Alert archive / New Jersey / Flash Flood Warnings in 1991

Flash Flood Warning 9, NWS New York, NY

July 23, 1991Bergen County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 23, 1991, 4:25 PM EDT for Bergen County, New Jersey. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 23, 1991, 4:25 PM EDT (20:25 UTC)
Expired
Jul 23, 1991, 9:00 PM EDT
In force
5 hr
Issued by
NWS New York, NY
Area
Whole counties

County Bergen County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 8.4 hours before the alert went out and 172 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 12:00Z on 1991-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 835 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, Atlantic City In, NJ at 12:00Z on 1991-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939Sfc1 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
835 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
1396 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
83 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.

In the hours before

Special weather statement, Jul 23, 12:37 PM EDT, 3 hours 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWARK NJ
1235 PM EDT TUE JUL 23 1991

...HUMIDITY RETURNS..LOWER HUMIDITY HEAT RELIEF WEDNESDAY...

THE WEAK FRONT THAT BROUGHT SOME TEMPORARY RELIEF FROM THE HEAT
SUNDAY AFTERNOON AND EVENING MADE ITS NORTHWARD TREK AS A WARM FRONT
LAST NIGHT. THIS SHOULD BRING ABOUT A RETURN TO TEMPERATURES IN THE
90S AND AN INCRREASE IN HUMIDITY. AS A WEAK COLD FRONT APPROACHES US
FROM THE NORTH AND WEST TONIGHT SHOWERS AND THUNDERSTORMS WILL
OVERSPREAD THE REGION. THESE STORMS WILL BECOME MORE FREQUENT WITH
THE LIKELIHOOD OF LOCALLY HEAVY DOWNPOURS AND GUSTY WINDS. THESE
STORMS WILL BE FOLLOWED BY THE COLD FRONT WHICH WILL LOWER
TEMPERATURES AND CAUSE A SIGNIFICANT DROP IN HUMIDITY.

THE RECORD HIGH TEMPERATURE AT NEWARK INTERNATIONAL AIRPORT FOR JULY
23RD IS 100 DEGREES SET IN 1955. THE TEMPERATURE REACHED 90 DEGREES
AT 1205 EDT. THIS IS THE 27TH DAY THE TEMPERATURE AT NEWARK HAS
REACHED THE 90 DEGREE MARK DURING 1991. ON MONDAY THE TEMPERATURE AT
NEWARK REACHED A HIGH OF 89 DEGREES GIVING US A BREAK FROM OUR SEVEN
DAY HEAT WAVE. IT RANKS 12TH ON OUR LIST OF LONG HEAT WAVES WITH THE
LONGEST BEING 20 DAYS IN A ROW OF HIGH TEMPERATURES OF 90 DEGREES OR
HIGHER SET IN 1988. TONIGHT THE LOW SHOULD REMAIN IN THE MID 70S.
THERE WILL BE A GRADUAL DECREASE IN THE HUMIDITY TOMORROW WITH THE
TEMPERATURES LOWERING TO MORE LIVABLE LEVELS. THOSE WHO ARE AT RISK
SHOULD CONTINUE TO TAKE ALL NECESSARY PRECAUTIONS. SOME SUGGESTED
TIPS:

SLOW DOWN.  STRENUOUS ACTIVITIES SHOULD BE REDUCED, ELIMINATED, OR
RESCHEDULED TO THE NIGHTTIME HOURS.  INDIVIDUALS AT RISK SHOULD SEEK
THE COOLEST AVAILABLE PLACE -NOT NECESSARILY INDOORS.  IF OUTDOORS
-IF THREATENING WEATHER APPROACHES DO NOT STAY UNDER OR IN THE
VICINITY OF SHADY TREES.

DRESS IN LIGHTWEIGHT LIGHT COLORED CLOTHES WHICH REFLECT HEAT AND
SUNLIGHT, AND HELPS YOUR BODY MAINTAIN NORMAL TEMPERATURES.

DRINK PLENTY OF WATER OR OTHER NON-ALCOHOL FLUIDS.  YOUR BODY NEEDS
WATER TO KEEP COOL. PEOPLE AT RISK SHOULD CONSULT A PHYSICIAN BEFORE
INCREASING THEIR CONSUMPTION OF FLUIDS.

SPEND AS MUCH TIME AS POSSIBLE IN AN AIR CONDITIONED ENVIRONMENT.
VENTILATE YOUR LIVING AREAS AS MUCH AS POSSIBLE.  ALLOW THE AIR TO
CIRCULATE AND MOVE AS MUCH AS POSSIBLE.

DON'T GET TOO MUCH SUN. A SUNBURN DOES NOT MAKE THE JOB OF HEAT
DISSIPATION EASY FOR THE BODY.

FINALLY, PLEASE REMEMBER THE PETS THAT AFFORD US SO MUCH HAPPINESS,
COMPANIONSHIP AND PLEASURE.  THEY ARE AFFECTED BY THE HEAT ALSO.
PUT AN ICE CUBE OR TWO IN THEIR WATER DISH.

WCB/GH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 4:54 PM EDTSevere Thunderstorm WarningOKXEssex, Morris, Passaic66 min
Jul 23, 4:54 PM EDTSevere Thunderstorm WarningOKXBergen66 min
Jul 23, 5:06 PM EDTSevere Thunderstorm WarningOKXHunterdon, Morris, Somerset69 min
Jul 23, 5:16 PM EDTSevere Thunderstorm WarningOKXMiddlesex, Union59 min
Jul 23, 5:16 PM EDTSevere Thunderstorm WarningOKXHudson59 min
Jul 23, 5:54 PM EDTSevere Thunderstorm WarningOKXMonmouth66 min

Nearby

Flash Flood Warnings in New Jersey, 1991Every flash flood warning in 1991

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.