Alert archive / New York / Flash Flood Warnings in 1994

Flash Flood Warning 3, NWS New York, NY

July 8, 1994Rockland County, New York

NWS New York, NY issued this flash flood warning at Jul 8, 1994, 3:45 PM EDT for Rockland County, New York. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 8, 1994, 3:45 PM EDT (19:45 UTC)
Expired
Jul 8, 1994, 6:45 PM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

County Rockland County, NY

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 7.8 hours before the alert went out and 172 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 1994-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 119 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 1994-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
119 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
754 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNYC 081947
FFWNYC
NYC087-082245-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
345 PM EDT FRI JUL 8 1994
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NEW YORK
 
   ...SOUTHERN ROCKLAND COUNTY
 
SEVERE THUNDERSTORMS HAVE DUMPED HEAVY RAIN OVER SOUTHERN PORTIONS OF
ROCKLAND COUNTY CAUSING SEVERE FLOODING.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 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 QUICKLY.  MOVE TO HIGHER GROUND.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

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, Jul 8, 12:46 PM EDT, 2 hours 59 minutes before
NYZ067>81-NJZ001>014-081800-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
1245 PM EDT FRI JUL 8 1994

NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED SEVERAL RAPIDLY
DEVELOPING THUNDERSTORMS OVER WARREN AND SUSSEX COUNTIES OF NEW
JERSEY...AND OVER ORANGE COUNTY NEW YORK...AS WELL AS SULLIVAN COUNTY
NEW YORK AND EXTREME NORTHEASTERN PENNSYLVANIA...PARTICULARLY PIKE
COUNTY.

THE STRONGEST CELLS WERE LOCATED OVER SOUTH CENTRAL ORANGE COUNTY NEAR
WARWICK...AND OVER SOUTHERN WARREN COUNTY NEAR PHILIPSBURG.

THE THUNDERSTORMS WERE ACCOMPANIED BY VERY HEAVY DOWNPOURS...FREQUENT
LIGHTNING...AND POSSIBLY SOME HAIL.

THEY WERE MOVING TOWARD THE EAST NORTHEAST AT 30 TO 35 MILES AN HOUR...
AND WILL BE MOVING ACROSS ORANGE...SUSSEX...AND WARREN COUNTIES DURING
THE NEXT HOUR.

EY
Special weather statement, Jul 8, 2:28 PM EDT, 1 hour 17 minutes before
CTZ005-010-081915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
225 PM EDT FRI JUL 8 1994

...SEVERE THUNDERSTORM WATCH FOR CONNECTICUT UNTIL 800 PM...

AT 220 PM...RADAR INDICATED A FEW STRONG THUNDERSTORMS JUST WEST OF
FAIRFIELD COUNTY.  THE THUNDERSTORMS WERE MOVING EAST AND WILL AFFECT
PORTIONS OF FAIRFIELD COUNTY INCLUDING THE GREENWICH...STAMFORD...AND
DANBURY AREAS BETWEEN 230 AND 300 PM.

STRONG GUSTY WINDS...SMALL HAIL...AND DANGEROUS LIGHTNING MAY BE
ASSOCIATED THE THE THUNDERSTORMS.

STAY TUNDED TO NOAA WEATHER RADIO...OR YOUR LOCAL RADIO OR TELEVISION
STATION FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS ON THESE
THUNDERSTORMS.

BINGHAM
Special weather statement, Jul 8, 3:15 PM EDT, 30 minutes before
CTZ005-010-081945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
315 PM EDT FRI JUL 8 1994

...SEVERE THUNDERSTORM WATCH FOR CONNECTICUT UNTIL 800 PM...

THE SEVERE THUNDERSTORM WARNING FOR SOUTHWEST FAIRFIELD COUNTY
HAS BEEN CANCELLED.  THUNDERSTORMS IN THE GREENWICH AND STAMFORD
AREAS HAVE DECREASED CONSIDERABLY IN INTENSITY AND ARE NO LONGER
A SEVERE THREAT.

BINGHAM
Special weather statement, Jul 8, 3:18 PM EDT, 27 minutes before
CTZ005-010-081945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
315 PM EDT FRI JUL 8 1994

...SEVERE THUNDERSTORM WATCH FOR CONNECTICUT UNTIL 800 PM...

THE SEVERE THUNDERSTORM WARNI2NG FOR SOUTHWEST FAIRFIELD COUNTY
HAS BEEN CANCELLED.  THUNDERSTORMS IN THE GREENWICH AND STAMFORD
AREAS HAVE DECREASED CONSIDERABLY IN INTENSITY AND ARE NO LONGER
A SEVERE THREAT.

BINGHAM

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 1:11 PM EDTSevere Thunderstorm WarningOKXOrange64 min
Jul 8, 1:41 PM EDTSevere Thunderstorm WarningOKXPutnam64 min
Jul 8, 2:16 PM EDTSevere Thunderstorm WarningOKXOrange29 min
Jul 8, 2:32 PM EDTSevere Thunderstorm WarningOKXWestchester58 min
Jul 8, 3:06 PM EDTSevere Thunderstorm WarningOKXPutnam39 min
Jul 8, 3:28 PM EDTFlash Flood WarningOKXBronx, Westchester62 min
Jul 8, 3:28 PM EDTSevere Thunderstorm WarningOKXBronx, Westchester62 min
Jul 8, 4:08 PM EDTFlash Flood WarningOKXNassau67 min
Jul 8, 4:08 PM EDTSevere Thunderstorm WarningOKXNassau67 min

Nearby

Flash Flood Warnings in New York, 1994Every flash flood warning in 1994

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.