Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

August 1, 2021Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Aug 1, 2021, 11:14 AM EDT for Lewis County, New York. It was in force for 46 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
Aug 1, 2021, 11:14 AM EDT (15:14 UTC)
Expired
Aug 1, 2021, 12:00 PM EDT
In force
46 min
Issued by
NWS Buffalo, NY

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 37 km from the middle of the area, began a volume at 15:14 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 12:00Z, 3.2 hours before the alert went out and 194 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 12:00Z on 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1357 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

568 
WWUS81 KBUF 011514
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1114 AM EDT Sun Aug 1 2021

NYZ007-008-011600-
Jefferson-Lewis-
1114 AM EDT Sun Aug 1 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL JEFFERSON AND
NORTHEASTERN LEWIS COUNTIES...

At 1113 AM EDT, a strong thunderstorm was located 7 miles east of
Carthage, or 15 miles east of Fort Drum, moving east at 30 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm, along with brief torrential downpours.

Locations impacted include...
Belfort, Indian River, Natural Bridge, Harrisville, Diana and
Soft Maple Reservoir.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

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 4394 7559 4408 7561 4413 7524 4410 7517
      4389 7514
TIME...MOT...LOC 1513Z 268DEG 25KT 4399 7546 
$$

Hitchcock

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 7:30 AM EDTSpecial Weather StatementBUFErie45 min
Aug 1, 9:55 AM EDTSpecial Weather StatementBUFLivingston35 min
Aug 1, 10:08 AM EDTSpecial Weather StatementBUFChautauqua37 min
Aug 1, 10:11 AM EDTSpecial Weather StatementBUFWyoming34 min
Aug 1, 10:44 AM EDTSpecial Weather StatementBUFChautauqua46 min
Aug 1, 10:47 AM EDTSpecial Weather StatementBUFAllegany43 min
Aug 1, 11:33 AM EDTSpecial Weather StatementBUFCattaraugus42 min
Aug 1, 12:07 PM EDTSpecial Marine WarningBUF83 min
Aug 1, 12:18 PM EDTSpecial Weather StatementBUFAllegany42 min
Aug 1, 12:42 PM EDTSevere Thunderstorm WarningBUFAllegany48 min
Aug 1, 1:38 PM EDTSpecial Weather StatementBUFAllegany82 min
Aug 1, 3:24 PM EDTSpecial Weather StatementBUFJefferson81 min
Aug 1, 5:14 PM EDTSpecial Weather StatementBUFOntario46 min
Aug 1, 5:34 PM EDTSpecial Marine WarningBUF116 min
Aug 1, 6:20 PM EDTSpecial Marine WarningBUF85 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.