Alert archive / New York / Special Marine Warnings in 2015

Special Marine Warning 21, NWS Buffalo, NY

June 23, 2015

NWS Buffalo, NY issued this special marine warning at Jun 23, 2015, 3:21 AM EDT. It was in force for 84 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
Jun 23, 2015, 3:21 AM EDT (07:21 UTC)
Expired
Jun 23, 2015, 4:45 AM EDT
In force
84 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

The radar

The Buffalo radar (KBUF), 28 km from the middle of the area, began a volume at 07:25 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, 7.4 hours before the alert went out and 31 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 00:00Z on 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2108 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
298 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

676 
WHUS51 KBUF 230721
SMWBUF
LEZ020-041-LOZ030-042-062-230845-
/O.NEW.KBUF.MA.W.0021.150623T0721Z-150623T0845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
321 AM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  LAKE ONTARIO FROM THE NIAGARA RIVER TO THIRTY MILE POINT... 
  THE UPPER AND LOWER NIAGARA RIVER AND BUFFALO HARBOR...

* UNTIL 445 AM EDT

* AT 319 AM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM... 
  CAPABLE OF PRODUCING WINDS 35 KNOTS OR GREATER...LOCATED 25 NM 
  WEST OF LEWISTON...MOVING EAST AT 45 KNOTS.

* LOCATIONS IMPACTED INCLUDE...
  LEWISTON...GRAND ISLAND...SUNSET BEACH...YOUNGSTOWN...OLCOTT...
  NIAGARA RIVER...FORT NIAGARA AND THIRTY MILE POINT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED 
METAL OBJECTS. THIS STORM WILL ALSO PRODUCE STRONG WINDS IN EXCESS 
OF 35 KNOTS. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY.

&&

LAT...LON 4361 7849 4337 7847 4336 7863 4326 7906
      4307 7897 4305 7889 4302 7889 4300 7893
      4305 7893 4306 7896 4295 7891 4292 7891
      4297 7895 4306 7897 4308 7907 4327 7907
      4343 7919
TIME...MOT...LOC 0719Z 255DEG 43KT 4302 7958 

$$

HITCHCOCK
2 follow-up statements
030 
FZUS71 KBUF 230800
MWSBUF

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
400 AM EDT TUE JUN 23 2015

LEZ041-LOZ030-042-062-230809-
/O.CAN.KBUF.MA.W.0021.000000T0000Z-150623T0845Z/
400 AM EDT TUE JUN 23 2015

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

THE AFFECTED AREAS WERE...  

LAKE ONTARIO FROM THE NIAGARA RIVER TO THIRTY MILE POINT... 
THE LOWER NIAGARA RIVER...

THE NORTHERN PORTION OF THE LINE OF STORMS HAS WEAKENED AND NO 
LONGER POSES A SIGNIFICANT THREAT TO BOATERS.

LAT...LON 4307 7897 4305 7889 4302 7889 4300 7893
      4305 7893 4306 7896 4295 7891 4292 7891
      4297 7895 4306 7897 4308 7907
TIME...MOT...LOC 0759Z 270DEG 43KT 4298 7890 

$$

LEZ020-230845-
/O.CON.KBUF.MA.W.0021.000000T0000Z-150623T0845Z/
400 AM EDT TUE JUN 23 2015

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 445 AM EDT...

FOR THE FOLLOWING AREAS...
  THE UPPER NIAGARA RIVER AND BUFFALO HARBOR...

AT 358 AM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM... 
CAPABLE OF PRODUCING WINDS 35 KNOTS OR GREATER...LOCATED NEAR GRAND 
ISLAND...OR 18 NM SOUTHEAST OF NIAGARA RIVER...MOVING EAST AT 45 
KNOTS.

LOCATIONS IMPACTED INCLUDE...
GRAND ISLAND...ERIE BASIN MARINA AND SMALL BOAT HARBOR. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM.  IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

&&

LAT...LON 4307 7897 4305 7889 4302 7889 4300 7893
      4305 7893 4306 7896 4295 7891 4292 7891
      4297 7895 4306 7897 4308 7907
TIME...MOT...LOC 0759Z 270DEG 43KT 4298 7890 

$$

HITCHCOCK
136 
FZUS71 KBUF 230820
MWSBUF

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
420 AM EDT TUE JUN 23 2015

LEZ020-230829-
/O.CAN.KBUF.MA.W.0021.000000T0000Z-150623T0845Z/
420 AM EDT TUE JUN 23 2015

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

THE AFFECTED AREAS WERE... 
  THE UPPER NIAGARA RIVER AND BUFFALO HARBOR...

THE THUNDERSTORM HAS MOVED OUT OF THE AREA AND NO LONGER POSES A
SIGNIFICANT THREAT TO BOATERS.

LAT...LON 4307 7897 4305 7889 4302 7889 4300 7893
      4305 7893 4306 7896 4295 7891 4292 7891
      4297 7895 4306 7897 4308 7907
TIME...MOT...LOC 0816Z 255DEG 43KT 4291 7858 

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 1:13 AM EDTSpecial Marine WarningBUF2 hr
Jun 23, 1:16 AM EDTSpecial Marine WarningBUF119 min
Jun 23, 3:42 AM EDTSpecial Marine WarningBUF63 min
Jun 23, 3:44 AM EDTSpecial Marine WarningBUF61 min
Jun 23, 3:52 AM EDTSevere Thunderstorm WarningBUFErie, Niagara34 min
Jun 23, 4:24 AM EDTSpecial Marine WarningBUF96 min
Jun 23, 4:29 AM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Orleans, Wyoming46 min
Jun 23, 4:44 AM EDTSevere Thunderstorm WarningBUFChautauqua46 min
Jun 23, 4:52 AM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario, Wayne53 min
Jun 23, 5:27 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie63 min
Jun 23, 6:02 AM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus58 min

Nearby

Special Marine Warnings in New York, 2015Every special marine warning in 2015

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.