Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 21, NWS Binghamton, NY

July 12, 2021Sullivan County, New York

NWS Binghamton, NY issued this flash flood warning at Jul 12, 2021, 6:06 AM EDT for Sullivan County, New York. 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 12, 2021, 6:06 AM EDT (10:06 UTC)
Expired: Jul 12, 2021, 8:41 AM EDT
In force: 3 hr
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Flood severity: None

County Sullivan County, NY

The radar

The Binghamton radar (KBGM), 102 km from the middle of the area, began a volume at 10:05 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, 10.1 hours before the alert went out and 136 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -108 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

460 
WGUS51 KBGM 121006
FFWBGM
NYC105-121315-
/O.NEW.KBGM.FF.W.0021.210712T1006Z-210712T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
606 AM EDT Mon Jul 12 2021

The National Weather Service in Binghamton has issued a

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

* Until 915 AM EDT.

* At 606 AM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  0.5 and 1.5 inches of rain have fallen. The expected rainfall rate 
  is 0.75 to 1.25 inches in 1 hour. 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 and automated gauges.

  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...
  Liberty, Fallsburg, Bethel, Neversink, South Fallsburg, Callicoon, 
  Cochecton, Woodridge, Jeffersonville, Swan Lake, White Sulphur 
  Springs, Parksville, Harris, Hurleyville, Mongaup Valley, Loch 
  Sheldrake, Livingston Manor, White Lake, Smallwood and Willowemoc.

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.

&&

LAT...LON 4195 7462 4188 7445 4175 7458 4172 7454
      4161 7504 4166 7505 4167 7506 4168 7505
      4171 7507 4171 7505 4175 7505 4177 7507
      4177 7508 4177 7509 4179 7510

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL...0.75-1.25 INCHES IN 1 HOUR

$$

MJM

2 follow-up statements

723 
WGUS71 KBGM 121125
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
725 AM EDT Mon Jul 12 2021

NYC105-121315-
/O.CON.KBGM.FF.W.0021.000000T0000Z-210712T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sullivan NY-
725 AM EDT Mon Jul 12 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM EDT THIS 
MORNING FOR CENTRAL SULLIVAN COUNTY...

At 725 AM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 1 
and 2 inches of rain have fallen. Flash flooding is ongoing or 
expected to begin shortly. The heaviest rainfall has now ended, but 
runoff will continue and streams will continue to rise.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Liberty, Fallsburg, Bethel, Neversink, South Fallsburg, Callicoon, 
  Cochecton, Woodridge, Jeffersonville, Swan Lake, White Sulphur 
  Springs, Parksville, Harris, Hurleyville, Mongaup Valley, Loch 
  Sheldrake, Livingston Manor, White Lake, Smallwood and Willowemoc.

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.

&&

LAT...LON 4195 7462 4188 7445 4175 7458 4172 7454
      4161 7504 4166 7505 4167 7506 4168 7505
      4171 7507 4171 7505 4175 7505 4177 7507
      4177 7508 4177 7509 4179 7510

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

MJM

763 
WGUS71 KBGM 121241
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
841 AM EDT Mon Jul 12 2021

NYC105-121251-
/O.CAN.KBGM.FF.W.0021.000000T0000Z-210712T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sullivan NY-
841 AM EDT Mon Jul 12 2021

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL SULLIVAN COUNTY...

The heavy rain has ended. Significant flooding is no longer expected 
to pose a threat, however, standing water may still be present in 
some areas. Please continue to heed any remaining road closures.

LAT...LON 4195 7462 4188 7445 4175 7458 4172 7454
      4161 7504 4166 7505 4167 7506 4168 7505
      4171 7507 4171 7505 4175 7505 4177 7507
      4177 7508 4177 7509 4179 7510

$$

JAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 8:29 PM EDT	Areal Flood Advisory	BGM	Chenango, Delaware, Otsego	51 min
Jul 11, 9:20 PM EDT	Flash Flood Warning	BGM	Chenango, Delaware, Otsego	2 hr
Jul 12, 12:33 AM EDT	Areal Flood Advisory	BGM	Cayuga, Schuyler, Seneca, Tompkins	3 hr
Jul 12, 1:11 AM EDT	Flash Flood Warning	BGM	Cayuga, Seneca, Tompkins	3 hr
Jul 12, 1:41 AM EDT	Areal Flood Advisory	BGM	Cayuga, Cortland, Onondaga	3 hr
Jul 12, 4:44 AM EDT	Areal Flood Advisory	BGM	Oneida	3 hr
Jul 12, 5:16 AM EDT	Areal Flood Warning	BGM	Oneida	3 hr
Jul 12, 5:22 AM EDT	Areal Flood Warning	BGM	Madison, Onondaga	118 min
Jul 12, 5:31 AM EDT	Areal Flood Advisory	BGM	Sullivan	3 hr
Jul 12, 9:22 AM EDT	River Flood Warning	BGM	Delaware	4 hr
Jul 12, 10:58 AM EDT	Flash Flood Watch	BGM	Broome, Chemung, Chenango, Delaware, Steuben, Sullivan and 1 more	15 hr
Jul 12, 4:08 PM EDT	Areal Flood Advisory	BGM	Steuben	30 min
Jul 12, 4:38 PM EDT	Flash Flood Warning	BGM	Steuben	77 min
Jul 12, 4:50 PM EDT	Areal Flood Advisory	BGM	Steuben	65 min
Jul 12, 5:12 PM EDT	Areal Flood Advisory	BGM	Broome, Chemung, Chenango, Tioga	108 min
Jul 12, 5:19 PM EDT	Special Weather Statement	BGM	Broome	41 min
Jul 12, 6:37 PM EDT	Flash Flood Warning	BGM	Broome, Tioga	3 hr
Jul 12, 7:05 PM EDT	Flash Flood Warning	BGM	Chemung, Tioga	3 hr
Jul 12, 7:45 PM EDT	Tornado Warning	BGM	Delaware	30 min

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.