Alert archive / Pennsylvania / Flood Watches in 2013

Flood Watch 2, NWS State College, PA

April 11, 20136 counties in Pennsylvania

NWS State College, PA issued this flood watch at Apr 11, 2013, 1:37 PM EDT for 6 counties in Pennsylvania. It took effect at Apr 11, 2013, 4:00 PM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Apr 11, 2013, 1:37 PM EDT (17:37 UTC)
In effect from: Apr 11, 2013, 4:00 PM EDT
Expired: Apr 12, 2013, 4:11 AM EDT
In force: 12 hr
Issued by: NWS State College, PA
Flood severity: None

Counties Cameron County, PA, Clearfield County, PA, Elk County, PA, McKean County, PA, Potter County, PA, Warren County, PA

The radar

The State College radar (KCCX), 80 km from the middle of the area, began a volume at 17:41 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 12:00Z, 5.6 hours before the alert went out and 156 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 822 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Apr 11, 12:16 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, Apr 11, 12:16 PM EDT, 1 hour 21 minutes before

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Hazardous weather outlook, Apr 11, 4:56 AM EDT, 8 hours 41 minutes before

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The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 10, 8:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Huntingdon, Juniata, Lycoming, Mifflin and 2 more	41 min
Apr 10, 8:30 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Cumberland, Dauphin, Juniata, Lebanon, Northumberland and 5 more	60 min
Apr 10, 9:14 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	46 min
Apr 10, 10:11 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Cambria, Somerset	64 min

Nearby

Flood Watches in Pennsylvania, 2013 Every 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.