Alert archive / Michigan / Lake Effect Snow Warnings in 2007
Lake Effect Snow Warning 4, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this lake effect snow warning at Feb 1, 2007, 3:36 AM EST for Allegan County, Kent County, Ottawa County, Michigan. It was in force for 12 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 1, 2007, 3:36 AM EST (08:36 UTC)
- Expired
- Feb 1, 2007, 3:59 PM EST
- In force
- 12 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Kent County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 28 km from the middle of the area, began a volume at 08:42 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, 8.6 hours before the alert went out and 254 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
- 1061 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this lake effect snow 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 lake effect snow warning went out at Jan 31, 9:15 PM EST, 6 hours 21 minutes earlier.
Area forecast discussion, Jan 31, 9:15 PM EST, 6 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 915 PM EST WED JAN 31 2007 .UPDATE... AT 02Z THE KGRR 88D AND SFC OBS INDICATE NOTHING MORE THAN A FEW FLURRIES IN OUR AREA. HOWEVER A FEW SNOW SHOWERS SHOULD BEGIN TO DEVELOP DURING THE NEXT 1-3 HRS. NUMEROUS OBS SITES OFF TO OUR WEST IN WI INDICATE 1 TO 3 MILE VISBYS IN LIGHT SNOW. THIS AREA OF SNOW WILL BE ENHANCED BY THE SW FLOW OFF LAKE MI AS IT MOVES INTO OUR WESTERN/NW CWA AFTER MIDNIGHT. OUR GOING FCST AND THE LAKE EFFECT SNOW ADVISORY HEADLINE APPEARS TO BE IN GOOD SHAPE AND NO HEADLINE CHANGES ARE PLANNED. I SUSPECT THAT SNOW ACCUMS OVERNIGHT WILL MOST LIKELY END UP IN THE LOWER END OF OUR FCST RANGES (GENERALLY AROUND 1 TO 2 INCHES BY DAYBREAK OVER OUR WESTERN/NW CWA). HOWEVER WE CANNOT RULE OUT A FEW LOCALLY HIGHER AMOUNTS GIVEN SW FLOW LAKE ENHANCEMENT. BOTTOM LINE... OUR GOING FCST APPEARS REASONABLE SO NO EVENING UPDATE WILL BE NECESSARY. WE WILL UPDATE THE LAKE EFFECT SNOW ADVISORY STATEMENT AT 03Z. && .GRR WATCHES/WARNINGS/ADVISORIES...LAKE EFFECT SNOW ADVISORY FROM 1 AM THURSDAY THROUGH 1 PM THURSDAY FOR MASON...LAKE...OCEANA... NEWYAGO...MUSKEGON...OTTAWA AND KENT. SMALL CRAFT ADVISORY FOR THE NEARSHORE WATERS THROUGH THURSDAY AFTERNOON. && LAURENS
Hazardous weather outlook, Jan 31, 5:45 AM EST, 21 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 545 AM EST WED JAN 31 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-011000- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 545 AM EST WED JAN 31 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT AFTER SEVERAL DAYS OF LOCALIZED HEAVY LAKE EFFECT SNOWS... MAINLY JUST SOME LIGHT SNOW OR FLURRIES WILL OCCUR TODAY. ANY ACCUMULATION SHOULD BE UNDER ONE INCH. HOWEVER LAKE EFFECT SNOWS WILL INCREASE AGAIN TONIGHT WITH THE APPROACH OF AN UPPER LEVEL DISTURBANCE. THE WIND DIRECTION WILL BE SOUTHWESTERLY...WHICH FAVORS ACCUMULATIONS ACROSS THE AREA NORTH OF HOLLAND AND ALONG AND WEST OF HIGHWAY 131. THE CURRENT FORECAST IS FOR 1 TO 3 INCHES IN THIS AREA TONIGHT AND UNDER ONE INCH ELSEWHERE. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY MORE LAKE EFFECT SNOW IS EXPECTED THURSDAY WITH THE PREDOMINATE WIND DIRECTION REMAINING SOUTHWEST. AREAS ALONG AND WEST OF HIGHWAY 131 AND NORTH OF HOLLAND SHOULD SEE ANOTHER 1 TO 3 INCHES. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. A BLAST OF EVEN COLDER AIR IS EXPECTED TO ARRIVE FRIDAY AFTERNOON OR NIGHT...ENHANCING LAKE EFFECT SNOW YET AGAIN. BITTERLY COLD ARCTIC AIR WILL AFFECT THE REGION SATURDAY THROUGH TUESDAY... WITH WIND CHILLS AS LOW AS 25 BELOW POSSIBLE. SCATTERED LAKE EFFECT SNOW SHOWERS WILL PERSIST DURING THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ844>849-011000- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE- 545 AM EST WED JAN 31 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT WAVES OF 4 TO 7 FEET ON LAKE MICHIGAN WILL POSE A THREAT TO SMALL CRAFT TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY WAVES OF 4 FEET OR MORE WILL CONTINUE ON LAKE MICHIGAN THURSDAY THROUGH TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. MEADE
In the hours before
Local storm report, Feb 1, 3:14 AM EST, 22 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 |
|---|---|---|---|---|
| Feb 1, 3:59 PM EST | Lake Effect Snow Advisory | GRR | Allegan, Kent, Lake, Mason, Muskegon, Newaygo and 3 more | 6 hr |
Nearby
Lake Effect Snow Warnings in Michigan, 2007Every lake effect snow 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.