Alert archive / Pennsylvania / Flood Watches in 2013

Flood Watch 4, NWS State College, PA

June 10, 201322 counties in Pennsylvania

NWS State College, PA issued this flood watch at Jun 10, 2013, 11:47 AM EDT for 22 counties in Pennsylvania. It took effect at Jun 10, 2013, 12:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 10, 2013, 11:47 AM EDT (15:47 UTC)
In effect from: Jun 10, 2013, 12:00 PM EDT
Expired: Jun 10, 2013, 8:00 PM EDT
In force: 8 hr
Issued by: NWS State College, PA
Flood severity: None

All 22 counties

Adams County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Union County, PA, York County, PA

The radar

The State College radar (KCCX), 86 km from the middle of the area, began a volume at 15:47 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 3.8 hours before the alert went out and 150 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: 111 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 64 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 Jun 10, 10:34 AM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jun 10, 10:34 AM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Jun 10, 6:27 AM EDT, 5 hours 20 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
Jun 10, 3:33 PM EDT	Special Weather Statement	CTP	Lancaster	57 min
Jun 10, 3:44 PM EDT	Special Weather Statement	CTP	Cambria	46 min
Jun 10, 4:29 PM EDT	Special Weather Statement	CTP	Blair, Cambria	61 min
Jun 10, 5:09 PM EDT	Special Weather Statement	CTP	Clearfield	66 min
Jun 10, 5:26 PM EDT	Special Weather Statement	CTP	Bedford, Blair, Centre, Fulton, Huntingdon	64 min
Jun 10, 6:40 PM EDT	Special Weather Statement	CTP	Mifflin	35 min
Jun 10, 7:05 PM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	3 hr

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.