Alert archive / New York / Special Marine Warnings in 2021
Special Marine Warning 39, NWS Buffalo, NY
NWS Buffalo, NY issued this special marine warning at Jul 8, 2021, 3:48 PM EDT. 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
- Jul 8, 2021, 3:48 PM EDT (19:48 UTC)
- Expired
- Jul 8, 2021, 4:45 PM EDT
- In force
- 57 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.0 in
- Wind
- 34.0 mph
The radar
The Buffalo radar (KBUF), 32 km from the middle of the area, began a volume at 19:49 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 12:00Z, 7.8 hours before the alert went out and 33 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
- 99 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 725 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
850
WHUS51 KBUF 081948
SMWBUF
LEZ020-041-061-082045-
/O.NEW.KBUF.MA.W.0039.210708T1948Z-210708T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Buffalo NY
348 PM EDT Thu Jul 8 2021
The National Weather Service in Buffalo has issued a
* Special Marine Warning for...
Lake Erie from Silver Creek to Buffalo Harbor...
The Upper Niagara River and Buffalo Harbor...
* Until 445 PM EDT.
* At 347 PM EDT, strong thunderstorms were located 7 nm west of Erie
Basin Marina, or 23 nm south of Niagara River, moving east at 25
knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
* Locations impacted include...
Small Boat Harbor, Lake Erie Beach, Wanakah, Woodlawn Beach, Erie
Basin Marina, Sturgeon Point, Athol Springs, Bayview and Sunset
Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 4267 7936 4283 7894 4290 7891 4293 7891
4293 7886 4289 7885 4285 7880 4279 7880
4272 7887 4268 7894 4266 7901 4263 7902
4259 7907 4253 7912 4251 7916
TIME...MOT...LOC 1947Z 270DEG 25KT 4286 7907
HAIL...0.00IN
WIND...>34KTS
$$
HSK2 follow-up statements
966
FZUS71 KBUF 082034
MWSBUF
Marine Weather Statement
National Weather Service Buffalo NY
434 PM EDT Thu Jul 8 2021
LEZ020-041-061-082045-
/O.CON.KBUF.MA.W.0039.000000T0000Z-210708T2045Z/
434 PM EDT Thu Jul 8 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 445 PM EDT...
For the following areas...
Lake Erie from Silver Creek to Buffalo Harbor...
The Upper Niagara River and Buffalo Harbor...
At 433 PM EDT, showers were located near Wanakah, or 22 nm northeast
of Dunkirk, moving east at 30 knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Small Boat Harbor, Lake Erie Beach, Wanakah, Woodlawn Beach, Erie
Basin Marina, Sturgeon Point, Athol Springs, Bayview and Sunset Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 4267 7936 4283 7894 4290 7891 4293 7891
4293 7886 4289 7885 4285 7880 4279 7880
4272 7887 4268 7894 4266 7901 4263 7902
4259 7907 4253 7912 4251 7916
TIME...MOT...LOC 2033Z 250DEG 32KT 4275 7900
HAIL...0.00IN
WIND...>34KTS
$$
HSK470
FZUS71 KBUF 082047
MWSBUF
Marine Weather Statement
National Weather Service Buffalo NY
447 PM EDT Thu Jul 8 2021
LEZ020-041-061-082057-
/O.EXP.KBUF.MA.W.0039.000000T0000Z-210708T2045Z/
447 PM EDT Thu Jul 8 2021
...THE SPECIAL MARINE WARNING EXPIRED AT 445 PM EDT...
The affected areas were...
Lake Erie from Silver Creek to Buffalo Harbor...
The Upper Niagara River and Buffalo Harbor...
The shower has weakened and no longer poses a significant threat to
boaters.
LAT...LON 4267 7936 4283 7894 4290 7891 4293 7891
4293 7886 4289 7885 4285 7880 4279 7880
4272 7887 4268 7894 4266 7901 4263 7902
4259 7907 4253 7912 4251 7916
TIME...MOT...LOC 2047Z 270DEG 25KT 4275 7889
$$
HSKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:04 PM EDT | Special Weather Statement | BUF | Allegany, Cattaraugus, Chautauqua | 56 min |
| Jul 7, 8:39 PM EDT | Flash Flood Warning | BUF | Allegany | 3 hr |
| Jul 8, 12:48 PM EDT | Special Weather Statement | BUF | Niagara | 27 min |
| Jul 8, 1:40 PM EDT | Special Weather Statement | BUF | Niagara | 35 min |
| Jul 8, 2:18 PM EDT | Special Weather Statement | BUF | Orleans | 42 min |
| Jul 8, 3:08 PM EDT | Special Weather Statement | BUF | Niagara | 67 min |
| Jul 8, 3:23 PM EDT | Special Marine Warning | BUF | 37 min | |
| Jul 8, 3:34 PM EDT | Special Weather Statement | BUF | Erie | 41 min |
| Jul 8, 3:41 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 48 min |
| Jul 8, 4:13 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans | 32 min |
| Jul 8, 4:16 PM EDT | Special Weather Statement | BUF | Oswego | 44 min |
| Jul 8, 4:26 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 49 min |
| Jul 8, 4:29 PM EDT | Special Weather Statement | BUF | Monroe | 61 min |
| Jul 8, 4:37 PM EDT | Special Marine Warning | BUF | 53 min | |
| Jul 8, 4:45 PM EDT | Special Weather Statement | BUF | Genesee, Monroe | 30 min |
| Jul 8, 4:53 PM EDT | Flash Flood Warning | BUF | Monroe, Wayne | 3 hr |
| Jul 8, 5:09 PM EDT | Special Weather Statement | BUF | Lewis | 51 min |
| Jul 8, 5:12 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 63 min |
| Jul 8, 6:15 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 60 min |
| Jul 8, 7:52 PM EDT | Special Weather Statement | BUF | Lewis | 38 min |
Nearby
Special Marine Warnings in New York, 2021Every special marine warning 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.