Alert archive / New York / Special Marine Warnings in 2021

Special Marine Warning 2, NWS Buffalo, NY

March 26, 2021

NWS Buffalo, NY issued this special marine warning at Mar 26, 2021, 7:00 AM EDT. It was in force for 45 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 26, 2021, 7:00 AM EDT (11:00 UTC)
Expired: Mar 26, 2021, 7:45 AM EDT
In force: 45 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.0 in
Wind: 40.0 mph

The radar

The Buffalo radar (KBUF), 32 km from the middle of the area, began a volume at 10:59 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, 11.0 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2106 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

506 
WHUS51 KBUF 261100
SMWBUF
LEZ020-040-041-061-261145-
/O.NEW.KBUF.MA.W.0002.210326T1100Z-210326T1145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Buffalo NY
700 AM EDT Fri Mar 26 2021

The National Weather Service in Buffalo has issued a

* Special Marine Warning for...
  Lake Erie from Dunkirk to the Buffalo Harbor... The Upper Niagara 
  River and Buffalo Harbor...

* Until 745 AM EDT.

* At 700 AM EDT, a strong thunderstorm was located 15 nm north of 
  Dunkirk, moving northeast at 55 knots.

  HAZARD...Wind gusts to 40 knots.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Locations impacted include...
  Van Buren Point, Small Boat Harbor, Lake Erie Beach, Wanakah,
  Woodlawn Beach, Erie Basin Marina, Sturgeon Point, Dunkirk, Athol
  Springs, Bayview, Sunset Bay and Grand Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 4260 7953 4283 7894 4292 7890 4296 7893
      4297 7898 4302 7885 4300 7884 4298 7888
      4289 7885 4285 7880 4278 7880 4275 7882
      4268 7894 4267 7901 4263 7902 4252 7914
      4246 7932 4237 7945
TIME...MOT...LOC 1100Z 242DEG 55KT 4272 7939 

HAIL...0.00IN
WIND...40KTS

$$

RSH

2 follow-up statements

531 
FZUS71 KBUF 261126
MWSBUF

Marine Weather Statement
National Weather Service Buffalo NY
726 AM EDT Fri Mar 26 2021

LEZ040-061-261135-
/O.CAN.KBUF.MA.W.0002.000000T0000Z-210326T1145Z/
726 AM EDT Fri Mar 26 2021

...THE SPECIAL MARINE WARNING IS CANCELLED...

The affected areas were...
  Lake Erie from Dunkirk to Silver Creek...

The thunderstorms have moved out of the warned area
and no longer pose a significant threat to boaters.

LAT...LON 4262 7928 4263 7924 4267 7921 4283 7893
      4292 7890 4296 7893 4297 7898 4302 7885
      4300 7884 4298 7888 4289 7885 4285 7880
      4278 7880 4275 7882 4268 7894 4267 7901
      4263 7902 4256 7910
TIME...MOT...LOC 1125Z 249DEG 42KT 4289 7900 4262 7923 

$$

LEZ020-041-261145-
/O.CON.KBUF.MA.W.0002.000000T0000Z-210326T1145Z/
726 AM EDT Fri Mar 26 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 745 AM EDT...

For the following areas...  
Lake Erie from Silver Creek to Buffalo Harbor...

At 725 AM EDT, strong thunderstorms were located along a line 
extending from near Erie Basin Marina to near Sunset Bay, moving 
northest at 55 knots.

HAZARD...Wind gusts to 40 knots.

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 Grand
Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 4262 7928 4263 7924 4267 7921 4283 7893
      4292 7890 4296 7893 4297 7898 4302 7885
      4300 7884 4298 7888 4289 7885 4285 7880
      4278 7880 4275 7882 4268 7894 4267 7901
      4263 7902 4256 7910
TIME...MOT...LOC 1125Z 249DEG 42KT 4289 7900 4262 7923 

HAIL...0.00IN
WIND...40KTS

$$

RSH

090 
FZUS71 KBUF 261144
MWSBUF

Marine Weather Statement
National Weather Service Buffalo NY
744 AM EDT Fri Mar 26 2021

LEZ020-041-261153-
/O.EXP.KBUF.MA.W.0002.000000T0000Z-210326T1145Z/
744 AM EDT Fri Mar 26 2021

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 745 AM EDT...

The affected areas were...   Lake Erie from Silver Creek to Buffalo 
Harbor including The Upper Niagara River and Buffalo Harbor...

The thunderstorms have moved inland and no longer pose a significant 
threat to boaters.

LAT...LON 4262 7928 4263 7924 4267 7921 4283 7893
      4292 7890 4296 7893 4297 7898 4302 7885
      4300 7884 4298 7888 4289 7885 4285 7880
      4278 7880 4275 7882 4268 7894 4267 7901
      4263 7902 4256 7910
TIME...MOT...LOC 1143Z 242DEG 55KT 4301 7868 4275 7891 

$$

RSH

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 25, 10:02 PM EDT	Small Craft Advisory	BUF		31 hr
Mar 26, 2:27 AM EDT	Special Weather Statement	BUF	Erie, Wyoming	48 min
Mar 26, 7:15 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	45 min
Mar 26, 7:47 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Monroe, Niagara, Orleans	45 min
Mar 26, 7:54 AM EDT	Special Marine Warning	BUF		66 min
Mar 26, 8:00 AM EDT	Special Weather Statement	BUF	Oswego	45 min
Mar 26, 8:50 AM EDT	Special Marine Warning	BUF		55 min
Mar 26, 9:44 AM EDT	Special Marine Warning	BUF		61 min
Mar 26, 9:58 AM EDT	Special Weather Statement	BUF	Oswego	47 min
Mar 26, 10:38 AM EDT	Special Weather Statement	BUF	Oswego	37 min
Mar 26, 10:44 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	61 min

Nearby

Special Marine Warnings in New York, 2021 Every 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.