Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

March 28, 20215 counties in New York

NWS Buffalo, NY issued this special weather statement at Mar 28, 2021, 12:48 PM EDT for 5 counties in New York. It was in force for 57 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
Mar 28, 2021, 12:48 PM EDT (16:48 UTC)
Expired
Mar 28, 2021, 1:45 PM EDT
In force
57 min
Issued by
NWS Buffalo, NY

Counties Allegany County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 96 km from the middle of the area, began a volume at 16:51 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, 4.8 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2021-03-28Temperature 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, Buffalo Intl Airport, NY at 12:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939587897117136156Sfc1 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
1221 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

687 
WWUS81 KBUF 281648
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1248 PM EDT Sun Mar 28 2021

NYZ002>004-011>014-020-021-281745-
Cattaraugus-Allegany-Ontario-Livingston-Wyoming-Orleans-Wayne-
Genesee-Monroe-
1248 PM EDT Sun Mar 28 2021

...A LINE OF SHOWERS WILL AFFECT WAYNE...EASTERN WYOMING...
SOUTHEASTERN CATTARAUGUS...LIVINGSTON...EASTERN ORLEANS...ALLEGANY...
EASTERN GENESEE...MONROE AND ONTARIO COUNTIES...

At 1246 PM EDT, radar indicated showers were located along a line
extending from near Hamlin Beach State Park to near Mount Morris to
near Coryville. Movement was east at 45 mph.

Brief wind gusts of 40 to 50 mph are possible with these showers.

Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Geneva, Canandaigua,
Brockport, Geneseo, East Rochester, Hilton, Webster, Fairport,
Dansville, Wellsville, Brighton, Gates-North Gates, Hamlin Beach
State Park, Letchworth State Park, Ontario and Henrietta.

This includes the following highways...
 Interstate 390 between exits 4 and 12.
 Interstate 90 between exits 47 and 42.
 Interstate 86 between exits 28 and 33.

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

LAT...LON 4200 7844 4278 7799 4342 7806 4339 7775
      4328 7754 4332 7735 4333 7693 4302 7690
      4301 7696 4276 7697 4276 7731 4258 7737
      4258 7766 4253 7766 4253 7772 4200 7775
TIME...MOT...LOC 1646Z 277DEG 38KT 4339 7799 4278 7792 4191 7841 
$$

JLA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 4:00 AM EDTWind AdvisoryBUFCayuga, Jefferson, Livingston, Monroe, Ontario, Oswego and 1 more27 hr
Mar 28, 12:22 PM EDTRiver Flood WarningBUFJefferson, Lewis31 hr
Mar 28, 1:46 PM EDTSpecial Weather StatementBUFOntario, Oswego, Wayne119 min
Mar 28, 2:56 PM EDTSpecial Weather StatementBUFJefferson34 min
Mar 28, 3:44 PM EDTSpecial Weather StatementBUFLewis61 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.