Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 33, NWS Binghamton, NY

July 17, 2021Wayne County, Pennsylvania; Delaware County, Sullivan County, New York

NWS Binghamton, NY issued this flash flood warning at Jul 17, 2021, 4:55 PM EDT for Wayne County, Pennsylvania; Delaware County, Sullivan County, New York. It was in force for 4 hr. 6 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
Jul 17, 2021, 4:55 PM EDT (20:55 UTC)
Expired
Jul 17, 2021, 9:00 PM EDT
In force
4 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

Counties Delaware County, NY, Sullivan County, NY, Wayne County, PA

The radar

The Binghamton radar (KBGM), 97 km from the middle of the area, began a volume at 21:00 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
Jul 17, 6:00 PM EDTFLASH FLOOD2 Ssw Abrahamsville, PAROADS COVERED WITH WATER IN GALILEE. TIME ESTIMATED.
Jul 17, 6:30 PM EDTFLASH FLOODEquinunk, PAROAD FLOODED.
Jul 17, 8:15 PM EDTHEAVY RAIN 1.32 S Roscoe, NYCO-OP OBSERVER STATION RCON6 ROSCOE 2 S
Jul 17, 8:30 PM EDTHEAVY RAIN 1.461 S Shandelee, NYMESONET STATION FW2081 LIVINGSTON MANOR.
Jul 17, 8:35 PM EDTHEAVY RAIN 1.283 S Abrahamsville, PAMESONET STATION 1417D 2 S ABRAHAMSVILLE.
Jul 17, 8:40 PM EDTHEAVY RAIN 2.712 Wsw Callicoon Center, NYMESONET STATION NBRA NORTH BRANCH.

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 12:00Z, 8.9 hours before the alert went out and 122 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 2021-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
958 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

150 
WGUS51 KBGM 172055
FFWBGM
NYC025-105-PAC127-180000-
/O.NEW.KBGM.FF.W.0033.210717T2055Z-210718T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
455 PM EDT Sat Jul 17 2021

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  South Central Delaware County in central New York...
  Northwestern Sullivan County in central New York...
  Central Wayne County in northeastern Pennsylvania...

* Until 800 PM EDT.

* At 455 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, Callicoon, Cochecton, Jeffersonville, 
  Bethany, Hankins, Hortonville, Stalker, Peabrook, Fosterdale, 
  Roscoe, Equinunk, Rutledgedale, Hazel, Livingston Manor, 
  Parksville, Willowemoc, Rockland and Fremont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 4155 7520 4169 7541 4188 7527 4210 7490
      4204 7479 4203 7476 4202 7478 4200 7475
      4200 7474 4198 7470 4197 7467 4196 7464
      4195 7463 4195 7462

FLASH FLOOD...RADAR INDICATED

$$

HLC
3 follow-up statements
022 
WGUS71 KBGM 172218
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
618 PM EDT Sat Jul 17 2021

NYC025-105-PAC127-180000-
/O.CON.KBGM.FF.W.0033.000000T0000Z-210718T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware NY-Sullivan NY-Wayne PA-
618 PM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING 
FOR SOUTH CENTRAL DELAWARE, NORTHWESTERN SULLIVAN AND CENTRAL WAYNE 
COUNTIES...

At 618 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3 inches of rain have 
fallen. Additional rainfall amounts up to 1 inch are possible in 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, Callicoon, Cochecton, Jeffersonville, 
  Bethany, Hankins, Hortonville, Stalker, Peabrook, Fosterdale, 
  Roscoe, Equinunk, Rutledgedale, Hazel, Livingston Manor, 
  Parksville, Willowemoc, Rockland and Fremont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4155 7520 4169 7541 4188 7527 4210 7490
      4204 7479 4203 7476 4202 7478 4200 7475
      4200 7474 4198 7470 4197 7467 4196 7464
      4195 7463 4195 7462

FLASH FLOOD...RADAR INDICATED

$$

HLC
668 
WGUS71 KBGM 172313
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
713 PM EDT Sat Jul 17 2021

NYC025-105-PAC127-180000-
/O.CON.KBGM.FF.W.0033.000000T0000Z-210718T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware NY-Sullivan NY-Wayne PA-
713 PM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING 
FOR SOUTH CENTRAL DELAWARE, NORTHWESTERN SULLIVAN AND CENTRAL WAYNE 
COUNTIES...

At 713 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain moving back into the warned area. Between 2 and 3.5 inches of 
rain have fallen. The expected rainfall rate is up to 1 inches in 1 
hour. 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, Callicoon, Cochecton, Jeffersonville, 
  Bethany, Hankins, Hortonville, Stalker, Peabrook, Fosterdale, 
  Roscoe, Equinunk, Rutledgedale, Hazel, Livingston Manor, 
  Parksville, Willowemoc, Rockland and Fremont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4155 7520 4169 7541 4188 7527 4210 7490
      4204 7479 4203 7476 4202 7478 4200 7475
      4200 7474 4198 7470 4197 7467 4196 7464
      4195 7463 4195 7462

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1.5 INCHES IN 1 HOUR

$$

NICOSIA
028 
WGUS51 KBGM 172338
FFWBGM
NYC025-105-PAC127-180100-
/O.EXT.KBGM.FF.W.0033.000000T0000Z-210718T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
738 PM EDT Sat Jul 17 2021

The National Weather Service in Binghamton has extended the

* Flash Flood Warning for...
  South Central Delaware County in central New York...
  Northwestern Sullivan County in central New York...
  Central Wayne County in northeastern Pennsylvania...

* Until 900 PM EDT.

* At 738 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain moving toward the warned area. Between 2 and 4 inches 
  of rain have already fallen. The expected rainfall rate is 1 to 2 
  inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are 
  possible in 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, Callicoon, Cochecton, Jeffersonville, 
  Bethany, Hankins, Hortonville, Stalker, Peabrook, Fosterdale, 
  Roscoe, Equinunk, Rutledgedale, Hazel, Livingston Manor, 
  Parksville, Willowemoc, Rockland and Fremont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4155 7520 4169 7541 4188 7527 4210 7490
      4204 7479 4203 7476 4202 7478 4200 7475
      4200 7474 4198 7470 4197 7467 4196 7464
      4195 7463 4195 7462

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

NICOSIA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 3:20 PM EDTAreal Flood AdvisoryBGMWayne117 min
Jul 17, 4:35 PM EDTSpecial Weather StatementBGMPike40 min
Jul 17, 4:45 PM EDTSpecial Weather StatementBGMSusquehanna30 min
Jul 17, 4:46 PM EDTFlash Flood WarningBGMBradford90 min
Jul 17, 5:06 PM EDTSpecial Weather StatementBGMLackawanna24 min
Jul 17, 5:14 PM EDTAreal Flood AdvisoryBGMLackawanna, Luzerne, Wyoming2 hr
Jul 17, 5:16 PM EDTSpecial Weather StatementBGMSusquehanna29 min
Jul 17, 5:23 PM EDTSevere Thunderstorm WarningBGMSusquehanna67 min
Jul 17, 5:28 PM EDTSevere Thunderstorm WarningBGMLackawanna, Susquehanna, Wayne, Wyoming62 min
Jul 17, 5:35 PM EDTSevere Thunderstorm WarningBGMLuzerne, Susquehanna, Wyoming55 min
Jul 17, 6:04 PM EDTSevere Thunderstorm WarningBGMBradford, Susquehanna41 min
Jul 17, 6:23 PM EDTSevere Thunderstorm WarningBGMBradford, Luzerne, Wyoming30 min
Jul 17, 6:31 PM EDTAreal Flood AdvisoryBGMBradford, Lackawanna, Luzerne, Susquehanna, Wayne, Wyoming2 hr
Jul 17, 6:39 PM EDTSevere Thunderstorm WarningBGMSusquehanna36 min
Jul 17, 7:06 PM EDTAreal Flood AdvisoryBGMBradford, Susquehanna, Wayne2 hr
Jul 17, 7:28 PM EDTSpecial Weather StatementBGMLuzerne32 min
Jul 17, 7:33 PM EDTSpecial Weather StatementBGMWayne27 min
Jul 17, 9:39 AM EDTSpecial Weather StatementBGMSchuyler, Steuben, Yates36 min
Jul 17, 12:42 PM EDTSpecial Weather StatementBGMOtsego48 min
Jul 17, 1:29 PM EDTSpecial Weather StatementBGMOtsego31 min
Jul 17, 1:32 PM EDTAreal Flood AdvisoryBGMOtsego98 min
Jul 17, 2:04 PM EDTSevere Thunderstorm WarningBGMSteuben56 min
Jul 17, 2:14 PM EDTAreal Flood AdvisoryBGMSteuben110 min
Jul 17, 2:27 PM EDTTornado WarningBGMSteuben33 min
Jul 17, 2:57 PM EDTSevere Thunderstorm WarningBGMSteuben48 min
Jul 17, 3:05 PM EDTAreal Flood AdvisoryBGMSteuben115 min
Jul 17, 3:42 PM EDTSpecial Weather StatementBGMSchuyler33 min
Jul 17, 3:50 PM EDTAreal Flood AdvisoryBGMDelaware86 min
Jul 17, 3:59 PM EDTSpecial Weather StatementBGMDelaware46 min
Jul 17, 4:01 PM EDTAreal Flood AdvisoryBGMChemung, Schuyler, Steuben, Tompkins63 min
Jul 17, 4:16 PM EDTSpecial Weather StatementBGMTompkins29 min
Jul 17, 4:30 PM EDTSevere Thunderstorm WarningBGMTompkins45 min
Jul 17, 4:57 PM EDTSevere Thunderstorm WarningBGMBroome, Cortland, Tioga, Tompkins33 min
Jul 17, 5:12 PM EDTAreal Flood AdvisoryBGMBroome, Chemung, Cortland, Schuyler, Tioga, Tompkins55 min
Jul 17, 5:21 PM EDTSpecial Weather StatementBGMDelaware24 min
Jul 17, 5:24 PM EDTSevere Thunderstorm WarningBGMTioga, Tompkins27 min
Jul 17, 5:28 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Cortland47 min
Jul 17, 5:36 PM EDTSevere Thunderstorm WarningBGMChenango, Delaware, Otsego39 min
Jul 17, 6:06 PM EDTAreal Flood AdvisoryBGMBroome, Chemung, Chenango, Cortland, Tioga94 min
Jul 17, 6:14 PM EDTSevere Thunderstorm WarningBGMChenango31 min
Jul 17, 6:20 PM EDTTornado WarningBGMChenango, Otsego25 min
Jul 17, 6:29 PM EDTSevere Thunderstorm WarningBGMSullivan28 min
Jul 17, 6:59 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Tioga34 min
Jul 17, 7:23 PM EDTFlash Flood WarningBGMBroome, Chenango, Delaware, Otsego2 hr

Nearby

Flash Flood Warnings in New York, 2021Flash 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.