Alert archive / New York / Special Weather Statements in 2016

Special Weather Statement, NWS Buffalo, NY

September 17, 2016Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Sep 17, 2016, 11:30 AM EDT for Chautauqua County, New York. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 17, 2016, 11:30 AM EDT (15:30 UTC)
Expired: Sep 17, 2016, 12:15 PM EDT
In force: 45 min
Issued by: NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 63 km from the middle of the area, began a volume at 15:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 3.5 hours before the alert went out and 63 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 48 J/kg
Mixed-layer CIN: -304 J/kg
Mixed-layer LCL: 980 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Sep 17, 10:52 AM EDT, 38 minutes earlier.

Area forecast discussion, Sep 17, 10:52 AM EDT, 38 minutes before

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Hazardous weather outlook, Sep 17, 5:34 AM EDT, 5 hours 56 minutes before

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In the hours before

Special weather statement, Sep 17, 11:30 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1130 AM EDT SAT SEP 17 2016

NYZ019-020-085-171615-
SOUTHERN ERIE-CATTARAUGUS-CHAUTAUQUA-
1130 AM EDT SAT SEP 17 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN ERIE...NORTHWESTERN
CATTARAUGUS AND CHAUTAUQUA COUNTIES...

AT 1129 AM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR MAYVILLE AND
MOVING NORTHEAST AT 35 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
JAMESTOWN...DUNKIRK...FREDONIA...EVANS...WESTFIELD...LAKEWOOD...
GOWANDA...SILVER CREEK...FALCONER AND ANGOLA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 90 BETWEEN EXITS 60 AND 58.
 INTERSTATE 86 BETWEEN EXITS 7 AND 15.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN
STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE
A BUILDING OR VEHICLE.

LAT...LON 4254 7935 4258 7927 4260 7919 4264 7916
      4267 7912 4269 7910 4274 7903 4228 7864
      4203 7945 4230 7972
TIME...MOT...LOC 1529Z 240DEG 29KT 4227 7940

REYNOLDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 16, 10:21 PM EDT	Beach Hazards Statement	BUF	Jefferson	25 hr
Sep 17, 4:48 AM EDT	Small Craft Advisory	BUF		26 hr
Sep 17, 4:36 PM EDT	Special Marine Warning	BUF		54 min
Sep 17, 5:22 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	38 min
Sep 17, 5:28 PM EDT	Special Marine Warning	BUF		62 min
Sep 17, 6:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	45 min
Sep 17, 6:13 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	47 min
Sep 17, 6:36 PM EDT	Tornado Warning	BUF	Cattaraugus	24 min
Sep 17, 6:37 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans	53 min
Sep 17, 6:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Wyoming	48 min
Sep 17, 6:56 PM EDT	Special Marine Warning	BUF		94 min
Sep 17, 7:00 PM EDT	Tornado Warning	BUF	Cattaraugus	30 min
Sep 17, 7:30 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	60 min
Sep 17, 7:50 PM EDT	Special Marine Warning	BUF		55 min

Nearby

Special Weather Statements in New York, 2016 Every special weather statement in 2016

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; radar from the NEXRAD Level II archive.