Alert archive / New York / Flash Flood Warnings in 2011
Flash Flood Warning 3, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at May 13, 2011, 4:17 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 3 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
- May 13, 2011, 4:17 PM EDT (20:17 UTC)
- Expired
- May 13, 2011, 7:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cattaraugus County, NY, Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 87 km from the middle of the area, began a volume at 20:19 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, 4:42 PM EDT | FLASH FLOOD | 3 N Falconer, NY | GERRY LEVANT ROAD FLOODED |
| May 13, 5:10 PM EDT | FLASH FLOOD | Salamanca, NY | MULTIPLE ROADS CLOSED DUE TO FLOODING. |
| May 13, 5:30 PM EDT | FLASH FLOOD | Falconer, NY | FLOODING ON MEE ROAD. |
| May 13, 5:51 PM EDT | FLASH FLOOD | Falconer, NY | FLOODING ON STONE ROAD. |
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, 8.3 hours before the alert went out and 86 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.
132 WGUS51 KBUF 132017 FFWBUF NYC009-013-132315- /O.NEW.KBUF.FF.W.0003.110513T2017Z-110513T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BUFFALO NY 417 PM EDT FRI MAY 13 2011 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK... THIS INCLUDES THE CITY OF SALAMANCA... CENTRAL CHAUTAUQUA COUNTY IN WESTERN NEW YORK... THIS INCLUDES THE CITY OF JAMESTOWN... * UNTIL 715 PM EDT * AT 410 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED 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 4226 7865 4201 7867 4208 7945 4229 7941 $$ APFFEL
2 follow-up statements
318 WGUS71 KBUF 132049 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 449 PM EDT FRI MAY 13 2011 NYC009-013-132315- /O.CON.KBUF.FF.W.0003.000000T0000Z-110513T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CATTARAUGUS NY-CHAUTAUQUA NY- 449 PM EDT FRI MAY 13 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR CENTRAL CHAUTAUQUA AND SOUTHWESTERN CATTARAUGUS COUNTIES... AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED AREA. RAINFALL AMOUNTS IN EXCESS OF TWO INCHES HAS FALLEN BETWEEN GERRY AND FALCONER...WITH FLOODING ALREADY REPORTED ON THE GERRY LEVANT ROAD. HEAVY RAIN WILL CONTINUE ACROSS THE WARNED AREA...WITH ADDITIONAL FLASH FLOODING LIKELY AS STORMS SLOWLY SHIFT IN LOCATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 4226 7865 4201 7867 4208 7945 4229 7941 $$ APFFEL
725 WGUS71 KBUF 132306 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 706 PM EDT FRI MAY 13 2011 NYC009-013-132315- /O.EXP.KBUF.FF.W.0003.000000T0000Z-110513T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CATTARAUGUS NY-CHAUTAUQUA NY- 706 PM EDT FRI MAY 13 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 715 PM EDT FOR CENTRAL CHAUTAUQUA AND SOUTHWESTERN CATTARAUGUS COUNTIES... AT 705 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED...THUS THE FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4226 7865 4201 7867 4208 7945 4229 7941 $$ APFFEL
The 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, 4:25 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, 5:36 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Erie, Wyoming | 3 hr |
| 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.