Alert archive / Ohio / Winter Storm Watches in 2019

Winter Storm Watch 4, NWS Cleveland, OH

December 17, 2019Ashtabula County, Lake County, Ohio; Erie County, Pennsylvania

NWS Cleveland, OH issued this winter storm watch at Dec 17, 2019, 3:47 AM EST for Ashtabula County, Lake County, Ohio; Erie County, Pennsylvania. It took effect at Dec 18, 2019, 1:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 17, 2019, 3:47 AM EST (08:47 UTC)
In effect from: Dec 18, 2019, 1:00 AM EST
Expired: Dec 17, 2019, 3:48 PM EST
In force
Issued by: NWS Cleveland, OH

Counties Ashtabula County, OH, Lake County, OH, Erie County, PA

The radar

The Cleveland radar (KCLE), 111 km from the middle of the area, began a volume at 08:48 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 8.8 hours before the alert went out and 200 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1171 m above ground
0-6 km bulk shear: 102 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 168 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 watch 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 winter storm watch went out at Dec 17, 12:47 AM EST, 3 hours earlier.

Area forecast discussion, Dec 17, 12:47 AM EST, 3 hours before

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Hazardous weather outlook, Dec 16, 4:35 PM EST, 11 hours 12 minutes before

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The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 17, 3:18 AM EST	Small Craft Advisory	CLE		42 hr
Dec 17, 3:48 PM EST	Winter Weather Advisory	CLE	Ashtabula, Geauga, Lake	35 hr
Dec 17, 3:48 PM EST	Lake Effect Snow Warning	CLE	Crawford, Erie	35 hr

Nearby

Winter Storm Watches in Ohio, 2019 Winter Storm Watches in Pennsylvania, 2019 Every winter storm watch in 2019

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.