Alert archive / New York / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 3, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at May 31, 1986, 5:45 PM EDT for Nassau County, New York. It was in force for 75 min.
The area
The counties it named.
The facts
- Issued
- May 31, 1986, 5:45 PM EDT (21:45 UTC)
- Expired
- May 31, 1986, 7:00 PM EDT
- In force
- 75 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Nassau County, NY
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, 9.8 hours before the alert went out and 162 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
- 1027 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1356 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 31 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 KNYC 312152 RRA SVRNYC NYC059-312300- BULLETIN...IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 545 PM EDT SAT MAY 31 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NEW YORK...NASSAU AT 545415 PM EDT RADAR SHOWED SEVERE THUNDERSTORMS IN NASSAU COUNTIES IN NEW YORK MOVING EASTSOUTHEAST AT 20 MILES AN HOUR. THE THUNDERSTORMS vARE ACCOMPANIED HEAVY RAIN GUSTS TO 50 MILES AN HOUR..LARGE HAIL..DANGEROUS LIGHTNING. IF THREATENING WEATHER APPROACHES SEEK SHELTER IMMEDIATELY. ES/BS
What 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, May 31, 3:23 PM EDT, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT FOR EXTREME SOUTHEASTERN NEW YORK NORTHERN NEW JERSEY..AND LONG ISLAND NATIONAL WEATHER SERVICE NEW YORK NY 330 PM EST FRI MAY 30 1986 ...THUNDERSTORM ACTIVITY DEVELOPING... AT 3 PM EDT THE RADAR IN NEW YORK CITY DETECTED THUNDERSTORMS IN MORRIS COUNTY NEW JERSEY. THEY WERE MOVING EASTWARD TOWARD PASSIC AND SUSSEX COUNTIES. SHORTLY THEREAFTER OTHER THUNDERSTORMS WERE DETECTED AROUND THE AREA. THESE THUNDERSTORMS ARE ACOMPANIED BY HEAVY RAIN. THE THUNDERSTORM ACTIVITY WILL REMAIN WITH US FOR THE NEXT FEW HOURS. PERSONS PLANNING OUTDOOR ACTIVITIES SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. ES
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 4:15 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Suffolk | 105 min |
Nearby
Severe Thunderstorm Warnings in New York, 1986Every severe thunderstorm warning in 1986
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.