURSDAY NIGHT...WITH AREAS OF BLOWING
SNOW POSSIBLE AS NORTH WINDS GUST TO 40 MPH.

SHOULD SIGNIFICANT ICE ACCUMULATIONS TAKE PLACE FROM TONIGHT THROUGH
THURSDAY NIGHT... THE STRONG WINDS ON THE BACK SIDE OF THE LOW
PRESSURE SYSTEM COULD KNOCK DOWN TREE LIMBS AND POWER LINES AND
CAUSE WIDESPREAD POWER OUTAGES.

BITTER COLD ARCTIC AIR WILL ARRIVE FRIDAY AND REMAIN OVER THE REGION
THROUGH THE WEEKEND. SOME LAKE EFFECT SNOW SHOWERS CAN BE
EXPECTED... ALTHOUGH ACCUMULATIONS OVER THE WEEKEND SHOULD BE MINOR.
THE SNOW SHOWERS WILL PROBABLY INCREASE IN COVERAGE AND INTENSITY
EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. HOWEVER WINTER WEATHER
REPORTS SUCH AS PRECIPITATION TYPE AND SNOW AND ICE ACCUMULATION
MEASUREMENTS WOULD BE VERY HELPFUL. USE OUR SPOTTER REPORT FORM AT
WWW.WEATHER.GOV/GRR.

MEADE

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 3:49 PM ESTWinter Weather AdvisoryGRRCalhoun, Eaton, Ingham, Jackson, Kalamazoo, Van Buren13 hr

Nearby

Winter Storm Warnings in Michigan, 2006Every winter storm warning in 2006

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.