Alert archive / New York / Flash Flood Warnings in 2014

Flash Flood Warning 19, NWS Buffalo, NY

August 1, 2014Cattaraugus County, New York

NWS Buffalo, NY issued this flash flood warning at Aug 1, 2014, 10:07 PM EDT for Cattaraugus County, New York. It was in force for 3 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
Aug 1, 2014, 10:07 PM EDT (02:07 UTC)
Expired
Aug 2, 2014, 1:00 AM EDT
In force
3 hr
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Flood severity
None

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 97 km from the middle of the area, began a volume at 02:08 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 00:00Z, 2.1 hours before the alert went out and 94 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 2014-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 137 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 2014-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
137 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1801 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

370 
WGUS51 KBUF 020207
FFWBUF
NYC009-020500-
/O.NEW.KBUF.FF.W.0019.140802T0207Z-140802T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1007 PM EDT FRI AUG 1 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL CATTARAUGUS COUNTY IN WESTERN NEW YORK...

* UNTIL 100 AM EDT

* AT 1000 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED FLASH FLOODING FROM THUNDERSTORMS OVER SOUTH CENTRAL
  CATTARAUGUS COUNTY. THE HEAVIEST RAINS ARE FALLING JUST EAST OF 
  LIMESTONE OVER THE CHIPMUNK AND FLATSTONE CREEK BASINS. DOPPLER
  RADAR ESTIMATES THAT OVER 2 INCHES OF RAIN HAS FALLEN OVER THIS
  AREA...AND ANOTHER INCH OF RAIN IS POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 4215 7870 4215 7846 4199 7845 4199 7870

$$

RSH
3 follow-up statements
145 
WGUS71 KBUF 020307
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1107 PM EDT FRI AUG 1 2014

NYC009-020500-
/O.CON.KBUF.FF.W.0019.000000T0000Z-140802T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-
1107 PM EDT FRI AUG 1 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTH
CENTRAL CATTARAUGUS COUNTY...

AT 11 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
  INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER SOUTH 
  CENTRAL CATTARAUGUS COUNTY. THE HEAVIEST RAINS ARE FALLING JUST 
  EAST AND OF LIMESTONE OVER THE CHIPMUNK AND FOUR MILE CREEK
  BASINS. DOPPLER RADAR ESTIMATES THAT OVER 2 INCHES OF RAIN HAS 
  FALLEN OVER THIS AREA SINCE 9:30 PM...AND ANOTHER HALF TO ONE INCH 
  OF RAIN IS POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 4215 7870 4215 7846 4199 7845 4199 7870

$$

RSH
902 
WGUS71 KBUF 020423
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1223 AM EDT SAT AUG 2 2014

NYC009-020500-
/O.CON.KBUF.FF.W.0019.000000T0000Z-140802T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-
1223 AM EDT SAT AUG 2 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTH
CENTRAL CATTARAUGUS COUNTY...

AT 1210 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE HEAVY SHOWERS AND THUNDERSTORMS HAVE MOVED TO THE NORTH... 
OUT OF THE WARNED AREA. HOWEVER...RADAR INDICATED THAT OVER 3 INCHES 
OF RAIN FELL OVER SOUTH CENTRAL CATTARAUGUS COUNTY EAST AND NORTH OF 
LIMESTONE IN THE CHIPMUNK AND FOUR MILE CREEK BASINS. FLOOD WATERS 
IN THIS AREA WILL BE SLOW TO RECEDE...SO THE WARNING WILL REMAIN IN 
EFFECT UNTIL 1 AM EDT.

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 4215 7870 4215 7846 4199 7845 4199 7870

$$

RSH
755 
WGUS71 KBUF 020455
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1255 AM EDT SAT AUG 2 2014

NYC009-020505-
/O.EXP.KBUF.FF.W.0019.000000T0000Z-140802T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-
1255 AM EDT SAT AUG 2 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL CATTARAUGUS
COUNTY...

PONDING OF LOW LYING AND POOR DRAINAGE AREAS WILL BE POSSIBLE FOR
AWHILE UNTIL THE WATER HAS TIME TO RUN OFF.

LAT...LON 4215 7870 4215 7846 4199 7845 4199 7870

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:01 PM EDTAreal Flood WarningBUFWayne3 hr
Aug 1, 8:49 PM EDTAreal Flood AdvisoryBUFMonroe3 hr
Aug 1, 8:50 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus55 min
Aug 1, 9:18 PM EDTSpecial Weather StatementBUFWayne27 min
Aug 1, 9:34 PM EDTFlash Flood WarningBUFWayne3 hr
Aug 1, 9:47 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus58 min
Aug 1, 9:54 PM EDTSpecial Weather StatementBUFCayuga36 min
Aug 1, 11:04 PM EDTSpecial Weather StatementBUFCattaraugus56 min
Aug 2, 12:32 AM EDTSpecial Weather StatementBUFChautauqua58 min
Aug 2, 1:45 AM EDTAreal Flood AdvisoryBUFChautauqua3 hr
Aug 2, 12:29 PM EDTSpecial Weather StatementBUFLewis31 min
Aug 2, 1:28 PM EDTSpecial Weather StatementBUFLewis62 min
Aug 2, 2:15 PM EDTFlash Flood WatchBUFCattaraugus, Chautauqua, Erie, Wyoming9 hr
Aug 2, 4:22 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Chautauqua, Erie, Wyoming83 min
Aug 2, 4:41 PM EDTSpecial Weather StatementBUFOswego64 min
Aug 2, 4:51 PM EDTSpecial Marine WarningBUF54 min
Aug 2, 4:58 PM EDTSpecial Marine WarningBUF92 min
Aug 2, 5:12 PM EDTFlash Flood WarningBUFLivingston, Monroe, Ontario, Wayne, Wyoming4 hr
Aug 2, 5:19 PM EDTFlash Flood WarningBUFCattaraugus, Chautauqua, Erie4 hr
Aug 2, 5:34 PM EDTSpecial Marine WarningBUF56 min
Aug 2, 5:48 PM EDTSpecial Marine WarningBUF87 min
Aug 2, 5:53 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Wyoming28 min
Aug 2, 6:50 PM EDTSpecial Weather StatementBUFGenesee55 min

Nearby

Flash Flood Warnings in New York, 2014Every flash flood warning in 2014

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.