Alert archive / New Jersey / Flash Flood Warnings in 1999

Flash Flood Warning 68, NWS New York, NY

September 17, 1999Hudson County, New Jersey

NWS New York, NY issued this flash flood warning at Sep 17, 1999, 1:38 AM EDT for Hudson County, New Jersey. It was in force for 6 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
Sep 17, 1999, 1:38 AM EDT (05:38 UTC)
Expired
Sep 17, 1999, 8:00 AM EDT
In force
6 hr
Issued by
NWS New York, NY
Area
Whole counties

County Hudson County, NJ

The radar

The Philadelphia radar (KDIX), 92 km from the middle of the area, began a volume at 05:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 5.6 hours before the alert went out and 103 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 00:00Z on 1999-09-17Temperature 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, Brookhaven, NY at 00:00Z on 1999-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
385 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS New York, NY wrote its last area forecast discussion before this flash flood warning went out at Sep 16, 10:15 PM EDT, 3 hours 23 minutes earlier.

Area forecast discussion, Sep 16, 10:15 PM EDT, 3 hours 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
1015 PM EDT THU SEP 16 1999

DOPPLER FIXES SHOWED FLOYD MOVG ACRS LNG ISL SD TWD NEW HAVEN CTY.
STDY RAINFALL HAD ENDED OVR MOST OF THE FCST AREA. IN OVRNGT UPDTS
WL KP OCNL LGT RAIN IN THE ZNS TIL ARND MIDN THEN KP SKIES MSTLY
CLDY.

SFC WNDS WERE SHFTG FM SE TO N IN RESPONSE TO FLOYDS MVMNT AND WL
SHFT INTO THE NW AFT MIDN AS THE STORM CONTS INTO NEW ENG. GRAD WL
RMN TIGHT ARND THE BCKSIDE OF THE STRM WELL INTO FRI. TROP STRM
WRNGS WL RMN UP OVRNGT...AS WL WND ADVSRIES WELL INLD N AND W OF
NYC.

FLD WRNGS...MAINLY FOR SML STRMS..WL RMN UP OVR MUCH OF THE FCST
AREA TNGT. SEE BELOW.

.NYC/OKX...TS WRNG NYZ069>081-NJZ003>006-011-
                   CTZ005>012-
                   ANZ355-353-350-335-330-338.
           WIND ADVISORY...NYZ067-068-NJZ002.
           FLOOD WARNING...NYC067>071-NJZ002>006-011-CTZ005-006-
                   009-010.

EY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 1:38 AM EDTFlash Flood WarningOKXOrange, Putnam, Rockland, Westchester6 hr
Sep 17, 7:49 AM EDTFlash Flood WarningOKXRockland, Westchester7 hr
Sep 17, 7:49 AM EDTFlash Flood WarningOKXOrange, Putnam7 hr
Sep 17, 3:52 PM EDTFlash Flood WarningOKXRockland, Westchester5 hr
Sep 17, 1:38 AM EDTFlash Flood WarningOKXEssex, Union6 hr
Sep 17, 1:38 AM EDTFlash Flood WarningOKXPassaic6 hr
Sep 17, 7:49 AM EDTFlash Flood WarningOKXUnion7 hr
Sep 17, 3:52 PM EDTFlash Flood WarningOKXEssex, Passaic5 hr
Sep 17, 3:52 PM EDTFlash Flood WarningOKXHudson5 hr
Sep 17, 1:38 AM EDTFlash Flood WarningOKXNaugatuck Valley Planning Region6 hr
Sep 17, 7:49 AM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region7 hr
Sep 17, 3:52 PM EDTFlash Flood WarningOKXNaugatuck Valley Planning Region5 hr

Nearby

Flash 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; radar from the NEXRAD Level II archive.