Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 68, NWS Binghamton, NY

September 15, 2021Otsego County, New York

NWS Binghamton, NY issued this flash flood warning at Sep 15, 2021, 3:44 PM EDT for Otsego 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
Sep 15, 2021, 3:44 PM EDT (19:44 UTC)
Expired
Sep 15, 2021, 6:04 PM EDT
In force
2 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Otsego County, NY

The radar

The Albany radar (KENX), 63 km from the middle of the area, began a volume at 19:48 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, 7.7 hours before the alert went out and 79 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 2021-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 856 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 2021-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
856 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
766 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.3

Open this sounding in Storm Lab

The text

As transmitted.

856 
WGUS51 KBGM 151944
FFWBGM
NYC077-152245-
/O.NEW.KBGM.FF.W.0068.210915T1944Z-210915T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
344 PM EDT Wed Sep 15 2021

The National Weather Service in Binghamton has issued a

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

* Until 645 PM EDT.

* At 344 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain over Chenango county. Between 1.5 and 3 inches of rain 
  have already fallen in Otsego county from previous storms. Flash 
  flooding is expected to begin shortly as this additional rain 
  moves through the area.

  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, Hartwick, Cherry Valley, Glimmerglass State Park and 
  Oaksville.

Another 1 to 2 inches of rain is expected in the warned area as new 
thunderstorms move through.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4283 7465 4279 7467 4265 7505 4271 7509
      4285 7474 4284 7467

FLASH FLOOD...RADAR INDICATED

$$

JAB
1 follow-up statement
234 
WGUS71 KBGM 152204
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
604 PM EDT Wed Sep 15 2021

NYC077-152214-
/O.CAN.KBGM.FF.W.0068.000000T0000Z-210915T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otsego NY-
604 PM EDT Wed Sep 15 2021

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

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

LAT...LON 4283 7465 4279 7467 4265 7505 4271 7509
      4285 7474 4284 7467

$$

TAC

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 5:56 AM EDTSpecial Weather StatementBGMOneida34 min
Sep 15, 6:27 AM EDTSpecial Weather StatementBGMOneida33 min
Sep 15, 12:10 PM EDTSpecial Weather StatementBGMOtsego35 min
Sep 15, 12:15 PM EDTSevere Thunderstorm WarningBGMOtsego45 min
Sep 15, 12:18 PM EDTSpecial Weather StatementBGMBroome, Chenango27 min
Sep 15, 12:43 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware47 min
Sep 15, 12:46 PM EDTSevere Thunderstorm WarningBGMTioga44 min
Sep 15, 12:50 PM EDTAreal Flood AdvisoryBGMOtsego3 hr
Sep 15, 1:07 PM EDTSpecial Weather StatementBGMSteuben38 min
Sep 15, 1:09 PM EDTSevere Thunderstorm WarningBGMChenango, Delaware, Otsego51 min
Sep 15, 1:22 PM EDTSevere Thunderstorm WarningBGMBroome23 min
Sep 15, 1:39 PM EDTSevere Thunderstorm WarningBGMSchuyler, Steuben51 min
Sep 15, 1:56 PM EDTAreal Flood AdvisoryBGMBroome, Chenango, Delaware, Otsego3 hr
Sep 15, 2:00 PM EDTSpecial Weather StatementBGMOtsego15 min
Sep 15, 2:13 PM EDTSpecial Weather StatementBGMDelaware47 min
Sep 15, 2:14 PM EDTSevere Thunderstorm WarningBGMSchuyler, Tompkins26 min
Sep 15, 2:44 PM EDTSpecial Weather StatementBGMCortland, Tompkins46 min
Sep 15, 3:00 PM EDTSpecial Weather StatementBGMDelaware45 min
Sep 15, 4:08 PM EDTSpecial Weather StatementBGMOtsego52 min
Sep 15, 5:03 PM EDTSpecial Weather StatementBGMSullivan27 min
Sep 15, 5:19 PM EDTAreal Flood AdvisoryBGMSullivan119 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.