Alert archive / Pennsylvania / Flash Flood Warnings in 2009

Flash Flood Warning 17, NWS Binghamton, NY

July 31, 2009Wyoming County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Jul 31, 2009, 3:16 PM EDT for Wyoming County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 31, 2009, 3:16 PM EDT (19:16 UTC)
Expired: Jul 31, 2009, 6:15 PM EDT
In force: 3 hr
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Flood severity: None

County Wyoming County, PA

The radar

The Binghamton radar (KBGM), 76 km from the middle of the area, began a volume at 19:19 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

Albany, NY (KALY), launched 12:00Z, 7.3 hours before the alert went out and 222 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: 137 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 697 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Binghamton, NY wrote its last area forecast discussion before this flash flood warning went out at Jul 31, 2:54 PM EDT, 22 minutes earlier.

Area forecast discussion, Jul 31, 2:54 PM EDT, 22 minutes before

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Hazardous weather outlook, Jul 31, 2:58 PM EDT, 18 minutes before

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In the hours before

Local storm report, Jul 31, 2:19 PM EDT, 57 minutes before

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The office that day

Everything else NWS Binghamton, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 31, 9:45 AM EDT	Areal Flood Advisory	BGM	Delaware, Sullivan	3 hr
Jul 31, 10:35 AM EDT	Flash Flood Warning	BGM	Delaware, Sullivan	6 hr
Jul 31, 1:03 PM EDT	River Flood Warning	BGM	Delaware, Sullivan	8 hr
Jul 31, 8:31 AM EDT	Areal Flood Advisory	BGM	Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming	3 hr
Jul 31, 9:20 AM EDT	Flash Flood Warning	BGM	Lackawanna, Luzerne, Wyoming	6 hr
Jul 31, 9:54 AM EDT	Flash Flood Warning	BGM	Lackawanna, Susquehanna, Wayne	6 hr
Jul 31, 12:04 PM EDT	Flash Flood Warning	BGM	Lackawanna, Luzerne	4 hr
Jul 31, 3:22 PM EDT	River Flood Warning	BGM	Wyoming	19 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2009 Every flash flood warning in 2009

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.