Alert archive / New York / Special Marine Warnings in 2021

Special Marine Warning 4, NWS Buffalo, NY

March 26, 2021

NWS Buffalo, NY issued this special marine warning at Mar 26, 2021, 8:50 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: Mar 26, 2021, 8:50 AM EDT (12:50 UTC)
Expired: Mar 26, 2021, 9:45 AM EDT
In force: 55 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.0 in
Wind: 40.0 mph

The radar

The Ft Drum radar (KTYX), 113 km from the middle of the area, began a volume at 12:51 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, 0.8 hours before the alert went out and 148 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: 203 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1181 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 320 m²/s²
0-3 km storm-relative helicity: 338 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

110 
WHUS51 KBUF 261250
SMWBUF
LOZ043-044-063-064-261345-
/O.NEW.KBUF.MA.W.0004.210326T1250Z-210326T1345Z/

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

The National Weather Service in Buffalo has issued a

* Special Marine Warning for...
  Lake Ontario from Irondequoit Bay to Oswego...

* Until 945 AM EDT.

* At 849 AM EDT, strong thunderstorms were located along a line
  extending from 16 nm northwest of Ontario On The Lake to near
  Ontario Beach, 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...
  Oswego, Sodus Bay, Ontario On The Lake and Fair Haven. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4363 7754 4363 7680 4383 7664 4343 7648
      4338 7660 4328 7668 4329 7676 4323 7702
      4325 7711 4325 7729 4321 7752
TIME...MOT...LOC 1249Z 237DEG 57KT 4350 7755 4327 7752 

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

$$

Hitchcock

1 follow-up statement

759 
FZUS71 KBUF 261325
MWSBUF

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

LOZ043-044-063-064-261345-
/O.CON.KBUF.MA.W.0004.000000T0000Z-210326T1345Z/
925 AM EDT Fri Mar 26 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 945 AM EDT...

For the following areas...
  Lake Ontario from Sodus Bay to Oswego...

At 924 AM EDT, strong thunderstorms were located along a line
extending from 19 nm northwest of Fair Haven to near Sodus Bay,
moving east at 40 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...
Sodus Bay, Oswego and Fair Haven. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4325 7711 4363 7713 4363 7680 4383 7664
      4343 7648 4338 7660 4328 7668 4329 7676
      4323 7702
TIME...MOT...LOC 1324Z 264DEG 40KT 4356 7702 4336 7701 

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

$$

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, 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, 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.