Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 13, 2021Jefferson County, Oswego County, New York

NWS Buffalo, NY issued this special weather statement at Jun 13, 2021, 11:45 PM EDT for Jefferson County, Oswego County, New York. It was in force for 30 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 13, 2021, 11:45 PM EDT (03:45 UTC)
Expired
Jun 14, 2021, 12:15 AM EDT
In force
30 min
Issued by
NWS Buffalo, NY

Counties Jefferson County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 37 km from the middle of the area, began a volume at 03:44 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

Albany, NY (KALY), launched 00:00Z, 3.8 hours before the alert went out and 220 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, Albany, NY at 00:00Z on 2021-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Albany, NY at 00:00Z on 2021-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1539 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

932 
WWUS81 KBUF 140345
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1145 PM EDT Sun Jun 13 2021

NYZ006>008-140415-
Jefferson-Oswego-Lewis-
1145 PM EDT Sun Jun 13 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT JEFFERSON...WEST
CENTRAL LEWIS AND NORTHEASTERN OSWEGO COUNTIES...

At 1145 PM EDT, radar indicated strong thunderstorms were located
along a line extending from 10 miles south of Cedar Point State Park
to Selkirk Shores State Park. Movement was east at 45 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Watertown, Sandy Island Beach State Park, Fort Drum, Stony Point,
Pulaski, Clayton, Adams, Dexter, Redfield, Glen Park, Selkirk Shores
State Park, Mexico Point State Park, Adams Center, Southwick Beach
State Park, Redwood, Henderson Harbor, Barnes Corners, Richland,
Mexico and Sackets Harbor.

This includes Interstate 81 between exits 34 and 49.
 
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 4348 7578 4348 7581 4346 7583 4345 7631
      4356 7631 4356 7628 4358 7626 4369 7626
      4378 7629 4380 7632 4390 7632 4392 7628
      4393 7632 4410 7633 4437 7578
TIME...MOT...LOC 0345Z 250DEG 40KT 4406 7624 4355 7623 
$$

EAJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 8:43 PM EDTSpecial Weather StatementBUFLivingston32 min
Jun 13, 8:45 PM EDTSpecial Weather StatementBUFAllegany30 min
Jun 13, 9:19 PM EDTSpecial Marine WarningBUF73 min
Jun 13, 9:31 PM EDTSpecial Weather StatementBUFAllegany29 min
Jun 13, 9:54 PM EDTSpecial Weather StatementBUFWayne36 min
Jun 13, 10:23 PM EDTSpecial Weather StatementBUFWayne37 min
Jun 13, 11:01 PM EDTSpecial Weather StatementBUFOntario, Wayne44 min
Jun 14, 12:04 AM EDTSevere Thunderstorm WarningBUFJefferson, Lewis56 min
Jun 14, 12:42 AM EDTSpecial Weather StatementBUFLewis33 min
Jun 14, 1:17 AM EDTSpecial Weather StatementBUFLewis43 min
Jun 14, 5:08 PM EDTSpecial Weather StatementBUFNiagara37 min
Jun 14, 5:36 PM EDTSpecial Weather StatementBUFGenesee, Niagara24 min
Jun 14, 6:04 PM EDTSpecial Weather StatementBUFGenesee41 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.