Alert archive / New York / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 7, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 7, 1989, 7:30 PM EDT for Allegany County, New York. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1989, 7:30 PM EDT (23:30 UTC)
- Expired
- Jul 7, 1989, 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.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.5 hours before the alert went out and 93 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
- 637 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 836 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBUF 072330 SVRBUF NYC003-080030- BULLETIN IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 730 PM EDT FRI JUL 7 1989 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING NEW YORK COUNTIES... ALLEGANY AT 730 PM...BUFFALO WEATHER RADAR SHOWED A SEVERE THUNDERSTORM LOCATED JUST NORTHEAST OF BELMONT. THE THUNDERSTORM WAS MOVING SOUTH SOUTHEAST AT 25 MPH. A REPORT RECEIVED FROM THE ALLEGANY COUNTY SHERIFF INDICATED THAT A FEW TREES WERE BLOWN DOWN IN ANGELICA AND BELMONT AS THE STORM PASSED THROUGH THOSE VILLAGES. BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT LIGHTNING... STRONEG 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. REMINGTON
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 7, 2:52 PM EDT, 4 hours 38 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 250 PM EDT JUL 7 1989] DO NOT USE AFTER 330 PM EDT ...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 8PM EDT FOR PORTIONS OF THE FINGER LAKES REGION AND THE CENTRAL SOUTHERN TIER... AT 250 PM...BUFFALO WEATHER RADAR OBSERVED A HEAVY THUNDERSTORM IN THE NIAGARA FALLS AREA INCLUDING PART OF GRAND ISLAND NEW YORK AND ONTARIO CANADA BETWEEN WELLAND...THOROLD AND THE FALLS. THE THUNDERSTORM MAY CONTAIN VERY HEAVY DOWNPOURS PRODUCING LOCAL POOR DRAINAGE FLOODING...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE HAIL. THE THUNDERSTORM DEVELOPED DURING THE LAST HALF HOUR. IF THREATENING WEATHER IS OBSERVED PEOP<LE IN THE EFFECTED AREAS SHOULD SEEK SHELTER IN THE NEAREST BUILDING AS SOON AS POSSIBLE. EGR
Special weather statement, Jul 7, 3:15 PM EDT, 4 hours 15 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY UPDATED NATIONAL WEATHER SERVICE BUFFALO NY 315 PM EDT JUL 7 1989] DO NOT USE AFTER 340 PM EDT ...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 8PM EDT FOR PORTIONS OF THE FINGER LAKES REGION AND THE CENTRAL SOUTHERN TIER... AT 315 PM...BUFFALO WEATHER RADAR OBSERVED A HEAVY THUNDERSTORM FROM NIAGARA FALLS AREA INCLUDING PART OF GRAND ISLAND NEW YORK AND PORTIONS OF NORTHERN ERIE AND SOUTHERN NIAGARA COUNTIES. THE THUNDERSTORM MAY CONTAIN VERY HEAVY DOWNPOURS PRODUCING LOCAL POOR DRAINAGE FLOODING...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE HAIL. THE THUNDERSTORM WAS MOVING SOUTHEAST ABPUT 15 MPH. IF THREATENING WEATHER IS OBSE[RVED PEOPLE IN THE EFFECTED AREAS SHOULD SEEK SHELTER IN THE NEAREST BUILDING AS SOON AS POSSIBLE. EGR
Special weather statement, Jul 7, 4:19 PM EDT, 3 hours 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 420 PM EDT FRI JUL 07 1989 ...THUNDERSTORMS...SOME WITH HEAVY RAIN WERE SCATTERED FROM NORTHERN LIVINGSTON TO SOUTHERN SENECA COUNTIES... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN SECTIONS OF THE WESTERN FINGER LAKES REGION UNTIL 8 PM THIS EVENING... ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR GENESEE COUNTY UNTIL 530 PM... THUNDERSTORMS MOVING INTO NORTHWEST LIVINGSTON COUNTY MAY CONTAIN STRONG WINDS...DANGEROUS LIGHTNING AND POSSIBLY HAIL. IF THREATENING WEATHER APPROACHES...TAKE COVER IMMEDIATELY. THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. ENGLISH
Special weather statement, Jul 7, 5:10 PM EDT, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 510 PM EDT FRI JUL 07 1989 ...THUNDERSTORM...WITH HEAVY RAIN ENTERING PENN YAN NEW YORK IN YATES COUNTY... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN SECTIONS OF THE WESTERN FINGER LAKES REGION UNTIL 8 PM THIS EVENING... ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR GENESEE COUNTY UNTIL 530 PM... THUNDERSTORM MOVING THROUGH SOUTHERN ONTARIO COUNTY INTO NORTHERN YATES COUNTY IS PRODUCING HEAVY RAINS. THIS STORM MAY PRODUCE STRONG GUSTY WINDS ...DANGEROUS LIGHTNING AND POSSIBLY HAIL. IF THREATENING WEATHER APPROACHES...TAKE COVER IMMEDIATELY. THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. HOULE
Special weather statement, Jul 7, 5:45 PM EDT, 1 hour 45 minutes before
BULLETIN SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 540 PM EDT FRI JUL 7 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 800PM EDT FOR PORTIONS OF THE FINGER LAKES REGION AND THE CENTRAL SOUTHERN TIER... AT 540 PM...BUFFALO WEATHER RADAR SHOWED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...SOUTH OF BUFFALO...EXTENDING FROM HAMBURG TO WARSAW IN WYOMING COUNTY. OTHER THUNDERSTORMS WERE OVER THE FINGER LAKES REGION FROM CANANDAIGUA LAKE EASTWARD TO CORTLAND...WITH HEAVIEST ACTIVITY NEAR PENN YAN. ELSEWHERE...A LINE OF THUNDERSTORMS EXTENDED OVER NORTHWEST PENNSYLVANIA FROM YOUNGSTOWN OHIO TO NORTH OF WILLIAMSPORT...WITH HEAVIEST ACTIVITY NEAR BROOKVILLE. INDIVIDUAL CELLS WERE MOVING TO THE SOUTHEAST AT 20 MILES AN HOUR. BE ON THE ALERT FOR THREATENING WEATHER AND LISTEN FOR FURTHER STATEMENT AND WARNINGS. NIZIOL
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 3:30 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 2 hr |
| Jul 7, 3:45 PM EDT | Severe Thunderstorm Warning | BUF | Genesee | 105 min |
| Jul 7, 6:30 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 60 min |
Nearby
Severe Thunderstorm Warnings in New York, 1989Every severe thunderstorm warning in 1989
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.