Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 43, NWS Buffalo, NY

August 6, 2018Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 6, 2018, 4:43 PM EDT for Lewis County, Oswego County, New York. It was in force for 41 min. 3 reports 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: Aug 6, 2018, 4:43 PM EDT (20:43 UTC)
Expired: Aug 6, 2018, 5:24 PM EDT
In force: 41 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 37 km from the middle of the area, began a volume at 20:46 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
Aug 6, 4:44 PM EDT	TSTM WND DMG	2 E Mexico, NY	TREE AND WIRES DOWN ON SMITHERS ROAD.
Aug 6, 4:52 PM EDT	TSTM WND DMG	1 N Howardville, NY	TREES AND WIRES DOWN ALONG COUNTY ROUTE 22 AND STATE ROUTE 104.
Aug 6, 5:15 PM EDT	TSTM WND DMG	Williamstown, NY	TREE DOWN NEAR INTERSECTION OF ROUTE 17 AND ROUTE 13.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.7 hours before the alert went out and 188 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: 220 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 1200 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

216 
WUUS51 KBUF 062043
SVRBUF
NYC049-075-062145-
/O.NEW.KBUF.SV.W.0043.180806T2043Z-180806T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
443 PM EDT MON AUG 6 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southwestern Lewis County in central New York...
  Northeastern Oswego County in central New York...

* Until 545 PM EDT..

* At 443 PM EDT, a severe thunderstorm was located 9 miles south of
  Pulaski, or 15 miles south of Sandy Island Beach State Park, moving
  east at 20 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Redfield, Hastings, Williamstown, Parish, Altmar, Osceola, Kasoag
  and North Osceola.

# 

This includes Interstate 81 between exits 33 and 35.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4348 7581 4334 7588 4333 7618 4350 7621
      4367 7570 4345 7565
TIME...MOT...LOC 2043Z 254DEG 18KT 4343 7608 

HAIL...1.00IN
WIND...60MPH
 
$$

Apffel

2 follow-up statements

435 
WWUS51 KBUF 062059
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
459 PM EDT MON AUG 6 2018

NYC049-075-062145-
/O.CON.KBUF.SV.W.0043.000000T0000Z-180806T2145Z/
Lewis NY-Oswego NY-
459 PM EDT MON AUG 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHWESTERN LEWIS AND EAST CENTRAL OSWEGO COUNTIES...

At 459 PM EDT, a severe thunderstorm was located 9 miles southwest of
Redfield, or 13 miles northwest of Camden, moving east at 20 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Redfield, Williamstown, Altmar, Osceola, Kasoag, North Osceola,
Howardville and Salmon River Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4348 7581 4340 7585 4338 7606 4352 7610
      4367 7570 4345 7565
TIME...MOT...LOC 2059Z 254DEG 18KT 4345 7597 

HAIL...1.00IN
WIND...60MPH
 
$$

Apffel

074 
WWUS51 KBUF 062124
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
524 PM EDT MON AUG 6 2018

NYC049-075-062133-
/O.CAN.KBUF.SV.W.0043.000000T0000Z-180806T2145Z/
Lewis NY-Oswego NY-
524 PM EDT MON AUG 6 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LEWIS AND EAST
CENTRAL OSWEGO COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the area. Therefore, the warning has been cancelled.

LAT...LON 4348 7581 4340 7585 4338 7606 4352 7610
      4367 7570 4345 7565
TIME...MOT...LOC 2122Z 254DEG 18KT 4348 7581 

$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 2:01 PM EDT	Special Weather Statement	BUF	Livingston, Wyoming	44 min
Aug 6, 2:43 PM EDT	Special Marine Warning	BUF		62 min
Aug 6, 2:46 PM EDT	Special Weather Statement	BUF	Wyoming	44 min
Aug 6, 2:57 PM EDT	Special Marine Warning	BUF		63 min
Aug 6, 3:06 PM EDT	Special Weather Statement	BUF	Ontario	24 min
Aug 6, 3:12 PM EDT	Special Marine Warning	BUF		63 min
Aug 6, 3:17 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	58 min
Aug 6, 3:21 PM EDT	Special Weather Statement	BUF	Niagara	54 min
Aug 6, 3:34 PM EDT	Special Marine Warning	BUF		41 min
Aug 6, 4:08 PM EDT	Special Marine Warning	BUF		52 min
Aug 6, 4:19 PM EDT	Special Weather Statement	BUF	Oswego	56 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.