Alert archive / New York / Flash Flood Warnings in 1990
Flash Flood Warning 6, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 10, 1990, 8:55 AM EDT for Westchester County, New York. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1990, 8:55 AM EDT (12:55 UTC)
- Expired
- Aug 10, 1990, 12:00 PM EDT
- In force
- 3 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, 0.9 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
- 5 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 137 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 101256
FFWNYC
NYC119-101600-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
855 AM EDT FRI AUG 10 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED AN URBAN AND SMALL STREAM
FLOOD WARNING EFFECTIVE UNTIL 12 NOON EDT FOR PEOPLE IN THE
FOLLOWING COUNTY
IN THE STATE OF NEW YORK
WESTCHESTER
LOCALIZED EARLY MORNING RAINS OF OVER 2 INCHES IN WESTCHESTER COUNTY
HAVE ADDED TO THE RAIN OF PREVIOUS DAYS AND CAUSED FURTHER FLOOD
PROBLEMS. NOTABLY...THE SAW MILL RIVER PARKWAY WAS CLOSED AT A COUPLE
OF LOCATIONS DUE TO HIGH WATER FROM THE SAW MILL RIVER. ALSO THE BRONX
RIVER PARKWAY NEAR WHITE PLAINS WAS CLOSED.
RADAR SHOWS MORE RAIN HEADING TOWARD WESTCHESTER COUNTY AND THIS COULD
CAUSE FURTHER FLOOD PROBLEMS ON ROADS AND SMALL STREAMS AND CREEKS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED IMMEDIATELY.
MOVE TO HIGHER GROUND.
PERSONS LIVING NEAR STREAMS AND CREEKS SHOULD WATCH FOR RISING WATER AND
BE PREPARED TO MOVE TO HIGHER GROUND IMMEDIATELY.
POIRIERWhat 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 10, 5:13 AM EDT, 3 hours 42 minutes before
NJZ015-NYZ014-015-101200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 500 AM EDT FRI AUG 10 1990 ...HEAVY DOWNPOURS IN AND AROUND THE NEW YORK CITY METRO AREA... TROPICAL-LIKE SHOWERS ACCOMPANIED BY HEAVY DOWNPOURS DUMPED OVER ONE INCH OF RAIN...1.25 INCHES...BETWEEN 4 AM AND 5 AM IN CENTRAL PARK. THE HEAVY RAINS HAVE OCCURRED THROUGHOUT NEW YORK CITY AS WELL AS OVER HUDSON AND BERGEN COUNTIES IN NEW JERSEY AND ARE MOVING NORT)H THROUGH ROCKLAND AND WESTCHESTER. THERE IS WIDESPREAD POOR DRAINAGE FLOODING. THE MORNING COMMUTE WILL BE A DIFFICULT ONE FOR MANY...SO LEAVE EXTRA TIME GETTING TO WORK TODAY. EY
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 12:00 PM EDT | Flash Flood Warning | OKX | Westchester | 4 hr |
| Aug 10, 3:45 PM EDT | Tornado Warning | OKX | Richmond | 45 min |
| Aug 10, 5:00 PM EDT | Tornado Warning | OKX | Richmond | 45 min |
| Aug 10, 5:45 PM EDT | Tornado Warning | OKX | Richmond | 30 min |
Nearby
Flash Flood Warnings in New York, 1990Every flash flood warning in 1990
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.