Alert archive / Pennsylvania / Flash Flood Warnings in 2021

Flash Flood Warning 57, NWS Binghamton, NY

August 22, 2021Wayne County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Aug 22, 2021, 9:15 PM EDT for Wayne County, Pennsylvania. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 22, 2021, 9:15 PM EDT (01:15 UTC)
Expired
Aug 23, 2021, 12:15 AM EDT
In force
3 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Wayne County, PA

The radar

The Binghamton radar (KBGM), 108 km from the middle of the area, began a volume at 01:16 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.

What was reported inside it

TimeReportWhereRemark
Aug 22, 9:15 PM EDTFLASH FLOOD2 S Tresslarville, PAFROM PA511: FLOODING ON ADVENT ROAD BOTH DIRECTIONS BETWEEN LAKE ARIEL HIGHWAY AND GOLF PARK DRIVE. ALL LANES CLOSED.
Aug 22, 9:53 PM EDTFLASH FLOOD2 Ne Quicktown, PAFROM PA511: FLOODING ON MOON ROAD/POND ROAD BOTH DIRECTIONS BETWEEN HOLLISTERVILLE ROAD AND TWIN ROCKS ROAD. ALL LANES CLOSED.
Aug 22, 11:30 PM EDTFLOOD2 Wsw Angels, PAFLOODED BASEMENT ON SENECA DRIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.3 hours before the alert went out and 194 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 00:00Z on 2021-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2021-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
376 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

843 
WGUS51 KBGM 230115
FFWBGM
PAC127-230415-
/O.NEW.KBGM.FF.W.0057.210823T0115Z-210823T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
915 PM EDT Sun Aug 22 2021

The National Weather Service in Binghamton has issued a

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

* Until 1215 AM EDT.

* At 915 PM EDT, Doppler radar indicated tropical thunderstorms 
  producing heavy rain across the warned area. Between 1.5 and 3 
  inches of rain have fallen. 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...
  Sterling, Arlington, Lake Ariel, Tresslarville, Greentown, Angels, 
  South Canaan, Lakeville, Newfoundland and La Anna.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4156 7545 4146 7519 4142 7524 4142 7525
      4137 7530 4137 7531 4137 7533 4138 7534
      4137 7535 4134 7535 4133 7531 4127 7534
      4126 7535 4126 7534 4125 7535 4124 7536
      4123 7549 4126 7544

FLASH FLOOD...RADAR INDICATED

$$

JAB
1 follow-up statement
561 
WGUS71 KBGM 230202
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
1002 PM EDT Sun Aug 22 2021

PAC127-230415-
/O.CON.KBGM.FF.W.0057.000000T0000Z-210823T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wayne PA-
1002 PM EDT Sun Aug 22 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT MONDAY 
FOR SOUTHWESTERN WAYNE COUNTY...

At 1002 PM EDT, local law enforcement significant flooding across 
the warned area. Between 1.5 and 3 inches of rain have fallen. Flash 
flooding is ongoing or expected to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Law enforcement reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Sterling, Arlington, Lake Ariel, Tresslarville, Greentown, Angels, 
  South Canaan, Lakeville, Newfoundland and La Anna.

Numerous flooded basements and roads with stranded cars have been 
reported. Significant flash flooding was also occurring in nearby 
Lackawanna county.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4156 7545 4146 7519 4142 7524 4142 7525
      4137 7530 4137 7531 4137 7533 4138 7534
      4137 7535 4134 7535 4133 7531 4127 7534
      4126 7535 4126 7534 4125 7535 4124 7536
      4123 7549 4126 7544

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JAB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 8:27 PM EDTAreal Flood AdvisoryBGMSusquehanna8 hr
Aug 22, 8:33 PM EDTAreal Flood AdvisoryBGMPike, Wayne6 hr
Aug 22, 8:48 PM EDTFlash Flood WarningBGMLackawanna3 hr
Aug 22, 9:40 PM EDTAreal Flood AdvisoryBGMLuzerne, Susquehanna, Wyoming3 hr
Aug 22, 10:17 PM EDTFlash Flood WarningBGMLuzerne4 hr
Aug 22, 10:46 PM EDTAreal Flood AdvisoryBGMBradford2 hr
Aug 22, 11:18 PM EDTAreal Flood AdvisoryBGMLuzerne, Wyoming5 hr
Aug 23, 12:13 AM EDTAreal Flood WarningBGMLackawanna8 hr
Aug 23, 12:13 AM EDTAreal Flood WarningBGMWayne8 hr
Aug 23, 2:01 AM EDTAreal Flood WarningBGMLuzerne6 hr
Aug 23, 4:34 AM EDTAreal Flood AdvisoryBGMSusquehanna, Wyoming67 min
Aug 23, 6:27 AM EDTRiver Flood WarningBGMLackawanna4 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.