Alert archive / Pennsylvania / Flash Flood Watches in 2019
Flash Flood Watch 1, NWS State College, PA
NWS State College, PA issued this flash flood watch at Apr 14, 2019, 5:22 PM EDT for 12 counties in Pennsylvania. It took effect at Apr 14, 2019, 6:00 PM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Apr 14, 2019, 5:22 PM EDT (21:22 UTC)
- In effect from
- Apr 14, 2019, 6:00 PM EDT
- Expired
- Apr 15, 2019, 3:44 AM EDT
- In force
- 10 hr
- Issued by
- NWS State College, PA
- Flood severity
- None
Counties Adams County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Lancaster County, PA, Lebanon County, PA, McKean County, PA, Perry County, PA, Schuylkill County, PA, Warren County, PA, York County, PA
The radar
The State College radar (KCCX), 66 km from the middle of the area, began a volume at 21:23 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 12:00Z, 9.4 hours before the alert went out and 180 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
- 514 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash 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 flash flood watch went out at Apr 14, 3:29 PM EDT, 1 hour 53 minutes earlier.
Area forecast discussion, Apr 14, 3:29 PM EDT, 1 hour 53 minutes before
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</html>Hazardous weather outlook, Apr 14, 9:10 AM EDT, 8 hours 12 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 6:42 PM EDT | Special Weather Statement | CTP | Adams, York | 48 min |
| Apr 14, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 54 min |
| Apr 14, 7:13 PM EDT | Special Weather Statement | CTP | Warren | 32 min |
| Apr 14, 7:45 PM EDT | Tornado Warning | CTP | York | 45 min |
| Apr 14, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 53 min |
| Apr 14, 7:59 PM EDT | Areal Flood Advisory | CTP | Adams, York | 3 hr |
Nearby
Flash Flood Watches in Pennsylvania, 2019Every flash flood 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.