Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

August 28, 2021Livingston County, New York

NWS Buffalo, NY issued this special weather statement at Aug 28, 2021, 9:06 PM EDT for Livingston County, New York. It was in force for 54 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 28, 2021, 9:06 PM EDT (01:06 UTC)
Expired: Aug 28, 2021, 10:00 PM EDT
In force: 54 min
Issued by: NWS Buffalo, NY
Hail: 0.00 in
Wind: 30

County Livingston County, NY

The radar

The Buffalo radar (KBUF), 96 km from the middle of the area, began a volume at 01:07 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, 1.1 hours before the alert went out and 93 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 593 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1397 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

116 
WWUS81 KBUF 290106
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
906 PM EDT Sat Aug 28 2021
 
NYZ013-014-290200-
Ontario NY-Livingston NY-
906 PM EDT Sat Aug 28 2021

...Showers and thunderstorms will produce heavy rainfall across 
portions of southeastern Livingston and southwestern Ontario 
Counties through 1000 PM EDT...

Rainfall rates of excess of an inch an hour are possible.

HAZARD...Heavy rainfall.

SOURCE...Radar indicated.

IMPACT...Heavy rain may produce ponding of water on roadways and 
         localized flooding.

Locations impacted include...
Geneseo, Dansville, Conesus, Naples, Honeoye, Hemlock, Groveland,
Springwater, Canadice, Bristol Mountain and Hunt Hollow.

This includes Interstate 390 between exits 4 and 5.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4254 7782 4281 7780 4280 7733 4258 7739
      4258 7766 4254 7766
TIME...MOT...LOC 0104Z 264DEG 23KT 4270 7767 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

TMA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 12:04 AM EDT	Special Weather Statement	BUF	Jefferson	56 min
Aug 29, 1:02 AM EDT	Special Weather Statement	BUF	Jefferson, Lewis	58 min
Aug 29, 2:04 AM EDT	Special Weather Statement	BUF	Jefferson	3 hr
Aug 29, 12:03 PM EDT	Special Marine Warning	BUF		57 min
Aug 29, 12:07 PM EDT	Special Weather Statement	BUF	Niagara	53 min
Aug 29, 12:24 PM EDT	Special Weather Statement	BUF	Chautauqua	66 min
Aug 29, 12:47 PM EDT	Flash Flood Warning	BUF	Niagara	3 hr
Aug 29, 1:55 PM EDT	Special Weather Statement	BUF	Seneca	35 min
Aug 29, 2:04 PM EDT	Special Weather Statement	BUF	Ontario	41 min
Aug 29, 2:11 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	64 min
Aug 29, 2:30 PM EDT	Special Weather Statement	BUF	Ontario, Wayne	60 min
Aug 29, 3:25 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	20 min
Aug 29, 3:38 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	10 min
Aug 29, 3:57 PM EDT	Special Marine Warning	BUF		62 min
Aug 29, 5:29 PM EDT	Special Weather Statement	BUF	Ontario	31 min

Nearby

Special Weather Statements in New York, 2021 Every 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.