Alert archive / New Jersey / Flash Flood Warnings in 1989
Flash Flood Warning 23, NWS New York, NY
NWS New York, NY issued this flash flood warning at Oct 20, 1989, 11:00 AM EDT for Hunterdon County, Somerset County, New Jersey. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Oct 20, 1989, 11:00 AM EDT (15:00 UTC)
- Expired
- Oct 20, 1989, 3:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Hunterdon 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, 3.0 hours before the alert went out and 126 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
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, Oct 20, 5:50 AM EDT, 5 hours 10 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 530 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 7 AM EDT... AN AREA OF HEAVY SHOWERS AND THUNDERSHOWERS EXTENDED FROM OFF THE SOUTHERN NEW JERSEY COAST JUST EAST OF ATLANTIC CITY TO NEW BRUNSWICK IN MIDDLESEX COUNTY NEW JERSEY. HEAVY THUNDERSHOWERS WERE ALSO OVER LONG ISLAND IN THE VACINITY OF ISLIP. LIGHT TO MODERATE SHOWERS COVERED NORTHEASTERN NEW JERSEY...THE LOWER HUDSON VALLEY...INCLUDING THE METROPOLITAN AREA...WESTERN LONG ISLAND...WESTERN CONNECTICUT...AND SOUTHWESTERN MASSACHUSETTS. THE RAIN WAS MOVING NORTH NORTHEAST AT 35 MILES AN HOUR. WEATHER STATIONS AROUND THE AREA CONTINUED TO REPORT MODERATE TO HEAVY RAIN DURING THE PAST HOUR AND IT SHOULD CONTINUE THE NEXT SEVERAL HOURS AS A LOW PRESSURE SYSTEM ALONG THE MARYLAND COAST MAKES ITS WAY NORTH. THE NEXT STATEMENT WILL BE ISSUED AT 645 AM EDT OR AS NEEDED. END/BLS
Special weather statement, Oct 20, 6:45 AM EDT, 4 hours 15 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 630 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 8 AM EDT... AN AREA OF MODERATE TO HEAVY SHOWERS WERE OVER NORTHERN NEW JERSEY AND THE METROPOLITAN AREA...MODERATE SHOWERS WERE ALSO OVER NORTHWESTERN CONNECTICUT. AND WESTERN LONG ISLAND. LIGHT TO MODERATE RAIN WAS OVER COASTAL NEW JERSEY...SOUTHEASTERN PENNSYLVANIA...THE LOWER HUDSON VALLEY ...WESTERN CONNECTICUT...AND WESTERN MASSACHUSETTS. THE RAIN WAS MOVING NORTH NORTHEAST AT 35 MILES AN HOUR. WEATHER STATIONS AROUND THE AREA REPORTED MOSTLY LIGHT TO MODERATE RAIN WITH BIRIDGEPORT REPORTING A THUNDERSHOWER. THE RAIN ALONG WITH THE POSSIBILITY OF SOME FLOODING WILL CONTINUE INTO THE MORNING AS A LOW PRESSURE SYSTEM ALONG THE MARYLAND COAST MAKES ITS WAY NORTH. THE NEXT STATEMENT WILL BE ISSUED AT 645 AM EDT OR AS NEEDED. END/BLS
Special weather statement, Oct 20, 7:52 AM EDT, 3 hours 8 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 730 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 8 AM EDT... RADAR SHOWED LIGHT TO MODERATE SHOWERS SCATTERED ACROSS NEW JERSEY... THE METROPOLITAN AREA...LONG ISLAND...THE HUDSON VALLEY...WESTERN MASSACHUSETTS...AND EASTERN PENNSYLVANIA. THE HEAVIER RAIN MOVED NORTH AND EAST HOWEVER MANY STATIONS ACROSS THE AREA REPORTED MODERATE RAIN DURING THE PAST HOUR. THERE MAY BE A BREAK IN THE RAIN BUT IT WILL ONLY BE A SHORT PAUSE BEFORE IT STARTS AGAIN. THE WARM FRONT WHICH GAVE US HEAVY RAINS EARLIER THIS MORNING MOVED NORTH OF JFK AIRPORT RAISING THEIR TEMPERATURE INTO THE 60S. A COLD FRONT ASSOCIATED WITH THE LOW OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. THE NEXT STATEMENT WILL BE ISSUED AT 845 AM EDT. END/BLS
Special weather statement, Oct 20, 8:32 AM EDT, 2 hours 28 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 830 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 10 AM EDT... RADAR SHOWED LIGHT TO MODERATE SHOWERS SCATTERED ACROSS NEW JERSEY... THE METROPOLITAN AREA...LONG ISLAND...THE HUDSON VALLEY...WESTERN CONNECTICUT...AND EASTERN PENNSYLVANIA. THE HEAVIER RAIN MOVED TO THE NORTH OF THE NEW YORK CITY ARE. THE HEAVIER REPORTS ARE IN WESTCHESTER AND ROCLAND COUNTIES. THERE MAY BE A BREAK IN THE RAIN BUT IT WILL ONLY BE A SHORT PAUSE BEFORE IT STARTS AGAIN. THE WARM FRONT WHICH GAVE US HEAVY RAINS EARLIER THIS MORNING MOVED NORTH OF JFK AIRPORT RAISING THEIR TEMPERATURE INTO THE 60S. A COLD FRONT ASSOCIATED WITH THE LOW %OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. THE NEXT STATEMENT WILL BE ISSUED AT 945 AM EDT. END/GSK
Special weather statement, Oct 20, 9:36 AM EDT, 1 hour 24 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 930 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 11 AM EDT... RADAR SHOWED LIGHT TO MODERATE SHOWERS SCATTERED ACROSS NEW JERSEY... THE METROPOLITAN AREA...LONG ISLAND...SOUTHEASTERN NEW YORK STATE... EASTERN PENNSYLVANIA...WESTERN THIRD OF CONNECTICUT...AND A SMALL PORTION OF MASSACHUSETTS. THERE ALSO WAS HEAVY SHOWERS AND POSSIBLE THUNDERSHOWRS OVER THE OCEAN SOUTH OF LONG ISLAND AND JUST SOUTH OF NEW HEAVEN. THESE STORMS MIGHT HIT NEW HAVEN AND ISLIP WITHIN THE NEXT 20 MINUTES. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL START UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITH THE LOW OFF THE MARYLAND KCOAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. THE SHOWERS AND THUNDERSHOWERS WERE MOVING NORTH AT 25 MILES AN HOUR GSK
Special weather statement, Oct 20, 10:34 AM EDT, 26 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 1030 AM EDT FRI OCT 20 1989 ...DO NOT USE AFTER 12 NOON EDT... AN EXTENSIVE AREA OF RAIN WITH PATCHES OF MODERATE TO HEAVY RAINSHOWERS AND POSSIBLE THUNDERSHTORMS 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...AND OVER THE OCEAN ABOUT TO ABOUT 150 MILES SOUTH AND EAST OF NEW YORK CITY. WITHIN THESE AREA WERE HEAVY SHOWERS OVER CONNECTICUT NEAR BRIDGEPORT AND OVER NEW JERSEYIN THE COUNTIES OF MONTGOMERY AND BURLINGTON. THERE MIGHT BE A SHORT BREAK WITHOUT RAIN BUT IT WILL STAR}T UP VERY SHORTLY. A COLD FRONT ASSOCIATED WITH THE LOW OFF THE MARYLAND COAST WILL MOVE THROUGH THE AREA LATER TODAY GIVING US MORE RAIN SO URBAN AND SMALL STREAM FLOODING IS STILL POSSIBLE FOR THE AREA TODAY. 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 | 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 |
| Oct 20, 6:00 PM EDT | Flash Flood Warning | OKX | Morris, Somerset | 2 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Bronx, New York | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Nassau, Suffolk | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Rockland, Westchester | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Richmond | 3 hr |
| Oct 20, 12:00 PM EDT | Flash Flood Warning | OKX | Kings, Queens | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Rockland, Westchester | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Bronx, New York | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Kings, Nassau, Queens | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Richmond | 3 hr |
| Oct 20, 3:20 PM EDT | Flash Flood Warning | OKX | Suffolk | 3 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.