Alert archive / New York / Tornado Warnings in 1986
Tornado Warning 1, NWS New York, NY
NWS New York, NY issued this tornado warning at Aug 8, 1986, 11:30 AM EDT for Suffolk County, New York. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Aug 8, 1986, 11:30 AM EDT (15:30 UTC)
- Expired
- Aug 8, 1986, 12:00 PM EDT
- In force
- 30 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Suffolk 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, 3.5 hours before the alert went out and 226 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
- 1828 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 951 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNYC 081531 TORNYC NYC103-081600- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE NEW YORK NY 1130 AM EDT FRI AUG 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1200 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NEW YORK...EASTERN SUFFOLK ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTY JUST MENTIONED A TORNADO WAS REPORTED AT PLUM ISLAND OFF THE NORTH FORK OF LONG ISLAND. FUNNEL CLOUDS WERE SPOTTED AT EAST HAMPTON ON THE SOUTH FORK. THESE STORMS WERE MOVING EAST AT 25 MPH. RESIDENTS IN THESE AREAS AND MARINE INTERESTS ON EASTERN LONG ISLAND SOUND AND OFF THE SOUTH SHORE SHOULD SEEK SAFE SHELTER IMMEDIATELY. SDT
What forecasters said that day
The local office's own words before this tornado 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, Aug 8, 9:04 AM EDT, 2 hours 26 minutes before
SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 900 AM EDT FRI AUG 8 1986 VERY HEAVY THUNDERSTORMS HAVE DEVELOPED RAPIDLY THIS MORNING ALONG THE NORTH SHORE OF LONG ISLAND IN CENTRAL SUFFOLK COUNTY AND OVER LONG ISLAND SOUND. THE STORMS WERE MOVING NORTHEAST AT 30 MPH AND CONTAIN VERY HEAVY RAIN..GUSTY WIND..DANGEROUS LIGHTNING AND POSSIBLE HAIL. PEOPLE ALONG THE NORTH SHORE OF SUFFOLK COUNTY AND BOATERS OVER LONG ISLAND SOUND SHOULD REMAIN ALERT FOR THREATENING WEATHER CONDITIONS THIS MORNING. THE STORM MAY BRING GUSTY WINDS AND ROUGH SEAS OVER THE SOUND. LAND AREAS WILL EXPERIENCE BRIEF URBAN AND STREET FLOODING FROM THE HEAVY RAINS. THOMAS
Special weather statement, Aug 8, 9:40 AM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK NY 9.40 AM EDT FRIDAY AUGUST 8 1986 ...DO NOT USE AFTER 11 AM EDT... VERY HEAVY THUNDERSTORMS WERE OVER THE LONG ISLAND SOUND...JUST NORTH OF MATTITUCK...AND WEST OF SOUTHOLD LONG ISLAND... THUNDERSTORMS WERE ALSO OCCURING OVER THE SOUTHERN SHORE OF CONNECTICUT... WATCH FOR STRONG GUSTY WINDS HEAVY RAIN AND DANGEROUS LIGHTNING... THUNDERSTORMS WERE MOVING EAST AT 45 MILES AN HOUR... END/PJJ
Special weather statement, Aug 8, 10:41 AM EDT, 49 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK NY 10.40 AM EDT FRIDAY AUGUST 8 1986 ...DO NOT USE AFTER 12 NOON EDT... VERY HEAVY THUNDERSTORM WAS OVER EASTERN CONNECTICUT...JUST WEST OF PLAINFIELD... VERY HEAVY THUNDERSTORMS WERE OVER THE LONG ISLAND SOUND...NEAR ORIENT POINT...AND GREENPORT... THUNDERSTORMS WERE ALSO OCCURING OVER EASTERN CONNECTICUT... WATCH FOR STRONG GUSTY WINDS HEAVY RAIN AND DANGEROUS LIGHTNING... THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR... END/PJJ
Special weather statement, Aug 8, 11:00 AM EDT, 30 minutes before
WEATHER MAP DISCUSSION AND SPECIAL WEATHER STATEMENT FOR EXTREME SOUTHEASTERN NEW YORK NORTHERN NEW JERSEY..AND LONG ISLAND NATIONAL WEATHER SERVICE NEW YORK NY 1030 AM EDT FRI AUG 8 1986 ...HEAVY DOWNPOURS MAY CAUSE LOCAL HIGHWAY AND URBAN FLOODING THIS AFTERNOON AND EVENING. DANGEROUS LIGHTNING..HAIL..AND STRONG GUSTY WINDS POSSIBLE IN THUNDERSTORMS... A WEAK FRONTAL SYSTEM SHOULD DRIFT ACROSS THE AREA TODAY. THIS FRONT MAY CAUSE SOME LOCAL HEAVY DOWNPOURS AND THUNDERSTORMS WITH DANGEROUS LIGHTNING..STRONG GUSTY WINDS AND HAIL THIS AFTERNOON AND EVENING. THE HEAVY DOWNPOURS MAY CAUSE SOME LOCAL HIGHWAY AND STREET FLOODING. THIS FRONT SHOULD MOVE EAST OF THE AREA TONIGHT FOLLOWED BY SLIGHTLY DRIER BUT STILL SEASONABLY WARM AIR SO THE CHANCE OF SHOWERS WILL DECREASE LATER TONIGHT AND SATURDAY. SKIES SHOULD CLEAR SOME LATER TONIGHT WITH SATURDAY AND SUNDAY BEING PARTLY SUNNY WITH ABOVE NORMAL TEMPERATURES. BLS
Nearby
Tornado Warnings in New York, 1986Every tornado warning in 1986Tornadoes 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.