Alert archive / New York / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 5, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 30, 1987, 4:40 PM EDT for Allegany County, New York. It was in force for 80 min.
The area
The counties it named.
The facts
- Issued
- May 30, 1987, 4:40 PM EDT (20:40 UTC)
- Expired
- May 30, 1987, 6:00 PM EDT
- In force
- 80 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
County Allegany 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
Pittsburgh, PA (KPIT), launched 12:00Z, 8.7 hours before the alert went out and 269 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
- 1755 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -18 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 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 30, 2:49 PM EDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 250 PM EDT SAT MAY 30 1987 BRIEF HEAVY RAIN...POSSIBLY SOME HAIL AND STRONG GUSTY WINDS AND FREQUENT LIGHTNING CAN BE EXPECTED AS THESE STORMS MOVE THROUGH THE AREA. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS... PRH
Special weather statement, May 30, 2:52 PM EDT, 1 hour 48 minutes before
BUFFALO SPECIAL WEATHER AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 235PM EDT SAT MAY 30 1987 DO NOT USE AFTER 400 PM ...SEVERE THUNDERSTORM WARNING IN EFFECT FOR NORTHERN NIAGARA COUNTY UNTIL 400 PM EDT... ...SEVERE THUNDERSTORM WATCH IN EFFECT YNTIL 10 PM EDT FOR ALL OF WESTERN NEW YORK AND COASTAL WATERS... AT 235 PM...S SEVERE THUNDERSTORM WAS LOCATED OVER WESTERN LAKE ONTARIO..OR 10 MILES NORTH OF THE NIAGARA RIVER. THIS THUNDERSTORM CONTAINS STRONG GUSTY WINDS..DANGEROUS LIGHTNING..AND HAIL. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR. ELSEWHERE..NUMEROUS THUNDERSTORMS WERE OVER SOUTHERN ONTARIO..PARTS OF WESTERN NEW YORK..AND NORTHEAST OHIO AND WESTERN PENNSYLVANIA. THE STRONGEST OF THESE STORMS WAS ALONG THE LAKE ONTARIO SHORELINE BETWEEN HAMILITON AND TORONTO..AND ANOTHER INTENSE STORM WAS OVER EXTREME NORTHEAST OHIO..15 MILES NORTHEAST OF CLEVLAND. IF THREATENING WEATHER APPROACHES SEEK SHELTER IMMEDIATELY. GJS
Special weather statement, May 30, 2:57 PM EDT, 1 hour 43 minutes before
BUFFALO SPECIAL WEATHER AND RADAR SUMMARY ..CORRECTED.. NATIONAL WEATHER SERVICE BUFFALO NY 235PM EDT SAT MAY 30 1987 DO NOT USE AFTER 400 PM ...SEVERE THUNDERSTORM WARNING IN EFFECT FOR NORTHERN NIAGARA COUNTY UNTIL 400 PM EDT... ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM EDT FOR ALL OF WESTERN NEW YORK AND COASTAL WATERS... AT 235 PM...A SEVERE THUNDERSTORM WAS LOCATED OVER WESTERN LAKE ONTARIO..OR 10 MILES NORTH OF THE NIAGARA RIVER. THIS THUNDERSTORM CONTAINS STRONG GUSTY WINDS..DANGEROUS LIGHTNING..AND HAIL. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR. ELSEWHERE..NUMEROUS THUNDERSTORMS WERE OVER SOUTHERN ONTARIO..PARTS OF WESTERN NEW YORK..AND NORTHEAST OHIO AND WESTERN PENNSYLVANIA. THE STRONGEST OF THESE STORMS WAS ALONG THE LAKE ONTARIO SHORELINE BETWEEN HAMILITON AND TORONTO..AND ANOTHER INTENSE STORM WAS OVER EXTREME NORTHEAST OHIO..15 MILES NORTHEAST OF CLEVLAND. THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR. IF THREATENING WEATHER APPROACHES SEEK SHELTER IMMEDIATELY. GJ
Special weather statement, May 30, 3:04 PM EDT, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 250 PM EDT SAT MAY 30 1987 ... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE WESTERN FINGER LAKES REGION..INCLUDING GREATER ROCHESTER IN MONROE COUNTY... THIS WATCH IS IN EFFECT UNTIL 10 PM AND INCLUDES ADJACENT WATERS OF LAKE ONTARIO ALONG MONROE AND WAYNE COUNTIES. HEAVY RAIN...POSSIBLY SOME HAIL AND STRONG GUSTY WINDS AND FREQUENT LIGHTNING CAN BE EXPECTED AS STORMS MOVE THROUGH THE AREA. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. BE PREPARED FOR THREATENING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS...
Special weather statement, May 30, 3:47 PM EDT, 53 minutes before
BUFFALO SPECIAL WEATHER AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 345 PM EDT SAT MAY 30 1987 DO NOT USE AFTER 500 PM ...SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FRO NIAGARA COUNTY... ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM EDT FOR ALL OF WESTERN AND PORTIONS OF CENTRAL NEW YORK AND COASTAL WATERS... AT 335 PM...VERY STRONG THUNDERSTORMS WERE LOCATED OVER ONTARIO CANADA FROM PETERBOROUGH TO TORONTO AND WEST OF TORONTO TO KITCHENER AND NORTH OF LONDON. A STRONG THUNDERSTORM WAS OVER EXTREME WESTERN LAKE ONTARIO NORTHWEST OF ST CATHERINES ONTARIO. OTHER THUNDERSTORM SOME VERY HEAVY WERE OVER NORTHEASTERN OHIO INTO NORTHWESTERN PENNSYLVANIA NEAR MEADVILLE. T HE THUNDERSTORMS WERE MOVING EAST ABOUT 25 MPH. NO SEVERE WEATHER HAD BEEN REPORTED OVER WESTERN NEW YORK DURING THE PAST HOUR. IF THREATENING WEATHER IS OBSERVED MOVE TO A SAFE PLACE IMMEDIATELY. REICH
Special weather statement, May 30, 4:31 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 250 PM EDT SAT MAY 30 1987 ... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE WESTERN FINGER LAKES REGION..INCLUDING GREATER ROCHESTER IN MONROE COUNTY... THIS WATCH IS IN EFFECT UNTIL 10 PM AND INCLUDES ADJACENT WATERS OF LAKE ONTARIO ALONG MONROE AND WAYNE COUNTIES. OTHER COUNTIES AFFECTED INCLUDE LIVINGSTON..ONTARIO..SENECA..YATES..ORLEANS AND GENESEE. REMEMBER...A SEVERE THQUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. BE PREPARED FOR THREATENING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PRH
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 2:35 PM EDT | Severe Thunderstorm Warning | BUF | Niagara | 85 min |
| May 30, 4:30 PM EDT | Severe Thunderstorm Warning | BUF | Niagara, Orleans | 60 min |
| May 30, 5:20 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 60 min |
| May 30, 6:30 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 75 min |
Nearby
Severe Thunderstorm Warnings in New York, 1987Every severe thunderstorm warning in 1987
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.