Alert archive / New Jersey / Flash Flood Warnings in 1990

Flash Flood Warning 2, NWS New York, NY

May 16, 19904 counties in New Jersey

NWS New York, NY issued this flash flood warning at May 16, 1990, 10:00 PM EDT for 4 counties in New Jersey. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 16, 1990, 10:00 PM EDT (02:00 UTC)
Expired
May 17, 1990, 1:00 AM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Hunterdon County, NJ, Morris County, NJ, Sussex County, NJ, Warren County, NJ

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

Atlantic City In, NJ (KACY), launched 00:00Z, 2.0 hours before the alert went out and 158 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, Atlantic City In, NJ at 00:00Z on 1990-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 277 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 00:00Z on 1990-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.19395878Sfc1 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
277 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
996 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
301 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 10:00 PM EDTFlash Flood WarningOKXBergen, Essex, Hudson, Passaic3 hr
May 16, 10:00 PM EDTFlash Flood WarningOKXMiddlesex, Somerset, Union3 hr
May 16, 11:00 PM EDTFlash Flood WarningOKXMonmouth2 hr

Nearby

Flash Flood Warnings in New Jersey, 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.