Alert archive / New York / Special Weather Statements in 2021
Special Weather Statement, NWS Buffalo, NY
NWS Buffalo, NY issued this special weather statement at Mar 11, 2021, 9:30 PM EST for Livingston County, Ontario County, Wayne County, New York. It was in force for 60 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 11, 2021, 9:30 PM EST (02:30 UTC)
- Expired
- Mar 11, 2021, 10:30 PM EST
- In force
- 60 min
- Issued by
- NWS Buffalo, NY
Counties Livingston County, NY, Ontario County, NY, Wayne County, NY
The radar
The Binghamton radar (KBGM), 133 km from the middle of the area, began a volume at 02:30 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, 2.5 hours before the alert went out and 132 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1157 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 534 m²/s²
- 0-3 km storm-relative helicity
- 598 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
870
WWUS81 KBUF 120230
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
930 PM EST Thu Mar 11 2021
NYZ003>005-011>014-120330-
Ontario-Livingston-Wyoming-Wayne-Genesee-Monroe-Northern Cayuga-
930 PM EST Thu Mar 11 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WAYNE...NORTHEASTERN
WYOMING...LIVINGSTON...CAYUGA...SOUTHEASTERN GENESEE...SOUTHERN
MONROE AND ONTARIO COUNTIES...
At 929 PM EST, radar indicated strong thunderstorms were located
along a line extending from near Ontario to near Chili to near
Attica. Movement was southeast at 40 mph.
Wind gusts up to 50 mph and pea size hail are possible with these
storms.
Locations impacted include...
Rochester, Irondequoit, Chili, Geneva, Canandaigua, Geneseo, East
Rochester, Webster, Fairport, Brighton, Fair Haven Beach State Park,
Gates-North Gates, Letchworth State Park, Ontario, Henrietta,
Penfield, Newark, Williamson, Marion and Le Roy.
This includes the following highways...
Interstate 390 between exits 6 and 12.
Interstate 90 between exits 46 and 40.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Torrential rainfall is also occurring with these storms, which may
cause localized flooding in poor drainage areas and also along
creeks and streams that are already swollen by melting snow. Do not
drive your vehicle through flooded roadways!
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 4288 7825 4332 7737 4333 7714 4331 7697
4335 7681 4339 7673 4343 7668 4344 7658
4342 7662 4325 7661 4325 7648 4303 7649
4301 7696 4276 7697 4276 7731 4267 7737
4258 7737 4257 7766
TIME...MOT...LOC 0229Z 293DEG 34KT 4329 7727 4307 7773 4284 7822
$$
JLAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 8:16 PM EST | Special Weather Statement | BUF | Erie, Orleans | 59 min |
| Mar 11, 8:49 PM EST | Special Weather Statement | BUF | Erie, Genesee, Monroe | 56 min |
| Mar 11, 9:39 PM EST | Special Weather Statement | BUF | Cattaraugus, Chautauqua, Wyoming | 66 min |
| Mar 11, 10:31 PM EST | Special Weather Statement | BUF | Livingston, Ontario | 44 min |
| Mar 12, 4:05 AM EST | Small Craft Advisory | BUF | 3 days |
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.