Alert archive / New York / Flash Flood Warnings in 1989
Flash Flood Warning 1, NWS New York, NY
NWS New York, NY issued this flash flood warning at May 16, 1989, 12:44 PM EDT for Rockland County, Westchester County, New York. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 16, 1989, 12:44 PM EDT (16:44 UTC)
- Expired
- May 16, 1989, 4:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Rockland County, NY, 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, 4.7 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
- 1341 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 28 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 161651
FFWNYC
NYC087-119-162000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1244 PM EDT TUE MAY 16 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING
EFFECTIVE UNTIL 400 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE STATE OF NEW YORK
ROCKLAND...WESTCHESTER
FROM 1.25 TO 1.80 INCHES OF RAIN HAS FALLEN OVER THESE COUNTIES.
MANY SMALL STREAMS AND CREEKS WILL OVERFLOW THIS AFTERNOON.
MINOR FLOODING WILL ALSO OCCUR ALONG THE SAW MILL RIVER...BRONX
RIVER AND HUTCHINSON RIVER. WESTCHESTER COUNTY POLICE REPORTED
MINOR FLOODING IN LOW LYING AREAS OF THE PARKWAYS ALONG THESE RIVERS.
THE RAIN SHOULD TAPER OFF SHORTLY OVER ROCKLAND AND WESTCHESTER
COUNTIES. RIVERS AND STREAMS ARE EXPECTED TO BEGIN RECEDING IN
MOST AREAS BY MID AFTERNOON. THE SAW MILL AND BRONX RIVERS SHOULD
BE WITHIN THEIR BANKS BY LATE AFTERNOON OR THIS EVENING.
DO NOT DRIVE YOUR VE+HICLE 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.
SDTWhat 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, May 16, 10:46 AM EDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEWARK NJ 1045 AM EDT TUE MAY 16 1989 ...FLOOD WATCH IN EFFECT TODAY FOR SMALL STREAMS IN NORTHERN NEW JERSEY... LOW PRESSURE SYSTEM OVER DELMARVA IS MOVING SLOWLY NORTHWARD ALONG THE COAST. RAIN BEGAN FALLING AT NEWARK THIS MORNING AT 415 AM AND AS OF 1000 AM HAS DEPOSITED ONE AND A QUARTER INCHES. MANY LOCATIONS THROUGHOUT THE NORTHERN SECTIONS OF NEW JERSEY HAVE RECEIVED BETWEEN ONE AND ONE AND A HALF INCHES OF RAIN MAINLY IN LOCAL DOWNPOURS ASSOCIATED WITH EMBEDDED THUNDERSTORMS. COOPERATIVE LOCAL OBSERVERS HAVE REPORTED HOURLY RAINFALL AMOUNTS OF ONE HALF TO THREE QUARTERS OF AN INCH. THEY ALSO REPORT THAT MANY OF THE SMALL STREAMS AND CREEKS ARE EXTREMELY CLOSE TO BANKFULL. RADAR INDICATES ANOTHER BAND OF MODERATE TO HEAVY RAIN MOVING ACROSS THE STATE. THERE ARE SOME THUNDERSTORMS LOCATED WITHIN THIS AREA. WITH THE SOIL SATURATED AND A HIGH PROBABILITY OF ADDITIONAL RAINFALL ACROSS THE NORTHERN PART OF THE STATE..MANY AREAS IN THE VICINITY OF SMALL STREAMS AND CREEKS COULD EXPERIENCE PROBLEMS BEFORE DAYS END. THERE IS WIDESPREAD FLOODING OF STREETS AND LOW LYING AREAS -WITH ENTRANCES TO MANY ROADWAYS BLOCKED. MAJOR ARTERIES THROUGHOUT THE STATE REPORT EXTENSIVE DELAYS. MOTORISTS SHOULD EXERCISE EXTREME CAUTION AND ALLOW EXTRA TIME FOR ANY TRAVEL. PERSONS IN FLOOD PRONE AREAS SHOULD BE ON THE ALERT FOR RAPIDLY RISING WATERS AND AVOID ALL FLOODED LOW LYING AREAS. THEY SHOULD ALSO BE PREPARED TO TAKE QUICK ACTION IF A WARNING IS ISSUED OR FLOODING IS OBSERVED. STAY TUNED TO NOAA WEATHER RADIO AND COMMERCIAL RADIO AND TELEVISION FOR THE LATEST WEATHER INFORMATION...AS WELL AS POSSIBLE WARNINGS. REMEMBER TO FOLLOW ANY INSTRUCTIONS OF EMERGENCY MANAGEMENT PERSONNEL. THE NEXT STATEMENT WILL BE ISSUED AT 1 PM EDT. HGW/GH
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 1:45 PM EDT | Flash Flood Warning | OKX | Suffolk | 2 hr |
Nearby
Flash Flood Warnings in New York, 1989Every flash flood warning in 1989
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.