Alert archive / New York / Flash Flood Warnings in 1987

Flash Flood Warning 1, NWS Albany, NY

April 13, 1987Greene County, New York

NWS Albany, NY issued this flash flood warning at Apr 13, 1987, 8:00 AM EDT for Greene County, New York. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 13, 1987, 8:00 AM EDT (12:00 UTC)
Expired
Apr 13, 1987, 12:00 PM EDT
In force
4 hr
Issued by
NWS Albany, NY
Area
Whole counties

County Greene 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, 0.0 hours before the alert went out and 52 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 1987-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1987-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
140 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 KALB 131213 COR
FFWALB
NYC039-131600-

BULLETIN--EBS ACTIVATION REQUESTED-CORRECTION-
FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
808 AM EDT MON APR 13 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING FOR SMALL
STREAMS EFFECTIVE UNTIL 1200 PM NOON EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF

NEW YORK...GREENE

BY 7 AM THIS MORNING HEAVY RAINFALL HAD BEEN REPORTED BY MANY
AREAS IN GREENE COUNTY.  THIS RAINFALL WILL CONTINUE AT LEAST THROUGH
LATE MORNING...CAUSING SMALL STREAMS TO OVERFLOW THEIR BANKS.

CARIO IN GREENE COUNTY HAD REPORTED SEVERAL SMALL STREAMS ALREADY
FLOODING IN THAT AREA AT 730 AM.  OTHER STREAMS ARE BANKFULL...AND
RECENT HEAVY RAIN WILL CAUSE THE RIVERS TO CONTINUE RISING.
.
IF YOU LIVE IN THIS AREA MAKE SURE THAT YOU HAVE A QUICK WAY TO
HIGH GROUND THAT WON/T BE CUTOFF BY RAPIDLY RISING WATERS.

DON/T DRIVE OVER FLOODED ROADS AND BRIDGES.  WATER ON ROADS MAY
HIDE DANGEROUS WASHOUTS.  ALSO..DON/T TRY TO WADE ACROSS STREAMS
OR RIVERS WHERE THE WATER IS HIGH.  YOU COULD EASILY BE WASHED AWAY.

IF YOUR VEHICLE STALLS IN A FLOODED AREA..ABANDON IT IMMEDIATELY AND
GO TO HIGH GROUND.  RAPIDLY RISING WATER COULD SWEEP IT AWAY.

REPORTS OF FLASH FLOODING SHOULD BE GIVEN TO YOUR NEAREST LAW
ENFORECMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE IN
ALBANY.

BACH

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, Apr 13, 5:28 AM EDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
530 AM EDT MON APR 13 1987

HEAVY RAIN FELL OVER SOUTHEASTERN NEW YORK DURING THE NIGHT. THIS
INCLUDED PORTIONS OF THE MOHAWK VALLEY...THE UPPER HUDSON VALLEY...
THE CATSKILLS...AND THE SUSQUEHANNA REGION OF NEW YORK.

SINCE 7PM LAST NIGHT 1.4 INCHES OF RAIN FELL AT TANNERSVILLE AND
1.20 INCHES AT CLARYVILLE. BINGHAMTON PICKED UP ALMOST 0.80 INCH.
ROME AND UTICA EACH RECEIVED AMOUNTS IN EXCESS OF 0.60 INCH.

STREAMS IN THESE AREAS ARE STARTING TO RISE BUT AT 5AM WERE STILL
WELL WITHIN THEIR BANKS.

THE IMMEDIATE CONCERN WILL BE FOR LOCALIZED FLOODING IN AREAS WITH
POOR DRAINAGE AND FOR SMALL STREAMS WHICH HAVE A HISTORY OF RISING
RAPIDLY AFTER A FEW HOURS OF HEAVY RAIN. IF YOU LIVE IN SUCH AN
AREA BE ALERT. BE PREPARED TO MOVE TO A SAFE PLACE QUICKLY.
<
THE RAIN WILL TAPER OFF TO SCATTERED SHOWERS DURING THE MORNING BUT
YOU CAN EXPECT MODERATE RISES ON THE LARGER STREAMS AND RIVERS LATER
TODAY.

GERWITZ

Nearby

Flash Flood Warnings in New York, 1987Every flash flood warning in 1987

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.