Alert archive / New York / Special Marine Warnings in 2021
Special Marine Warning 91, NWS Buffalo, NY
NWS Buffalo, NY issued this special marine warning at Aug 14, 2021, 12:05 AM EDT. It was in force for 55 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
- Aug 14, 2021, 12:05 AM EDT (04:05 UTC)
- Expired
- Aug 14, 2021, 1:00 AM EDT
- In force
- 55 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 34.0 mph
The radar
The Buffalo radar (KBUF), 28 km from the middle of the area, began a volume at 04:07 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, 4.1 hours before the alert went out and 29 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
- 179 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
579
WHUS51 KBUF 140405
SMWBUF
LEZ041-140500-
/O.NEW.KBUF.MA.W.0091.210814T0405Z-210814T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Buffalo NY
1205 AM EDT Sat Aug 14 2021
The National Weather Service in Buffalo has issued a
* Special Marine Warning for...
Lake Erie from Lake Erie Beach to the Buffalo
Harbor...
* Until 100 AM EDT.
* At 1204 AM EDT, a strong thunderstorm was located near Lake Erie
Beach, or 18 nm northeast of Dunkirk, moving northeast at 20 knots.
HAZARD...Wind gusts 34 knots or greater and small hail.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
* Locations impacted include...
Small Boat Harbor, Wanakah, Woodlawn Beach, Erie Basin Marina,
Sturgeon Point, Athol Springs and Bayview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor until hazardous weather passes.
&&
LAT...LON 4267 7920 4275 7913 4283 7894 4291 7891
4292 7885 4289 7885 4285 7880 4278 7880
4274 7885 4268 7894 4267 7901 4263 7902
4261 7904
TIME...MOT...LOC 0404Z 207DEG 20KT 4271 7905
HAIL...<.75IN
WIND...>34KTS
$$
Thomas2 follow-up statements
553
FZUS71 KBUF 140427
MWSBUF
Marine Weather Statement
National Weather Service Buffalo NY
1227 AM EDT Sat Aug 14 2021
LEZ041-140500-
/O.CON.KBUF.MA.W.0091.000000T0000Z-210814T0500Z/
1227 AM EDT Sat Aug 14 2021
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 100 AM EDT...
For the following areas...
Lake Erie from Angola to the Buffalo Harbor...
At 1225 AM EDT, a strong thunderstorm was located over Woodlawn
Beach, moving northeast at 15 knots.
HAZARD...Wind gusts 34 knots or greater and small hail.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Small Boat Harbor, Wanakah, Woodlawn Beach, Erie Basin Marina,
Sturgeon Point, Athol Springs and Bayview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor until hazardous weather passes.
&&
LAT...LON 4270 7912 4275 7913 4283 7894 4291 7891
4292 7885 4289 7885 4285 7880 4278 7880
4277 7881 4269 7893 4268 7895 4267 7901
4266 7901
TIME...MOT...LOC 0425Z 232DEG 17KT 4280 7886
HAIL...<.75IN
WIND...>34KTS
$$
Thomas007
FZUS71 KBUF 140457
MWSBUF
Marine Weather Statement
National Weather Service Buffalo NY
1257 AM EDT Sat Aug 14 2021
LEZ041-140506-
/O.EXP.KBUF.MA.W.0091.000000T0000Z-210814T0500Z/
1257 AM EDT Sat Aug 14 2021
...THE SPECIAL MARINE WARNING WILL EXPIRE AT 100 AM EDT...
The affected areas were...
Lake Erie from Angola to the Buffalo Harbor...
The thunderstorm has weakened and no longer poses a significant
threat to boaters.
LAT...LON 4270 7912 4275 7913 4283 7894 4291 7891
4292 7885 4289 7885 4285 7880 4278 7880
4277 7881 4269 7893 4268 7895 4267 7901
4266 7901
TIME...MOT...LOC 0456Z 206DEG 18KT 4288 7882
$$
ThomasThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:35 PM EDT | Special Weather Statement | BUF | Chautauqua | 40 min |
| Aug 13, 9:14 PM EDT | Special Weather Statement | BUF | Chautauqua | 31 min |
| Aug 13, 9:45 PM EDT | Special Weather Statement | BUF | Chautauqua | 30 min |
| Aug 13, 10:51 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Erie, Wyoming | 39 min |
| Aug 13, 11:04 PM EDT | Special Weather Statement | BUF | Oswego | 26 min |
| Aug 13, 11:12 PM EDT | Special Weather Statement | BUF | Cattaraugus | 48 min |
| Aug 13, 11:39 PM EDT | Special Weather Statement | BUF | Erie | 66 min |
| Aug 14, 11:46 AM EDT | Small Craft Advisory | BUF | 11 hr |
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.