Alert archive / New York / Flash Flood Warnings in 2005

Flash Flood Warning 39, NWS New York, NY

October 11, 2005Suffolk County, New York

NWS New York, NY issued this flash flood warning at Oct 11, 2005, 5:41 PM EDT for Suffolk 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
Oct 11, 2005, 5:41 PM EDT (21:41 UTC)
Expired
Oct 11, 2005, 8:45 PM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Counties, with a storm outline in the text

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 43 km from the middle of the area, began a volume at 21:45 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

Brookhaven, NY (KOKX), launched 12:00Z, 9.7 hours before the alert went out and 43 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2005-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2005-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
458 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
86 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 KOKX 112141
FFWOKX
NYC103-120045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE UPTON NY
541 PM EDT TUE OCT 11 2005

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN SUFFOLK COUNTY IN SOUTHEAST NEW YORK.

* UNTIL 845 PM EDT.

* AT 536 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. DOPPLER RADAR
  WAS ESTIMATING RAINFALL OF 1 TO 2 INCHES SINCE 430 PM...WITH AT
  LEAST 1 MORE HOUR OF HEAVY RAINFALL EXPECTED.

* AREAS MOST LIKELY TO SEE FLOODING DURING THE NEXT COUPLE OF HOURS
  WILL BE THOSE EAST OF THE WILLIAM FLOYD PARKWAY TO RIVERHEAD AND
  HAMPTON BAYS.

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.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 4117 7224 4107 7182 4074 7279 4098 7289

$$

REYNOLDS
1 follow-up statement
000 
WGUS71 KOKX 120020
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE UPTON NY
820 PM EDT TUE OCT 11 2005

NYC103-120045-
SUFFOLK NY-
818 PM EDT TUE OCT 11 2005

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN SUFFOLK 
COUNTY HAS BEEN CANCELLED...

WHILE LOCALLY HEAVY RAINS CONTINUE OVER PORTIONS OF EASTERN SUFFOLK 
COUNTY...NO REPORTS OF FLOODING HAVE BEEN RECEIVED AT THE NATIONAL 
WEATHER SERVICE.  LOCAL MINOR FLOODING MAY CONTINUE...ESPECIALLY IN 
FLOOD PRONE AREAS SUCH AS ALONG SOUND AVENUE.

ADDITIONAL HEAVY RAINS ARE POSSIBLE LATER TONIGHT AND ADDITIONAL 
STATEMENTS OR WARNINGS MAY BE NEEDED AT THAT TIME.  IF FLOODING HAS 
BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT 
AGENCY.

LAT...LON 4117 7224 4107 7182 4074 7279 4098 7289

$$

REYNOLDS

Nearby

Flash Flood Warnings in New York, 2005Every flash flood warning in 2005

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.