Alert archive / Michigan / Lake Effect Snow Warnings in 2009
Lake Effect Snow Warning 4, NWS Gaylord, MI
NWS Gaylord, MI issued this lake effect snow warning at Dec 4, 2009, 4:35 AM EST for Cheboygan County, Emmet County, Michigan. It was in force for 36 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 4, 2009, 4:35 AM EST (09:35 UTC)
- Expired
- Dec 5, 2009, 4:46 PM EST
- In force
- 36 hr
- Issued by
- NWS Gaylord, MI
Counties Cheboygan County, MI, Emmet County, MI
The radar
The NCL Michigan radar (KAPX), 69 km from the middle of the area, began a volume at 09:35 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 00:00Z, 9.6 hours before the alert went out and 329 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
- 824 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- -115 m²/s²
- 0-3 km storm-relative helicity
- 33 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 Gaylord, MI wrote its last area forecast discussion before this lake effect snow warning went out at Dec 4, 12:01 AM EST, 4 hours 34 minutes earlier.
Area forecast discussion, Dec 4, 12:01 AM EST, 4 hours 34 minutes before
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</html>Hazardous weather outlook, Dec 3, 9:41 PM EST, 6 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GAYLORD MI 941 PM EST THU DEC 3 2009 LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-MIZ008-015>036-041-042- 041200- STRAITS OF MACKINAC-ST IGNACE TO FALSE DETOUR CHANNEL- MACKINAC BRDG TO PRESQUE ISLE LT-PRESQUE ISLE LT TO STURGEON PT- STURGEON PT TO ALABASTER-GRAND TRAVERSE BAY- SEUL CHOIX PT TO MACKINAC BRDG-NORWOOD TO MACKINAC BRDG- SLEEPING BEAR PT TO GRAND TRAVERSE LT-PT BETSIE TO SLEEPING BEAR PT- MANISTEE TO PT BETSIE-WHITEFISH BAY-ST. MARYS RIVER-CHIPPEWA- MACKINAC-EMMET-CHEBOYGAN-PRESQUE ISLE-CHARLEVOIX-LEELANAU-ANTRIM- OTSEGO-MONTMORENCY-ALPENA-BENZIE-GRAND TRAVERSE-KALKASKA-CRAWFORD- OSCODA-ALCONA-MANISTEE-WEXFORD-MISSAUKEE-ROSCOMMON-OGEMAW-IOSCO- GLADWIN-ARENAC- 941 PM EST THU DEC 3 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN LOWER MICHIGAN... EASTERN UPPER MICHIGAN...AND ADJACENT NEARSHORE WATERS OF LAKE MICHIGAN...LAKE HURON AND LAKE SUPERIOR. .DAY ONE...TONIGHT LOCALLY HEAVY LAKE ENHANCED SNOW WILL CONTINUE OVERNIGHT ACROSS PORTIONS OF NORTHWEST LOWER MICHIGAN...ESPECIALLY WEST OF I-75 AND NORTH OF M-72. SEVERAL INCHES OF ACCUMULATION ARE EXPECTED. SEE ONGOING ADVISORIES FOR ADDITIONAL DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY LAKE ENHANCED SNOWFALL WILL CONTINUE ALONG THE LAKE MICHIGAN SHORELINE COUNTIES OF NORTHWEST LOWER MICHIGAN INTO FRIDAY MORNING. LAKE EFFECT SNOWS WILL THEN MOVE NORTH AND FOCUS INTO AREAS NEAR THE STRAITS AND SOUTHEAST PORTIONS OF EASTERN UPPER MICHIGAN FRIDAY NIGHT...AND CONTINUE THROUGH SATURDAY NIGHT. SIGNIFICANT ACCUMULATIONS ARE LIKELY THROUGH THIS PERIOD. SEE ONGOING WATCHES AND ADVISORIES FOR ADDITIONAL INFORMATION. .SPOTTER INFORMATION STATEMENT... SPOTTERS PLEASE RELAY ANY SNOWFALL REPORTS TO THE NATIONAL WEATHER SERVICE. KAS
In the hours before
Local storm report, Dec 4, 4:16 AM EST, 19 minutes before
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</html>The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 4, 4:35 AM EST | Lake Effect Snow Advisory | APX | Antrim, Kalkaska, Leelanau, Otsego | 31 hr |
| Dec 4, 4:54 AM EST | Small Craft Advisory | APX | 42 hr |
Nearby
Lake Effect Snow Warnings in Michigan, 2009Every lake effect snow warning in 2009
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.