Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 78, NWS Binghamton, NY

October 26, 2021Tompkins County, New York

NWS Binghamton, NY issued this flash flood warning at Oct 26, 2021, 4:41 PM EDT for Tompkins County, New York. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 26, 2021, 4:41 PM EDT (20:41 UTC)
Expired
Oct 26, 2021, 7:45 PM EDT
In force
3 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

County Tompkins County, NY

What was reported inside it

TimeReportWhereRemark
Oct 26, 7:00 PM EDTFLASH FLOOD1 S Ithaca, NYNUMEROUS ROADS FLOODED.
Oct 26, 7:15 PM EDTHEAVY RAIN 2.711.2 Se Mecklenburg, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.7 hours before the alert went out and 196 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, Buffalo Intl Airport, NY at 12:00Z on 2021-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Buffalo Intl Airport, NY at 12:00Z on 2021-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
446 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

786 
WGUS51 KBGM 262041
FFWBGM
NYC109-262345-
/O.NEW.KBGM.FF.W.0078.211026T2041Z-211026T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
441 PM EDT Tue Oct 26 2021

The National Weather Service in Binghamton has issued a

* Flash Flood Warning for...
  Southern Tompkins County in central New York...

* Until 745 PM EDT.

* At 441 PM EDT, Emergency management reported heavy rain across the 
  warned area. Between 1.5 and 2.5 inches of rain have fallen. 
  Additional rainfall amounts up to 1 inch are possible in the 
  warned area. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Emergency management reported.

  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...
  Ithaca, Newfield, Enfield, Danby, Trumansburg, Besemer, 
  Brooktondale, South Danby, Taughannock Falls, Slaterville Springs, 
  Cayuga Heights, Lansing, Robert H. Treman State Park, Buttermilk 
  Falls State Park, South Hill, Allan H. Treman State Marine Park, 
  East Ithaca, Newfield Hamlet, Northwest Ithaca and West Danby.

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 4255 7656 4233 7625 4230 7625 4230 7629
      4231 7629 4231 7635 4232 7635 4232 7642
      4226 7642 4226 7647 4228 7648 4228 7669
      4255 7669

FLASH FLOOD...OBSERVED

$$

MJM
1 follow-up statement
468 
WGUS71 KBGM 262112
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
512 PM EDT Tue Oct 26 2021

NYC109-262345-
/O.CON.KBGM.FF.W.0078.000000T0000Z-211026T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tompkins NY-
512 PM EDT Tue Oct 26 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM EDT THIS 
EVENING FOR SOUTHERN TOMPKINS COUNTY...

At 512 PM EDT, Emergency management reported heavy rain, and 
significant road flooding across the warned area. Between 1.5 and 
3.0 inches of rain have already fallen. Additional rainfall amounts 
up to 1 inch are possible in the warned area.  Considerable flash 
flooding is already occurring.

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Emergency management reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Ithaca, Newfield, Enfield, Danby, Trumansburg, Besemer, 
  Brooktondale, South Danby, Taughannock Falls, Slaterville Springs, 
  Cayuga Heights, Lansing, Robert H. Treman State Park, Buttermilk 
  Falls State Park, South Hill, Allan H. Treman State Marine Park, 
  East Ithaca, Newfield Hamlet, Northwest Ithaca and West Danby.

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 4255 7656 4233 7625 4230 7625 4230 7629
      4231 7629 4231 7635 4232 7635 4232 7642
      4226 7642 4226 7647 4228 7648 4228 7669
      4255 7669

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

MJM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 26, 9:13 AM EDTAreal Flood AdvisoryBGMDelaware, Sullivan96 min
Oct 26, 10:23 AM EDTRiver Flood WarningBGMDelaware, Sullivan16 hr
Oct 26, 10:49 AM EDTFlash Flood WarningBGMDelaware, Sullivan5 hr
Oct 26, 11:13 AM EDTAreal Flood AdvisoryBGMDelaware, Otsego, Sullivan29 min
Oct 26, 11:20 AM EDTAreal Flood AdvisoryBGMDelaware, Otsego24 min
Oct 26, 11:42 AM EDTFlash Flood WarningBGMDelaware, Otsego, Sullivan4 hr
Oct 26, 11:44 AM EDTFlash Flood WarningBGMDelaware, Otsego4 hr
Oct 26, 12:37 PM EDTRiver Flood WarningBGMTompkins20 days
Oct 26, 1:38 PM EDTAreal Flood AdvisoryBGMChenango, Madison, Oneida3 hr
Oct 26, 2:26 PM EDTFlash Flood WarningBGMBroome, Cayuga, Chenango, Cortland, Onondaga, Tioga and 1 more6 hr
Oct 26, 2:49 PM EDTRiver Flood WarningBGMDelaware9 hr
Oct 26, 2:52 PM EDTRiver Flood WarningBGMCortland52 hr
Oct 26, 3:04 PM EDTRiver Flood WarningBGMSullivan36 hr
Oct 26, 3:05 PM EDTRiver Flood WarningBGMSullivan42 hr
Oct 26, 3:06 PM EDTRiver Flood WarningBGMDelaware23 hr
Oct 26, 3:11 PM EDTAreal Flood WarningBGMDelaware, Otsego3 hr
Oct 26, 3:30 PM EDTAreal Flood WarningBGMDelaware, Otsego, Sullivan3 hr
Oct 26, 3:40 PM EDTAreal Flood AdvisoryBGMOnondaga3 hr
Oct 26, 3:49 PM EDTAreal Flood AdvisoryBGMCayuga, Seneca, Steuben, Yates3 hr
Oct 26, 3:53 PM EDTAreal Flood WarningBGMDelaware, Sullivan3 hr
Oct 26, 4:08 PM EDTRiver Flood WarningBGMBroome, Tioga37 hr
Oct 26, 4:10 PM EDTRiver Flood WarningBGMChenango, Delaware10 hr
Oct 26, 4:15 PM EDTFlash Flood Warning EmergencyConsiderable damage threatBGMCayuga4 hr
Oct 26, 4:15 PM EDTRiver Flood WarningBGMChenango22 hr
Oct 26, 4:20 PM EDTFlash Flood WarningBGMMadison, Oneida, Onondaga3 hr
Oct 26, 4:26 PM EDTRiver Flood WarningBGMBroome32 hr
Oct 26, 5:34 PM EDTFlash Flood Warning Considerable damage threatBGMCayuga, Schuyler, Seneca, Yates5 hr
Oct 26, 6:17 PM EDTAreal Flood WarningBGMDelaware, Otsego3 hr
Oct 26, 6:26 PM EDTFlash Flood Warning Considerable damage threatBGMBroome, Tioga4 hr
Oct 26, 6:57 PM EDTRiver Flood WarningBGMBroome35 hr
Oct 26, 7:10 PM EDTRiver Flood WarningBGMOnondaga7 hr
Oct 26, 7:10 PM EDTRiver Flood WarningBGMOnondaga21 days
Oct 26, 7:44 PM EDTAreal Flood WarningBGMTompkins2 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.