Alert archive / Pennsylvania / Flash Flood Warnings in 2021

Flash Flood Warning 61, NWS Binghamton, NY

August 27, 2021Wayne County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Aug 27, 2021, 4:09 PM EDT for Wayne County, Pennsylvania. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 27, 2021, 4:09 PM EDT (20:09 UTC)
Expired
Aug 27, 2021, 8:15 PM EDT
In force
4 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Wayne County, PA

The radar

The Binghamton radar (KBGM), 97 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 172 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
325 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
983 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

As transmitted.

371 
WGUS51 KBGM 272009
FFWBGM
PAC127-280015-
/O.NEW.KBGM.FF.W.0061.210827T2009Z-210828T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
409 PM EDT Fri Aug 27 2021

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  Central Wayne County in northeastern Pennsylvania...

* Until 815 PM EDT.

* At 409 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Honesdale, Damascus, Waymart, Hawley, Prompton, Bethany, 
  Rutledgedale, Lake Ariel, Tresslarville, Arlington, Pleasant 
  Mount, South Canaan, Beech Grove, Seelyville, Prompton State Park, 
  Laurella, Headley, Aldenville, Beach Lake and Rileyville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life.

&&

LAT...LON 4179 7543 4171 7506 4171 7507 4170 7506
      4169 7505 4146 7519 4144 7520 4143 7520
      4143 7521 4142 7522 4143 7523 4142 7523
      4142 7525 4141 7525 4140 7545

FLASH FLOOD...RADAR INDICATED

$$

DJP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 3:09 PM EDTAreal Flood AdvisoryBGMLackawanna, Wayne3 hr
Aug 27, 3:41 PM EDTSpecial Weather StatementBGMWayne34 min
Aug 27, 5:38 PM EDTSevere Thunderstorm WarningBGMBradford52 min
Aug 27, 5:45 PM EDTFlash Flood WarningBGMBradford3 hr
Aug 27, 6:27 PM EDTAreal Flood AdvisoryBGMSusquehanna, Wayne2 hr
Aug 27, 6:53 PM EDTAreal Flood AdvisoryBGMSusquehanna2 hr
Aug 27, 7:57 PM EDTAreal Flood AdvisoryBGMBradford, Susquehanna, Wyoming2 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2021Every flash flood warning in 2021

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.