Alert archive / New Jersey / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 29, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 9, 1990, 3:45 PM EDT for Essex County, Morris County, Union County, New Jersey. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Jul 9, 1990, 3:45 PM EDT (19:45 UTC)
- Expired
- Jul 9, 1990, 4:30 PM EDT
- In force
- 45 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Essex County, NJ, Morris County, NJ, Union 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, 7.8 hours before the alert went out and 147 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
- 684 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 614 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KNYC 091948
SVRNYC
NJC027-013-039-092030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
345 PM EDT MON JUL 9 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 430 PM EDT FOR
PEOPLE IN THE FOLLOWING COUNTIES
IN THE STATE OF NEW JERSEY
MORRIS...ESSEX..UNION
POTENTIALLY SEVERE THUNDERSTORMS WERE BEING FOLLOWED ON RADAR MOVING
TO THE EAST SOUTHEAST ACROSS WARREN COUNTY AT 340 PM EDT. THE STORMS WILL
MOVE EAST SOUTHEAST AT 35 TO 40 MILES AN HOUR AND MIGHT CONTAIN STRONG
WIND GUSTS TO OVER 55 MILES AN HOUR ALONG WITH LARGE HAIL AND HEAVY
RAIN AND DANGEROUS LIGHTNING.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
TJGWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 9, 3:30 PM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR NORTHERN NEW JERSEY AND EXTREME SOUTHEASTERN NEW YORK NATIONAL WEATHER SERVICE NEW YORK NY 330 PM EDT MON JUL 9 1990 ...A SEVERE THUNDERSTORM WATCH COVERS THE NORTHERN HALF OF NEW JERSEY ...AND NEW YORK CITY AND NASSAU COUNTY IN NEW YORK...TIL 10 PM... A COLD FRONT WAS MOVING EASTSOUTHEASTWARD THROUGH CENTRAL NEW YORK AND CENTRAL PENNSYLVANIA AT MIDAFTERNOON. THE VERY WARM HUMID AND UNSTABLE AIRMASS IN FRONT OF THIS FRONT IS A PRIME AREA FOR THE FORMATION OF VERY STRONG AND POSSIBLY SEVERE THUNDERSTORMS FOR THE REMAINDER OF THIS AFTERNOON AND EARLY TONIGHT. TEMPERATURES WERE IN THE UPPER 80S AND LOW 90S...AND HUMIDITIES WERE QUITE HIGH. AT 3 PM...A STRONG THUNDERSTORM CELL WAS MOVING INTO CENTRAL NEW JERSEY. IN FACT... CENTRAL NEW JERSEY COULD BE THE FOCUS OF MUCH OF THE STORM ACTIVITY THIS AFTERNOON AND EVENING. HOWEVER...ALL AREA RESIDENTS NEED TO REMAIN ALERT TO CHANGING WEATHER CONDITIONS THIS AFTERNOON AND EVENING. AFTER THE FRONT MOVES SOUTHEAST OF OUR AREA TONIGHT...WE LOOK FOR EQUALLY WARM BUT SOMEWHAT LESS HUMID WEATHER FOR TUESDAY. CONTINUED LOW PRESSURE IN THE UPPER PART OF THE ATMOSPHERE COULD PROVIDE A RETURN TO SHOWER CHANCES FOR WEDNESDAY...BUT TEMPERATURES COULD EASE A BIT BY THEN. FURTHER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TV FOR FURTHER WEATHER UPDATES...AS WELL AS POSSIBLE WARNINGS. JRP
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 3:05 PM EDT | Severe Thunderstorm Warning | OKX | Middlesex, Monmouth | 85 min |
| Jul 9, 3:05 PM EDT | Severe Thunderstorm Warning | OKX | Hunterdon, Warren | 85 min |
| Jul 9, 3:05 PM EDT | Severe Thunderstorm Warning | OKX | Somerset | 85 min |
| Jul 9, 4:25 PM EDT | Severe Thunderstorm Warning | OKX | Middlesex, Morris, Somerset, Union | 65 min |
| Jul 9, 4:25 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Passaic | 65 min |
| Jul 9, 4:25 PM EDT | Severe Thunderstorm Warning | OKX | Monmouth | 65 min |
| Jul 9, 4:25 PM EDT | Severe Thunderstorm Warning | OKX | Hudson | 65 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1990Every severe thunderstorm 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.