Alert archive / New York / Flash Flood Warnings in 2011
Flash Flood Warning 6, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at May 13, 2011, 5:36 PM EDT for Cattaraugus County, Erie County, Wyoming County, New York. It was in force for 3 hr. 2 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, 2011, 5:36 PM EDT (21:36 UTC)
- Expired
- May 13, 2011, 8:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cattaraugus County, NY, Erie County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 48 km from the middle of the area, began a volume at 21:35 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 13, 7:13 PM EDT | FLASH FLOOD | Java Center, NY | FLOODING ON RT 77. |
| May 13, 7:15 PM EDT | FLASH FLOOD | Arcade, NY | FLOODING ON RT 39. |
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 12:00Z, 9.6 hours before the alert went out and 45 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.
- Mixed-layer CAPE
- 4 J/kg
- Mixed-layer CIN
- -229 J/kg
- Mixed-layer LCL
- 969 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
593
WGUS51 KBUF 132136
FFWBUF
NYC009-029-121-140030-
/O.NEW.KBUF.FF.W.0006.110513T2136Z-110514T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
536 PM EDT FRI MAY 13 2011
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
SOUTHEASTERN ERIE COUNTY IN WESTERN NEW YORK...
WYOMING COUNTY IN WESTERN NEW YORK...
* UNTIL 830 PM EDT
* AT 531 PM EDT...FLASH FLOODING WAS REPORTED FROM THUNDERSTORMS
OVER THE WARNED AREA. RAINFALL AMOUNTS IN EXCESS OF AN INCH AND A
HALF HAVE FALLEN NEAR ARCADE...VARYSBURG...AND ATTICA...WITH
ADDITIONAL HEAVY RAINFALL LIKELY TO PRODUCE FLASH FLOODING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
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 4248 7865 4266 7851 4287 7828 4287 7812
4286 7804 4252 7829 4252 7831 4250 7831
4244 7835
$$
APFFEL2 follow-up statements
965
WGUS71 KBUF 132239
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
639 PM EDT FRI MAY 13 2011
NYC009-029-121-140030-
/O.CON.KBUF.FF.W.0006.000000T0000Z-110514T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-WYOMING NY-ERIE NY-
639 PM EDT FRI MAY 13 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
SOUTHEASTERN ERIE...WYOMING AND NORTHEASTERN CATTARAUGUS COUNTIES...
AT 636 PM EDT...THUNDERSTORMS CONTINUE ACROSS THE WARNED AREA.
RAINFALL AMOUNTS IN EXCESS OF TWO INCHES HAS FALLEN NEAR
ARCADE...ATTICA...AND VARYSBURG. THIS IS LIKELY TO PRODUCE FLASH
FLOODING IN PORTIONS OF THE WARNING AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 4248 7865 4266 7851 4287 7828 4287 7812
4286 7804 4252 7829 4252 7831 4250 7831
4244 7835
$$
APFFEL301
WGUS71 KBUF 140029
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
829 PM EDT FRI MAY 13 2011
NYC009-029-121-140039-
/O.EXP.KBUF.FF.W.0006.000000T0000Z-110514T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATTARAUGUS NY-WYOMING NY-ERIE NY-
829 PM EDT FRI MAY 13 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 830 PM EDT FOR SOUTHEASTERN
ERIE...WYOMING AND NORTHEASTERN CATTARAUGUS COUNTIES...
LAT...LON 4248 7865 4266 7851 4287 7828 4287 7812
4286 7804 4252 7829 4252 7831 4250 7831
4244 7835
$$
APFFELThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 4:02 PM EDT | Areal Flood Advisory | BUF | Cattaraugus, Chautauqua | 5 hr |
| May 13, 4:17 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Chautauqua | 3 hr |
| May 13, 4:25 PM EDT | Areal Flood Advisory | BUF | Allegany | 5 hr |
| May 13, 5:01 PM EDT | Flash Flood Warning | BUF | Livingston, Ontario | 116 min |
| May 13, 5:14 PM EDT | Flash Flood Warning | BUF | Allegany | 5 hr |
| May 13, 5:20 PM EDT | Special Weather Statement | BUF | Wyoming | 55 min |
| May 13, 6:25 PM EDT | Flash Flood Warning | BUF | Livingston, Ontario, Wyoming | 105 min |
Nearby
Flash Flood Warnings in New York, 2011Every flash flood warning in 2011
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.