Alert archive / West Virginia / Freeze Warnings in 2017
Freeze Warning 3, NWS Baltimore/Washington
NWS Baltimore/Washington issued this freeze warning at May 7, 2017, 2:10 PM EDT for Highland County, Virginia; Grant County, Pendleton County, West Virginia. It took effect at May 8, 2017, 2:00 AM EDT. It was in force for 6 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
- May 7, 2017, 2:10 PM EDT (18:10 UTC)
- In effect from
- May 8, 2017, 2:00 AM EDT
- Expired
- May 8, 2017, 7:42 AM EDT
- In force
- 6 hr
- Issued by
- NWS Baltimore/Washington
Counties Highland County, VA, Grant County, WV, Pendleton County, WV
The radar
The Sterling radar (KLWX), 166 km from the middle of the area, began a volume at 18:09 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
Roanoke, VA (KRNK), launched 12:00Z, 6.2 hours before the alert went out and 169 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
- 3 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 697 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 11:17 PM EDT | Coastal Flood Advisory | LWX | Arlington, City of Alexandria, City of Falls Church | 8 hr |
| May 7, 4:03 AM EDT | Freeze Watch | LWX | Highland | 10 hr |
| May 7, 4:29 AM EDT | Small Craft Advisory | LWX | 41 hr | |
| May 7, 1:16 PM EDT | Gale Warning | LWX | 4 hr | |
| May 7, 4:43 PM EDT | Special Marine Warning | LWX | 32 min | |
| May 7, 6:10 PM EDT | Special Marine Warning | LWX | 2 hr | |
| May 7, 6:13 PM EDT | Special Marine Warning | LWX | 92 min |
Nearby
Freeze Warnings in West Virginia, 2017Freeze Warnings in Virginia, 2017Every freeze warning in 2017
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.