Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 36, NWS Buffalo, NY

July 16, 2018Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 16, 2018, 7:22 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 38 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
Jul 16, 2018, 7:22 PM EDT (23:22 UTC)
Expired
Jul 16, 2018, 8:00 PM EDT
In force
38 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 77 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 76 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 12:00Z on 2018-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2018-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
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.

104 
WUUS51 KBUF 162322
SVRBUF
NYC009-013-029-170000-
/O.NEW.KBUF.SV.W.0036.180716T2322Z-180717T0000Z/

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

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cattaraugus County in western New York...
  South central Erie County in western New York...
  East central Chautauqua County in western New York...

* Until 800 PM EDT..

* At 721 PM EDT, a severe thunderstorm was located 10 miles north of 
  Jamestown, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Springville, Colden, Gowanda, Ashford, Ashford Hollow, East
  Concord, Concord and Collins.

# 

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 this storm. 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 this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4214 7937 4232 7943 4265 7868 4225 7852
TIME...MOT...LOC 2321Z 244DEG 49KT 4225 7928 

HAIL...<.75IN
WIND...60MPH
 
$$

RSH
1 follow-up statement
469 
WWUS51 KBUF 162349
SVSBUF

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

NYC009-013-029-170000-
/O.CON.KBUF.SV.W.0036.000000T0000Z-180717T0000Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
749 PM EDT MON JUL 16 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHWESTERN CATTARAUGUS...SOUTH CENTRAL ERIE AND EAST CENTRAL
CHAUTAUQUA COUNTIES...

At 748 PM EDT, a severe thunderstorm was located 13 miles northeast
of Falconer, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Springville, Colden, Gowanda, Ashford, Ashford Hollow, East Concord,
Concord and Collins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
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 this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4216 7922 4238 7926 4265 7868 4230 7854
TIME...MOT...LOC 2348Z 231DEG 62KT 4229 7908 

HAIL...<.75IN
WIND...60MPH
 
$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 4:17 PM EDTSpecial Weather StatementBUFMonroe43 min
Jul 16, 4:28 PM EDTSevere Thunderstorm WarningBUFMonroe47 min
Jul 16, 4:46 PM EDTSpecial Marine WarningBUF59 min
Jul 16, 4:53 PM EDTSevere Thunderstorm WarningBUFMonroe, Wayne44 min
Jul 16, 5:14 PM EDTSevere Thunderstorm WarningBUFOntario, Wayne61 min
Jul 16, 5:23 PM EDTSpecial Weather StatementBUFAllegany37 min
Jul 16, 5:56 PM EDTSevere Thunderstorm WarningBUFCayuga, Oswego, Wayne29 min
Jul 16, 5:59 PM EDTSpecial Marine WarningBUF34 min
Jul 16, 7:10 PM EDTFlash Flood WarningBUFAllegany3 hr
Jul 16, 7:42 PM EDTSpecial Marine WarningBUF63 min
Jul 16, 7:59 PM EDTSevere Thunderstorm WarningBUFChautauqua46 min

Nearby

Severe Thunderstorm Warnings in New York, 2018Every 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.