Alert archive / New Jersey / Flash Flood Warnings in 1989
Flash Flood Warning 37, NWS New York, NY
NWS New York, NY issued this flash flood warning at Oct 20, 1989, 6:00 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Oct 20, 1989, 6:00 PM EDT (22:00 UTC)
- Expired
- Oct 20, 1989, 8:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Morris County, NJ, Somerset 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 12:00Z, 10.0 hours before the alert went out and 141 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.
- Mixed-layer CAPE
- 151 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEWR 202207 FFWEWR NJC023-035-027-210000- BULLETIN-IMMEDIATE BROADCAST REQUESTED SMALL STREAM AND URBAN FLOOD WARNING NATIONAL WEATHER SERVICE NEWARK NJ 600 PM EDT FRI OCT 20 1989 THE NATIONAL WEATHER SERVICE HAS ISSUED A SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 800 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTH CENTRAL NEW JERSEY...SOMERSET...MIDDLESEX. NORTHWEST NEW JERSEY...SOUTHERN MORRIS. LIGHT TO MODERATE RAIN CONTINUED TO FALL OVER NORTH CENTRAL NEW JERSEY DURING THE LATE AFTERNOON. THE RAIN IS EXPECTED TO PERSIST FOR THE NEXT SEVERAL HOURS AND WILL LIKELY CAUSE ADDITIONAL RISES IN SMALL STREAMS AND CREEKS WHICH ARE ALREADY NEAR OR AT BANKFUL. IF YOU ARE IN THE WARNED COUNTIES IN AN AREA SUBJECT TO FLOODING, MOVE TO HIGHER GROUND. DO NOT ATTEMPT TO DRIVE THROUGH FLOOD WATERS. THOMAS
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, Oct 20, 12:24 PM EDT, 5 hours 36 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1230 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 2 PM EDT... URBAN AND SMALL STREAM FLOOD WATCH IN EFFECT FOR SOUTHEASTERN NEW YORK STATE AND NORTHERN NEW JERSEY..... AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS AND POSSIBLE THUNDERSTORMS WAS LOCATED OVER CENTRAL PENNSYLVANIA... ALL OF NEW JERSEY...NORTHERN DELAWARE,,,THE NEW YORK METROLPOITAN AREA... LONG ISLAND...MOST OF CONNECTICUT..SOUTHEASTERN NEW YORK STATE...THE WESTERN THIRD OF MASSACHUSETTS...AND OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR BRIDGEPORT AND OVER MOST OF EASTERN NEW JERSEY. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL START UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITYH A LOW PRESSURE OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY BRINGING MORE RAIN AND HEAVY AT TIMES. THIS WILL RESULT IN URBAN AND SMALL STREAM FLOODING FOR TODAY. THE AREA OF RAIN WAS MOVING NORTH AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 1:29 PM EDT, 4 hours 31 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 130 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 3 PM EDT... URBAN AND SMALL STREAM FLOOD WARNING EFFECT FOR SOUTHEASTERN NEW YORK STATE INCLUDING NEW YORK CITY...WESTCHESTER AND ROCKLAND COUNTIES...NORTHERN NEW JERSEY. AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS WAS LOCATED OVER EASTERN PENNSYLVANIA...THE NORTHERN TWO THIRDS OF NEW JERSEY ...THE NEW YORK METROLPOITAN AREA...LONG ISLAND...MOST OF CONNECTICUT... THE WESTERN HALF OF MASSACHUSETTS...THE LOWER HUDSON VALLEY...AND OUT OVER THE OCEAN OUT OT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR NEW HAVEN. A COLD FRONT ASSOCIATED WITYH A LOW PRESSURE OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY BRINGING MORE RAIN AND HEAVY AT TIMES. THIS WILL RESULT IN URBAN AND SMALL STREAM FLOODING FOR TODAY. THE AREA OF RAIN WAS MOVING NORTH AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 2:30 PM EDT, 3 hours 30 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 230 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 4 PM EDT... URBAN AND SMALL STREAM FLOOD WARNING EFFECT FOR SOUTHEASTERN NEW YORK STATE INCLUDING NEW YORK CITY...WESTCHESTER AND ROCKLAND COUNTIES...NORTHERN NEW JERSEY. AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS WAS LOCATED OVER THE NORTHERN TWO THIRDS OF NEW JERSEY...THE NEW YORK METROLPOITAN AREA...LONG ISLAND...MOST OF CONNECTICUT...THE WESTERN HALF OF MASSACHUSETTS...THE LOWER HUDSON VALLEY...AND OUT OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER WESTERN CONNECTICUT AN9D OVER CENTRAL LONG ISLAND. THE RAIN WAS MOVING NORTHEAST AT 20 MILES AN HOUR. GSK
Special weather statement, Oct 20, 3:27 PM EDT, 2 hours 33 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 330 PM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 5 PM EDT... URBAN AND SMALL STREAM FLOOD WARNING EFFECT FOR SOUTHEASTERN NEW YORK STATE INCLUDING NEW YORK CITY...WESTCHESTER AND ROCKLAND COUNTIES...NORTHERN NEW JERSEY. AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS WAS LOCATED OVER THE NORTHERN TWO THIRDS OF NEW JERSEY...EASTERN PENNSYLVANIA ...THE NEW YORK METROPOLITAN AREA...LONG ISLAND...MOST OF CONNECTICUT... MOST OF MASSACHUSETTS...THE LOWER HUDSON VALLEY...AND OUT OVER THE OCEAN OUT TO ABOUT 150 MILES SOUTH OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CENTRAL CpONNECTICUT AND OVER CENTRAL LONG ISLAND. THE RAIN WAS MOVING NORTHEAST AT 20 MILES AN HOUR. GSK
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 11:00 AM EDT | Flash Flood Warning | OKX | Monmouth | 4 hr |
| Oct 20, 11:00 AM EDT | Flash Flood Warning | OKX | Hunterdon, Somerset | 4 hr |
| Oct 20, 11:00 AM EDT | Flash Flood Warning | OKX | Warren | 4 hr |
| Oct 20, 12:15 PM EDT | Flash Flood Warning | OKX | Morris, Passaic, Sussex | 4 hr |
| Oct 20, 12:15 PM EDT | Flash Flood Warning | OKX | Essex | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 1989Every flash flood warning in 1989
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.