Alert archive / New York / Flash Flood Warnings in 1990
Flash Flood Warning 9, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 10, 1990, 8:15 PM EDT for Westchester County, New York. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1990, 8:15 PM EDT (00:15 UTC)
- Expired
- Aug 11, 1990, 1:00 AM EDT
- In force
- 5 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 00:00Z, 0.3 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
- NaN m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 144 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 110017
FFWNYC
NYC119-110500-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
815 PM EDT FRI AUG 10 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED AN URBAN AND SMALL STREAM
FLOOD WARNING EFFECTIVE UNTIL 1 AM EDT FOR PEOPLE IN THE
FOLLOWING COUNTY
IN THE STATE OF NEW YORK
WESTCHESTER
HEAVY RAIN MOVING INTO WESTCHESTER COUNTY FROM THE SOUTH WILL AGGRAVATE
EXISTING FLOOD PROBLEMS TONIGHT. 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 CAUGHT IN RIS@ING 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.
RSWhat 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, 2:35 PM EDT, 5 hours 40 minutes before
NJZ001-005-007-015-NYZ014.017-101800 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK CITY NY 230 PM EDT FRI AUG 10 1990 ...DO NOT USE AFTER 4 PM EDT... A FLOOD WARNING REMAINS IN EFFECT FOR WESTCHESTER COUNTY UNTIL 4PM THIS AFTERNOON...A FLOOD WATCH FOR NORTHERN NEW JERSEY AND NEW YORK CITY IS EFFECT THIS EVENING. SHOWERS AND THUNDERSTORMS WERE FROM NORTHERN DELAWARE NORTH THROUGH MOST OF NEW JERSEY...EASTERN PENNSYLVANIA...THE NEW YORK METROPOLITAN AREA... THE WESTERN HALF OF CONNECTICUT...SOUTHEASTEN NEW YORK SATE UP TO COLUMBIA COUNTY. SOME OF THE HEVIEST THUNDERSTORMS WEREOVER SOUTHERN NEW JERSEY IN BURLINGTON COUNTY. OTHER SHOWERS AND THUNDERSTORMS WI>TH HEAVY RAIN WERE OVER ESSEX AND SOMMERSET COUNTIES OF NEW JERSEY. ANOTHER AREA OF SHOWERS AND POSSIBLE THUNDERSTORMS WITH HEAVY RAIN WAS OVER NEW HAVEN AN MIDDELSEX COUNTIES OF CONNECTICUT. MOVEMENT WAS SLOW...15 MILES AN HOUR. KLEIN
Special weather statement, Aug 10, 3:27 PM EDT, 4 hours 48 minutes before
NJZ001-005-007-015-NYZ014.017-101800 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK CITY NY 330 PM EDT FRI AUG 10 1990 ...DO NOT USE AFTER 5 PM EDT... A FLOOD WARNING REMAINS IN EFFECT FOR WESTCHESTER COUNTY UNTIL 4PM THIS AFTERNOON...A FLOOD WATCH FOR NORTHERN NEW JERSEY AND NEW YORK CITY IS EFFECT THIS EVENING. SHOWERS AND THUNDERSTORMS WERE FROM NORTHERN DELAWARE NORTH THROUGH MOST OF NEW JERSEY...EASTERN PENNSYLVANIA...THE NEW YORK METROPOLITAN AREA... THE WESTERN HALF OF CONNECTICUT...SOUTHEASTERN NEW YORK STATE UP TO DUTCHESS COUNTY. SOME OF THE HEAVIEST THUNDERSTORMS WERE OVER CENTRAL NEW JERSEY IN MONMOUTH AND MERCER COUNTY. OTHER SHOWERS AND THUNaDERSTORMS WITH HEAVY RAIN WERE OVER ESSEX COUNTY OF NEW JERSEY. ANOTHER AREA OF SHOWERS AND POSSIBLE THUNDERSTORMS WITH HEAVY RAIN WAS FAIRFIELD...NEW HAVEN AN MIDDELSEX COUNTIES OF CONNECTICUT. MOVEMENT WAS SLOW...15 MILES AN HOUR. KLEIN
Special weather statement, Aug 10, 4:31 PM EDT, 3 hours 44 minutes before
NJZ001-005-007-015-NYZ014.017-101800 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK CITY NY 430 PM EDT FRI AUG 10 1990 ...DO NOT USE AFTER 6 PM EDT... SOME SHOWERS CONTINUED IN SECTIONS OF THE NEW YORK METROPOLITAN AREA... SHOWERS WITH POSSIBLE THUNDERSHOWERS WERE SCATTERED OVER NORTHERN DELAWARE... NORTHERN NEW JERSEY...EASTERN PENNSYLVANIA...SOUTHEASTERN NEW YORK...WESTERN CONNECTICUT...AND WESTERN LONG ISLAND... SHOWERS/THUNDERSHOWERS WERE MOVING NORTHEAST AT 20 MILES AN HOUR... END/PJJ
Special weather statement, Aug 10, 5:36 PM EDT, 2 hours 39 minutes before
NJZ001-005-007-015-NYZ014.017-101800 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK CITY NY 530 PM EDT FRI AUG 10 1990 ...DO NOT USE AFTER 7 PM EDT... SOME SHOWERS CONTINUED IN SECTIONS OF THE NEW YORK METROPOLITAN AREA... SHOWERS WITH POSSIBLE THUNDERSHOWERS WERE SCATTERED OVER NORTHERN DELAWARE... MOST OF NEW JERSEY...EASTERN PENNSYLVANIA...SOUTHEASTERN NEW YORK...WESTERN CONNECTICUT...AND WESTERN LONG ISLAND... SHOWERS/THUNDERSHOWERS WERE MOVING NORTHEAST AT 20 MILES AN HOUR... END/PJJ
Local storm report, Aug 10, 6:35 PM EDT, 1 hour 40 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
630 PM EDT FRI AUG 10 1990
TIME(EDT) LOCATION COUNTY EVENT
410 PM MIDLAND BEACH RICHMOND, NY TORNADO
415 PM NEW DORP RICHMOND, NY TORNADO...TREES/POWER LINES
DOWN.
430 PM GRANT CITY RICHMOND, NY TORNADO...TREES DOWN..GAS
LINES RUPTURED..POWER LINES
DOWN.
END/STALKER..The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 9:10 PM EDT | Flash Flood Warning | OKX | Rockland | 4 hr |
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.