Alert archive / Pennsylvania / Flash Flood Warnings in 2021

Flash Flood Warning 13, NWS Binghamton, NY

July 2, 2021Bradford County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Jul 2, 2021, 6:30 PM EDT for Bradford 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 outline as issued.

The facts

Issued
Jul 2, 2021, 6:30 PM EDT (22:30 UTC)
Expired
Jul 2, 2021, 9:30 PM EDT
In force
3 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Bradford County, PA

The radar

The Binghamton radar (KBGM), 59 km from the middle of the area, began a volume at 22:33 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, 10.5 hours before the alert went out and 209 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, Buffalo Intl Airport, NY at 12:00Z on 2021-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 348 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, Buffalo Intl Airport, NY at 12:00Z on 2021-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
348 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

669 
WGUS51 KBGM 022230
FFWBGM
PAC015-030130-
/O.NEW.KBGM.FF.W.0013.210702T2230Z-210703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
630 PM EDT Fri Jul 2 2021

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  North Central Bradford County in northeastern Pennsylvania...

* Until 930 PM EDT.

* At 630 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen in a short amount of time. 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...
  Athens, Ulster, East Smithfield, Milan, Sheshequin and Bentley 
  Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4195 7669 4196 7659 4194 7645 4186 7645
      4181 7649 4184 7655 4184 7668

FLASH FLOOD...RADAR INDICATED

$$

JAB
2 follow-up statements
353 
WGUS71 KBGM 022329
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
729 PM EDT Fri Jul 2 2021

PAC015-030130-
/O.CON.KBGM.FF.W.0013.000000T0000Z-210703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bradford PA-
729 PM EDT Fri Jul 2 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT THIS 
EVENING FOR NORTH CENTRAL BRADFORD COUNTY...

At 729 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain have moved east of the area, however light to moderate rain 
continued in the warning area. Emergency management reported some 
flash flooding in Sheshequin Township.

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...
  Athens, Ulster, East Smithfield, Milan, Sheshequin and Bentley 
  Creek.

Water runoff will continue for the next few hours leading to 
additional flash flooding of small streams.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4195 7669 4196 7659 4194 7645 4186 7645
      4181 7649 4184 7655 4184 7668

FLASH FLOOD...RADAR INDICATED

$$

JAB
073 
WGUS71 KBGM 030127
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
927 PM EDT Fri Jul 2 2021

PAC015-030137-
/O.EXP.KBGM.FF.W.0013.000000T0000Z-210703T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bradford PA-
927 PM EDT Fri Jul 2 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 930 PM EDT THIS EVENING FOR 
NORTH CENTRAL BRADFORD COUNTY...

The heavy rain has ended. Lingering flooding is no longer expected 
to pose a serious threat. Reports of flash flooding and damaged 
roads in Sheshequin Township were received throughout the evening. 
Please continue to heed remaining road closures.

LAT...LON 4195 7669 4196 7659 4194 7645 4186 7645
      4181 7649 4184 7655 4184 7668

$$

JAB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 3:58 PM EDTSpecial Weather StatementBGMLuzerne32 min
Jul 2, 5:25 PM EDTSpecial Weather StatementBGMBradford35 min
Jul 2, 5:32 PM EDTSpecial Weather StatementBGMBradford43 min
Jul 2, 5:37 PM EDTSevere Thunderstorm WarningBGMBradford23 min
Jul 2, 5:52 PM EDTSpecial Weather StatementBGMWayne23 min
Jul 2, 6:08 PM EDTAreal Flood AdvisoryBGMBradford112 min
Jul 2, 6:08 PM EDTSpecial Weather StatementBGMBradford37 min
Jul 2, 6:21 PM EDTSevere Thunderstorm WarningBGMBradford, Susquehanna24 min
Jul 2, 6:40 PM EDTSpecial Weather StatementBGMSusquehanna35 min
Jul 2, 6:46 PM EDTSevere Thunderstorm WarningBGMSusquehanna44 min
Jul 2, 6:57 PM EDTAreal Flood AdvisoryBGMBradford, Susquehanna9 min
Jul 2, 7:06 PM EDTFlash Flood WarningBGMBradford, Susquehanna3 hr
Jul 2, 7:22 PM EDTAreal Flood AdvisoryBGMSusquehanna113 min

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.