Alert archive / New York / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 24, NWS Buffalo, NY

July 18, 1994Allegany County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 18, 1994, 1:53 PM EDT for Allegany County, New York. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1994, 1:53 PM EDT (17:53 UTC)
Expired
Jul 18, 1994, 3:00 PM EDT
In force
67 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Allegany County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.9 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.

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 181755 RRA
SVRBUF
NYC003-181900-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
153 PM EDT MON JUL 18 1994
 
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  NEW YORK
 
   ...ALLEGANY COUNTY
 
AT 155 PM BUFFALO WEATHER RADAR DETECTED A SEVERE THUNDERSTORM OVER
WESTERN ALLEGANY COUNTY JUST SOUTH OF CUBA. THIS THUNDERSTORM WAS MOVING
EAST AT 25 MILES AN HOUR AND SHOULD MOVE THROUGH BELMONT AND ANGELICA DU
NTHE NEXT HOUR. SOME TREES WERE REPORTED DOWN IN THE TOWN OF HUMPHREY AS
THIS STORM MOVED THROUGH CATTARAUGUS COUNTY.
 
 
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, 10:30 AM EDT, 3 hours 23 minutes before
NYZ001-010-019-181600-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
1030 AM EDT MON JUL 18 1994

       ...THUNDERSTORMS WILL MOVE ACROSS THE AREA...

AT 1025 AM...A 20 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS...SOME
WITH VERY HEAVY RAIN...EXTENDED FROM NIAGARA FALLS...SOUTHWEST ACROSS
EASTERN LAKE ERIE...TO ERIE PENNSYLVANIA. THE MOST POTENT STORM...WITH
TORRENTIAL RAIN...WAS OVER THE LAKE 10 MILES SOUTHWEST OF DOWNTOWN
BUFFALO. OTHER STORMS WERE 10 MILES WEST OF SILVER CREEK...AND NEAR
RIPLEY NEW YORK.

THE ACTIVITY WAS MOVING EAST NORTHEAST AT 20 MILES AN HOUR.

THESE STORMS WILL CROSS NIAGARA...ERIE...AND CHAUTAUQUA COUNTY BETWEEN
NOW AND NOON AND MAY BE ACCOMPANIED BY FREQUENT LIGHTNING...GUSTY WINDS...
AND TORRENTIAL DOWNPOURS WHICH MAY CAUSE FLOODING IN POOR DRAINAGE AREAS.
THE ACTIVITY SHOULD MOVE TO THE EAST WITH CLEARING SKIES EARLY THIS
AFTERNOON.

MCLAUGHLIN
Special weather statement, Jul 18, 10:38 AM EDT, 3 hours 15 minutes before
NYZ001-010-019-181600-

SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BUFFALO, NY
1030 AM EDT MON JUL 18 1994

       ...THUNDERSTORMS WILL MOVE ACROSS THE AREA...

AT 1025 AM...A 20 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS...SOME
WITH VERY HEAVY RAIN...EXTENDED FROM NIAGARA FALLS...SOUTHWEST ACROSS
EASTERN LAKE ERIE...TO ERIE PENNSYLVANIA. THE MOST POTENT STORM...WITH
TORRENTIAL RAIN...WAS OVER THE LAKE 10 MILES SOUTHWEST OF DOWNTOWN
BUFFALO. OTHER STORMS WERE 10 MILES WEST OF SILVER CREEK...AND NEAR
RIPLEY NEW YORK.

THE ACTIVITY WAS MOVING EAST NORTHEAST AT 20 MILES AN HOUR.

THESE STORMS WILL CROSS NIAGARA...ERIE...AND CHAUTAUQUA COUNTY BETWEEN
NOW AND NOON AND MAY BE ACCOMPANIED BY FREQUENT LIGHTNING...GUSTY WINDS...
AND TORRENTIAL DOWNPOURS WHICH MAY CAUSE FLOODING IN POOR DRAINAGE AREAS.
THE ACTIVITY SHOULD MOVE TO THE EAST WITH CLEARING SKIES EARLY THIS
AFTERNOON.

MCLAUGHLIN
Special weather statement, Jul 18, 1:30 PM EDT, 23 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, 13 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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 4:44 PM EDTSevere Thunderstorm WarningBUFCattaraugus61 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.