Alert archive / New York / Flash Flood Warnings in 2012
Flash Flood Warning 6, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Aug 9, 2012, 7:20 PM EDT for Allegany County, Cattaraugus County, New York. It was in force for 3 hr. 3 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
- Aug 9, 2012, 7:20 PM EDT (23:20 UTC)
- Expired
- Aug 9, 2012, 10:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Allegany County, NY, Cattaraugus County, NY
The radar
The Buffalo radar (KBUF), 97 km from the middle of the area, began a volume at 23:20 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 |
|---|---|---|---|
| Aug 9, 7:34 PM EDT | FLASH FLOOD | Portville, NY | LILLI BRIDGE ROAD REPORTED FLOODED IN THE VILLAGE OF PORTVILLE. |
| Aug 9, 7:35 PM EDT | FLASH FLOOD | Bolivar, NY | FLOODING ON SEVERAL ROADS IN THE TOWN OF BOLIVAR. |
| Aug 9, 9:15 PM EDT | FLASH FLOOD | Olean, NY | REPORT OF FLASH FLOODING ON WEST RIVER RD... OLEAN. |
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, 11.3 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1185 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
749
WGUS51 KBUF 092320
FFWBUF
NYC003-009-100215-
/O.NEW.KBUF.FF.W.0006.120809T2320Z-120810T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
720 PM EDT THU AUG 9 2012
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ALLEGANY COUNTY IN WESTERN NEW YORK...
SOUTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK...
THIS INCLUDES THE CITY OF OLEAN...
* UNTIL 1015 PM EDT
* AT 715 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE WARNED
AREA. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR ARE LIKELY AS
THUNDERSTORMS TRAIN NORTHEAST ACROSS THE SAME AREAS. THE RISK
FOR FLASH FLOODING WILL BE GREATEST FROM AN AREA STRETCHING FROM
OLEAN TO ANGELICA.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 4200 7864 4243 7804 4237 7772 4234 7772
4201 7813
$$
TJP2 follow-up statements
280
WGUS71 KBUF 100011
FFSBUF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
811 PM EDT THU AUG 9 2012
NYC003-009-100215-
/O.CON.KBUF.FF.W.0006.000000T0000Z-120810T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLEGANY NY-CATTARAUGUS NY-
811 PM EDT THU AUG 9 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
SOUTHEASTERN CATTARAUGUS AND ALLEGANY COUNTIES...
AT 803 PM EDT...RADAR ESTIMATES THAT UP TO 3 INCHES OF RAIN HAS
FALLEN NEAR OLEAN AND PORTVILLE. THERE IS FLASH FLOODING ALREADY
OCCURRING IN PORTIONS OF PORTVILLE...BOLIVAR...AND NEARBY LOCATIONS.
ADDITIONAL STORMS ARE APPROACHING FROM THE SOUTHWEST...WITH
ADDITIONAL HEAVY RAINFALL EXPECTED IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 4200 7864 4243 7804 4237 7772 4234 7772
4201 7813
$$
APFFEL179 WGUS71 KBUF 100129 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 929 PM EDT THU AUG 9 2012 NYC003-009-100215- /O.CON.KBUF.FF.W.0006.000000T0000Z-120810T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ALLEGANY NY-CATTARAUGUS NY- 929 PM EDT THU AUG 9 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR SOUTHEASTERN CATTARAUGUS AND SOUTHWESTERN ALLEGANY COUNTIES... AT 925 PM EDT...2 TO 4 INCHES OF RAIN HAS FALLEN NEAR PORTVILLE AND OLEAN OVER THE PAST THREE HOURS. THIS HAS RESULTED IN SIGNIFICANT FLOODING IN THE AREA. ALTHOUGH THE HEAVIEST RAIN HAS ENDED...CREEKS AND STREAM MAY STILL CONTINUE TO RISE FOR THE NEXT HOUR OR TWO AS RAINFALL RUNS OFF. 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 4200 7857 4216 7841 4217 7809 4201 7813 $$ APFFEL
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 3:31 PM EDT | Special Marine Warning | BUF | 44 min | |
| Aug 9, 3:59 PM EDT | Special Weather Statement | BUF | Lewis | 61 min |
| Aug 9, 4:29 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 31 min |
| Aug 9, 6:56 PM EDT | Special Weather Statement | BUF | Allegany | 49 min |
| Aug 9, 7:07 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 53 min |
Nearby
Flash Flood Warnings in New York, 2012Every flash flood warning in 2012
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.