Alert archive / New York / Flash Flood Warnings in 2015
Flash Flood Warning 26, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Aug 11, 2015, 7:53 PM EDT for 4 counties in 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 11, 2015, 7:53 PM EDT (23:53 UTC)
- Expired
- Aug 11, 2015, 11:00 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, Erie County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 41 km from the middle of the area, began a volume at 23:52 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 11, 8:09 PM EDT | FLASH FLOOD | Boston, NY | NUMEROUS HOMES FLOODED ALONG BOSTON STATE RD DUE TO 18 MILE CREEK. |
| Aug 11, 8:09 PM EDT | FLASH FLOOD | Colden, NY | RT 240 FLOODED NEAR THE POST OFFICE IN COLDEN. |
| Aug 11, 8:25 PM EDT | FLASH FLOOD | Glenwood, NY | STATE RT240-VAUGHN RD FLOODED TO THE POST OFFICE IN GLENWOOD |
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, 11.9 hours before the alert went out and 38 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
- 1 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
668 WGUS51 KBUF 112353 FFWBUF NYC003-009-029-121-120300- /O.NEW.KBUF.FF.W.0026.150811T2353Z-150812T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BUFFALO NY 753 PM EDT TUE AUG 11 2015 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN ERIE COUNTY IN WESTERN NEW YORK... NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK... NORTHWESTERN ALLEGANY COUNTY IN WESTERN NEW YORK... SOUTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK... * UNTIL 1100 PM EDT * AT 753 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING ACROSS THE WARNED AREA. FLASH FLOODING IS ALREADY OCCURRING. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... BOSTON...COLDEN...ARCADE...CHAFFEE...EAST CONCORD...NORTH BOSTON... YORKSHIRE AND HOLLAND. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 4264 7882 4275 7877 4258 7821 4238 7837 $$ WOOD
2 follow-up statements
402 WGUS71 KBUF 120131 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 931 PM EDT TUE AUG 11 2015 NYC003-009-121-120137- /O.CAN.KBUF.FF.W.0026.000000T0000Z-150812T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CATTARAUGUS NY-ALLEGANY NY-WYOMING NY- 931 PM EDT TUE AUG 11 2015 ...THE FLASH FLOOD WARNING FOR NORTHEASTERN CATTARAUGUS... NORTHWESTERN ALLEGANY AND SOUTHWESTERN WYOMING COUNTIES IS CANCELLED... THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES. LAT...LON 4264 7882 4275 7877 4263 7849 4252 7862 $$ NYC029-120300- /O.CON.KBUF.FF.W.0026.000000T0000Z-150812T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ERIE NY- 931 PM EDT TUE AUG 11 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR SOUTHEASTERN ERIE COUNTY... AT 927 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING ACROSS PORTIONS OF SOUTHEASTERN ERIE COUNTY INCLUDING THE TOWNS OF BOSTON AND COLDEN. AS MUCH AS TWO TO THREE INCHES OF RAIN HAVE FALLEN. WHILE RAIN HAS ENDED ACROSS THE AFFECTED AREA...FLASH FLOODING IS ONGOING AT THIS TIME. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... BOSTON...COLDEN...EAST CONCORD...NORTH BOSTON...HOLLAND AND WEST FALLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 4264 7882 4275 7877 4263 7849 4252 7862 $$ WOOD
886 WGUS71 KBUF 120251 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1051 PM EDT TUE AUG 11 2015 NYC029-120257- /O.CAN.KBUF.FF.W.0026.000000T0000Z-150812T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ERIE NY- 1051 PM EDT TUE AUG 11 2015 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN ERIE COUNTY IS CANCELLED... AREA LAW ENFORCEMENT INDICATES THAT FLOOD WATERS HAVE MOSTLY RECEDED...AND ARE NO LONGER EXPECTED TO POSE A THREAT TO LIFE OR PROPERTY. IF YOU WILL BE TRAVELING...PLEASE CONTINUE TO HEED ANY ROAD CLOSURES...AND REMAIN ON THE LOOKOUT FOR ANY LEFTOVER DEBRIS ON AREA ROADWAYS. LAT...LON 4264 7882 4275 7877 4263 7849 4252 7862 $$ JJR
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:22 PM EDT | Areal Flood Warning | BUF | Monroe, Ontario | 3 hr |
| Aug 10, 10:17 PM EDT | Small Craft Advisory | BUF | 17 hr |
Nearby
Flash Flood Warnings in New York, 2015Every flash flood warning in 2015
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.