Alert archive / New York / Flash Flood Warnings in 2006

Flash Flood Warning 6, NWS Buffalo, NY

July 28, 2006Cayuga County, Oswego County, Wayne County, New York

NWS Buffalo, NY issued this flash flood warning at Jul 28, 2006, 8:38 AM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 3 hr. 2 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: Jul 28, 2006, 8:38 AM EDT (12:38 UTC)
Expired: Jul 28, 2006, 12:00 PM EDT
In force: 3 hr
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

Counties Cayuga County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 74 km from the middle of the area, began a volume at 12:40 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
Jul 28, 10:00 AM EDT	FLASH FLOOD	Fair Haven, NY	MANY ROADS CLOSED...STATE OF EMERGENCY...4.5 INCHES RAIN IN 2 HOURS.
Jul 28, 10:00 AM EDT	FLASH FLOOD	Hannibal, NY	MANY BASEMENTS FLOODED.

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, 0.6 hours before the alert went out and 189 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: 169 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBUF 281241
FFWBUF
NYC011-075-117-281600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
838 AM EDT FRI JUL 28 2006

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WAYNE COUNTY IN WESTERN NEW YORK
  OSWEGO COUNTY IN CENTRAL NEW YORK
  CAYUGA COUNTY IN CENTRAL NEW YORK

* UNTIL 1200 PM EDT

* AT 836 AM EDT...LOCAL OFFICIALS REPORTED FLASH FLOODING FROM       
  REPEATED THUNDERSTORMS OVER THE WARNED AREA.
 
* RAINFALL OF TWO TO FOUR INCHES HAS BEEN REPORTED BETWEEN 6 AND 8   
  AM. MANY ROADS AND BASEMENTS ARE FLOODED.

THE HEAVIEST RAINS SHOULD TAPER OFF BETWEEN 9 AND 10 AM...BUT 
FLOODING FROM RUNOFF WILL CONTINUE FOR A FEW HOURS. ADDITIONAL RAINS 
WILL FALL THROUGH EARLY AFTERNOON BUT SHOULD BE LESS THAN AN INCH.
 
REMEMBER...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.

LAT...LON 4317 7690 4339 7608 4365 7605 4367 7639

$$

SFM

2 follow-up statements

000 
WGUS71 KBUF 281455
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1054 AM EDT FRI JUL 28 2006

NYC011-075-117-281600-
WAYNE NY-OSWEGO NY-CAYUGA NY-
1054 AM EDT FRI JUL 28 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
CAYUGA...OSWEGO AND WAYNE COUNTIES...

AT 1053 AM EDT...THE HEAVIEST RAINS HAVE MOVED EAST OF THE 
AREA...BUT SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE STILL 
POSSIBLE INTO EARLY AFTERNOON. RUNOFF FROM EARLIER RAINS OF TWO TO 
FIVE INCHES CAN STILL CAUSE LOCALIZED PROBLEMS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 4317 7690 4339 7608 4365 7605 4367 7639

$$

SFM

000 
WGUS71 KBUF 281547
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1146 AM EDT FRI JUL 28 2006

NYC011-075-117-281606-
WAYNE NY-OSWEGO NY-CAYUGA NY-
1146 AM EDT FRI JUL 28 2006

...THE FLASH FLOOD WARNING FOR CAYUGA...OSWEGO AND WAYNE COUNTIES 
WILL BE ALLOWED TO EXPIRE AT 12 NOON...

ALTHOUGH PONDING OF LOW LYING AND POOR DRAINAGE AREAS FROM EARLIER 
RAINS OF 2 TO 5 INCHES WILL BE POSSIBLE FOR AWHILE UNTIL THE WATER 
HAS TIME TO RUN OFF...ONLY LIGHTER SHOWERS ARE EXPECTED THROUGH 
EARLY AFTERNOON.

LAT...LON 4317 7690 4339 7608 4365 7605 4367 7639

$$

SFM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 5:59 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	46 min

Nearby

Flash Flood Warnings in New York, 2006 Every flash flood warning in 2006

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.