Alert archive / New Jersey / Flash Flood Warnings in 1994

Flash Flood Warning 5, NWS New York, NY

July 25, 1994Middlesex County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 25, 1994, 5:29 PM EDT for Middlesex County, New Jersey. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1994, 5:29 PM EDT (21:29 UTC)
Expired
Jul 25, 1994, 6:30 PM EDT
In force
61 min
Issued by
NWS New York, NY
Area
Whole counties

County Middlesex County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 9.5 hours before the alert went out and 110 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 1994-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1779 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 1994-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
1779 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1034 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNYC 252129
FFWNYC
NJC023-252230-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
529 PM EDT MON JUL 25 1994
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  630 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST NEW JERSEY
 
   ...MIDDLESEX COUNTY
 
RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS MOVING INTO MIDDLESEX
COUNTY. THESE STORMS WILL PRODUCE VERY HEAVY RAINS ALSO...AND CAUSE
URBAN ROAD AND HIGHWAY FLOODING AS WELL AS FLOODING OF SOME CREEKS AND
STREAMS.
 
MOTORISTS WILL NEED TO WATCH FOR FLOODED ROADS. NEVER DRIVE INTO A
FLOODED AREA.
 
THE STORMS WERE MOVING EASTNORTHEASTWARD AROUND 15 MILES AN HOUR.
 
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 25, 3:06 PM EDT, 2 hours 23 minutes before
NYZ067>081-NJZ001>014-252000-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
305 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NEW JERSEY AND PARTS OF
SOUTHEASTERN NEW YORK TIL 9 PM...

AT 300 PM RADAR AND SURFACE OBSERVATIONS INDICATED STRONG THUNDERSTORMS
STILL ALONG THE MONMOUTH COUNTY NEW JERSEY COAST. SEVERAL STORM CELLS
HAVE FORMED IN THIS AREA DURING THE PAST 90 MINUTES. A VERY STRONG CELL
HAD FORMED AT 250 PM BETWEEN ASBURY PARK AND LONG BRANCH JUST EAST OF
ROUTE 18.

OTHER STRONG STORMS WERE JUST OFF THE COAST OVER THE MONMOUTH COUNTY
COASTAL WATERS.  THESE STORMS EXTENDED NORTHEASTWARD TO JUST SOUTH OF
ATLANTIC BEACH ON FIRE ISLAND. INDIVIDUAL CELLS WERE MOVING NORTHEAST
AROUND 15 MILES AN HOUR AND THE AREA WAS EDGING EASTWARD SLOWLY.

ALL AREA RESIDENTS SHOULD WATCH FOR THE FORMATION OR APPROACH OF STRONG
OR SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING.R WHEN STORMS APPROACH
...GET INSIDE A STURDY BUILDING AND OUT OF THE DANGEROUS ELEMENTS.
Special weather statement, Jul 25, 4:00 PM EDT, 1 hour 29 minutes before
NYZ067>081-NJZ001>014-252200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
400 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT TIL 9 PM FOR NEW
JERSEY AND PART OF SOUTHEASTERN NEW YORK...

THUNDERSTORMS FROM OCEAN AND COASTAL MONMOUTH COUNTY NEW JERSEY AND
OVER THE NEW YORK BIGHT WATERS SOUTH OF NEW YORK CITY WERE WEAKENING
AT 4 PM...ALTHOUGH THERE WERE STILL SOME STRONG CELLS JUST OFF THE
MONMOUTH COUNTY COAST.

ANOTHER LINE OF SHOWERS AND SOME THUNDERSTORMS WAS OVER ORANGE COUNTY
NEW YORK AND SOUTHWESTWARD ALONG THE DELAWARE RIVER. SOME STORMS ALONG
THIS LINE MAY DEVELOP RAPIDLY AS IT MOVES SLOWLY EASTWARD. THE STORM
OVER WESTERN ORNAGE COUNTY APPEARED TO BE WEAKENING AT 4 PM.

ALL AREA RESIDENTS SHOULD CONTINUE TO MONITOR THE SKY AND GET INSIDE A
STRONG SHELTER IF THUNDERSTORMS APPROACH YOUR LOCATION.
Special weather statement, Jul 25, 4:01 PM EDT, 1 hour 28 minutes before
NYZ067>081-NJZ001>014-252200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
400 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT TIL 9 PM FOR NEW
JERSEY AND PART OF SOUTHEASTERN NEW YORK...

THUNDERSTORMS FROM OCEAN AND COASTAL MONMOUTH COUNTY NEW JERSEY AND
OVER THE NEW YORK BIGHT WATERS SOUTH OF NEW YORK CITY WERE WEAKENING
AT 4 PM...ALTHOUGH THERE WERE STILL SOME STRONG CELLS JUST OFF THE
MONMOUTH COUNTY COAST.

ANOTHER LINE OF SHOWERS AND SOME THUNDERSTORMS WAS OVER ORANGE COUNTY
NEW YORK AND SOUTHWESTWARD ALONG THE DELAWARE RIVER. SOME STORMS ALONG
THIS LINE MAY DEVELOP RAPIDLY AS IT MOVES SLOWLY EASTWARD. THE STORM
OVER WESTERN ORNAGE COUNTY APPEARED TO BE WEAKENING AT 4 PM.

ALL AREA RESIDENTS SHOULD CONTINUE TO MONITOR THE SKY AND GET INSIDE A
STRONG SHELTER IF THUNDERSTORMS APPROACH YOUR LOCATION.
Special weather statement, Jul 25, 4:13 PM EDT, 1 hour 16 minutes before
NYZ067>081-NJZ001>014-252200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
413 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT TIL 9 PM FOR NEW
JERSEY AND PART OF SOUTHEASTERN NEW YORK...

THUNDERSTORMS FROM OCEAN AND COASTAL MONMOUTH COUNTY NEW JERSEY AND
OVER THE NEW YORK BIGHT WATERS SOUTH OF NEW YORK CITY WERE WEAKENING
AT 410 PM...ALTHOUGH THERE WERE STILL SOME STRONG CELLS JUST OFF THE
MONMOUTH COUNTY COAST.

ANOTHER LINE OF SHOWERS AND SOME THUNDERSTORMS WAS OVER ORANGE COUNTY
NEW YORK AND SOUTHWESTWARD ALONG THE DELAWARE RIVER. SOME STORMS ALONG
THIS LINE MAY DEVELOP RAPIDLY AS IT MOVES SLOWLY EASTWARD. ANOTHER
CELL HAD RECENTLY DEVELOPED OVER THE NORTHERN NASSAU-SUFFOLK COUNTY
BORDER NEAR COLD SPRING HARBOR. THIS STORM IS LIKELY TO MOVE INTO THE
COASTAL WATERS OF LONG ISLAND SOUND IN THE VICINITY OF HUNTINGTON BAY.

STAY ALERT TO RAPIDLY CHANGING WEATHER AND QUICKLY DEVELOPING STORMS
FOR A FEW MORE HOURS.
Special weather statement, Jul 25, 4:40 PM EDT, 49 minutes before
NYZ067>081-NJZ001>014-252200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
440 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT TIL 9 PM FOR NEW
JERSEY AND PART OF SOUTHEASTERN NEW YORK...

THUNDERSTORMS WERE FORMING ALONG THE ROUTE 1 CORRIDOR IN CENTRAL NEW
JERSEY FROM MIDDLESEX COUNTY NEAR EDISON SOUTHWESTWARD TOWARD MERCER
COUNTY. SOME OF THESE STORMS WILL PRODUCE HEAVY RAINS CAUSING URBAN
ROAD AND HIGHWAY FLOODING.

ANOTHER LINE OF SHOWERS AND SOME THUNDERSTORMS WAS OVER ORANGE COUNTY
NEW YORK AND SOUTHWESTWARD ALONG THE DELAWARE RIVER...WITH A STORM OVER
BUCKS COUNTY PENNSYLVANIA SHOWING STRONG STORM CHARACTERISTICS.
THESE STORMS WERE MOVING EASTWARD AROUND 20 MILES AN HOUR.

STAY ALERT TO RAPIDLY CHANGING WEATHER AND QUICKLY DEVELOPING STORMS
FOR A FEW MORE HOURS.
Special weather statement, Jul 25, 5:20 PM EDT, 9 minutes before
NYZ067>081-NJZ001>014-252300-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NEW YORK NY
520 PM EDT MON JUL 25 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT TIL 9 PM FOR NEW
JERSEY AND PART OF SOUTHEASTERN NEW YORK...

THUNDERSTORMS WERE MERGING OVER MERCER SOUTHERN HUNTERDON SOUTHERN
SOMERSET AND MIDDLESEX COUNTIES IN CENTRAL NEW JERSEY. COPIOUS RAIN
WILL CAUSE AREAS OF URBAN ROAD AND HIGHWAY FLOODING. EVENING COMMUTERS
HEADING FOR OR TRAVELING THROUGH THE ROUTE 1 CORRIDOR AND THE ROADS
LEADING TO TRENTON SHOULD ANTICIPATE LOTS OF WATER ON THE ROADS. THIS
RAIN WILL CONTINUE THROUGH 6 PM IN THESE AREAS.

THESE STORMS MAY ALSO PRODUCE BRIEF STRONG WIND GUSTS...DANGEROUS
CLOUD TO GROUND LIGHTNING...AND EVEN SOME HAIL.

ALL AREA RESIDENTS SHOULD CONTINUE TO MONITOR THE SKY AND GET INSIDE A
GOOD SHELTER IF THUNDERSTORMS APPROACH YOUR LOCATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 8:56 PM EDTSevere Thunderstorm WarningOKXMiddlesex64 min

Nearby

Flash Flood Warnings in New Jersey, 1994Every flash flood warning in 1994

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.