Alert archive / New York / Flash Flood Warnings in 1990
Flash Flood Warning 8, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 10, 1990, 12:00 PM EDT for Westchester County, New York. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1990, 12:00 PM EDT (16:00 UTC)
- Expired
- Aug 10, 1990, 4:00 PM EDT
- In force
- 4 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, 4.0 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
- 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 101558
FFWNYC
NYC119-102000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
12 NOON EDT FRI AUG 10 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED AN URBAN AND SMALL STREAM
FLOOD WARNING EFFECTIVE UNTIL 4 PM EDT FOR PEOPLE IN THE
FOLLOWING COUNTY
IN THE STATE OF NEW YORK
WESTCHESTER
RAIN MOVING INTO WESTCHESTER COUNTY FROM NEW JERSEY WILL AGGRAVATE
EXISTING FLOOD PROBLEMS THROUGH EARLY AFTERNOON. SOME ROADS WILL BE
MADE IMPASSABLE BECAUSE OF HIGH WATER.
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 C|AUGHT 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.
JRPWhat 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, 10:00 AM EDT, 2 hours before
NJZ001-005-007-015-NYZ014>017-101900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1000 AM EDT FRI AUG 10 1990 ...HEAVY RAIN IS AGAIN MOVING INTO NORTHERN NEW JERSEY AND SOUTHEASTERN NEW YORK... A TROUGH OF LOW PRESSURE WAS FOUND ON THE WEATHER MAP THIS MORNING RIGHT ALONG THE EAST COAST...THROUGH EASTERN NEW JERSEY AND NEAR NEW YORK CITY. RAIN THAT FORMED OVERNIGHT WAS MAINLY LIGHT...BUT THERE WERE SPOTTY HEAVY AMOUNTS. OVER 2 INCHES OF RAIN FELL IN CENTRAL WESTCHESTER COUNTY NEW YORK OVERNIGHT. RADAR SHOWED AREAS OF HEAVY RAIN AND THUNDERSTORMS IN SOUTHERN NEW JERSEY MOVING SLOWLY NORTHWARD INTO CENTRAL PORTIONS OF NEW JERSEY. AREA RESIDENTS SHOULD BE ALERT TO THE POSSIBILITY OF URBAN ROAD AND POOR DRAINAGE FLOODING LATE THIS MORNING AND THIS AFTERNOON. MOTORISTS SHOULD USE COMMON SENSE AND NOT DRIVE THROUGH FLOODED AREAS. PUDDLES ARE SOMETIMES MUCH DEEPER THAN THEY APPEAR. THOSE PEOPLE LIVING NEAR STREAMS SHOULD OF COURSE WATCH FOR RISING WATER AND BE READY TO MOVE TO HIGHER GROUND IF NECESSARY. AREA RESIDENTS ARE URGED TO LISTEN TO NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TV FOR FURTHER UPDATES AS WELL AS POSSIBLE WARNINGS. EASTERN LONG ISLAND WILL BE FURTHER AWAY FROM THIS HEAVY RAIN ACTIVITY AND MAY ONLY HAVE SCATTERED SHOWERS THIS AFTERNOON. IT IS HOPED THAT THE WEAK FRONT OVER THE AREA WILL DRIFT EASTWARD SATURDAY AND LESSEN RAIN CHANCES...BUT THERE WILL STILL BE A CHANCE OF RAIN.9 THE NEXT STATEMENT CONCERNING THIS SITUATION WILL BE ISSUED BY 1 PM OR SOONER IF CONDITIONS WARRANT. JRP
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:55 AM EDT | Flash Flood Warning | OKX | Westchester | 3 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.