Alert archive / New York / Flash Flood Warnings in 2009

Flash Flood Warning 6, NWS Binghamton, NY

July 1, 2009Chemung County, New York; Bradford County, Pennsylvania

NWS Binghamton, NY issued this flash flood warning at Jul 1, 2009, 6:37 PM EDT for Chemung County, New York; Bradford County, Pennsylvania. 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 counties it named.

The facts

Issued
Jul 1, 2009, 6:37 PM EDT (22:37 UTC)
Expired
Jul 1, 2009, 8:41 PM EDT
In force
2 hr
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Flood severity
None

Counties Chemung County, NY, Bradford County, PA

The radar

The Binghamton radar (KBGM), 60 km from the middle of the area, began a volume at 22:37 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.6 hours before the alert went out and 200 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 2009-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 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, Buffalo Intl Airport, NY at 12:00Z on 2009-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
192 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
480 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Binghamton, NY wrote its last area forecast discussion before this flash flood warning went out at Jul 1, 3:19 PM EDT, 3 hours 18 minutes earlier.

Area forecast discussion, Jul 1, 3:19 PM EDT, 3 hours 18 minutes before
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Hazardous weather outlook, Jul 1, 2:55 PM EDT, 3 hours 42 minutes before
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In the hours before

Special weather statement, Jul 1, 1:04 PM EDT, 5 hours 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
104 PM EDT WED JUL 1 2009

NYZ015>017-011800-
CAYUGA NY-SENECA NY-YATES NY-
104 PM EDT WED JUL 1 2009

...STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN YATES...SENECA AND
WEST CENTRAL CAYUGA COUNTIES...

* AT 103 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  STRONG THUNDERSTORM.  THIS STORM WAS LOCATED NEAR KENDAIA...AND
  MOVING NORTHEAST AT 10 MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  WILLARD AND LODI AT 110 PM EDT...
  KENDAIA AND OVID AT 120 PM EDT...
  ROMULUS AND BORDER CITY AT 130 PM EDT...
  SHELDRAKE SPGS AT 140 PM EDT...
  EAST VARICK AT 150 PM EDT...
  FAYETTE AND WATERLOO AT 155 PM EDT...

ANTOHER STRONG STORM WAS LOCATED OVER SOUTHERN SENACA COUNTY MOVING
NORTHEAST AT 10 MPH.

BOTH OF THESE STORMS ARE CAPABLE OF PRODUCING PEA SIZED HAIL AND GUSTY
WINDS.

THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.

MSE
Special weather statement, Jul 1, 2:36 PM EDT, 4 hours 1 minute before
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Local storm report, Jul 1, 3:16 PM EDT, 3 hours 21 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:20 PM EDTAreal Flood AdvisoryBGMMadison, Onondaga2 hr
Jul 1, 1:16 PM EDTSevere Thunderstorm WarningBGMSullivan59 min
Jul 1, 2:08 PM EDTAreal Flood AdvisoryBGMSullivan3 hr
Jul 1, 3:20 PM EDTAreal Flood AdvisoryBGMYates115 min
Jul 1, 6:21 PM EDTAreal Flood AdvisoryBGMChemung114 min
Jul 1, 7:05 PM EDTAreal Flood AdvisoryBGMOneida3 hr
Jul 1, 7:55 PM EDTAreal Flood AdvisoryBGMOneida3 hr

Nearby

Flash Flood Warnings in New York, 2009Flash Flood Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.