Alert archive / Pennsylvania / Flood Watches in 2013
Flood Watch 7, NWS State College, PA
NWS State College, PA issued this flood watch at Dec 20, 2013, 4:32 AM EST for 6 counties in Pennsylvania. It took effect at Dec 21, 2013, 12:00 PM EST. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2013, 4:32 AM EST (09:32 UTC)
- In effect from
- Dec 21, 2013, 12:00 PM EST
- Expired
- Dec 22, 2013, 12:46 PM EST
- In force
- 25 hr
- Issued by
- NWS State College, PA
- Flood severity
- None
Counties Cameron County, PA, Elk County, PA, McKean County, PA, Potter County, PA, Tioga County, PA, Warren County, PA
The radar
The State College radar (KCCX), 87 km from the middle of the area, began a volume at 09:30 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, 9.5 hours before the alert went out and 144 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
- 789 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flood 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 flood watch went out at Dec 20, 3:35 AM EST, 57 minutes earlier.
Area forecast discussion, Dec 20, 3:35 AM EST, 57 minutes before
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Flood Watches in Pennsylvania, 2013Every flood watch in 2013
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.