Alert archive / West Virginia / Freeze Watches in 2021
Freeze Watch 5, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this freeze watch at May 12, 2021, 3:45 AM EDT for Tucker County, West Virginia. It took effect at May 13, 2021, 2:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- May 12, 2021, 3:45 AM EDT (07:45 UTC)
- In effect from
- May 13, 2021, 2:00 AM EDT
- Expired
- May 12, 2021, 11:40 AM EDT
- In force
- Issued by
- NWS Pittsburgh, PA
County Tucker County, WV
The radar
The Pittsburgh radar (KPBZ), 167 km from the middle of the area, began a volume at 07:51 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 00:00Z, 7.8 hours before the alert went out and 213 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
- 2044 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before this freeze watch went out at May 12, 3:04 AM EDT, 41 minutes earlier.
Area forecast discussion, May 12, 3:04 AM EDT, 41 minutes before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 11:40 AM EDT | Frost Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 8 more | 20 hr |
| May 12, 11:40 AM EDT | Freeze Warning | PBZ | Tucker | 20 hr |
Nearby
Freeze Watches in West Virginia, 2021Every freeze watch in 2021
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.