Alert archive / New York / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 18, NWS Buffalo, NY

June 15, 1991Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 15, 1991, 10:15 PM EDT for Erie County, New York. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 15, 1991, 10:15 PM EDT (02:15 UTC)
Expired
Jun 15, 1991, 11:15 PM EDT
In force
60 min
Issued by
NWS Buffalo, NY
Area
Whole counties

County Erie County, NY

What was reported inside it

TimeReportWhereRemark
Jun 15, 10:30 PM EDTThunderstorm Wind 0Erie, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.3 hours before the alert went out and 20 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 00:00Z on 1991-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1660 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 00:00Z on 1991-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 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
1660 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1230 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBUF 160221
SVRBUF
NYC029-160315-

BULLETIN -      EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1015 PM EDT SAT JUN 15 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1115 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

   IN THE STATE OF NEW YORK
      ERIE COUNTY AND ADJACENT WATERS OF LAKE ERIE

AT 1010 PM BUFFALO RADAR DETECTED A SEVERE THUNDERSTORM OVER SILVER
CREEK NEW YORK IN EXTREME NORTHWEST CHAUTAUQUA COUNTY. THE STORM WAS
MOVING NORTHEAST AT 35 MILES AN HOUR AND WILL MOVE INTO ERIE COUNTY
IN THE NEXT 10 MINUTES.

BE ON THE LOOKOUT 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.

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, Jun 15, 4:55 PM EDT, 5 hours 20 minutes before
NYZ001-021-022-002-003-004-005-152200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BUFFALO NY
450 PM EDT SAT JUN 15 1991

...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR ALL OF WESTERN
NEW YORK...

AT 430 PM...BUFFALO WEATHER RADAR OBSERVED AN AREA OF THUNDERSTORMS
WHICH EXTENDED FROM SYRACUSE... SOUTHWEST TO NEAR MEADVILLE PENNSYLVANIA.
COVERAGE IN WESTERN NEW YORK WAS MAINLY OVER STEUBEN COUNTY... AND OVER
SOUTHERN PORTIONS OF CATTARAUGUS AND ALLEGANY COUNTIES. ANOTHER STORM
WAS OVER CANADIAN WATERS OF LAKE ONTARIO SOUTH OF BOWMANVILLE... AND
ANOTHER WAS NEAR HAMILTON ONTARIO.

SOME OF THE THUNDERSTORMS MAY CONTAIN FREQUENT LIGHTNING... STRONG GUSTY
WINDS... VERY HEAVY RAINS WHICH MAY CAUSE POOR DRAINAGE FLOODING... AND
POSSIBLY HAIL. THE STRONGEST STORMS WERE OVER SOUTHERN ONONDAGA COUNTY...
NEAR WEST CAMERON IN STEUBEN COUNTY... ALONG THE STATE LINE SOUTH OF
WELLSVILLE...NEAR BRADFORD...AND 10 MILES NORTH OF TIONESTA PENNSYLVANIA.
.
THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR.

AT 315 PM SKYWARN AMATEUR RADIO SPOTTERS REPORTED 45 TO 50 MILES AN
HOUR WINDS ABOUT 3/4 MILES NORTH OF JAMESTOWN... AND AT 320 PM POWER
LINES WER-E REPORTED DOWN ON CHANDLER STREET IN THE CITY OF JAMESTOWN.
THERE HAVE BEEN NUMEROUS REPORTS OF POWER OUTAGES IN THE JAMESTOWN AREA.

STAY TUNED TO THIS STATION OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.

WEBBER
Local storm report, Jun 15, 7:00 PM EDT, 3 hours 15 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
700 PM EDT SAT JUN 15 1991

245 PM EDT   MARBLE SIZED HAIL...TOWN OF HARMONY IN CHAUTAUQUA COUNTY.
             REPORTED BY COUNTY HIGHWAY SUPINTENDENT.

305 PM EDT   MARBLE SIZED HAIL WITH WIND GUSTS 40 MPH+ AND 1 INCH OF
             RAIN IN 25 MIN...6 MILES WEST OF JAMESTOWN IN CHAUTAUQUA
             COUNTY. REPORTED BY COOP OBSERVER IN VILLAGE OF ASHVILLE.

315 PM EDT   45-50 MPH WINDS BROUGHT DOWN A FEW SMALL TREE LIMBS...3/4
             OF A MILE NORTH OF DOWNTOWN JAMESTOWN IN CHAUTAUQUA COUNTY.
             REPORTED BY HAM RADIO OPERATOR IN JAMESTOWN.

320 PM EDT   POWER LINES DOWN ON CHANDLER STREET IN CITY OF JAMESTOWN IN
             CHAUTAUQUA COUNTY. REPORTED BY SKYWARN OBSERVER.

REMINGTON
Special weather statement, Jun 15, 7:48 PM EDT, 2 hours 27 minutes before
NYZ001-021-022-002-003-004-005-160100-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BUFFALO NY
745 PM EDT SAT JUN 15 1991

...SEVERE THUNDERSTORMS OVER NEARBY SOUTHERN ONTARIO MAY BRUSH NIAGARA
AND ORLEANS COUNTIES...

AT 730 PM...BUFFALO WEATHER RADAR OBSERVED AN AREA OF SEVERE
THUNDERSTORMS FROM TORONTO... ACROSS THE WESTERN END OF LAKE ONTARIO TO
NEAR HAMILTON. DANGEROUS LIGHTNING... STRONG DAMAGING WINDS... VERY
HEAVY RAINS... AND HAIL ARE ASSOCIATED WITH THESE STORMS. WINDS HAVE
GUSTED TO 66 MILES AN HOUR AT TORONTO ISLAND... 61 MILES AN HOUR AT
TORONTO INTERNATIONAL... AND 55 MILES AN HOUR AT HAMILTON.

MOVEMENT OF THESE THUNDERSTORMS WAS EAST AT 35 MILES AN HOUR... WHICH
SHOULD KEEP MOST OF THE SEVERE WEATHER OVER LAKE ONTARIO... HOWEVER A
SLIGHT CHANGE IN MOVEMENT COULD BRING THE STORMS INTO PARTS OF NIAGARA
AND ORLEANS COUNTIES DURING THE NEXT HOUR.
.
AN ISOLATED THUNDERSTORM WITH HEAVY RAIN WAS OVER PENNSYLVANIA NEAR
DUBOIS. THIS STORM WAS MOVING SOUTHEAST AT 20 MILES AN HOUR.

THE STORMS WILL BE MONITORED CLOSELY DURING THE NEXT HOUR... STAY
TUNED TO THIS STATION OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS OR
POSSIBLE WARNINGS.

WEBBER3
Special weather statement, Jun 15, 8:52 PM EDT, 1 hour 23 minutes before
NYZ001-021-022-002-003-004-005-160200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BUFFALO NY
845 PM EDT SAT JUN 15 1991

...SEVERE THUNDERSTORMS CONTINUE OVER WESTERN LAKE ONTARIO...

AT 830 PM...BUFFALO WEATHER RADAR OBSERVED AN AREA OF SEVERE
THUNDERSTORMS OVER WESTERN LAKE ONTARIO... BETWEEN BOWMANVILLE ONTARIO
AND LYNDONVILLE NEW YORK. THE STRONGEST STORMS WERE JUST SOUTH OF
BOWMANVILLE... AND 10 MILES NORTH OF LYNDONVILLE. THESE STORMS HAVE
A HISTORY OF STRONG DAMAGING WINDS... DANGEROUS LIGHTNING... VERY
HEAVY RAINS... AND HAIL.

ANOTHER STRONG THUNDERSTORM WAS ALONG THE LAKE ERIE SHORELINE ABOUT
10 MILES WEST OF ERIE.

NUMEROUS THUNDERSTORMS WERE OVER ONTARIO BETWEEN LONDON AND DETROIT...
AND ALONG THE EAST SHORE OF LAKE HURON.
.
THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR. SHORELINE
AREAS OF LAKE ONTARIO BETWEEN LYNDONVILLE AND ROCHESTER COULD
EXPERIENCE STRONG GUSTY WINDS DURING THE NEXT HOUR AS THE
THUNDERSTORMS MOVE ACROSS THE LAKE.

STAY TUNED TO THIS STATION OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR POSSIBLE WARNINGS.

WEBBER
Special weather statement, Jun 15, 9:43 PM EDT, 32 minutes before
NYZ001-021-022-002-003-004-005-160300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BUFFALO NY
940 PM EDT SAT JUN 15 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF WESTERN
NEW YORK UNTIL 2 AM EDT...

AT 930 PM...BUFFALO WEATHER RADAR OBSERVED AN AREA OF THUNDERSTORMS
ALONG THE LAKE ERIE SHORELINE BETWEEN ERIE AND WESTFIELD. A
THUNDERSTORM WAS OVER SOUTHERN WYOMING COUNTY JUST EAST OF ARCADE.
THUNDERSTORMS WERE OVER LAKE ONTARIO FROM BRIGHTON TO KINGSTON. SOME
OF THESE STORMS CONTAIN FREQUENT LIGHTNING... STRONG GUSTY WINDS...
VERY HEAVY RAINS WHICH MAY CAUSE POOR DRAINAGE FLOODING... AND
POSSIBLY HAIL. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

A LARGE AREA OF THUNDERSTORMS WAS OVER ONTARIO AND WESTERN LAKE ERIE.
THE LEADING EDGE OF THE AREA EXTENDED BETWEEN GUELPH AND CLEVELAND.
SOME OF THESE STORMS ALSO MAY CONTAIN VERY HEAVY RAINS AND STRONG GUSTY
WINDS. THE AREA WAS MOVING EAST AT 40 MILES AN HOUR.
SHOWERS COVERED MUCH OF WESTERN LAKE ONTARIO... AND PARTS OF NIAGARA
AND ORLEANS COUNTIES.

SHOULD THREATENING WEATHER APPROACH... GO TO A SAFE PLACE IMMEDIATELY.
STAY TUNED TO THIS STATION OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR POSSIBLE WARNINGS.

WEBBER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 10:59 PM EDTSevere Thunderstorm WarningBUFGenesee, Wyoming61 min

Nearby

Severe Thunderstorm Warnings in New York, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.