Alert archive / New York / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 30, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 31, 1993, 5:00 PM EDT for Erie County, Genesee County, New York. It was in force for 90 min.
The area
The counties it named.
The facts
- Issued
- Aug 31, 1993, 5:00 PM EDT (21:00 UTC)
- Expired
- Aug 31, 1993, 6:30 PM EDT
- In force
- 90 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
Counties Erie County, NY, Genesee County, NY
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.0 hours before the alert went out and 18 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
- 2434 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBUF 312101 RRA
SVRBUF
NYC029-037-073-312230-
BULLETIN EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
500 PM EDT TUE AUG 31 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING NEW YORK
COUNTIES...
NORTHERN ERIE...GENESEE..AND ORLEANS
AT 500 BUFFALO RADAR SHOWED A LINE OF STRONG THUNDERSTORMS EXTENDING
ALONG NORTHERN ERIE COUNTY INTO PARTS OF GENESEE AND ORLEANS COUNTIES.
THE THUNDERSTORMS WERE MOVING EAST AT 35 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. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY.
IN HOMES...A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION.
MOBILE HOMES AND AUTOS OFFER LITTLE SHELTER FROM TORNADOES.
THIS WARNING IS IN EFFECT UNTIL 630 PM EDT.
LEVANWhat 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, Aug 31, 1:40 PM EDT, 3 hours 20 minutes before
NYZ001-021-022-002-003-004-005-311840- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 140 PM EDT TUE AUG 31 1993 ...A TORNADO WATCH IS IN EFFECT FOR ALL OF WESTERN NEW YORK UNTIL 800 PM... AT 130 PM...A 15 MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS...SOME WITH FREQUENT LIGHTNING AND HEAVY DOWNPOURS EXTENDED FROM ATTICA NORTHEAST ACROSS MONROE COUNTY INCLUDING ROCHESTER TO WESTERN WAYNE COUNTY. SHOWERS AND THUNDERSTORMS WERE ALSO OVER WESTERN LAKE ONTARIO JUST OFF THE SHORE OF NIAGARA AND ORLEANS COUNTIES. SHOWERS AND THUNDERSTORMS WERE ALSO SCATTERED OVER NORTHWEST PENNSYLVANIA AND IN SOUTHERN ONTARIO BETWEEN LAKE SIMCOE AND PETERBOROUGH. ALL ACTIVITY WAS MOVING NORTHEAST AT 35 MILES AN HOUR. RRM
Special weather statement, Aug 31, 1:43 PM EDT, 3 hours 17 minutes before
NYZ001-021-022-002-003-004-005-311840- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 140 PM EDT TUE AUG 31 1993 ...A TORNADO WATCH IS IN EFFECT FOR ALL OF WESTERN NEW YORK UNTIL 800 PM... AT 130 PM...A 15 MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS...SOME WITH FREQUENT LIGHTNING AND HEAVY DOWNPOURS EXTENDED FROM ATTICA NORTHEAST ACROSS MONROE COUNTY INCLUDING ROCHESTER TO WESTERN WAYNE COUNTY. SHOWERS AND THUNDERSTORMS WERE ALSO OVER WESTERN LAKE ONTARIO JUST OFF THE SHORE OF NIAGARA AND ORLEANS COUNTIES. SHOWERS AND THUNDERSTORMS WERE ALSO SCATTERED OVER NORTHWEST PENNSYLVANIA AND IN SOUTHERN ONTARIO BETWEEN LAKE SIMCOE AND PETERBOROUGH. ALL ACTIVITY hWAS MOVING NORTHEAST AT 35 MILES AN HOUR. RRM
Special weather statement, Aug 31, 1:57 PM EDT, 3 hours 3 minutes before
NYZ002-311900- SPECIAL WEATHER STATEMENT...THUNDERSTORMS NATIONAL WEATHER SERVICE ROCHESTER NY 145 PM EDT TUE AUG 31 1993 ...STRONG THUNDERSTORMS MOVING THROUGHT THE WESTERN FINGER LAKES REGION... AT 142 PM WEATHER SERVICE RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM GENESEO TO NORTHWEST OF OSWEGO. THE STRONGEST STORMS EXTENDED FROM RUSH IN SOUTHERN MONROE COUNTY NORTHEAST TO PULTNEYVILLE IN NORTHERN WAYNE COUNTY. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 35 MPH AND WILL BE MOVING THROUGH WAYNE AND ONTARIO COUNTIES DURING THE NEXT HOUR. BE ON THE LOOKOUT FOR THUNDERSTORMS THAT MAY HAVE GUSTY WINDS FREQUENT LIGHTNING AND POSSIBLE HAIL. HEAVY DOWNPOURS MAY CAUE POOR DRAINAGE FLOODING. KB
Special weather statement, Aug 31, 4:29 PM EDT, 31 minutes before
NYZ002-312200- SPECIAL WEATHER STATEMENT...THUNDERSTORMS NATIONAL WEATHER SERVICE ROCHESTER NY 425 PM EDT TUE AUG 31 1993 ...STRONG THUNDERSTORMS MOVING INTO SOUTHERN YATES COUNTY.... AT 422 PM WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS EXTENDING FROM PENN YAN SOUTHWEST TO BRADFORD PENNSYLVANIA. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 35 MPH AND WILL BE MOVING THROUGH YATES COUNTY DURING THE NEXT HOUR. THUNDERSTORMS WILL BE ENTERING SENECA COUNTY BY 5 PM. THESE THUNDERSTORMS HAVE A HISTORY OF STRONG WINDS AND SOME HAIL. IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. KB
Special weather statement, Aug 31, 4:45 PM EDT, 15 minutes before
NYZ001-021-022-002-003-004-005-312200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 445 PM EDT TUE AUG 31 1993 ...A TORNADO WATCH IS IN EFFECT FOR ALL OF WESTERN NEW YORK UNTIL 800 PM... AT 430 PM...A LINE OF THUNDERSTORMS...SOME SEVERE...CONTINUE TO MOVE TO THE EAST AT 35 MILES AN HOUR. THE STRONGEST THUNDERSTORMS WERE MOVING INTO YATES AND STEUBEN COUNTIES WITH A SEVERE THUNDERSTORM WARNING OUT FRO STEUBEN COUNTY UNTIL 515 PM. THESE THUNDERSTORMS CONTINUE TO PRODUCE TORRENTIAL RAINS...AND ARE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL AND DANGEROUS LIGHTNING. ELSEWHERE...THUNDERSTORMS WITH VERY HEAVY RAIN AND GUSTY WINDS WERE OVER ORLEANS AND NORTHERN GENESEE COUNTY. THESE STORMS WERE MOVING EAST AT 35 MILES AN HOUR AS WELL. IF YOU ARE IN THE PATH OF ONE OF THESE STORMS...TAKE SHELTER IMMEDIATELY. GO TO A BASEMENT OR INTERIOR ROOM AND STAY AWAY FROM WINDOWS. DEG
Special weather statement, Aug 31, 4:46 PM EDT, 14 minutes before
NYZ001-021-022-002-003-004-005-312200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BUFFALO NY 445 PM EDT TUE AUG 31 1993 ...A TORNADO WATCH IS IN EFFECT FOR ALL OF WESTERN NEW YORK UNTIL 800 PM... AT 430 PM...A LINE OF THUNDERSTORMS...SOME SEVERE...CONTINUE TO MOVE TO THE EAST AT 35 MILES AN HOUR. THE STRONGEST THUNDERSTORMS WERE MOVING INTO YATES AND STEUBEN COUNTIES WITH A SEVERE THUNDERSTORM WARNING OUT FRO STEUBEN COUNTY UNTIL 515 PM. THESE THUNDERSTORMS CONTINUE TO PRODUCE TORRENTIAL RAINS...AND ARE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL AND DANGEROUS LIGHTNING. ELSEWHERE...THUNDERSTORMS WITH VERY HEAVY RAIN AND GUSTY WINDS WERE OVER ORLEANS AND NORTHERN GENESEE COUNTY. THESE STORMS WERE MOVING EAST AT 35 MILES AN HOUR AS WELL. IF YOU ARE IN THE PATH OF ONE OF THESE STORMS...TAKE SHELTER IMMEDIATELY. GO TO A BASEMENT OR INTERIOR ROOM AND STAY AWAY FROM WINDOWS. DEG
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 1:57 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 93 min |
| Aug 31, 2:35 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus | 85 min |
| Aug 31, 3:10 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 80 min |
| Aug 31, 5:00 PM EDT | Severe Thunderstorm Warning | BUF | Orleans | 90 min |
Nearby
Severe Thunderstorm Warnings in New York, 1993Every severe thunderstorm warning in 1993
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.