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, 8:49 PM EST for Erie County, Genesee County, Monroe County, New York. It was in force for 56 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, 8:49 PM EST (01:49 UTC)
- Expired
- Mar 11, 2021, 9:45 PM EST
- In force
- 56 min
- Issued by
- NWS Buffalo, NY
Counties Erie County, NY, Genesee County, NY, Monroe County, NY
The radar
The Buffalo radar (KBUF), 12 km from the middle of the area, began a volume at 01:49 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, 1.8 hours before the alert went out and 9 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.
295
WWUS81 KBUF 120149
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
849 PM EST Thu Mar 11 2021
NYZ001>003-010>012-019-020-085-120245-
Chautauqua-Cattaraugus-Southern
Erie-Wyoming-Orleans-Genesee-Monroe-Niagara-Northern Erie-
849 PM EST Thu Mar 11 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN WYOMING...
NORTHWESTERN CATTARAUGUS...ERIE...SOUTHEASTERN NIAGARA...ORLEANS...
NORTHEASTERN CHAUTAUQUA...GENESEE AND NORTHWESTERN MONROE COUNTIES...
At 847 PM EST, radar indicated thunderstorms were located along a
line extending from near Albion to 12 miles northwest of Lake Erie
State Park. Movement was southeast at 25 mph.
Winds in excess of 40 mph, pea size hail and brief heavy downpours
are possible with these storms through late this evening.
Locations impacted include...
Buffalo, Rochester, Greece, Cheektowaga, Irondequoit, West Seneca,
Clarence, Chili, Lackawanna, Batavia, Kenmore, Depew, Amherst,
Tonawanda, Dunkirk, Fredonia, Lancaster, Hamburg, Brockport and East
Aurora.
This includes Interstate 90 between exits 59 and 47.
If outdoors, consider seeking shelter inside a building.
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!
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.
LAT...LON 4253 7939 4259 7919 4272 7909 4280 7892
4295 7893 4341 7803 4339 7775 4328 7754
4331 7731 4225 7921 4242 7954
TIME...MOT...LOC 0147Z 309DEG 20KT 4328 7810 4255 7959
$$
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, 9:30 PM EST | Special Weather Statement | BUF | Livingston, Ontario, Wayne | 60 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.