Alert archive / New York / Flash Flood Warnings in 2004

Flash Flood Warning 4, NWS Buffalo, NY

May 13, 2004Lewis County, New York

NWS Buffalo, NY issued this flash flood warning at May 13, 2004, 3:05 PM EDT for Lewis County, New York. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 13, 2004, 3:05 PM EDT (19:05 UTC)
Expired: May 13, 2004, 5:00 PM EDT
In force: 115 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Lewis County, NY

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.1 hours before the alert went out and 183 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: 230 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 1092 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KBUF 131905
FFWBUF
NYC049-132100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
305 PM EDT THU MAY 13 2004

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXTENDED A

* FLASH FLOOD WARNING FOR...
  LEWIS COUNTY IN CENTRAL NEW YORK

* UNTIL 500 PM EDT

* AT 252 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 6
  MILES NORTH OF INDIAN RIVER TO 10 MILES WEST OF INDIAN RIVER TO 6
  MILES NORTHWEST OF LOWVILLE TO 15 MILES EAST OF LOWVILLE...MOVING 
  NORTHEAST AT 5 MPH AND REFORMING ALONG THE EASTERN BANKS OF THE
  BLACK RIVER.

* THUNDERSTORMS PRODUCING FLASH FLOODING WILL BE NEAR...
  CASTORLAND...CROGHAN AND INDIAN RIVER...AND ALSO ALONG NUMBER FOUR
  ROAD AND ERIE CANAL ROAD THROUGH 500 PM EDT.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA. THE GREATEST RAINFALL TOTALS THROUGH 300 PM RANGED FROM 
2 TO 2.5 INCHES.

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 OR THE HEAVY RAINS MAY HAVE WASHED THE ROAD OUT UNDER THE 
FLOWING WATER. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED 
QUICKLY. MOVE TO HIGHER GROUND.

LAT...LON 4409 7534 4391 7563 4379 7566 4366 7517
          4392 7461 4406 7510 4418 7506 4435 7477

$$

WCH

2 follow-up statements

000 
WGUS71 KBUF 131950
FFSBUF
NYC049-132100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
350 PM EDT THU MAY 13 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 500 PM EDT FOR LEWIS
COUNTY...

AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 15 MILES NORTHEAST OF INDIAN
RIVER TO 6 MILES NORTHWEST OF LOWVILLE TO LOWVILLE TO 13 MILES 
SOUTHEAST OF LOWVILLE...MOVING NORTHEAST AT 10 MPH AND ALSO 
REFORMING ALONG THE BLACK RIVER.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
LOWVILLE...CROGHAN...CASTORLAND AND INDIAN RIVER.

ALTHOUGH THE STORMS HAVE WEAKENED SOME SINCE 300 PM...ADDITIONAL 
RAINFALL AMOUNTS OF 1 INCH TO 1.5 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

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...OR THE ROADWAY MAY HAVE BEEN WASHED OUT UNDER THE FLOWING 
WATER. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

LAT...LON 4409 7534 4391 7563 4379 7566 4366 7517
          4392 7461 4406 7510 4418 7506 4435 7477

$$

WCH

000 
WGUS71 KBUF 132059
FFSBUF
NYC049-132110-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
458 PM EDT THU MAY 13 2004

...THE FLASH FLOOD WARNING FOR LEWIS COUNTY WILL EXPIRE AT 500 PM
EDT...

THE CELLS THAT PROMPTED THE WARNING HAVE MOVED TO THE EAST OUT OF 
THE COUNTY.  THERE IS NO LONGER AN IMMEDIATE THREAT OF FLOODING...
BUT ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN ARE POSSIBLE THIS 
EVENING.

LAT...LON 4409 7534 4391 7563 4379 7566 4366 7517
          4392 7461 4406 7510 4418 7506 4435 7477

$$

APB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 12:31 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	44 min
May 13, 1:16 PM EDT	Flash Flood Warning	BUF	Lewis	119 min
May 13, 1:18 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	57 min
May 13, 1:27 PM EDT	Flash Flood Warning	BUF	Ontario	2 hr
May 13, 2:31 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	29 min
May 13, 2:34 PM EDT	Special Marine Warning	BUF		41 min

Nearby

Flash Flood Warnings in New York, 2004 Every flash flood warning in 2004

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.