Alert archive / Ohio / Lake Effect Snow Warnings in 2009
Lake Effect Snow Warning 5, NWS Cleveland, OH
NWS Cleveland, OH issued this lake effect snow warning at Feb 18, 2009, 3:15 PM EST for Ashtabula County, Geauga County, Lake County, Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Feb 19, 2009, 6:00 AM EST. It was in force for 29 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 18, 2009, 3:15 PM EST (20:15 UTC)
- In effect from
- Feb 19, 2009, 6:00 AM EST
- Expired
- Feb 20, 2009, 10:49 AM EST
- In force
- 29 hr
- Issued by
- NWS Cleveland, OH
Counties Ashtabula County, OH, Geauga County, OH, Lake County, OH, Crawford County, PA, Erie County, PA
The radar
The Cleveland radar (KCLE), 107 km from the middle of the area, began a volume at 20:19 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, 8.3 hours before the alert went out and 249 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
- 579 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 233 m²/s²
- 0-3 km storm-relative helicity
- 268 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 Cleveland, OH wrote its last area forecast discussion before this lake effect snow warning went out at Feb 18, 12:37 PM EST, 2 hours 38 minutes earlier.
Area forecast discussion, Feb 18, 12:37 PM EST, 2 hours 38 minutes before
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</html>Hazardous weather outlook, Feb 18, 5:05 AM EST, 10 hours 10 minutes before
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Lake Effect Snow Warnings in Ohio, 2009Lake Effect Snow Warnings in Pennsylvania, 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.