Alert archive / New York / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 25, NWS Buffalo, NY

July 18, 1994Cattaraugus County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 18, 1994, 4:44 PM EDT for Cattaraugus County, New York. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1994, 4:44 PM EDT (20:44 UTC)
Expired
Jul 18, 1994, 5:45 PM EDT
In force
61 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Cattaraugus County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.7 hours before the alert went out and 76 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 1994-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 59 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 1994-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
59 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1379 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBUF 182045 RRA
SVRBUF
NYC009-182145-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
444 PM EDT MON JUL 18 1994
 
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  NEW YORK
 
   ...CATTARAUGUS COUNTY
 
AT 445 PM BUFFALO WEATHER RADAR DETECTED A SEVERE THUNDERSTORM OVER
NORTHERN CATTARAUGUS COUNTY BETWEEN ELLICOTTVILLE AND JUST NORTHWEST OF
FRANKLINVILLE. THIS STORM WAS MOVING EAST AT 25 MILES AN HOUR.
 
 
BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY FREQUENT
LIGHTNING...STRONG DAMAGING WINDS AND LARGE HAIL.  LOCALLY HEAVY
RAIN MAY ALSO CAUSE DRAINAGE FLOODING.
 
PACE

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 18, 1:30 PM EDT, 3 hours 14 minutes before
NYZ003-009-013-021-181900-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
130 PM EDT MON JUL 18 1994

...THUNDERSTORMS WERE MOVING INTO THE GENESEE VALLEY...

AT 125 PM...SHOWERS AND THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...
EXTENDED FROM EASTERN CATTARAUGUS COUNTY...NORTHEAST DOWN THE GENESEE
VALLEY TO SOUTHERN MONROE COUNTY JUST SOUTH OF ROCHESTER. STORMS WITH
VERY HEAVY RAIN WERE NEAR ELLICOTTVILLE AND FRANKLINVILLE...WITH ANOTHER
STORM HAVING DEVELOPED RAPIDLY NEAR CHURCHVILLE. THIS STORM WILL MOVE
ACROSS GREATER ROCHESTER WITHIN THE HOUR...ACCOMPANIED BY TORRENTIAL
DOWNPOURS.

OTHER STORMS WERE ACROSS NORTHWEST PENNSYLVANIA AND JUST EAST OF ELMIRA.

MOVEMENT OF ALL ACTIVITY WAS EAST AT 25 MILES AN HOUR. THUNDERSTORMS WILL
MOVE INTO ALLEGANY AND LIVINGSTON COUNTIES WITHIN THE HOUR AND WILL
BE ACCOMPANIED BY FREQUENT LIGHTNING AND TORRENTIAL DOWNPOURS WHICH CAN
CAUSE FLOODING IN POOR DRAINAGE AREAS.

MCLAUGHLIN
Special weather statement, Jul 18, 1:40 PM EDT, 3 hours 4 minutes before
NYZ003-009-013-021-181900-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
130 PM EDT MON JUL 18 1994

...THUNDERSTORMS WERE MOVING INTO THE GENESEE VALLEY...

AT 125 PM...SHOWERS AND THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...
EXTENDED FROM EASTERN CATTARAUGUS COUNTY...NORTHEAST DOWN THE GENESEE
VALLEY TO SOUTHERN MONROE COUNTY JUST SOUTH OF ROCHESTER. STORMS WITH
VERY HEAVY RAIN WERE NEAR ELLICOTTVILLE AND FRANKLINVILLE...WITH ANOTHER
STORM HAVING DEVELOPED RAPIDLY NEAR CHURCHVILLE. THIS STORM WILL MOVE
ACROSS GREATER ROCHESTER WITHIN THE HOUR...ACCOMPANIED BY TORRENTIAL
DOWNPOURS.

OTHER STORMS WERE ACROSS NORTHWEST PENNSYLVANIA AND JUST EAST OF ELMIRA.

MOVEMENT OF ALL ACTIVITY WAS EAST AT 25 MILES AN HOUR. THUNDERSTORMS WILL
MOVE INTO ALLEGANY AND LIVINGSTON COUNTIES WITHIN THE HOUR AND WILL
BE ACCOMPANIED BY FREQUENT LIGHTNING AND TORRENTIAL DOWNPOURS WHICH CAN
CAUSE FLOODING IN POOR DR^AINAGE AREAS.

MCLAUGHLIN
Special weather statement, Jul 18, 4:25 PM EDT, 19 minutes before
NYZ003-009-013-021-182200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
425 PM EDT MON JUL 18 1994

...THUNDERSTORMS WERE MOVING OVER SOUTHERN ERIE COUNTY...

AT 425 PM...A THUNDERSTORM WITH VERY HEAVY RAIN...HAIL AND STRONG
GUSTY WINDS WAS OVER SPRINGVILLE IN EXTREME SOUTHERN ERIE COUNTY. A
THUNDERSTORM ALSO WITH VERY HEAVY RAIN WAS JUST SOUTH OF BATH IN STEUBEN
COUNTY. HEAVY SHOWERS WERE SCATTERED ACROSS CATTARAUGUS COUNTY...THE
FINGER LAKES REGION...OVER THE ELMIRA AREA AND JUST EAST AND SOUTHWEST
OF LONDON ONTARIO.

MOVEMENT WAS EAST AT 25 MILES AN HOUR.

THE STORM OVER SPRINGVILLE IS CAPABLE OF PRODUCING DOWNPOURS THAT MAY
CAUSE FLOODING IN POOR DRAINAGE AREAS. LIKEWISE FOR THE STORM OVER BATH.
MOST OF THE REST OF WESTERN NEW YORK WILL BE UNDER VARIABLY CLOUDY SKIES
WITH TEMPERATURES IN THE UPPER 70S TO MID 80S ACCOMPANIED BY HIGH
HUMIDITIES. WINDS WILL BE LIGHT...MAINLY FROM THE SOUTHWEST.

PUKAJLO
Special weather statement, Jul 18, 4:27 PM EDT, 17 minutes before
NYZ010-020-12-182200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO, NY
425 PM EDT MON JUL 18 1994

...THUNDERSTORMS SOUTH OF BUFFALO...

AT 425 PM...STRONG THUNDERSTORMS WERE OVER SOUTHERN ERIE COUNTY
NEAR SPRINGVILLE AND OVER NORTHERN CATTARAUGUS COUNTY NORTHWEST OF
FRANKLINVILLE. THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR.
THES THUNDERSTORMS CONTAIN VERY HEAVY RAIN WHICH MAY CAUSE DRAINAGE
FLOODING...FREQUENT LIGHTNING AND POSSIBLY HAIL AND GUSTY WINDS.

THESE STORMS WILL MOVE TO NEAR ARCADE IN WYOMING COUNTY AND NORTHEAST
CATTARAUGUS COUNTY DURING THE NEXT HOUR.

PACE
Special weather statement, Jul 18, 4:32 PM EDT, 12 minutes before
NYZ003-009-013-021-182200-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
425 PM EDT MON JUL 18 1994

...THUNDERSTORMS WERE MOVING OVER SOUTHERN ERIE COUNTY...

AT 425 PM...A THUNDERSTORM WITH VERY HEAVY RAIN...HAIL AND STRONG
GUSTY WINDS WAS OVER SPRINGVILLE IN EXTREME SOUTHERN ERIE COUNTY. A
THUNDERSTORM ALSO WITH VERY HEAVY RAIN WAS JUST SOUTH OF BATH IN STEUBEN
COUNTY. HEAVY SHOWERS WERE SCATTERED ACROSS CATTARAUGUS COUNTY...THE
FINGER LAKES REGION...OVER THE ELMIRA AREA AND JUST EAST AND SOUTHWEST
OF LONDON ONTARIO.

MOVEMENT WAS EAST AT 25 MILES AN HOUR.

THE STORM OVER SPRINGVILLE IS CAPABLE OF PRODUCING DOWNPOURS THAT MAY
CAUSE FLOODING IN POOR DRAINAGE AREAS. LIKEWISE FOR THE STORM OVER BATH.
MOST OF THE REST OF WESTERN NEW YORK WILL BE UNDER VARIABLY CLOUDY SKIES
WITH TEMPERATURES IN THE UPPER 70S TO MID 80S ACCOMPANIED BY HIGH
HUMIDITIES. WINDS WILL BE LIGHT...MAINLY FROM THE SOUTHWEST.

PUKAJLO

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 18, 1:53 PM EDTSevere Thunderstorm WarningBUFAllegany67 min

Nearby

Severe Thunderstorm Warnings in New York, 1994Every severe thunderstorm warning in 1994

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.