Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 28, 2021Allegany County, New York

NWS Buffalo, NY issued this special weather statement at Jun 28, 2021, 3:05 PM EDT for Allegany County, New York. It was in force for 40 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
Jun 28, 2021, 3:05 PM EDT (19:05 UTC)
Expired
Jun 28, 2021, 3:45 PM EDT
In force
40 min
Issued by
NWS Buffalo, NY

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 102 km from the middle of the area, began a volume at 19:05 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, 7.1 hours before the alert went out and 99 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 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 99 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
99 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

532 
WWUS81 KBUF 281905
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
305 PM EDT Mon Jun 28 2021

NYZ021-281945-
Allegany-
305 PM EDT Mon Jun 28 2021

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ALLEGANY COUNTY...

At 304 PM EDT, a strong thunderstorm was located near Wellsville,
moving east at 20 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Wellsville, Alfred, Friendship, Scio, Andover, Belmont, Almond, West
Almond and Knight Creek.

This includes Interstate 86 between exits 29 and 30, and between
exits 32 and 33.
 
Frequent cloud to ground 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 4224 7818 4238 7773 4212 7775 4207 7811
TIME...MOT...LOC 1904Z 254DEG 19KT 4219 7802 
$$

Mitchell

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 9:38 AM EDTHeat AdvisoryBUFCayuga, Lewis, Livingston, Monroe, Ontario, Oswego and 1 more10 hr
Jun 28, 2:03 PM EDTHeat AdvisoryBUFCayuga, Chautauqua, Erie, Genesee, Livingston, Monroe and 5 more30 hr
Jun 28, 5:01 PM EDTSpecial Weather StatementBUFCattaraugus44 min
Jun 28, 5:27 PM EDTSpecial Weather StatementBUFOnondaga18 min
Jun 28, 5:50 PM EDTSpecial Weather StatementBUFOnondaga25 min
Jun 28, 6:03 PM EDTSpecial Weather StatementBUFAllegany42 min
Jun 28, 6:09 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus66 min

Nearby

Special Weather Statements in New York, 2021Every special weather statement in 2021

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.