Alert archive / New York / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 5, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 7, 1989, 3:45 PM EDT for Genesee County, New York. It was in force for 105 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1989, 3:45 PM EDT (19:45 UTC)
- Expired
- Jul 7, 1989, 5:30 PM EDT
- In force
- 105 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
County Genesee 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, 7.8 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
- 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 071949 COR SVRBUF NYC037-072130- BULLETIN IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 345 PM EDT FRI JUL 7 1989 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING NEW YORK COUNTIES... GENESEE AT 345 PM...BUFFALO WEATHER RADAR SHOWED A SEVERE THUNDERSTORM LOCATED OVER WESTERN GENESEE COUNTY. THE THUNDERSTORM WAS MOVING EAST AT 25 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. IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. IN HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION. LEVAN
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, 1:22 PM EDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 115 PM EDT FRI JUL 07 1989 ...THUNDERSTORMS WITH HEAVY RAIN HAVE DEVELOPED IN THE WESTERN FINGER LAKES REGION... AT 115 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS HAVE DEVELOPED IN A LINE FROM SOUTHERN WAYNE COUNTY OF NEW YORK THROUGH SENECA AND YATES COUNTIES. VERY HEAVY RAINS ARE ASSOCIATED WITH THESE STORMS. THESE STORMS ARE MOVING SOUTHEAST AT 20 MILES AN HOUR AND MAY CONTAIN STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLY HAIL. IF THREATENING WEATHER APPROACHES ...TAKE COVER IMMEDIATELY HOULE
Special weather statement, Jul 7, 2:32 PM EDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER NY 230 PM EDT FRI JUL 07 1989 ...THUNDERSTORMS WITH HEAVY RAIN CONTINUE IN SOUTHERN SENECA AND YATES COUNTIES... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN SECTIONS OF THE WESTERN FINGER LAKES REGION UNTIL 8 PM THIS EVENING... THUNDERSTORMS IN YATES AND SENECA COUNTY MAY CONTAIN STRONG...GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLY HAIL. IF THREATENING WEATHER APPROACHES...TAKE COVER IMMEDIATELY. THUNDERSTORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. STORM SPOTTERS IN SENECA AND YATES COUNTIES HAVE REPORTED LIGHTNING AND HEAVY RAIN IN THUNDERSTORMS DURING THE PAST HOUR...BUT NO SEVERE WEATHER. ENGLISH '
Special weather statement, Jul 7, 2:45 PM EDT, 1 hour before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 240 PM EDT JUL 7 1989] DO NOT USE AFTER 4 PM ...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 8PM EDT FOR PORTIONS OF THE FINGER LAKES REGION AND THE CENTRAL SOUTHERN TIER... AT 230 PM...VERY HEAVY THUNDERSTORMS WERE OCCURRING OVER CAYUGA COUNTY AND OVER SOUTHERN ONTARIO 25 MILES EAST OF PETERBROUGH AND 15 MILES SOUTH OF KINGSTON. THESE STORMS MAY CONTAIN STRONG WIND7S...FREQUENT LIGHTNING AND HAIL. IF THREATENING WEATHER IS OBSERVED PEOPLE IN THE EFFECTED AREAS SHOULD SEEK SHELTER IN THE NEAREST BUILDING AS SOON AS POSSIBLE. DCB
Special weather statement, Jul 7, 2:48 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 240 PM EDT JUL 7 1989] DO NOT USE AFTER 4 PM ...SEVERE THUNDERSTORM WATCH IN EFFECT TIL 8PM EDT FOR PORTIONS OF THE FINGER LAKES REGION AND THE CENTRAL SOUTHERN TIER... AT 230 PM...VERY HEAVY THUNDERSTORMS WERE OCCURRING OVER CAYUGA COUNTY AND OVER SOUTHERN ONTARIO 25 MILES EAST OF PETERBROUGH AND 15 MILES SOUTH OF KINGSTON. THESE STORMS MAY CONTAIN STRONG 8WINDS...FREQUENT LIGHTNING AND HAIL. IF THREATENING WEATHER IS OBSERVED PEOPLE IN THE EFFECTED AREAS SHOULD SEEK SHELTER IN THE NEAREST BUILDING AS SOON AS POSSIBLE. THESE STORMS WERE MOVING SOUTHEAST AT 25 MILES PER HOUR. DCB
Special weather statement, Jul 7, 2:52 PM EDT, 53 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, 30 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
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, 6:30 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 60 min |
| Jul 7, 7:30 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.