Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

July 2, 2021Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Jul 2, 2021, 10:00 AM EDT for Chautauqua County, New York. It was in force for 90 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 2, 2021, 10:00 AM EDT (14:00 UTC)
Expired
Jul 2, 2021, 11:30 AM EDT
In force
90 min
Issued by
NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 81 km from the middle of the area, began a volume at 14:04 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, 2.0 hours before the alert went out and 82 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 2021-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 348 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 2021-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.193958Sfc1 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
348 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

054 
WWUS81 KBUF 021400
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1000 AM EDT Fri Jul 2 2021

NYZ019-020-085-021530-
Chautauqua-Cattaraugus-Southern Erie-
1000 AM EDT Fri Jul 2 2021

...SLOW MOVING STORMS WITH HEAVY RAINFALL ACROSS PORTIONS OF 
SOUTHERN ERIE...CHAUTAUQUA AND CATTARAUGUS COUNTIES...

A large area of slow moving showers and thunderstorms will persist 
across parts of the western southern tier this morning. These storms 
will produce heavy rainfall with amounts of one to two inches 
possible over the next few hours. This will result in ponding of 
water on roadways and in low lying areas. Small hail has also been 
reported with these storms.

If traveling this morning, be prepared for reduced visibility due to 
heavy rainfall and allow yourself extra time to reach your 
destination. 

LAT...LON 4227 7976 4228 7973 4231 7977 4234 7973
      4244 7950 4253 7939 4259 7919 4272 7909
      4275 7901 4266 7870 4200 7866 4200 7976
$$

Levan

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:15 PM EDTSpecial Weather StatementBUFLivingston30 min
Jul 1, 8:45 PM EDTSpecial Weather StatementBUFNiagara30 min
Jul 1, 9:50 PM EDTSpecial Weather StatementBUFGenesee, Orleans40 min
Jul 1, 10:28 PM EDTFlash Flood WarningBUFGenesee93 min
Jul 2, 8:44 AM EDTSpecial Weather StatementBUFJefferson, Lewis, Oswego2 hr
Jul 2, 10:31 AM EDTSpecial Weather StatementBUFErie44 min
Jul 2, 11:12 AM EDTSpecial Weather StatementBUFWayne2 hr
Jul 2, 11:27 AM EDTSpecial Weather StatementBUFCattaraugus, Chautauqua, Erie2 hr
Jul 2, 12:38 PM EDTSpecial Weather StatementBUFGenesee, Livingston, Monroe, Orleans, Wyoming112 min
Jul 2, 1:16 PM EDTSpecial Marine WarningBUF44 min
Jul 2, 1:36 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Chautauqua, Erie114 min
Jul 2, 2:20 PM EDTSpecial Weather StatementBUFNiagara, Orleans115 min
Jul 2, 2:26 PM EDTSpecial Marine WarningBUF34 min
Jul 2, 5:02 PM EDTSpecial Weather StatementBUFAllegany58 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.