Alert archive / New York / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Binghamton, NY

August 10, 20095 counties in New York

NWS Binghamton, NY issued this flash flood warning at Aug 10, 2009, 12:49 AM EDT for 5 counties in New York. It was in force for 6 hr. 4 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
Aug 10, 2009, 12:49 AM EDT (04:49 UTC)
Expired
Aug 10, 2009, 6:45 AM EDT
In force
6 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

Counties Broome County, NY, Chenango County, NY, Cortland County, NY, Delaware County, NY, Otsego County, NY

The radar

The Binghamton radar (KBGM), 33 km from the middle of the area, began a volume at 04:51 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 10, 2:55 AM EDTFLASH FLOODCincinnatus, NYFOX ROAD CLOSED DUE TO FLOODING
Aug 10, 3:00 AM EDTFLASH FLOODCoventry, NYROADS CLOSED DUE TO FLOODING
Aug 10, 3:00 AM EDTFLASH FLOODGreene, NYROADS CLOSED DUE TO FLOODING
Aug 10, 3:00 AM EDTFLASH FLOODOxford, NYROADS CLOSED DUE TO FLOODING

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

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 4.8 hours before the alert went out and 154 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 00:00Z on 2009-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 130 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2009-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 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
130 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
515 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KBGM 100449
FFWBGM
NYC007-017-023-025-077-101045-
/O.NEW.KBGM.FF.W.0021.090810T0449Z-090810T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BINGHAMTON NY
1249 AM EDT MON AUG 10 2009

THE NATIONAL WEATHER SERVICE IN BINGHAMTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CORTLAND COUNTY IN CENTRAL NEW YORK...
  SOUTHERN CHENANGO COUNTY IN CENTRAL NEW YORK...
  WEST CENTRAL DELAWARE COUNTY IN CENTRAL NEW YORK...
  EXTREME SOUTHWESTERN OTSEGO COUNTY IN CENTRAL NEW YORK...
  EASTERN BROOME COUNTY IN CENTRAL NEW YORK...

* UNTIL 645 AM EDT

* AT 1244 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  ESTIMATES AND RAIN GAGE REPORTS INDICATED EXCESSIVE RAINFALL OVER 
  THE WARNED AREA. RAINFALL AMOUNTS OF 2-3 INCHES HAVE BEEN
  REPORTED IN SOME LOCATIONS. ADDITIONAL MODERATE TO HEAVY RAIN
  IS LIKELY IN THE AREA THROUGH 3 AM.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AFTON...
  BAINBRIDGE...CINCINNATUS...CORTLAND...DEPOSIT...GREENE...
  GUILFORD...HARPURSVILLE...MARATHON...OXFORD...SANFORD...SIDNEY...
  UNADILLA AND WALTON.

CONSIDERABLE PONDING OF WATER AND BASEMENT FLOODING IN POOR DRAINAGE 
AREAS WILL OCCUR. SMALL STREAMS ARE LIKELY TO FLOOD, AND SOME MAY 
PLUG CULVERTS AND OVERTOP ROADWAYS OR CAUSE ROAD WASHOUTS.  

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE AT 1-877-633-6772...OR BY EMAIL AT
BGM.STORMREPORT@NOAA.GOV.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4267 7584 4203 7475 4200 7544 4224 7585
      4262 7626

$$
2 follow-up statements
000 
WGUS71 KBGM 100715
FFSBGM

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
315 AM EDT MON AUG 10 2009

NYC007-017-023-025-077-101045-
/O.CON.KBGM.FF.W.0021.000000T0000Z-090810T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CORTLAND NY-CHENANGO NY-DELAWARE NY-OTSEGO NY-BROOME NY-
315 AM EDT MON AUG 10 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 AM EDT FOR
NORTHEASTERN BROOME...EXTREME SOUTHWESTERN OTSEGO...WEST CENTRAL
DELAWARE...SOUTHERN CHENANGO AND SOUTHERN CORTLAND COUNTIES...

AT 311 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLOODING 
CONTINUES OVER PORTIONS OF THE WARNED AREA.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AFTON...
  BAINBRIDGE...CINCINNATUS...CORTLAND...DEPOSIT...GREENE...
  GUILFORD...HARPURSVILLE...MARATHON...OXFORD...SANFORD...SIDNEY...
  UNADILLA AND WALTON.

SEVERAL ROADS ARE CLOSED ACROSS SOUTHERN CORTLAND AND CHENANGO 
COUNTIES DUE TO FLOODING. A MUDSLIDE HAS CLOSED ROUTE 26 AND 41 IN 
CINCINNATUS...BETWEEN GEE BROOK ROAD AND WILLET ROAD. ADDITIONAL 
RAINFALL AMOUNTS WILL AVERAGE BETWEEN ONE TENTH AND ONE QUARTER OF 
AN INCH OVER THE NEXT SEVERAL HOURS...AS RAIN MOVES OUT OF THE 
WARNED AREA.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE AT 1-877-633-6772...OR BY EMAIL AT
BGM.STORMREPORT@NOAA.GOV.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4262 7626 4267 7584 4203 7475 4200 7544
      4224 7585

$$



PN
000 
WGUS71 KBGM 100907
FFSBGM

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
507 AM EDT MON AUG 10 2009

NYC007-025-077-100915-
/O.CAN.KBGM.FF.W.0021.000000T0000Z-090810T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DELAWARE NY-OTSEGO NY-BROOME NY-
507 AM EDT MON AUG 10 2009

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
BROOME...EXTREME SOUTHWESTERN OTSEGO AND WEST CENTRAL DELAWARE
COUNTIES...

HEAVY RAINFALL HAS MOVED OUT OF THE AREA...AND ANY ADDITIONAL RAIN 
THIS MORNING IS NOT EXPECTED TO CAUSE FLASH FLOODING.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE AT 1-877-633-6772...OR BY EMAIL AT
BGM.STORMREPORT@NOAA.GOV.

LAT...LON 4239 7540 4236 7539 4228 7542 4220 7542
      4219 7543 4220 7563 4224 7564 4225 7584
      4241 7586 4241 7603 4262 7626 4267 7584
      4240 7538

$$

NYC017-023-101045-
/O.CON.KBGM.FF.W.0021.000000T0000Z-090810T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CORTLAND NY-CHENANGO NY-
507 AM EDT MON AUG 10 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 AM EDT FOR
SOUTHERN CHENANGO AND SOUTHERN CORTLAND COUNTIES...

AT 505 AM EDT...SHOWERS AND THUNDERSTORMS WERE MOVING BACK INTO 
CORTLAND AND CHENANGO COUNTIES. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AFTON...
  BAINBRIDGE...CINCINNATUS...CORTLAND...GREENE...GUILFORD...MARATHON
  AND OXFORD.

ADDITIONAL RAINFALL AMOUNTS OF ONE QUARTER TO ONE HALF INCH CAN BE 
EXPECTED OVER PORTIONS OF THE WARNED AREA...WITH LOCALLY HIGHER 
AMOUNTS POSSIBLE IN STRONGER THUNDERSTORMS. THIS RAINFALL MAY 
EXACERBATE EXISTING FLOODING AND RUNOFF THROUGH THE EARLY MORNING 
HOURS. 

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE AT 1-877-633-6772...OR BY EMAIL AT
BGM.STORMREPORT@NOAA.GOV.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4239 7540 4236 7539 4228 7542 4220 7542
      4219 7543 4220 7563 4224 7564 4225 7584
      4241 7586 4241 7603 4262 7626 4267 7584
      4240 7538

$$



PN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:51 PM EDTAreal Flood AdvisoryBGMBroome, Chenango3 hr
Aug 9, 9:29 PM EDTAreal Flood AdvisoryBGMCayuga, Onondaga3 hr
Aug 9, 10:00 PM EDTSevere Thunderstorm WarningBGMCayuga, Chenango, Cortland, Onondaga28 min
Aug 9, 11:15 PM EDTFlash Flood WarningBGMCayuga, Cortland, Onondaga6 hr
Aug 9, 11:17 PM EDTSevere Thunderstorm WarningBGMSteuben43 min
Aug 9, 11:30 PM EDTFlash Flood WarningBGMDelaware, Sullivan5 hr
Aug 10, 12:00 AM EDTAreal Flood AdvisoryBGMChenango, Cortland3 hr
Aug 10, 2:06 AM EDTRiver Flood WarningBGMDelaware, Sullivan5 hr
Aug 10, 7:50 AM EDTFlash Flood WatchBGMBroome, Cayuga, Chemung, Chenango, Cortland, Delaware and 11 more14 hr
Aug 10, 2:56 PM EDTSevere Thunderstorm WarningBGMCayuga, Seneca, Yates49 min
Aug 10, 3:24 PM EDTAreal Flood AdvisoryBGMCayuga, Onondaga, Seneca4 hr
Aug 10, 3:43 PM EDTSevere Thunderstorm WarningBGMCayuga, Cortland, Onondaga, Seneca62 min
Aug 10, 3:46 PM EDTSevere Thunderstorm WarningBGMCayuga, Seneca, Tompkins44 min
Aug 10, 4:13 PM EDTSevere Thunderstorm WarningBGMChenango, Cortland, Madison, Onondaga, Tompkins62 min
Aug 10, 4:24 PM EDTTornado WarningBGMCortland, Tompkins30 min
Aug 10, 4:29 PM EDTSevere Thunderstorm WarningBGMMadison, Onondaga46 min
Aug 10, 4:38 PM EDTSevere Thunderstorm WarningBGMCayuga, Schuyler, Seneca, Tompkins, Yates52 min
Aug 10, 4:50 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Cortland55 min
Aug 10, 4:56 PM EDTSevere Thunderstorm WarningBGMBroome, Cortland, Tompkins49 min
Aug 10, 5:00 PM EDTSevere Thunderstorm WarningBGMTioga60 min
Aug 10, 5:01 PM EDTFlash Flood WarningBGMCortland3 hr
Aug 10, 5:03 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida57 min
Aug 10, 5:18 PM EDTFlash Flood WarningBGMTompkins3 hr
Aug 10, 5:23 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Tioga52 min
Aug 10, 5:34 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware, Otsego56 min
Aug 10, 5:41 PM EDTFlash Flood WarningBGMBroome, Chenango3 hr
Aug 10, 5:55 PM EDTAreal Flood AdvisoryBGMBroome, Tioga117 min
Aug 10, 6:06 PM EDTSevere Thunderstorm WarningBGMDelaware54 min
Aug 10, 6:12 PM EDTSevere Thunderstorm WarningBGMBroome, Chenango, Delaware, Sullivan63 min
Aug 10, 6:15 PM EDTSevere Thunderstorm WarningBGMOneida30 min
Aug 10, 6:24 PM EDTSevere Thunderstorm WarningBGMSullivan66 min
Aug 10, 6:54 PM EDTSevere Thunderstorm WarningBGMDelaware, Sullivan66 min
Aug 10, 6:57 PM EDTAreal Flood AdvisoryBGMBroome, Delaware, Sullivan100 min

Nearby

Flash Flood Warnings in New York, 2009Every flash flood warning in 2009

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.