Alert archive / New York / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 15, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 30, 1987, 7:30 PM EDT for Allegany County, New York. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 30, 1987, 7:30 PM EDT (23:30 UTC)
- Expired
- Jul 30, 1987, 8:30 PM EDT
- In force
- 60 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 30, 7:45 PM EDT | Hail 0.75 | Allegany, NY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.5 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
- 42 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1453 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 126 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 KBUF 302335 RRA SVRBUF NYC003-300030- BULLETIN IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 730 PM EDT THU JUL 30 1987 THE NATIONAL WEATHER SERVICE HAS CONTINUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES IN WESTERN NEW YORK...SOUTHERN ALLEGANY AT 730 PM EDT BUFFALO RADAR INDICATED A SEVERE THUNDERSTORM OVER CENTRAL ALLEGANY COUNTY WITH ANOTHER HEAVY THUNDERSTORM IN THE ISHUA VALLEY. THE THUNDERSTORMS WERE MOVING SOUTHEAST ABOUT 40 MPH. BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT LIGHTNING.. STRONG DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY RAIN MAY ALSO CAUSE DRAINAGE FLOODING. HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION. REMEMBER A SEVERE THUNDERSTORM MAY PRODUCE TORNADOES. REICH
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, Jul 30, 1:39 PM EDT, 5 hours 51 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 135 PM EDT THU JUL 30 1987 AT 130 PM BUFFALO WEATHER RADAR DETECTED A STRONG THUNDERSTORM OVER CENTRAL CATTARAUGUS COUNTY...JUST NORTHWEST OF SALAMANCA. PEA SIZED HAIL...HEAVY RAIN AND WINDS OF 30 TO 40 MILES AN HOUR WERE REPORTED WITH THIS STORM AS IT MOVED THROUGH LITTLE VALLEY. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MILES AN HOUR. OTHER SHOWERS AND THUNDERSTORMS WERE OVER THE NORTH SHORE OF LAKE ERIE BETWEEN LONG POINT AND PORT COLBORNE AND BETWEEN LONDON AND HAMILTON ONTARIO. SHOWERS AND THUNDERSTORMS WERE ALSO SCATTERED ALONG THE NORTH SHORE OF LAKE ONTARIO FROM TRENTON TO KINGSTON. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. PACE
Special weather statement, Jul 30, 2:53 PM EDT, 4 hours 37 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 245 PM EDT THU JUL 30 1987 AT 230 PM BUFFALO WEATHER RADAR DETECTED A SEVERE THUNDERSTORM OVER NIAGARA FALLS. HALF INCH HAIL...TORRENTIAL RAINS...WINDS OF 61 MPH AND FREQUENT LIGHTNING HAVE BEEN REPORTED AT NIAGARA FALLS AIRPORT. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MILES AN HOUR. OTHER THUNDERSTORMS WERE OVER THE NIAGARA PENINSULA BETWEEN LONG POINT ...HAMILTON AND NIAGARA FALLS. SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER NORTHERN PENNSYLVANIA BETWEEN BRADFORD AND WILLIAMSPORT. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. PACE
Special weather statement, Jul 30, 4:10 PM EDT, 3 hours 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 408 PM EDT THU JUL 30 1987 ...SEVERE THUNDERSTORM WARNING EXPIRED FOR GENESEE COUNTY... AT 355 PM BUFFALO WEATHER RADAR INDICATED THUNDERSTORMS FROM BUFFALO...EAST TO GENEVA IN THE FINGER LAKES REGION. STRONG THUNDERSTORMS WERE BETWEEN ATTICA AND GENESEO. SOME OF THESE STORMS MAY HAVE GUSTY WINDS...FREQUENT LIGHTNING... AND POSSIBLY HAIL. HEAVY RAIN MAY CAUSE POOR DRAINAGE FLOODING. SHOWERS AND SCATTERED THUNDERSTORMS WERE ALSO OVER THE NIAGARA PENINSULA BETWEEN LONDON AND NIAGARA FALLS. ISOLATED SHOWERS WERE NEAR BRADFORD AND ERIE PENNSYLVANIA. THE SHOWERS AND THUNDERSTORMS WRE MOVING SOUTHEAST AT 25 MIDLES AN HOUR. PACE
Local storm report, Jul 30, 4:23 PM EDT, 3 hours 7 minutes before
^BUFLSRBUF
STORM REPORT UPDATE
NATIONAL WEATHER SERVICE BUFFALO NY
430 AM EDT THU JUL 30 1987
TIME EDT REPORT
249 PM EDT WIND GUSTS TO 61 MPH HAIL 1/2 INCH AT NIAGARA FALLS
AIRPORT.
P
310 PM EDT TREES DOWN ALONG ROUTE 63 AT ALABAMA IN GENESEE COUNTY.
332 PM EDT POWER LINES DOWN JUST NORTH OF DARIEN REPORTED BY
AMATEUR RADIO SPOTTER.
DUNHAMSpecial weather statement, Jul 30, 5:33 PM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 430 PM EDT THU JUL 30 1987 ...TORNADO WARNING FOR ERIE COUNTY EXPIRED AT 5PM... ...STRONG THUNDERSTORMS CONTINUE OVER SOUTHERN ERIE AND WYOMING COUNTIES... THE TORNADO WARNING FOR ERIE COUNTY EXPIRED AT 5PM. THE TORNADO TOUCHED DOWN IN THE BUFFALO SUBURB OF CHEEKTOWAGA SHORTLY AFTER 430 PM THIS AFTERNOON...WAS PROBABLY ON THE GROUND FOR ABOUT 10 MINUTES AND WITHDREW INTO THE CLOUDS. BUFFALO RADAR WAS STRUCK BY LIGHTENING ABOUT THE TIME THE TORNADO HIT AND IS CURRENTLY OUT OF SERVICE. ERIE RADAR IN ERIE PENNSYLVANIA AT 530 PM INDICATED HEAVY THUNDERSTORMS OVER SOUTHERN ERIE AND WYOMING COUNTIES. THUNDERSTORMS ALSO EXTEND EAST ACROSS THE FINGER LAKES TO YATES COUNTY. THE STORMS ARE MOVING SOUTHEAST AT ABOUT 30 MPH AND MAY CONTAIN HAIL STRONG WINDS AND TORRENTIAL DOWNPOURS. DUNHAM
Special weather statement, Jul 30, 5:39 PM EDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 530 PM EDT THU JUL 30 1987 (TIME CORRECTION) ...TORNADO WARNING FOR ERIE COUNTY EXPIRED AT 5PM... ...STRONG THUNDERSTORMS CONTINUE OVER SOUTHERN ERIE AND WYOMING COUNTIES... THE TORNADO WARNING FOR ERIE COUNTY EXPIRED AT 5PM. THE TORNADO TOUCHED DOWN IN THE BUFFALO SUBURB OF CHEEKTOWAGA SHORTLY AFTER 430 PM THIS AFTERNOON...WAS PROBABLY ON THE GROUND FOR ABOUT 10 MINUTES AND WITHDREW INTO THE CLOUDS. BUFFALO RADAR WAS STRUCK BY LIGHTENING ABOUT THE TIME THE TORNADO HIT AND IS CURRENTLY OUT OF SERVICE. ERIE RADAR IN ERIE PENNSYLVANIA AT 530 PM INDICATED HEAVY THUNDERSTORMS OVER SOUTHERN ERIE AND WYOMING COUNTIES. THUNDERSTORMS ALSO EXTEND EAST ACROSS THE FINGER LAKES TO YATES COUNTY. THE STORMS ARE MOVING SOUTHEAST AT ABOUT 30 MPH AND MAY CONTAIN HAIL STRONG WINDS AND TORRENTIAL DOWNPOURS. DUNHAM
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 2:35 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 55 min |
| Jul 30, 2:55 PM EDT | Severe Thunderstorm Warning | BUF | Genesee | 60 min |
| Jul 30, 4:35 PM EDT | Tornado Warning | BUF | Erie | 25 min |
| Jul 30, 6:05 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 85 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.