Alert archive / New York / Special Marine Warnings in 2021

Special Marine Warning 7, NWS Buffalo, NY

May 26, 2021

NWS Buffalo, NY issued this special marine warning at May 26, 2021, 11:53 AM EDT. It was in force for 52 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 26, 2021, 11:53 AM EDT (15:53 UTC)
Expired
May 26, 2021, 12:45 PM EDT
In force
52 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
40.0 mph

The radar

The Ft Drum radar (KTYX), 79 km from the middle of the area, began a volume at 15:53 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.

What was reported inside it

TimeReportWhereRemark
May 26, 12:00 PM EDTTSTM WND DMG2 Sse Sodus Point, NYTREES AND WIRES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 3.9 hours before the alert went out and 183 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
26 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1679 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

255 
WHUS51 KBUF 261553
SMWBUF
LOZ043>045-063>065-261645-
/O.NEW.KBUF.MA.W.0007.210526T1553Z-210526T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Buffalo NY
1153 AM EDT Wed May 26 2021

The National Weather Service in Buffalo has issued a

* Special Marine Warning for...
  Lake Ontario from Sodus Bay to Southwick Beach...

* Until 1245 PM EDT.

* At 1152 AM EDT, a strong thunderstorm was located over Sodus Bay,
  moving east at 45 knots.

  HAZARD...Wind gusts to 40 knots and small hail.

  SOURCE...Radar.

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

* Locations impacted include...
  Oswego, Mexico Bay, Southwick Beach, North Pond, Selkirk Beach,
  Sodus Bay, Fair Haven and Sandy Island Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4351 7620 4348 7629 4349 7640 4338 7660
      4328 7668 4329 7676 4323 7701 4324 7707
      4341 7711 4378 7623 4366 7610
TIME...MOT...LOC 1552Z 249DEG 43KT 4329 7697 

HAIL...<.75IN
WIND...40KTS

$$

Hitchcock
2 follow-up statements
458 
FZUS71 KBUF 261615
MWSBUF

Marine Weather Statement
National Weather Service Buffalo NY
1215 PM EDT Wed May 26 2021

LOZ043-063-261624-
/O.CAN.KBUF.MA.W.0007.000000T0000Z-210526T1645Z/
1215 PM EDT Wed May 26 2021

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

The affected areas were...
  Lake Ontario west of Sodus Bay...

The thunderstorm has moved out of the warned area and no longer 
poses a significant threat to boaters.

LAT...LON 4361 7615 4358 7615 4351 7620 4348 7629
      4349 7640 4338 7660 4328 7668 4329 7676
      4328 7683 4352 7685 4378 7623 4366 7610
TIME...MOT...LOC 1614Z 257DEG 41KT 4335 7668 

$$

LOZ044-045-064-065-261645-
/O.CON.KBUF.MA.W.0007.000000T0000Z-210526T1645Z/
1215 PM EDT Wed May 26 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1245 PM EDT...

For the following areas...
  Lake Ontario from Sodus Bay to Southwick Beach...

At 1214 PM EDT, a strong thunderstorm was located over Fair Haven, or
9 nm southwest of Oswego, moving east at 40 knots.

HAZARD...Wind gusts to 40 knots and small hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Oswego, Mexico Bay, Southwick Beach, North Pond, Selkirk Beach, Fair
Haven and Sandy Island Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4361 7615 4358 7615 4351 7620 4348 7629
      4349 7640 4338 7660 4328 7668 4329 7676
      4328 7683 4352 7685 4378 7623 4366 7610
TIME...MOT...LOC 1614Z 257DEG 41KT 4335 7668 

HAIL...<.75IN
WIND...40KTS

$$

Hitchcock
769 
FZUS71 KBUF 261646
MWSBUF

Marine Weather Statement
National Weather Service Buffalo NY
1246 PM EDT Wed May 26 2021

LOZ044-045-064-065-261656-
/O.EXP.KBUF.MA.W.0007.000000T0000Z-210526T1645Z/
1246 PM EDT Wed May 26 2021

...THE SPECIAL MARINE WARNING EXPIRED AT 1245 PM EDT...

The affected areas were... 
  Lake Ontario from Sodus Bay to Southwick Beach...

The thunderstorm has moved out of the area and no longer poses a
significant threat to boaters.

LAT...LON 4361 7615 4358 7615 4351 7620 4348 7629
      4349 7640 4338 7660 4328 7668 4329 7676
      4328 7683 4352 7685 4378 7623 4366 7610
TIME...MOT...LOC 1646Z 249DEG 43KT 4348 7622 

$$

Hitchcock

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 10:19 AM EDTSmall Craft AdvisoryBUF9 hr
May 26, 11:17 AM EDTSpecial Weather StatementBUFLivingston28 min
May 26, 11:31 AM EDTSpecial Weather StatementBUFWayne29 min
May 26, 11:44 AM EDTSpecial Weather StatementBUFLivingston16 min
May 26, 11:59 AM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne61 min
May 26, 12:03 PM EDTSpecial Weather StatementBUFAllegany27 min
May 26, 12:36 PM EDTSevere Thunderstorm WarningBUFOswego39 min
May 26, 12:57 PM EDTSevere Thunderstorm WarningBUFLewis63 min
May 26, 1:57 PM EDTSpecial Weather StatementBUFChautauqua33 min
May 26, 2:05 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua43 min
May 26, 4:25 PM EDTSmall Craft AdvisoryBUF16 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.