Alert archive / New York / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 18, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Sep 11, 1987, 6:45 PM EDT for Cattaraugus County, Erie County, Wyoming County, New York. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Sep 11, 1987, 6:45 PM EDT (22:45 UTC)
- Expired
- Sep 11, 1987, 7:45 PM EDT
- In force
- 60 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
Counties Cattaraugus County, NY, Erie County, NY, Wyoming 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 12:00Z, 10.8 hours before the alert went out and 42 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1492 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 39 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, Sep 11, 3:44 PM EDT, 3 hours 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 340PM EDT FRI SEP 11 1987 STRONG THUNDERSTORMS ALONG THE CHAUTAUQUA COUNTY SHORES OF LAKE ERIE... AT 335PM... BUFFALO WEATHER RADAR OBSERVED STRONG THUNDERSTORMS OVER LAKE ERIE BETWEEN ERIE PENNSYLVANIA AND WESTFIELD NEW YORK. SOME OF THESE STORMS MAY CONTAIN FREQUENT LIGHTNING... GUSTY WINDS... HEAVY RAIN AND POSSIBLY HAIL. THESE STORMS COULD AFFECT PORTIONS OF CHAUTAUQUA AND SOUTHERN ERIE COUNTIES DURING THE NEXT HOUR. ANOTHER HEAVY THUNDERSTORM WAS JUST WEST OF NIAGARA FALLS. SHOWERS AND SCATTERED THUNDERSTORMS CONTINUED OVER ONTARIO BETWEEN LONDON AND LAKE SIMCOE... AND OVER PORTIONS OF NORTHWEST PENNSYLV}ANIA AND NORTHEAST OHIO. THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR. WEBBER
Special weather statement, Sep 11, 4:48 PM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 445PM EDT FRI SEP 11 1987 STRONG THUNDERSTORMS ACROSS PORTIONS OF WESTERN NEW YORK AND NORTHWEST PENNSYLVANIA... AT 435PM... BUFFALO WEATHER RADAR OBSERVED STRONG THUNDERSTORMS OVER LAKE ERIE ABOUT 10 MILES NORTHWEST OF SILVER CREEK. A PILOT REPORTED SOME HAIL WITH THIS STORM AT ABOUT 415PM. OTHER STRONG THUNDERSTORMS WERE OVER SOUTHEASTERN NIAGARA COUNTY... ABOUT 7 MILES SOUTHWEST OF BROCKPORT... AND NEAR ERIE PENNSYLVANIA. SOME OF THESE THUNDERSTORMS MAY CONTAIN FREQUENT LIGHTNING... GUSTY WINDS... HEAVY DOWNPOURS WHICH MAY CAUSE POOR DRAINAGE FLOODING AND POSSIBLY HAIL. THE THUNDERSTORMS MAY MOVE INTO PORTIONS OF CHAUTAUQUA AND ERIE COUNTIES DURONG THE NEXT HOUR. THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR. SHOULD THREATENING WEATHER APPROACH GO TO A PLACE OF SAFETY IMMEDIATELY. WEBBER
Special weather statement, Sep 11, 4:48 PM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 448 PM EDT FRI SEP 11 1987 ...THUNDERSTORM MOVING INTO MONROE COUNTY AN ISOLATED THUNDERSTORM IS MOVING ACROSS NORTHWESTERN MONROE COUNTY AND IS MOVING NORTHEASTWARD AT 25 MPH. THIS THUNDERSTORM IS EXPECTED TO MOVE OVER BROCKPORT AND THEN OVER LAKE ONTARIO DURING THE NEXT 15 TO 30 MINUTES. $$REC
Special weather statement, Sep 11, 6:00 PM EDT, 45 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 555PM EDT FRI SEP 11 1987 SEVERE THUNDERSTORM WARNING IN EFFECT UNTIL 640PM EDT FOR CHAUTUAUQUA CATTARAUGUS... AND SOUTHERN ERIE COUNTIES AND THE ADJACENT WATERS OF LAKE ERIE... AT 535PM... BUFFALO WEATHER RADAR OBSERVED SEVERE THUNDERSTORMS OVER NORTHWEST CHAUTUAUQUA COUNTY NEAR WESTFIELD AND JUST SOUTH OF JAMESTOWN NEAR THE NEW YORK/PENNSYLVANIA BORDER. TREES WERE REPORTED DOWN NEAR SHERMAN AND DEWITTVILLE IN CHAUTAUQUA COUNTY SHORTLY AFTER 530PM. OTHER SHOWERS AND THUNDERSTORMS WERE BETWEEN DUNKIRK AND ROCHESTER... NEAR TORONTO... AND OVER MUCH OF NORTHWEST PENNSYLVANIA. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR. SOME OF THESE THUNDERSTORMS MAY PRODUCE FREQUENT LIGHTNING.... STRONG DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY RAIN MAY ALSO CAUSE SOME POOR DRAINAGE FLOODING. SHOULD THREATENING WEATHER APPROACH... GO TO A PLACE OF SAFETY IMMEDIATELY. WEBBER
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 5:40 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 60 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.