Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 39, NWS Binghamton, NY

July 20, 2021Oneida County, New York

NWS Binghamton, NY issued this flash flood warning at Jul 20, 2021, 6:55 PM EDT for Oneida County, New York. It was in force for 49 min. 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 20, 2021, 6:55 PM EDT (22:55 UTC)
Expired
Jul 20, 2021, 7:44 PM EDT
In force
49 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Oneida County, NY

The radar

The Ft Drum radar (KTYX), 42 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 151 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 2021-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 85 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 2021-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939Sfc1 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
85 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
793 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

853 
WGUS51 KBGM 202255
FFWBGM
NYC065-210200-
/O.NEW.KBGM.FF.W.0039.210720T2255Z-210721T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
655 PM EDT Tue Jul 20 2021

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  North Central Oneida County in central New York...

* Until 1000 PM EDT.

* At 655 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has already fallen over the same area that saw significant 
  rainfall yesterday. 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...
  Rome, Boonville, Delta Lake, North Western, Frenchville, 
  Westernville, Pixley Falls State Park, Delta Lake State Park and 
  Stokes Corner.

This includes the following streams and drainages...
  Mill Creek, Moose Creek, Ninemile Creek, Sugar River, East Kent 
  Creek, Mohawk River, Wood Creek and Black River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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 4353 7529 4325 7533 4325 7553 4345 7547
      4349 7539 4349 7538 4350 7536 4353 7531

FLASH FLOOD...RADAR INDICATED

$$

Kistner
1 follow-up statement
498 
WGUS71 KBGM 202344
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
744 PM EDT Tue Jul 20 2021

NYC065-202354-
/O.CAN.KBGM.FF.W.0039.000000T0000Z-210721T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Oneida NY-
744 PM EDT Tue Jul 20 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTH CENTRAL ONEIDA 
COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose an 
immediate threat.

A Flash Flood Watch remains in effect until 200 AM EDT Wednesday for 
a portion of central New York.

LAT...LON 4353 7529 4325 7533 4325 7553 4345 7547
      4349 7539 4349 7538 4350 7536 4353 7531

$$

Kistner

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 5:31 PM EDTFlash Flood WatchBGMOneida3 hr
Jul 20, 5:34 PM EDTSpecial Weather StatementBGMOnondaga41 min
Jul 20, 5:57 PM EDTSevere Thunderstorm WarningBGMOneida63 min
Jul 20, 6:05 PM EDTSpecial Weather StatementBGMSchuyler25 min
Jul 20, 6:10 PM EDTSpecial Weather StatementBGMCortland35 min
Jul 20, 6:44 PM EDTSevere Thunderstorm WarningBGMOneida50 min
Jul 20, 6:54 PM EDTSpecial Weather StatementBGMCortland51 min
Jul 20, 7:33 PM EDTSpecial Weather StatementBGMTioga, Tompkins27 min
Jul 20, 7:40 PM EDTSevere Thunderstorm WarningBGMBroome, Tioga, Tompkins50 min
Jul 20, 7:41 PM EDTAreal Flood AdvisoryBGMSteuben68 min
Jul 20, 7:47 PM EDTSpecial Weather StatementBGMChemung43 min
Jul 20, 7:58 PM EDTSevere Thunderstorm WarningBGMChemung, Schuyler, Steuben47 min

Nearby

Flash Flood Warnings in New York, 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.