Alert archive / New York / Special Marine Warnings in 2021

Special Marine Warning 3, NWS Buffalo, NY

March 26, 2021

NWS Buffalo, NY issued this special marine warning at Mar 26, 2021, 7:54 AM EDT. It was in force for 66 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, 7:54 AM EDT (11:54 UTC)
Expired: Mar 26, 2021, 9:00 AM EDT
In force: 66 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.0 in
Wind: 40.0 mph

The radar

The Buffalo radar (KBUF), 73 km from the middle of the area, began a volume at 11:54 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, 11.9 hours before the alert went out and 72 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.

937 
WHUS51 KBUF 261154
SMWBUF
LOZ042-043-062-063-261300-
/O.NEW.KBUF.MA.W.0003.210326T1154Z-210326T1300Z/

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

The National Weather Service in Buffalo has issued a

* Special Marine Warning for...
  Lake Ontario from Thirty Mile Point to Irondequoit Bay...

* Until 900 AM EDT.

* At 753 AM EDT, strong thunderstorms were located along a line
  extending from 16 nm west of Sunset Beach to 19 nm east of Grand
  Island, moving east at 50 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...
  Sunset Beach, Ontario Beach, Thirty Mile Point, Irondequoit Bay and
  Hamlin Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4344 7865 4363 7804 4363 7753 4321 7751
      4320 7756 4327 7772 4327 7778 4331 7783
      4334 7811 4334 7853 4332 7861
TIME...MOT...LOC 1153Z 249DEG 52KT 4340 7862 4307 7852 

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

$$

Hitchcock

2 follow-up statements

519 
FZUS71 KBUF 261224
MWSBUF

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

LOZ042-043-062-063-261300-
/O.CON.KBUF.MA.W.0003.000000T0000Z-210326T1300Z/
824 AM EDT Fri Mar 26 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 900 AM EDT...

For the following areas...
  Lake Ontario from Point Breeze to Irondequoit Bay...

At 824 AM EDT, strong thunderstorms were located along a line
extending from 10 nm north of Sunset Beach to near Hamlin Beach,
moving northeast 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...
Irondequoit Bay, Ontario Beach and Hamlin Beach. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4327 7772 4327 7778 4331 7781 4334 7807
      4334 7818 4357 7823 4363 7804 4363 7753
      4321 7751 4320 7756
TIME...MOT...LOC 1224Z 244DEG 55KT 4353 7815 4335 7799 

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

$$

Hitchcock

793 
FZUS71 KBUF 261306
MWSBUF

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

LOZ042-043-062-063-261316-
/O.EXP.KBUF.MA.W.0003.000000T0000Z-210326T1300Z/
906 AM EDT Fri Mar 26 2021

...THE SPECIAL MARINE WARNING EXPIRED AT 900 AM EDT...

The affected areas were... 
  Lake Ontario from Point Breeze to Irondequoit Bay...

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

Another Special Marine Warning is in effect from Irondequoit Bay to 
Oswego.

LAT...LON 4327 7772 4327 7778 4331 7781 4334 7807
      4334 7818 4357 7823 4363 7804 4363 7753
      4321 7751 4320 7756
TIME...MOT...LOC 1306Z 270DEG 52KT 4372 7747 4354 7731 

$$

Hitchcock

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, 7:00 AM EDT	Special Marine Warning	BUF		45 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, 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.