Alert archive / New York / Flash Flood Warnings in 2014

Flash Flood Warning 3, NWS Buffalo, NY

May 13, 2014Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this flash flood warning at May 13, 2014, 7:10 AM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 5 hr. 9 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
May 13, 2014, 7:10 AM EDT (11:10 UTC)
Expired
May 13, 2014, 12:15 PM EDT
In force
5 hr
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Flood severity
None

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 62 km from the middle of the area, began a volume at 11:11 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
May 13, 8:00 AM EDTFLASH FLOODDerby, NYTIME ESTIMATED.
May 13, 8:00 AM EDTFLASH FLOODEvans Center, NYTIME ESTIMATED
May 13, 9:00 AM EDTFLASH FLOODForestville, NYTIME ESTIMATED
May 13, 9:00 AM EDTFLASH FLOODGowanda, NYWATER RESCUES AND ABOUT 30 HOMES NEAR THATCHER BROOK EVACUATED DUE TO HIGH WATER. ROUTE 39 AND 62 TO ROUTE 353 AND 62 CLOSED. TIME ESTIMATED.
May 13, 9:00 AM EDTFLASH FLOODGowanda, NYWATER RESCUES AND EVACUATIONS DUE TO HIGH WATER...TIME ESTIMATED.
May 13, 9:00 AM EDTFLASH FLOODPerrysburg, NYNORTH RD AND NUMEROUS ROADS OTHER ROADS CLOSED DUE TO FLOODING...SOME ROAD SHOULDERS WASHED OUT.
May 13, 9:00 AM EDTFLASH FLOODPerrysburg, NYNUMEROUS ROADS CLOSED DUE TO FLOODING...SOME ROAD SHOULDERS WASHED OUT.
May 13, 9:00 AM EDTFLASH FLOODSilver Creek, NYEVACUATIONS DUE TO HIGH WATER IN SILVER CREEK
May 13, 9:00 AM EDTFLASH FLOODSilver Creek, NYPORTIONS OF ROUTE 5 FROM RT 20 TO OLD LAKESHORE RD CLOSED...FLOODING AT OLIVER PLACE AND LINCOLN AVE FROM WALNUT CREEK. EVACUATIONS DUE TO HIGH WATER IN SILVER CREEK.

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, 11.2 hours before the alert went out and 62 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 2014-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2014-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1144 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
156 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.

633 
WGUS51 KBUF 131110
FFWBUF
NYC009-013-029-131415-
/O.NEW.KBUF.FF.W.0003.140513T1110Z-140513T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
710 AM EDT TUE MAY 13 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITIES OF...DUNKIRK...FREDONIA...
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK...

* UNTIL 1015 AM EDT

* AT 705 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  OVER TWO INCHES OF RAIN HAS FALLEN OVER THE PAST 3 HOURS FROM
  SLOW MOVING SHOWERS AND THUNDERSTORMS.

LAW ENFORCEMENT REPORTED MANY ROADS CLOSED DUE TO HIGH WATER IN THE 
WARNED AREA. 

OCCASIONAL SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS 
THE REGION THROUGH 9 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4242 7947 4250 7935 4255 7923 4256 7916
      4271 7904 4269 7860 4244 7855 4243 7920
      4232 7920 4232 7948

$$

TMA
3 follow-up statements
108 
WGUS71 KBUF 131158
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
758 AM EDT TUE MAY 13 2014

NYC009-013-029-131415-
/O.CON.KBUF.FF.W.0003.000000T0000Z-140513T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
758 AM EDT TUE MAY 13 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT FOR
SOUTHERN ERIE...NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN CATTARAUGUS
COUNTIES...

LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SEVERAL ROADS CLOSED IN THE 
TOWNS OF PERRYSBURG...PERSIA AND NORTH COLLINS DUE TO HIGH WATER.

PERSISTENT SLOW MOVING SHOWERS AND THUNDERSTORMS HAVE PRODUCED OVER 
TWO INCHES OF RAIN EARLY THIS MORNING. 

MORE SHOWERS AND THUNDERSTORMS PRODUCING HEAVY RAINFALL CAN BE 
EXPECTED ACROSS THE WARNED AREA THROUGH 10 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4242 7947 4250 7935 4255 7923 4256 7916
      4271 7904 4269 7860 4244 7855 4243 7920
      4232 7920 4232 7948

$$

TMA
102 
WGUS51 KBUF 131409
FFWBUF
NYC009-013-029-131615-
/O.EXT.KBUF.FF.W.0003.000000T0000Z-140513T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1009 AM EDT TUE MAY 13 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
  NORTHEASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK...
  THIS INCLUDES THE CITIES OF...DUNKIRK...FREDONIA...
  SOUTHERN ERIE COUNTY IN WESTERN NEW YORK...

* UNTIL 1215 PM EDT

* AT 1006 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING FROM HEAVY SHOWERS AND THUNDERSTORMS THAT MOVED ACROSS
  THE REGION EARLIER IN THE MORNING. WHILE SIGNIFICANT RAINFALL IS
  NOT EXPECTED FOR AT LEAST THE NEXT COUPLE HOURS...FLASH FLOODING 
  IN THE WARNED AREA WILL PERSIST. ADDITIONAL SHOWERS AND 
  THUNDERSTORMS...SOME WITH HEAVY RAIN...CAN BE EXPECTED AS WE 
  PROGRESS THROUGH THE AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4242 7947 4250 7935 4255 7923 4256 7916
      4271 7904 4269 7860 4244 7855 4243 7920
      4232 7920 4232 7948

$$

RSH
591 
WGUS71 KBUF 131612
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1212 PM EDT TUE MAY 13 2014

NYC009-013-029-131621-
/O.EXP.KBUF.FF.W.0003.000000T0000Z-140513T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-
1212 PM EDT TUE MAY 13 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1215 PM EDT FOR SOUTHERN
ERIE...NORTHEASTERN CHAUTAUQUA AND NORTHWESTERN CATTARAUGUS
COUNTIES...

AT 1211 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE 
THUNDERSTORMS THAT PROMPTED THE FLASH FLOOD WARNING HAVE EXITED THE 
AREA...THUS THE FLOOD WARNING WILL BE ALLOWED TO EXPIRE.

ADDITIONAL SHOWERS AND THUNDERSTORMS WILL LIKELY MOVE ACROSS THIS 
AREA THOUGH LATER THIS AFTERNOON AND EVENING.

LAT...LON 4242 7947 4250 7935 4255 7923 4256 7916
      4271 7904 4269 7860 4244 7855 4243 7920
      4232 7920 4232 7948

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 5:57 AM EDTFlash Flood WarningBUFCattaraugus, Chautauqua6 hr
May 13, 6:47 AM EDTAreal Flood AdvisoryBUFCattaraugus, Chautauqua, Erie3 hr
May 13, 7:22 AM EDTAreal Flood AdvisoryBUFChautauqua3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.