Alert archive / New York / Flash Flood Warnings in 2016
Flash Flood Warning 9, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Sep 18, 2016, 12:23 AM EDT for Allegany County, Cattaraugus 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
- Sep 18, 2016, 12:23 AM EDT (04:23 UTC)
- Expired
- Sep 18, 2016, 3:30 AM 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), 92 km from the middle of the area, began a volume at 04:27 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 |
|---|---|---|---|
| Sep 18, 1:00 AM EDT | FLASH FLOOD | Allegany, NY | FLOODED BASEMENTS REPORTED IN ALLEGANY. |
| Sep 18, 1:00 AM EDT | FLASH FLOOD | Hinsdale, NY | MULTIPLE ROAD CLOSURES AROUND HINSDALE DUE TO FLASH FLOODING IN ADDITION TO FLOODED BASEMENTS IN HINSDALE. |
| Sep 18, 1:30 AM EDT | FLASH FLOOD | 1 Wsw Friendship, NY | COUNTY ROAD 20 CLOSED. WATER RESCUE ONGOING. |
| Sep 18, 3:00 AM EDT | FLASH FLOOD | Cuba, NY | EVACUATIONS ONGOING IN CUBA DUE TO FLOODING. |
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, 4.4 hours before the alert went out and 89 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
- 211 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted.
013 WGUS51 KBUF 180423 FFWBUF NYC003-009-180730- /O.NEW.KBUF.FF.W.0009.160918T0423Z-160918T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BUFFALO NY 1223 AM EDT SUN SEP 18 2016 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK... WEST CENTRAL ALLEGANY COUNTY IN WESTERN NEW YORK... * UNTIL 330 AM EDT. * AT 1222 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED AREA. OVER TWO INCHES OF RAIN HAVE ALREADY FALLEN WITH AN ADDITIONAL INCH OR MORE OF RAIN POSSIBLE. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... OLEAN...ALLEGANY...CUBA...ST. BONAVENTURE...WESTON MILLS... HINSDALE...FRIENDSHIP AND BELMONT. THIS INCLUDES INTERSTATE 86 BETWEEN EXITS 24 AND 31. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED ROADS. FIND AN ALTERNATE ROUTE. && LAT...LON 4206 7855 4223 7863 4235 7796 4220 7787 $$ WOOD
2 follow-up statements
142 WGUS71 KBUF 180540 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 140 AM EDT SUN SEP 18 2016 NYC003-009-180730- /O.CON.KBUF.FF.W.0009.000000T0000Z-160918T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CATTARAUGUS NY-ALLEGANY NY- 140 AM EDT SUN SEP 18 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM EDT FOR SOUTHEASTERN CATTARAUGUS AND WEST CENTRAL ALLEGANY COUNTIES... AT 136 AM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN SEVERAL LOCATIONS INCLUDING HINSDALE. IN ADDITION COUNTY ROAD 20 IN ALLEGANY COUNTY BETWEEN CUBA AND FRIENDSHIP HAS BEEN CLOSED DUE TO FLOODING. BETWEEN THREE AND FOUR INCHES OF RAIN HAVE ALREADY FALLEN ACROSS THE AFFECTED AREAS. FLASH FLOODING IS ALREADY OCCURRING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... OLEAN...ALLEGANY...CUBA...ST. BONAVENTURE...WESTON MILLS... HINSDALE...FRIENDSHIP AND BELMONT. THIS INCLUDES INTERSTATE 86 BETWEEN EXITS 24 AND 31. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED ROADS. FIND AN ALTERNATE ROUTE. && LAT...LON 4206 7855 4223 7863 4235 7796 4220 7787 $$ WOOD
242 WGUS71 KBUF 180731 FFSBUF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 331 AM EDT SUN SEP 18 2016 NYC003-009-180739- /O.EXP.KBUF.FF.W.0009.000000T0000Z-160918T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CATTARAUGUS NY-ALLEGANY NY- 331 AM EDT SUN SEP 18 2016 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN CATTARAUGUS AND WEST CENTRAL ALLEGANY COUNTIES WILL EXPIRE AT 330 AM EDT... THE HEAVY RAIN HAS ENDED. WHILE THE FLASH FLOODING THREAT HAS ENDED...THERE CONTINUE TO BE MULTIPLE AREAS UNDER WATER ACROSS THE AFFECTED AREAS AND A FLOOD WARNING IS IN EFFECT FOR THE AREA. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 4206 7855 4223 7863 4235 7796 4220 7787 $$ WOOD
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 9:39 PM EDT | Special Weather Statement | BUF | Allegany, Cattaraugus, Livingston, Ontario | 66 min |
| Sep 18, 3:29 AM EDT | Areal Flood Warning | BUF | Allegany, Cattaraugus | 3 hr |
| Sep 18, 6:04 PM EDT | Special Weather Statement | BUF | Oswego | 26 min |
Nearby
Flash Flood Warnings in New York, 2016Every flash flood warning in 2016
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.