Alert archive / New York / Special Weather Statements in 2021
Special Weather Statement, NWS Buffalo, NY
NWS Buffalo, NY issued this special weather statement at Jun 19, 2021, 4:36 PM EDT for Allegany County, Cattaraugus County, 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
- Jun 19, 2021, 4:36 PM EDT (20:36 UTC)
- Expired
- Jun 19, 2021, 5:30 PM EDT
- In force
- 54 min
- Issued by
- NWS Buffalo, NY
Counties Allegany County, NY, Cattaraugus County, NY, Livingston County, NY
The radar
The Buffalo radar (KBUF), 76 km from the middle of the area, began a volume at 20:34 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, 8.6 hours before the alert went out and 73 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.
- Mixed-layer CAPE
- 120 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted.
230
WWUS81 KBUF 192036
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
436 PM EDT Sat Jun 19 2021
NYZ012>014-019>021-085-192130-
Chautauqua-Cattaraugus-Allegany-Ontario-Livingston-Southern
Erie-Wyoming-
436 PM EDT Sat Jun 19 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN WYOMING...
CATTARAUGUS...SOUTHEASTERN ERIE...LIVINGSTON...SOUTHEASTERN
CHAUTAUQUA...ALLEGANY AND SOUTHWESTERN ONTARIO COUNTIES...
At 436 PM EDT, radar indicated strong thunderstorms were located
along a line extending from 10 miles west of Portageville to near
Falconer. Movement was east at 10 mph.
Winds in excess of 30 mph and pea size hail are possible with these
storms.
Locations impacted include...
Jamestown, Salamanca, Dansville, Wellsville, Letchworth State Park,
Allegany State Park, Alfred, Perry, Warsaw, Mount Morris, Conesus,
Falconer, Ashford, Arcade, Franklinville, Belfast, Cuba, Rushford,
Chaffee and Portageville.
This includes the following highways...
Interstate 390 between exits 4 and 7.
Interstate 86 between exits 9 and 16, between exits 20 and 21, and
between exits 27 and 33.
Torrential rainfall is also occurring with these storms, 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.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4211 7949 4277 7806 4278 7747 4258 7747
4258 7766 4253 7766 4253 7772 4212 7775
TIME...MOT...LOC 2036Z 269DEG 10KT 4260 7823 4217 7913
$$
ReynoldsThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 1:18 PM EDT | Small Craft Advisory | BUF | 9 hr | |
| Jun 19, 6:18 PM EDT | Special Weather Statement | BUF | Wyoming | 42 min |
| Jun 19, 6:45 PM EDT | Special Weather Statement | BUF | Allegany, Livingston, Wyoming | 60 min |
| Jun 19, 7:07 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Erie | 3 hr |
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.