Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

July 26, 2021Niagara County, New York

NWS Buffalo, NY issued this special weather statement at Jul 26, 2021, 6:43 AM EDT for Niagara County, New York. It was in force for 62 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
Jul 26, 2021, 6:43 AM EDT (10:43 UTC)
Expired
Jul 26, 2021, 7:45 AM EDT
In force
62 min
Issued by
NWS Buffalo, NY

County Niagara County, NY

The radar

The Buffalo radar (KBUF), 21 km from the middle of the area, began a volume at 10:47 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 00:00Z, 10.7 hours before the alert went out and 24 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 2021-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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 2021-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
22 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1550 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

154 
WWUS81 KBUF 261043
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
643 AM EDT Mon Jul 26 2021

NYZ001-010-261145-
Niagara-Northern Erie-
643 AM EDT Mon Jul 26 2021

...PATCHY DENSE FOG THIS MORNING...

A small area of dense fog will continue from Grand Island to 
southern Niagara County early this morning. Visibility will be 
reduced to a quarter mile at times in this area, including on Grand 
Island, Niagara Falls, Wheatfield, Pendleton, and Lockport. 

The fog is expected to persist through the early portion of the 
Monday morning drive. Motorists should use caution and be prepared 
for locally poor visibility, including on Interstate 190 from Grand 
Island to Niagara Falls.

LAT...LON 4317 7892 4323 7860 4314 7855 4306 7883
      4298 7899 4299 7901 4300 7902 4302 7902
      4303 7901 4306 7900 4307 7901 4308 7907

$$

Hitchcock

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 5:52 AM EDTSpecial Weather StatementBUFNiagara53 min
Jul 26, 4:47 PM EDTSpecial Marine WarningBUF43 min
Jul 26, 5:15 PM EDTSpecial Weather StatementBUFJefferson60 min
Jul 26, 5:50 PM EDTSpecial Marine WarningBUF55 min
Jul 26, 6:10 PM EDTSpecial Weather StatementBUFJefferson65 min
Jul 26, 6:38 PM EDTSpecial Weather StatementBUFJefferson52 min
Jul 26, 6:39 PM EDTSpecial Marine WarningBUF66 min
Jul 26, 7:42 PM EDTSpecial Weather StatementBUFJefferson48 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.