Alert archive / New York / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 24, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Sep 29, 1986, 9:14 PM EDT for Niagara County, New York. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Sep 29, 1986, 9:14 PM EDT (01:14 UTC)
- Expired
- Sep 29, 1986, 10:10 PM EDT
- In force
- 56 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
County Niagara 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
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.2 hours before the alert went out and 27 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
- 1008 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBUF 300114 SVRBUF NYC063-300210- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE BUFFALO NY 914 PM EDT MON SEP 29 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1010 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NEW YORK...NORTHERN NIAGARA ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTY JUST MENTIONED AT 910PM BUFFALO RADAR DETECTED A VERY STRONG THUNDERSTORM JUST WEST OF NIAGARA ON THE LAKE. THIS THUNDERSTORM WAS MOVING NORTHEAST AT 40 MILES AN HOUR. BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT LIGHTNING STRONG DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY RAIN MAY ALSO CAUSE DRAINAGE FLOODING. . IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. IN HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION. ALL MARINE INTERESTS SHOULD REMAIN ALERT AND SMALL BOATS TAKE SHELTER IMMEDIATELY.
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, Sep 29, 5:41 PM EDT, 3 hours 33 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 530 PM EDT MON SEP 29 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 530 IN EFFECT TIL 10 PM EDT FOR CHAUTAUQUA..CATTARAUGUS..ALLEGANY..STEUBEN..SCHUYLER AND CHEMUNG COUNTIES... SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE SOUTHERN TIER COUNTIES. SHOWERS AND THUNDERSTORMS WERE IN A BAND ABOUT 20 MILES WIDE FROM NEAR ELLICOTTVILLE IN CATTARAUGUS COUNTY..ACROSS THE SOUTHERN FINGER LAKES REGION TO NEAR CORTLAND NEW YORK. THE HEAVIER THUNDERSTORMS WERE NEAR FRANKLINVILLE..AVOCA..AND KEUKA LAKE. THESE SHOWERS AD THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 40 TO 45 MILES AN HOUR. SHOWERS AND THUNDERSTORMS WERE OVER ONTARIO FROM BRANTFORD AND LONDON TO LAKE HURON. THESE SHOWERS WERE MOVING NORTHEAST AT 45 MILES AN HOUR. BE ON THE ALERT FOR THREATENING WEATHER AND LISTEN FOR FURTHER ADVISORIES AND STATEMENTS. LAZARUS
Special weather statement, Sep 29, 6:41 PM EDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 630 PM EDT MON SEP 29 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 530 IN EFFECT TIL 10 PM EDT FOR CHAUTAUQUA..CATTARAUGUS..ALLEGANY..STEUBEN..SCHUYLER AND CHEMUNG COUNTIES... SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE SOUTHERN TIER COUNTIES. A HEAVY THUNDERSTORM WAS SOUTH OF ANGELICA IN ALLEGANY COUNTY. SHOWERS AND ISOLATED THUNDERSTORMS WERE SCATTEREC FROM THE CENTRAL SOUTHERN TIER ..ACROSS THE FINGER LAKES TO EASTERN LAKE ONTARIO. THESE SHOWERS AD THUNDERSTORMS WERE MOVING EAST ABOUT 40 MILES AN HOUR. SHOWERS AND THUNDERSTORMS WERE OVER ONTARIO FROM LONDON AND HAMILTON TO GEORGIAN BAY AND LAKE SIMCOE. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR. BE ON THE ALERT FOR THREATENING WEATHER AND LISTEN FOR FURTHER ADVISORIES AND STATEMENTS. LAZARUS
Special weather statement, Sep 29, 7:43 PM EDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 730 PM EDT MON SEP 29 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 530 IN EFFECT TIL 10 PM EDT FOR CHAUTAUQUA..CATTARAUGUS..ALLEGANY..STEUBEN..SCHUYLER AND CHEMUNG COUNTIES... A HEAVY THUNDERSTORM WAS NEAR SODUS NEW YORK. SCATTERED SHOWERS WERE NEAR AVON AND HORNELL NEW YORK. THESE SHOWERS AND THUNDERSTORM WERE MOVING EAST AT 40 MILES AN HOUR. SHOWERS AND THUNDERSTORMS WERE OVER ONTARIO FROM HAMILTON AND SIMCOE TO LAKE SIMCOE AND PETERBOROUGH. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR. BE ON THE LATER FOR THREATENING WEATHER AND LISTEN FOR FURTHER ADVISORIES AND STATEMENTS. LAZARUS
Special weather statement, Sep 29, 8:36 PM EDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 830 PM EDT MON SEP 29 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 530 FOR CHAUTAUQUA... CATTARAUGUS..ALLEGANY..STEUBEN..SCHUYLER AND CHEMUNG COUNTIES IS NO LONGER IN EFFECT. ALTHOUGH THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE SOUTHERN TIER COUNTIES OF NEW YORK...AT 830 PM BUFFALO WEATHER RADAR SHOWED STRONG THUNDERSTORMS OVER THE WESTERN END OF LAKE ONTARIO AND OVER THE NIAGARA PENINSULA SOUTH OF HAMILTON. THESE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR. THE STORM OVER THE NIAGARA PENINSULA COULD BRUSH THE EXTREME NORTHWEST PORTION OF NIAGARA COUNTY AND THE UPPER NIAGARA RIVER OVER THE NEXT HOUR OR TWO. LISTEN FOR FURTHER STATEMENTS ON THESE STORMS. END/JJP
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 30, 2:49 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 101 min |
| Sep 30, 3:06 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Erie | 64 min |
| Sep 30, 3:37 PM EDT | Severe Thunderstorm Warning | BUF | Wyoming | 63 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.