Alert archive / Pennsylvania / Freeze Watches in 2012
Freeze Watch 3, NWS State College, PA
NWS State College, PA issued this freeze watch at Apr 10, 2012, 4:12 AM EDT for 4 counties in Pennsylvania. It took effect at Apr 11, 2012, 4:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 10, 2012, 4:12 AM EDT (08:12 UTC)
- In effect from
- Apr 11, 2012, 4:00 AM EDT
- Expired
- Apr 10, 2012, 11:08 AM EDT
- In force
- Issued by
- NWS State College, PA
Counties Cambria County, PA, Centre County, PA, Clearfield County, PA, Somerset County, PA
The radar
The State College radar (KCCX), 56 km from the middle of the area, began a volume at 08:12 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 8.2 hours before the alert went out and 206 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
- 2014 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 39 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 State College, PA wrote its last area forecast discussion before this freeze watch went out at Apr 10, 1:49 AM EDT, 2 hours 23 minutes earlier.
Area forecast discussion, Apr 10, 1:49 AM EDT, 2 hours 23 minutes before
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Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 4:19 AM EDT | Red Flag Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more | 15 hr |
| Apr 10, 11:08 AM EDT | Freeze Warning | CTP | Cambria, Centre, Clearfield, Somerset | 22 hr |
Nearby
Freeze Watches in Pennsylvania, 2012Every freeze watch in 2012
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.