Alert archive / New York / Flash Flood Warnings in 1987
Flash Flood Warning 6, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 5, 1987, 6:00 PM EDT for Westchester County, New York. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 5, 1987, 6:00 PM EDT (22:00 UTC)
- Expired
- Aug 5, 1987, 8:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Westchester County, NY
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 10.0 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNYC 052201 FFWNYC NYC119-060000- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW YORK NY 600 PM EDT WED AUG 5 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 800 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NEW YORK...WESTCHESTER A FLOOD WARNING IS IN EFFECT FOR SMALL STREAMS..CREEKS AND SMALL RIVERS FOR WESTCHESTER COUNTY OF SOUTHEASTERN NEW YORK..THERE WILL ALSO BE CONSIDERABLE URBAN AND HIGHWAY FLOODING.. A SERIES OF VERY HEAVY RAIN SHOWERS CONTINUES TO MOVE ACROSS SECTIONS OF WESTCHESTER COUNTY AND WILL CONTINUE TO DO SO FOR THE NEXT COUPLE OF HOURS... DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS... RS
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 5, 2:46 PM EDT, 3 hours 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEWARK NJ 245 PM EDT WED AUG 5 1987 ...A CLUSTER OF THUNDERSTORMS WITH HEAVY RAIN HAS DEVELOPED TO THE WEST OF THE METRO AREA... A CLUSTER OF THUNDERSTORMS WITH HEAVY RAIN HAS DEVELOPED RAPIDLY TO THE WEST OF THE METRO AREA DURING THE LAST HOUR. THEY WERE MOVING SOUTHEAST AT 15 MILES AN HOUR. THE THUNDERSTORMS SHOULD PASS THROUGH THE METRO AREA DURING THE NEXT HOUR WITH SOUTHERN AND WESTERN SECTIONS MOST LIKELY TO GET THE STORMS. THE THUNDERSTORMS WILL CONTAIN HEAVY DOWNPOURS AND LIGHTNING AND COULD ALSO HAVE STRONG WIND GUSTS. IF YOU SEE ANY THREATENING WEATHER PLEASE TAKE SHELTER. ANY THUNDERSTORM WHETHER IT IS SEVERE OR NOT SHOULD BE TAKEN SERIOUSLY. GIGI
Special weather statement, Aug 5, 5:33 PM EDT, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEWARK NJ 515 PM EDT WED AUG 5 1987 ...HEAVY DOWNPOURS CONTINUE OVER NORTHERN NEW JERSEY... SPOTTER REPORTS FROM NORTHERN NEW JERSEY INDICATED HEAVY DOWNPOURS WERE CONTINUING ACROSS NORTHERN NEW JERSEY. DURING THE PAST TWO HOURS 1.10 INCHES OF RAIN HAS FALLEN OVER LAKE HOPATCONG AND 2.24 INCHES OVER RIVER VALE IN NORTHERN BERGEN COUNTY. HUBCAP HIGH URBAN FLOODING WAS REPORTED ON ROADWAYS IN PASSAIC TOWNSHIP. THERE IS A BAND OF HEAVY SHOWERS WHICH EXTENDS FROM BERGEN COUNTY SOUTHWEST TO HUNTERDON COUNTY. HEAVY DOWNPOURS AND URBAN FLOODING IS LIkKELY OVER SECTIONS OF BERGEN...PASSAIC...ESSEX...SOMERSET AND HUNTERDON COUNTIES DURING THE NEXT FEW HOURS. ALL PERSONS ARE ADVISED TO TRAVEL CAREFULLY OR NOT AT ALL IN FLOOD PRONE AREAS. GIGI
Nearby
Flash Flood Warnings in New York, 1987Every flash flood warning in 1987
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.