Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 35, NWS Buffalo, NY

July 16, 2018Cayuga County, Oswego County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 16, 2018, 5:56 PM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 29 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 16, 2018, 5:56 PM EDT (21:56 UTC)
Expired: Jul 16, 2018, 6:25 PM EDT
In force: 29 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cayuga County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 95 km from the middle of the area, began a volume at 21:59 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 16, 5:58 PM EDT	TSTM WND DMG	Rose, NY	TREES AND WIRES DOWN ON CATCHPOLE 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, 9.9 hours before the alert went out and 175 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: 26 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

642 
WUUS51 KBUF 162156
SVRBUF
NYC011-075-117-162300-
/O.NEW.KBUF.SV.W.0035.180716T2156Z-180716T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
556 PM EDT MON JUL 16 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Eastern Wayne County in western New York...
  Cayuga County in central New York...
  West central Oswego County in central New York...

* Until 700 PM EDT..

* At 555 PM EDT, severe thunderstorms were located along a line
  extending from near Chimney Bluffs State Park to near Clyde to
  Lehigh Vallley Junction, moving northeast at 15 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Oswego, Fair Haven Beach State Park, Clyde, Weedsport, Cato,
  Sterling, Rose and Ira.

# 

This includes Interstate 90 near exit 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4349 7651 4315 7647 4314 7649 4311 7647
      4310 7650 4303 7649 4302 7688 4328 7690
TIME...MOT...LOC 2155Z 244DEG 14KT 4324 7686 4312 7678 4293 7677 

HAIL...0.75IN
WIND...60MPH
 
$$

RSH

1 follow-up statement

603 
WWUS51 KBUF 162225
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
625 PM EDT MON JUL 16 2018

NYC011-075-117-162235-
/O.CAN.KBUF.SV.W.0035.000000T0000Z-180716T2300Z/
Wayne NY-Cayuga NY-Oswego NY-
625 PM EDT MON JUL 16 2018

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WAYNE...CAYUGA AND
WEST CENTRAL OSWEGO COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with these thunderstorms.

LAT...LON 4349 7651 4315 7647 4314 7649 4311 7647
      4310 7650 4303 7649 4302 7688 4328 7690
TIME...MOT...LOC 2223Z 244DEG 14KT 4329 7673 4317 7665 4298 7664 

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 4:17 PM EDT	Special Weather Statement	BUF	Monroe	43 min
Jul 16, 4:28 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	47 min
Jul 16, 4:46 PM EDT	Special Marine Warning	BUF		59 min
Jul 16, 4:53 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	44 min
Jul 16, 5:14 PM EDT	Severe Thunderstorm Warning	BUF	Ontario, Wayne	61 min
Jul 16, 5:23 PM EDT	Special Weather Statement	BUF	Allegany	37 min
Jul 16, 5:59 PM EDT	Special Marine Warning	BUF		34 min
Jul 16, 7:10 PM EDT	Flash Flood Warning	BUF	Allegany	3 hr
Jul 16, 7:22 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	38 min
Jul 16, 7:42 PM EDT	Special Marine Warning	BUF		63 min
Jul 16, 7:59 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	46 min

Nearby

Severe Thunderstorm Warnings in New York, 2018 Every severe thunderstorm warning in 2018

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.