Alert archive / Connecticut / Flash Flood Warnings in 1999

Flash Flood Warning 9, NWS New York, NY

January 3, 1999Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this flash flood warning at Jan 3, 1999, 1:10 PM EST for Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 3, 1999, 1:10 PM EST (18:10 UTC)
Expired
Jan 3, 1999, 4:00 PM EST
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Lower Connecticut River Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.2 hours before the alert went out and 83 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, Brookhaven, NY at 12:00Z on 1999-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 1999-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 386 square meters per square second.1939587897Sfc1 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
506 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
386 m²/s²
0-3 km storm-relative helicity
475 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 031812
FFWNYC
CTC001-007-009-011-NYC087-119-032100-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
110 PM EST SUN JAN 3 1999

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS FOR...
  ROCKLAND COUNTY IN SOUTHEASTERN NEW YORK
  NORTHERN WESTCHESTER COUNTY IN SOUTHEASTERN NEW YORK
  NORTHERN FAIRFIELD COUNTY IN SOUTHWESTERN CONNECTICUT
  NORTHERN NEW HAVEN COUNTY IN SOUTH CENTRAL CONNECTICUT
  MIDDLESEX COUNTY IN SOUTH CENTRAL CONNECTICUT
  NEW LONDON COUNTY IN SOUTHEASTERN CONNECTICUT

* UNTIL 400 PM EST

* AT 108 PM... HEAVY RAINS OF 2 TO 3 INCHES HAVE CAUSED SOME
  STREAMS AND ICED OVER STORM DRAINS TO OVERFLOW.  MANY ROADWAYS
  ARE OR WILL BE CLOSED   DUE TO HIGH WATER THIS AFTERNOON ACROSS
  THE WARNING AREA.

* IF YOU LIVE NEAR A STREAM AND EXPERIENCE RISING WATER LEVELS...
  MOVE TO HIGHER GROUND IMMEDIATELY. DO NOT DRIVE  YOUR AUTOMOBILE
  THROUGH FLOODED ROADWAYS.

  REYNOLDS / WFO OKX

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, Jan 3, 10:35 AM EST, 2 hours 35 minutes before
NYZ067>081-CTZ005>012-NJZ002>006-011-032100-

SPECIAL WEATHER STATEMENT AND MAP DISCUSSION FOR
EXTREME SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY
AND SOUTHERN CONNECTICUT
NATIONAL WEATHER SERVICE NEW YORK NY
1035 AM EST SUN JAN 3 1999

...THE NATIONAL WEATHER SERVICE HAS CONTINUED THE WINTER STORM
WARNING THROUGH EARLY AFTERNOON FOR ORANGE AND PUTNAM COUNTIES OF
NEW YORK...AND ALL OF SOUTHERN CONNECTICUT EXCEPT FOR IMMEDIATE
COASTAL AREAS...

...ALL OTHER WARNINGS AND ADVISORIES HAVE BEEN CANCELLED...

LOW PRESSURE DEVELOPING OVER DELAWARE WILL MOVE ACROSS THE TRI-STATE
REGION THIS AFTERNOON.  ICING CONDITIONS WILL CONTINUE ACROSS THE
WARNING AREA INTO EARLY AFTERNOON UNTIL TEMPERATURES RISE ABOVE
FREEZING.  SOME ADDITIONAL ICE ACCUMULATION IS LIKELY...WITH THE
POSSIBILITY OF TREES AND POWER LINES BEING DOWNED.  TRAVEL WILL
CONTINUE TO BE VERY HAZARDOUS.

CLOSER TO THE COAST...TEMPERATURES HAVE RISEN TO WELL ABOVE THE
FREEZING MARK...ENDING THE ICING THREAT.

OCCASIONALLY HEAVY RAINFALL IS POSSIBLE THROUGH EARLY AFTERNOON.
LOCALIZED STREET FLOODING IS A GOOD POSSIBILITY...ESPECIALLY IN POOR
DRAINAGE AREAS.

ALL OF THE RAIN WILL END LATE IN THE DAY AS THE LOW MOVES INTO NEW
ENGLAND.

REYNOLDS
Special weather statement, Jan 3, 12:30 PM EST, 40 minutes before
NYZ067>081-CTZ005>012-NJZ002>006-011-032100-

SPECIAL WEATHER STATEMENT AND MAP DISCUSSION FOR
EXTREME SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY
AND SOUTHERN CONNECTICUT
NATIONAL WEATHER SERVICE NEW YORK NY
1230 PM EST SUN JAN 3 1999

...STREET FLOODING POSSIBLE ACROSS THE REGION...

...MINOR COASTAL FLOODING ALONG WESTERN LONG ISLAND SOUND...

...ICING AND TREACHEROUS TRAVEL CONDITIONS CONTINUE ACROSS FAR
NORTHERN PARTS OF THE TRI-STATE REGION...

...SYNOPSIS...
LOW PRESSURE DEVELOPING OVER DELAWARE WILL MOVE NORTHEAST ACROSS THE
REGION THIS AFTERNOON.  RAIN WILL END LATE IN THE DAY ONCE THE LOW
PASSES THE REGION.

...STREET FLOODING...
A BAND OF VERY HEAVY RAIN WILL CONTINUE TO MOVE ACROSS LONG ISLAND
AND SOUTHERN CONNECTICUT THROUGH THE EARLY AFTERNOON.  RAINFALL
AMOUNTS OF 1 TO 2 INCHES IN 2 HOURS WITH THIS BAND IS CAUSING STREET
FLOODING IN MANY AREAS.  NASSAU COUNTY LONG ISLAND HAS BEEN HIT THE
HARDEST WITH THE STREET FLOODING.  ANYONE TRAVELING IN OR LIVING
NEAR POOR DRAINAGE AREAS PRONE TO FLOODING SHOULD WATCH FOR STANDING
OR RISING WATER.

FLOOD WARNINGS ARE IN EFFECT UNTIL 400 PM FOR THE NEW YORK METRO
AREA...NORTHEAST NEW JERSEY...MOST OF LONG ISLAND AND EXTREME
SOUTHWESTERN CONNECTICUT.

...COASTAL FLOODING...
A LONG PERIOD OF NORTHEAST WINDS EARLY THIS MORNING CAUSED A RAPID
INCREASE IN WATER LEVELS ACROSS WESTERN LONG ISLAND SOUND THIS
MORNING.  TIDE LEVELS OF AROUND 2 FEET ABOVE NORMAL ARE CAUSING SOME
LOCAL MINOR COASTAL FLOODING...MOSTLY ALONG WESTERN PORTIONS OF
COASTAL CONNECTICUT IN THE AREAS OF EAST HAVEN AND MILFORD.  HIGH
TIDES ARE NOW OCCURRING OR HAVE JUST OCCURRED...SO WATER LEVELS WILL
BEGIN TO RECEDE DURING THE EARLY AFTERNOON.

...WINTER STORM WARNING FOR ICING INLAND...
THE WINTER STORM WARNING FOR ORANGE AND PUTNAM COUNTIES OF NEW
YORK...NORTHERN PORTIONS OF FAIRFIELD...NEW HAVEN...MIDDLESEX AND
NEW LONDON COUNTIES OF CONNECTICUT CONTINUES THROUGH EARLY
AFTERNOON.  TEMPERATURES ARE AT OR JUST ABOVE FREEZING IN MOST AREAS
...BUT ICING WILL CONTINUE FOR A WHILE LONGER SINCE THE GROUND IS
STILL FROZEN IN AREAS.

REYNOLDS / WFO BROOKHAVEN NY

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 11:57 AM ESTFlash Flood WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region4 hr

Nearby

Flash Flood Warnings in Connecticut, 1999Every flash flood warning in 1999

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.