Alert archive / New York / Special Marine Warnings in 2016

Special Marine Warning 21, NWS Buffalo, NY

July 18, 2016

NWS Buffalo, NY issued this special marine warning at Jul 18, 2016, 12:05 PM EDT. It was in force for 40 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: Jul 18, 2016, 12:05 PM EDT (16:05 UTC)
Expired: Jul 18, 2016, 12:45 PM EDT
In force: 40 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.0 in
Wind: 34.0 mph

The radar

The Ft Drum radar (KTYX), 100 km from the middle of the area, began a volume at 16:08 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

Time	Report	Where	Remark
Jul 18, 12:21 PM EDT	TSTM WND DMG	Sterling, NY	TREES DOWN ACROSS ROAD

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, 4.1 hours before the alert went out and 162 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: 1403 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 677 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

As transmitted.

363 
WHUS51 KBUF 181605
SMWBUF
LOZ043-044-063-064-181645-
/O.NEW.KBUF.MA.W.0021.160718T1605Z-160718T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1205 PM EDT MON JUL 18 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  LAKE ONTARIO FROM SODUS BAY TO SCRIBA...

* UNTIL 1245 PM EDT

* AT 1204 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR SODUS
  BAY AND MOVING EAST AT 35 KNOTS.

  HAZARD...WIND GUSTS 34 KNOTS OR GREATER. 

  SOURCE...RADAR INDICATED. 

  IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND 
           SUDDENLY HIGHER WAVES. 

* LOCATIONS IMPACTED INCLUDE...
  FAIR HAVEN...OSWEGO AND SODUS BAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.

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

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
CENTRAL NEW YORK. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT
UNTIL 800 PM EDT FOR CENTRAL NEW YORK.

LAT...LON 4325 7709 4351 7709 4352 7643 4347 7643
      4338 7660 4328 7668 4328 7672 4329 7676
      4323 7701
TIME...MOT...LOC 1604Z 267DEG 35KT 4337 7699 

HAIL...0.00IN
WIND...>34KTS

$$

REYNOLDS

1 follow-up statement

471 
FZUS71 KBUF 181649
MWSBUF

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1249 PM EDT MON JUL 18 2016

LOZ043-044-063-064-181658-
/O.EXP.KBUF.MA.W.0021.000000T0000Z-160718T1645Z/
1249 PM EDT MON JUL 18 2016

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

THE AFFECTED AREAS WERE... 
HAMLIN BEACH TO SODUS BAY NY...
HAMLIN BEACH TO SODUS BAY NY BEYOND 5NM OFF SHORELINE TO US-
CANADIAN BORDER...
SODUS BAY TO MEXICO BAY NY...
SODUS BAY TO MEXICO BAY NY BEYOND 5NM OFF SHORELINE TO US-
CANADIAN BORDER...
  
THE THUNDERSTORM HAS MOVED OUT OF THE AREA AND NO LONGER POSES A
SIGNIFICANT THREAT TO BOATERS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
CENTRAL NEW YORK. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT
UNTIL 800 PM EDT FOR CENTRAL NEW YORK.

LAT...LON 4325 7709 4351 7709 4352 7643 4347 7643
      4338 7660 4328 7668 4328 7672 4329 7676
      4323 7701
TIME...MOT...LOC 1644Z 267DEG 35KT 4337 7699 

$$

ZAFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 4:16 AM EDT	Special Marine Warning	BUF		59 min
Jul 18, 4:20 AM EDT	Beach Hazards Statement	BUF	Cayuga, Chautauqua, Erie, Jefferson, Oswego, Wayne	18 hr
Jul 18, 5:10 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	53 min
Jul 18, 5:15 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe, Orleans	43 min
Jul 18, 9:58 AM EDT	Special Weather Statement	BUF	Allegany	32 min
Jul 18, 10:07 AM EDT	Special Weather Statement	BUF	Yates	23 min
Jul 18, 10:48 AM EDT	Special Marine Warning	BUF		27 min
Jul 18, 11:03 AM EDT	Special Marine Warning	BUF		87 min
Jul 18, 11:12 AM EDT	Special Weather Statement	BUF	Ontario	33 min
Jul 18, 11:51 AM EDT	Special Weather Statement	BUF	Genesee	39 min
Jul 18, 12:12 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	63 min
Jul 18, 1:00 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	60 min
Jul 18, 2:24 PM EDT	Special Weather Statement	BUF	Jefferson	36 min
Jul 18, 2:44 PM EDT	Special Weather Statement	BUF	Monroe	31 min

Nearby

Special Marine Warnings in New York, 2016 Every special marine warning in 2016

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.