Alert archive / New York / Flash Flood Warnings in 1989
Flash Flood Warning 35, NWS New York, NY
NWS New York, NY issued this flash flood warning at Oct 20, 1989, 3:20 PM EDT for Richmond County, New York. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 20, 1989, 3:20 PM EDT (19:20 UTC)
- Expired
- Oct 20, 1989, 6:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Richmond 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
Atlantic City In, NJ (KACY), launched 12:00Z, 7.3 hours before the alert went out and 129 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
- 151 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 170 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 201925 FFWNYC NYC087-119-005-061-085-047-081-059-103-202200- BULLETIN...IMMEDIATE BROADCAST REQUESTED. FLOOD WARNING NATIONAL WEATHER SERVICE NEW YORK NY 320 PM EDT FRI OCT 20 1989 THE NATIONAL WEATHER SERVICE HAS CONTINUED A FLOOD WARNING EFFECTIVE TIL 6 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES IN THE STATE OF NEW YORK ROCKLAND..WESTCHESTER..NASSAU..SUFFOLK..NEW YORK..BRONX.. QUEENS..KINGS..AND RICHMOND THIS INCLUDES THE FIVE COUNTIES OF NEW YORK CITY... ADDITIONAL BANDS OF HEAVY RAIN..POSSIBLY THUNDERSTORMS..WILL CONTINUE ACROSS SECTIONS OF EXTREME SOUTHEASTERN NEW YORK DURING THE NEXT FEW HOURS. WIDESPREAD FLOODING IS LIKELY IN POOR DRAINAGE AREAS..LOWLYING AREAS...ROADWAYS..BASEMENTS..UNDERPASSES..BROOKS AND SMALL STREAMS. ADDITIONAL RAINFALL AMOUNTS OF 1 INCH ARE POSSIBLE AS THESE BANDS OF RAIN MOVE THROUGH THE AREA. MOTORISTS AND OTHER TRAVELERS SHOULD BE CAUTIOUS AND ALERT..AVOID KNOWN FLOODPRONE AREAS..AND SHOULD NOT ATTmEMPT TO DRIVE THROUGH FLOODED UNDERPASSES OR ROADWAYS. 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, Oct 20, 9:36 AM EDT, 5 hours 44 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 930 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 11 AM EDT... RADAR SHOWED LIGHT TO MODERATE SHOWERS SCATTERED ACROSS NEW JERSEY... THE METROPOLITAN AREA...LONG ISLAND...SOUTHEASTERN NEW YORK STATE... EASTERN PENNSYLVANIA...WESTERN THIRD OF CONNECTICUT...AND A SMALL PORTION OF MASSACHUSETTS. THERE ALSO WAS HEAVY SHOWERS AND POSSIBLE THUNDERSHOWRS OVER THE OCEAN SOUTH OF LONG ISLAND AND JUST SOUTH OF NEW HEAVEN. THESE STORMS MIGHT HIT NEW HAVEN AND ISLIP WITHIN THE NEXT 20 MINUTES. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL START UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITH THE LOW OFF THE MARYLAND KCOAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. THE SHOWERS AND THUNDERSHOWERS WERE MOVING NORTH AT 25 MILES AN HOUR GSK
Special weather statement, Oct 20, 10:34 AM EDT, 4 hours 46 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1030 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 12 NOON EDT... AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS AND POSSIBLE THUNDERSHTORMS WAS LOCATED OVER CENTRAL PENNSYLVANIA... ALL OF NEW JERSEY...NORTHERN DELAWARE,,,THE NEW YORK METROLPOITAN AREA... LONG ISLAND...MOST OF CONNECTICUT..SOUTHEASTERN NEW YORK STATE...AND OVER THE OCEAN ABOUT TO ABOUT 150 MILES SOUTH AND EAST OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR BRIDGEPORT AND OVER NEW JERSEYIN THE COUNTIES OF MONTGOMERY AND BURLINGTON. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL STAR}T UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITH THE LOW OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. GSK
Special weather statement, Oct 20, 11:38 AM EDT, 3 hours 42 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1130 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 1 PM EDT... URBAN AND SMALL STREAM FLOOD WATCH IN EFFECT FOR SOUTHEASTERN NEW YORK STATE AND NORTHERN NEW JERSEY..... AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS AND POSSIBLE THUNDERSTORMS WAS LOCATED OVER CENTRAL PENNSYLVANIA... ALL OF NEW JERSEY...NORTHERN DELAWARE,,,THE NEW YORK METROLPOITAN AREA... LONG ISLAND...MOST OF CONNECTICUT..SOUTHEASTERN NEW YORK STATE...THE WESTERN THIRD OF MASSACHUSETTS...AND OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR BRIDGEPORT AND OVER MOST OF EASTERN NEW JERSEY. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL START UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITYH A LOW PRESSURE OFF THE MARYLAND COAST WILL MOVE THROUGH THE ARE LATER TODAY BRINGING MORE RAIN AND HEAVY AT TIMES. THIS WILL RESULT IN URBAN AND SMALL STREAM FLOODING FOR TODAY. THE AREA OF RAIN WAS MOVING NORTH AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 12:24 PM EDT, 2 hours 56 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1230 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 2 PM EDT... URBAN AND SMALL STREAM FLOOD WATCH IN EFFECT FOR SOUTHEASTERN NEW YORK STATE AND NORTHERN NEW JERSEY..... AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS AND POSSIBLE THUNDERSTORMS WAS LOCATED OVER CENTRAL PENNSYLVANIA... ALL OF NEW JERSEY...NORTHERN DELAWARE,,,THE NEW YORK METROLPOITAN AREA... LONG ISLAND...MOST OF CONNECTICUT..SOUTHEASTERN NEW YORK STATE...THE WESTERN THIRD OF MASSACHUSETTS...AND OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR BRIDGEPORT AND OVER MOST OF EASTERN NEW JERSEY. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL START UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITYH A LOW PRESSURE OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY BRINGING MORE RAIN AND HEAVY AT TIMES. THIS WILL RESULT IN URBAN AND SMALL STREAM FLOODING FOR TODAY. THE AREA OF RAIN WAS MOVING NORTH AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 1:29 PM EDT, 1 hour 51 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 130 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 3 PM EDT... URBAN AND SMALL STREAM FLOOD WARNING EFFECT FOR SOUTHEASTERN NEW YORK STATE INCLUDING NEW YORK CITY...WESTCHESTER AND ROCKLAND COUNTIES...NORTHERN NEW JERSEY. AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS WAS LOCATED OVER EASTERN PENNSYLVANIA...THE NORTHERN TWO THIRDS OF NEW JERSEY ...THE NEW YORK METROLPOITAN AREA...LONG ISLAND...MOST OF CONNECTICUT... THE WESTERN HALF OF MASSACHUSETTS...THE LOWER HUDSON VALLEY...AND OUT OVER THE OCEAN OUT OT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR NEW HAVEN. A COLD FRONT ASSOCIATED WITYH A LOW PRESSURE OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY BRINGING MORE RAIN AND HEAVY AT TIMES. THIS WILL RESULT IN URBAN AND SMALL STREAM FLOODING FOR TODAY. THE AREA OF RAIN WAS MOVING NORTH AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 2:30 PM EDT, 50 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 230 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 4 PM EDT... URBAN AND SMALL STREAM FLOOD WARNING EFFECT FOR SOUTHEASTERN NEW YORK STATE INCLUDING NEW YORK CITY...WESTCHESTER AND ROCKLAND COUNTIES...NORTHERN NEW JERSEY. AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS WAS LOCATED OVER THE NORTHERN TWO THIRDS OF NEW JERSEY...THE NEW YORK METROLPOITAN AREA...LONG ISLAND...MOST OF CONNECTICUT...THE WESTERN HALF OF MASSACHUSETTS...THE LOWER HUDSON VALLEY...AND OUT OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER WESTERN CONNECTICUT AN9D OVER CENTRAL LONG ISLAND. THE RAIN WAS MOVING NORTHEAST AT 20 MILES AN HOUR. GSK
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Bronx, New York | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Nassau, Suffolk | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Rockland, Westchester | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Richmond | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Kings, Queens | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Rockland, Westchester | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Bronx, New York | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Kings, Nassau, Queens | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Suffolk | 3 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.