Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 36, NWS Binghamton, NY

July 17, 2021Otsego County, New York

NWS Binghamton, NY issued this flash flood warning at Jul 17, 2021, 8:27 PM EDT for Otsego County, New York. It was in force for 77 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 17, 2021, 8:27 PM EDT (00:27 UTC)
Expired: Jul 17, 2021, 9:44 PM EDT
In force: 77 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Flood severity: None

County Otsego County, NY

The radar

The Albany radar (KENX), 75 km from the middle of the area, began a volume at 00:30 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 00:00Z, 0.5 hours before the alert went out and 91 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 30 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 630 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

349 
WGUS51 KBGM 180027
FFWBGM
NYC077-180330-
/O.NEW.KBGM.FF.W.0036.210718T0027Z-210718T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  Northern Otsego County in central New York...

* Until 1130 PM EDT.

* At 827 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...
  Cooperstown, Middlefield, Hartwick, Edmeston, Pittsfield, 
  Springfield, Richfield Springs, New Berlin, Cherry Valley, 
  Milford, Bowerstown, Exeter Center, Elk Creek, Schenevus, 
  Leonardsville, Westville, Burlington, Westford, Oaksville and 
  Toddsville.

This includes the following streams and drainages...
  Schenevus Creek, Elk Creek, Clark Brook, Fly Creek, Canajoharie 
  Creek, Potato Creek, Wharton Creek, Pleasant Brook, Cherry Valley 
  Creek, Palmer Creek, Fly Brook, Otego Creek, Shellrock Creek, 
  Hayden Creek, Shadow Brook, Decatur Creek, Oaks Creek, Stony 
  Creek, Snyder Creek, Whitney Brook, Campbell Brook, Butternut 
  Creek, Susquehanna River, Sparrowhawk Brook, Herkimer Creek, Keyes 
  Brook, Calhoun Creek, Little Elk Creek, Unadilla River and Chase 
  Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4275 7467 4254 7483 4261 7534 4286 7521
      4286 7514 4291 7510 4283 7491 4283 7489
      4290 7488 4283 7465

FLASH FLOOD...RADAR INDICATED

$$

HLC

1 follow-up statement

470 
WGUS71 KBGM 180144
FFSBGM

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

NYC077-180154-
/O.CAN.KBGM.FF.W.0036.000000T0000Z-210718T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otsego NY-
944 PM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHERN OTSEGO COUNTY...

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

A Flash Flood Watch remains in effect until 200 AM EDT for portions 
of central New York and northeast Pennsylvania.

LAT...LON 4275 7467 4254 7483 4261 7534 4286 7521
      4286 7514 4291 7510 4283 7491 4283 7489
      4290 7488 4283 7465

$$

Kistner

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:11 PM EDT	Special Weather Statement	BGM	Delaware, Sullivan	49 min
Jul 17, 8:24 PM EDT	Flash Flood Warning	BGM	Steuben	114 min
Jul 17, 8:41 PM EDT	Flash Flood Warning	BGM	Sullivan	113 min
Jul 18, 12:48 AM EDT	Areal Flood Advisory	BGM	Steuben	3 hr
Jul 18, 2:22 AM EDT	Areal Flood Advisory	BGM	Chemung, Steuben	2 hr
Jul 18, 11:34 AM EDT	Areal Flood Advisory	BGM	Delaware	3 hr
Jul 18, 12:19 PM EDT	Areal Flood Advisory	BGM	Delaware, Otsego	3 hr
Jul 18, 3:41 PM EDT	Areal Flood Advisory	BGM	Delaware	4 hr

Nearby

Flash Flood Warnings in New York, 2021 Every 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.