Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 19, NWS Buffalo, NY

June 18, 2018Erie County, Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 18, 2018, 1:19 PM EDT for Erie County, Niagara County, New York. It was in force for 41 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 18, 2018, 1:19 PM EDT (17:19 UTC)
Expired: Jun 18, 2018, 2:00 PM EDT
In force: 41 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Erie County, NY, Niagara County, NY

The radar

The Buffalo radar (KBUF), 28 km from the middle of the area, began a volume at 17:22 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 12:00Z, 5.3 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-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: 776 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

847 
WUUS51 KBUF 181719
SVRBUF
NYC029-063-181800-
/O.NEW.KBUF.SV.W.0019.180618T1719Z-180618T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
119 PM EDT MON JUN 18 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Erie County in western New York...
  Central Niagara County in western New York...

* Until 200 PM EDT..

* At 119 PM EDT, a severe thunderstorm was located near Lewiston, or
  7 miles north of Niagara Falls, moving east at 30 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...
  Lockport, Amherst, Pendleton, Lewiston, Youngstown, Fort Niagara
  State Park, Sanborn and Cambria Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4318 7847 4300 7855 4314 7905 4315 7904
      4317 7905 4325 7906 4326 7907 4330 7909
TIME...MOT...LOC 1719Z 287DEG 28KT 4320 7911 

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

JJR

2 follow-up statements

607 
WWUS51 KBUF 181742
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
142 PM EDT MON JUN 18 2018

NYC029-063-181800-
/O.CON.KBUF.SV.W.0019.000000T0000Z-180618T1800Z/
Erie NY-Niagara NY-
142 PM EDT MON JUN 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR NORTHEASTERN ERIE AND CENTRAL NIAGARA COUNTIES...

At 141 PM EDT, a severe thunderstorm was located over Sanborn, or 7
miles north of North Tonawanda, moving east at 30 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...
Lockport, Amherst, Pendleton, Sanborn, Gasport, Cambria Center,
Pendleton Center and Ransomville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4318 7847 4300 7855 4313 7900 4317 7901
      4320 7904 4325 7901 4327 7895
TIME...MOT...LOC 1741Z 287DEG 28KT 4315 7888 

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

JJR

371 
WWUS51 KBUF 181758
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
158 PM EDT MON JUN 18 2018

NYC029-063-181808-
/O.EXP.KBUF.SV.W.0019.000000T0000Z-180618T1800Z/
Erie NY-Niagara NY-
158 PM EDT MON JUN 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ERIE AND CENTRAL
NIAGARA COUNTIES WILL EXPIRE AT 200 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.

LAT...LON 4318 7847 4300 7855 4313 7900 4317 7901
      4320 7904 4325 7901 4327 7895
TIME...MOT...LOC 1758Z 287DEG 28KT 4312 7874 

$$

JJR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 12:59 PM EDT	Special Marine Warning	BUF		61 min
Jun 18, 1:20 PM EDT	Special Marine Warning	BUF		40 min
Jun 18, 1:35 PM EDT	Special Marine Warning	BUF		55 min
Jun 18, 2:10 PM EDT	Special Weather Statement	BUF	Lewis	35 min
Jun 18, 2:14 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	46 min
Jun 18, 2:16 PM EDT	Special Marine Warning	BUF		59 min
Jun 18, 2:32 PM EDT	Special Marine Warning	BUF		18 min
Jun 18, 2:39 PM EDT	Small Craft Advisory	BUF		3 hr
Jun 18, 2:40 PM EDT	Special Weather Statement	BUF	Erie	35 min
Jun 18, 3:56 PM EDT	Special Marine Warning	BUF		94 min
Jun 18, 6:00 PM EDT	Special Weather Statement	BUF	Livingston, Wyoming	60 min
Jun 18, 6:24 PM EDT	Special Marine Warning	BUF		66 min
Jun 18, 6:33 PM EDT	Special Weather Statement	BUF	Erie, Wyoming	57 min
Jun 18, 6:39 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	66 min
Jun 18, 6:45 PM EDT	Special Marine Warning	BUF		45 min
Jun 18, 7:27 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua	63 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.