Alert archive / New York / Flash Flood Warnings in 2021

Flash Flood Warning 49, NWS Binghamton, NY

August 18, 2021Steuben County, New York

NWS Binghamton, NY issued this flash flood warning at Aug 18, 2021, 10:28 PM EDT for Steuben County, New York. It was in force for 5 hr. 1 report 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
Aug 18, 2021, 10:28 PM EDT (02:28 UTC)
Expired
Aug 19, 2021, 3:44 AM EDT
In force
5 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Emergency
Flash flood emergency
Damage threat
Catastrophic
Flood severity
None

County Steuben County, NY

The radar

The Binghamton radar (KBGM), 119 km from the middle of the area, began a volume at 02:30 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.

What was reported inside it

TimeReportWhereRemark
Aug 19, 2:30 AM EDTHEAVY RAIN 5.13 W Jasper, NY24 HOUR.

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 00:00Z, 2.5 hours before the alert went out and 141 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 00:00Z on 2021-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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, Buffalo Intl Airport, NY at 00:00Z on 2021-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.193958Sfc1 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
11 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

833 
WGUS51 KBGM 190228
FFWBGM
NYC101-190800-
/O.NEW.KBGM.FF.W.0049.210819T0228Z-210819T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
1028 PM EDT Wed Aug 18 2021

...FLASH FLOOD EMERGENCY FOR ADDISON...

The National Weather Service in Binghamton has issued a

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

* Until 400 AM EDT.

* At 1028 PM EDT, Doppler radar indicated heavy rain in southern 
  Steuben County. Between 2.5 and 4 inches of rain have fallen. 
  Additional rainfall amounts up to 1 inch are possible in the 
  warned area. Life-Threatening Flash flooding is already occurring.

  This is a FLASH FLOOD EMERGENCY for Addison. This is a 
  PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!

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

  SOURCE...Radar.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Lindley, Addison, Woodhull, Jasper, Troupsburg, Erwins, Gang Mills 
  and Pinnacle State Park.

The Tuscarora Creek at Addison is at record levels and is 
threatening the town of Addison. Life-threatening dangerous flooding 
is on-going.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4213 7761 4217 7715 4201 7712 4201 7760

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

NICOSIA
2 follow-up statements
522 
WGUS71 KBGM 190345
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
1145 PM EDT Wed Aug 18 2021

NYC101-190800-
/O.CON.KBGM.FF.W.0049.000000T0000Z-210819T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Steuben NY-
1145 PM EDT Wed Aug 18 2021

...FLASH FLOOD EMERGENCY FOR ADDISON...

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY FOR 
SOUTHERN STEUBEN COUNTY...

At 1145 PM EDT, emergency management reported major flash flooding 
in southern Steuben County. Between 2.5 and 4 inches of rain have 
fallen. The heaviest rain has ended. Runoff and high water continues 
to cause major flash flooding in southern Steuben County.

This is a FLASH FLOOD EMERGENCY for Addison. This is a PARTICULARLY 
DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!

HAZARD...Life threatening flash flooding.

SOURCE...Emergency management reported.

IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
         GROUND NOW! Life threatening flash flooding of low water
         crossings, small creeks and streams, urban areas,
         highways, streets and underpasses.

Some locations that will experience flash flooding include...
Lindley, Addison, Woodhull, Jasper, Troupsburg, Erwins, Gang Mills 
and Pinnacle State Park.

Between 2 and 5 feet of water were reported to be flowing through 
the hamlet of Woodhull. Evacuations were taking place in the Village 
of Addison. Several cars have been reported to have been swept away 
or stranded in flood waters. The Tuscarora Creek near Addison 
crested at 14.36 feet which exceeded the previous record crest of 13 
feet set in 2004 from the remnants of Hurricane Ivan. Numerous roads 
and bridges were reported to be flooded. A state of emergency is in 
effect for many of these locations.

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 4213 7761 4217 7715 4201 7712 4201 7760

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

NICOSIA
853 
WGUS71 KBGM 190744
FFSBGM

Flash Flood Statement
National Weather Service Binghamton NY
344 AM EDT Thu Aug 19 2021

NYC101-190754-
/O.CAN.KBGM.FF.W.0049.000000T0000Z-210819T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Steuben NY-
344 AM EDT Thu Aug 19 2021

...FLASH FLOOD WARNING FOR SOUTHERN STEUBEN COUNTY HAS BEEN REPLACED 
WITH A FLOOD WARNING...

LAT...LON 4213 7761 4217 7715 4201 7712 4201 7760

$$

BJG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 8:10 PM EDTAreal Flood AdvisoryBGMCayuga, Cortland, Madison, Oneida, Onondaga, Seneca and 2 more6 hr
Aug 18, 10:40 PM EDTFlash Flood WarningBGMCayuga, Seneca, Tompkins, Yates5 hr
Aug 19, 12:35 AM EDTFlash Flood WarningBGMCortland, Onondaga4 hr
Aug 19, 12:41 AM EDTAreal Flood AdvisoryBGMDelaware, Sullivan2 hr
Aug 19, 2:14 AM EDTAreal Flood AdvisoryBGMMadison, Oneida, Onondaga106 min
Aug 19, 2:52 AM EDTRiver Flood WarningBGMTompkins10 days
Aug 19, 3:44 AM EDTAreal Flood WarningBGMSteuben6 hr
Aug 19, 4:02 AM EDTAreal Flood WarningBGMCayuga3 hr
Aug 19, 4:44 AM EDTRiver Flood WarningBGMSteuben3 hr
Aug 19, 4:48 AM EDTRiver Flood WarningBGMChemung11 hr
Aug 19, 5:07 AM EDTAreal Flood WarningBGMOnondaga5 hr
Aug 19, 5:29 AM EDTAreal Flood AdvisoryBGMOneida3 hr
Aug 19, 5:35 AM EDTRiver Flood WarningBGMOnondaga4 hr
Aug 19, 6:12 AM EDTFlash Flood WarningBGMOneida3 hr
Aug 19, 6:59 AM EDTAreal Flood WarningBGMCayuga11 hr
Aug 19, 8:02 AM EDTAreal Flood WarningBGMMadison, Oneida, Onondaga6 hr
Aug 19, 9:22 AM EDTAreal Flood WarningBGMOneida6 hr
Aug 19, 9:53 AM EDTRiver Flood WarningBGMChemung6 hr
Aug 19, 11:12 AM EDTRiver Flood WarningBGMMadison, Oneida10 hr
Aug 19, 3:12 PM EDTAreal Flood WarningBGMOneida9 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; radar from the NEXRAD Level II archive.