Alert archive / New York / Flash Flood Warnings in 1999

Flash Flood Warning 2, NWS New York, NY

January 3, 1999Bergen County, New Jersey; Bronx County, New York County, Westchester County, New York

NWS New York, NY issued this flash flood warning at Jan 3, 1999, 11:57 AM EST for Bergen County, New Jersey; Bronx County, New York County, Westchester County, New York. It was in force for 4 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, 11:57 AM EST (16:57 UTC)
Expired
Jan 3, 1999, 4:00 PM EST
In force
4 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Bergen County, NJ, Bronx County, NY, New York County, NY, Westchester County, NY

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.0 hours before the alert went out and 90 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 031659
FFWNYC
CTC001-009-NJC003-013-017-031-039-NYC005-047-059-061-081-085-
103-119-032100-

BULLETIN - EAS ACTIVIATION/IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1157 AM EST SUN JAN 3 1999

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS FOR...
  SOUTHERN WESTCHESTER COUNTY IN SOUTHEASTERN NEW YORK
  NEW YORK COUNTY IN SOUTHEASTERN NEW YORK
  BRONX COUNTY IN SOUTHEASTERN NEW YORK
  RICHMOND COUNTY IN SOUTHEASTERN NEW YORK
  KINGS COUNTY IN SOUTHEASTERN NEW YORK
  QUEENS COUNTY IN SOUTHEASTERN NEW YORK
  NASSAU COUNTY IN SOUTHEASTERN NEW YORK
  WESTERN SUFFOLK COUNTY IN SOUTHEASTERN NEW YORK
  BERGEN COUNTY IN NORTHEASTERN NEW JERSEY
  ESSEX COUNTY IN NORTHEASTERN NEW JERSEY
  HUDSON COUNTY IN NORTHEASTERN NEW JERSEY
  PASSAIC COUNTY IN NORTHEASTERN NEW JERSEY
  UNION COUNTY IN NORTHEASTERN NEW JERSEY
  SOUTHERN FAIRFIELD COUNTY IN SOUTHWESTERN CONNECTICUT
  SOUTHERN NEW HAVEN COUNTY IN SOUTH CENTRAL CONNECTICUT

* UNTIL 400 PM EST

* AT 1150 AM...  DOPPLER RADAR AND SPOTTER REPORTS INDICATE
  AN AREA OF HEAVY RAIN ACROSS MUCH OF THE METRO AREA...WESTERN
  LONG ISLAND AND SOUTHERN CONNECTICUT. THIS IS PRODUCING
  WIDESPREAD ROADWAY FLOODING AND SIGNIFICANT PONDING OF WATER IN
  POOR DRAINAGE AND LOW-LYING AREAS.

* DO NOT DRIVE YOUR AUTOMOBILE THROUGH FLOODED ROADWAYS OR
  UNDERPASSES. NEVER DRIVE THROUGH WATER OF UNKNOWN DEPTH. YOU
  ENDANGER THE LIVES OF ALL OCCUPANTS IN YOUR VEHICLE. FIND AN
  ALTERNATE ROUTE.

  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, 1 hour 22 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

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 11:57 AM ESTFlash Flood WarningOKXEssex, Hudson4 hr
Jan 3, 11:57 AM ESTFlash Flood WarningOKXPassaic4 hr
Jan 3, 11:57 AM ESTFlash Flood WarningOKXUnion4 hr
Jan 3, 11:57 AM ESTFlash Flood WarningOKXKings, Nassau, Queens4 hr
Jan 3, 11:57 AM ESTFlash Flood WarningOKXSuffolk4 hr
Jan 3, 11:57 AM ESTFlash Flood WarningOKXRichmond4 hr
Jan 3, 1:10 PM ESTFlash Flood WarningOKXRockland3 hr

Nearby

Flash Flood Warnings in New York, 1999Flash Flood Warnings in New Jersey, 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.