Alert archive / New York / Flash Flood Warnings in 1990

Flash Flood Warning 10, NWS Burlington, VT

February 23, 1990Clinton County, New York

NWS Burlington, VT issued this flash flood warning at Feb 23, 1990, 12:55 PM EST for Clinton County, New York. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Feb 23, 1990, 12:55 PM EST (17:55 UTC)
Expired
Feb 23, 1990, 5:00 PM EST
In force
4 hr
Issued by
NWS Burlington, VT
Area
Whole counties

County Clinton 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, 5.9 hours before the alert went out and 229 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 1990-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 1990-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -147 square meters per square second.1939587897117136Sfc1 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
10 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
-147 m²/s²
0-3 km storm-relative helicity
-70 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 231757
FFWALB
NYC019-031-232200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
1255 PM EST FRI FEB 23 1990

THE NATIONAL WEATHER SERVICE IN ALBANY NY HAS EXTENDED THE
FLOOD WARNING FOR THE AUSABLE RIVER UNTIL 5PM EST FOR THE FOLLOWING
COUNTIES IN NORTHERN NEW YORK...

IN NORTHERN NEW YORK
       SOUTHERN CLINTON
       NORTHERN ESSEX

AT 1245...ICE FROM UP RIVER WAS MOVING ALONG THE EAST BRANCH FROM
STICKNEY TO THE VILLAGE OF AUSABLE FORKS.   THERE WAS AN ICE JAM IN
THE AUSABLE RIVER JUST BELOW THE JUNCTION OF THE EAST AND WEST
BRANCHES.  AT THE GAGE THE WATER CAME UP OVER A FOOT IN THE PAST
30 MINUTES.   LOCAL OFFICIALS ARE AT THE SCENE AND A NUMBER OF
FAMILIES WERE EVACUATED.

AS THE WATER CONTINUES TO RISE BEHIND THE JAM...THE FLOODING IS
LIKELY TO WORSEN THE NEXT HOUR OR TWO.  IF YOU/RE IN THIS AREA...
FOLLOW THE DIRECTIONS OF YOUR LOCAL OFFICIAL.

THERE/S A GOOD POSSIBILITY THAT THE JAM BELOW THE JUNCTION OF THE
TWO BRANCHES MAY BE STARTING TO BREAK UP WITH THE INCREASED WATER
LEVELS.   THIS WOULD SEND A SURGE OF WATER AND ICE DOWN RIVER TO
KEESVILLE AND AUSABLE CHASM.  IF YOU/RE ALONG THAT PART  OF THE
RIVER...BE PREPARED FOR A SUDDEN INCREASE IN THE WATER LEVEL.
THE WATER AND ICE COULD CAUSE FLOODING TO TAKE PLACE QUICKLY AND IT
COULD DAMAGE BRIDGES AND OTHER PROPERTY ALONGSIDE THE RIVER.

AS OF EARLY THIS AFTERNOON...ROUTE 9N WAS STILL CLOSED FROM ROUTE
86 TO THE CLINTON COUNTY LINE...WITH 2 TO 3 FT OF WATER ON SOME
SECTIONS OF IT.

THE FLOODWATERS SHOULD BEGIN TO RECEDE LATER THIS AFTERNOON.

KILPATRICK

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, Feb 23, 11:15 AM EST, 1 hour 40 minutes before
VTZALL-NYZ011-232100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
1115 AM EST FRI FEB 23 1990

A WINTER STORM WATCH IS CONTINUED FOR ALL OF VERMONT AND CLINTON COUNTY
NEW YORK FOR TONIGHT AND SATURDAY.

AFTER THE MILD WEATHER OF THE PAST FEW DAYS...WINTER CONDITIONS HAVE
RETURNED TO VERMONT. THIS AFTERNOON WE CAN EXPECT SOME LIGHT SNOW...
WITH MORE SIGNIFICANT SNOW POSSIBLE TONIGHT.

A STORM SYSTEM IS EXPECTED TO DEVELOP OFF NEW JERSEY TONIGHT AND
STRENGTHEN AS IS IT MOVES NORTHEAST. COLD AIR WILL SPILL INTO NEW
ENGLAND RESULTING IN SNOW TONIGHT AND SATURDAY. AT THE PRESENT TIME...
THIS STORM HAS THE PONTENTIAL FOR 6 INCHES OR MORE OVERNIGHT AND
SATURDAY. SNOW AMOUNTS WILL DEPEND ON THE EXACT TRACK OF THE STORM.

IF YOU PLAN TO TRAVEL TONIGHT OR SATURDAY...LISTEN TO NOAA WEATHER RADIO
...LOCAL RADIO OR TV STATIONS FOR THE LATEST NATIONAL WEATHER SERVICE

FORECASTS OR WARNINGS.

THE NEXT STATEMENT WIL BE ISSURED BY 4 PM.

HOGAN

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 23, 6:44 AM ESTFlash Flood WarningBTVClinton3 hr
Feb 23, 9:49 AM ESTFlash Flood WarningBTVClinton116 min

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.