Alert archive / New York / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS Buffalo, NY

July 31, 2016Chautauqua County, New York

NWS Buffalo, NY issued this flash flood warning at Jul 31, 2016, 4:55 PM EDT for Chautauqua County, New York. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 31, 2016, 4:55 PM EDT (20:55 UTC)
Expired: Jul 31, 2016, 8:00 PM EDT
In force: 3 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Flood severity: None

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 82 km from the middle of the area, began a volume at 20:56 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.9 hours before the alert went out and 82 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 67 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

088 
WGUS51 KBUF 312055
FFWBUF
NYC013-010000-
/O.NEW.KBUF.FF.W.0005.160731T2055Z-160801T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
455 PM EDT SUN JUL 31 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL CHAUTAUQUA COUNTY IN WESTERN NEW YORK...

* UNTIL 800 PM EDT

* AT 454 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  STOCKTON...CASSADAGA AND SINCLAIRVILLE. 

LAT...LON 4234 7913 4220 7930 4229 7948 4242 7930

$$

TMA

1 follow-up statement

349 
WGUS71 KBUF 312232
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
632 PM EDT SUN JUL 31 2016

NYC013-312241-
/O.CAN.KBUF.FF.W.0005.000000T0000Z-160801T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHAUTAUQUA NY-
632 PM EDT SUN JUL 31 2016

...THE FLASH FLOOD WARNING FOR EAST CENTRAL CHAUTAUQUA COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT.

LAT...LON 4234 7913 4220 7930 4229 7948 4242 7930

$$

TMA

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 30, 8:14 PM EDT	Special Weather Statement	BUF	Chautauqua	61 min
Jul 31, 2:21 PM EDT	Special Weather Statement	BUF	Chautauqua	54 min
Jul 31, 2:51 PM EDT	Flash Flood Warning	BUF	Cattaraugus, Chautauqua	4 hr
Jul 31, 3:15 PM EDT	Special Weather Statement	BUF	Livingston, Ontario	60 min
Jul 31, 4:06 PM EDT	Special Weather Statement	BUF	Chautauqua	54 min
Jul 31, 4:15 PM EDT	Special Weather Statement	BUF	Ontario	45 min
Jul 31, 5:52 PM EDT	Special Weather Statement	BUF	Erie	23 min

Nearby

Flash Flood Warnings in New York, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.