Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 16, NWS Binghamton, NY

July 3, 2021Delaware County, New York

NWS Binghamton, NY issued this flash flood warning at Jul 3, 2021, 6:12 PM EDT for Delaware County, New York. It was in force for 2 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 3, 2021, 6:12 PM EDT (22:12 UTC)
Expired
Jul 3, 2021, 8:15 PM EDT
In force
2 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Delaware County, NY

The radar

The Binghamton radar (KBGM), 75 km from the middle of the area, began a volume at 22:14 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, 10.2 hours before the alert went out and 123 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 2021-07-03Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939587897Sfc1 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
725 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

243 
WGUS51 KBGM 032212
FFWBGM
NYC025-040015-
/O.NEW.KBGM.FF.W.0016.210703T2212Z-210704T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
612 PM EDT Sat Jul 3 2021

The National Weather Service in Binghamton has issued a

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

* Until 815 PM EDT.

* At 612 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. The expected rainfall rate is 
  1.5 to 2 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...
  Corbett, Harvard, Downsville, Shinhopple and Bear Spring Mountain 
  Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4211 7510 4213 7508 4215 7502 4208 7497
      4202 7505 4199 7515 4209 7515 4210 7513
      4211 7513

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1.5-2 INCHES IN 1 HOUR

$$

AJG
1 follow-up statement
696 
WGUS71 KBGM 040014
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
814 PM EDT Sat Jul 3 2021

NYC025-040024-
/O.EXP.KBGM.FF.W.0016.000000T0000Z-210704T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Delaware NY-
814 PM EDT Sat Jul 3 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 815 PM EDT THIS EVENING FOR 
SOUTH CENTRAL DELAWARE COUNTY...

The heavy rain has ended. No reports of any flooding have been 
received and the greatest threat for small stream rises have passed.

LAT...LON 4211 7510 4213 7508 4215 7502 4208 7497
      4202 7505 4199 7515 4209 7515 4210 7513
      4211 7513

$$

AJG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 8:11 PM EDTFlash Flood WarningBGMBroome3 hr
Jul 2, 8:41 PM EDTSpecial Weather StatementBGMSullivan49 min
Jul 2, 11:16 PM EDTAreal Flood WarningBGMBroome5 hr

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.