Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 10, NWS Buffalo, NY

June 1, 2018Cayuga County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 1, 2018, 1:24 PM EDT for Cayuga County, Ontario County, Wayne County, New York. It was in force for 51 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
Jun 1, 2018, 1:24 PM EDT (17:24 UTC)
Expired
Jun 1, 2018, 2:15 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Cayuga County, NY, Ontario County, NY, Wayne County, NY

The radar

The Binghamton radar (KBGM), 115 km from the middle of the area, began a volume at 17:24 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

TimeReportWhereRemark
Jun 1, 1:58 PM EDTTSTM WND DMGSavannah, NYTREE DOWN.

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, 5.4 hours before the alert went out and 141 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 2018-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 372 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 2018-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
372 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

262 
WUUS51 KBUF 011724
SVRBUF
NYC011-069-117-011815-
/O.NEW.KBUF.SV.W.0010.180601T1724Z-180601T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
124 PM EDT FRI JUN 1 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in western New York...
  Cayuga County in central New York...
  Northeastern Ontario County in western New York...

* Until 215 PM EDT..

* At 123 PM EDT, a severe thunderstorm was located over Clifton 
  Springs, or 7 miles east of Canandaigua, moving east at 35 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Geneva, Canandaigua, Newark, Lyons, Clifton Springs, Clyde, Phelps
  and Weedsport.

# 

This includes Interstate 90 between exits 43 and 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Heavy rainfall is occurring with this storm, and may lead to 
localized flooding. Do not drive your vehicle through flooded 
roadways.

&&

LAT...LON 4283 7725 4304 7729 4312 7654 4303 7653
      4301 7696 4287 7696 4286 7698 4284 7698
TIME...MOT...LOC 1722Z 262DEG 30KT 4293 7714 

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

Welch
1 follow-up statement
897 
WWUS51 KBUF 011759
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
159 PM EDT FRI JUN 1 2018

NYC011-069-117-011815-
/O.CON.KBUF.SV.W.0010.000000T0000Z-180601T1815Z/
Wayne NY-Cayuga NY-Ontario NY-
159 PM EDT FRI JUN 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHEASTERN WAYNE...CAYUGA AND NORTHEASTERN ONTARIO COUNTIES...

At 158 PM EDT, a severe thunderstorm was located near Lyons, moving 
east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Geneva, Newark, Lyons, Clyde, Phelps, Weedsport, Savannah and Port
Byron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent 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.

&&

LAT...LON 4306 7709 4312 7654 4303 7653 4301 7696
      4287 7696 4286 7698 4290 7707 4299 7711
TIME...MOT...LOC 1756Z 262DEG 30KT 4297 7675 

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

Welch

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 1:10 PM EDTSpecial Weather StatementBUFWayne50 min
Jun 1, 2:07 PM EDTSpecial Weather StatementBUFCattaraugus68 min
Jun 1, 2:13 PM EDTFlash Flood WarningBUFCayuga, Wayne3 hr
Jun 1, 2:16 PM EDTSevere Thunderstorm WarningBUFCayuga, Wayne44 min
Jun 1, 3:28 PM EDTSpecial Marine WarningBUF76 min
Jun 1, 3:35 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua25 min
Jun 1, 3:53 PM EDTSpecial Weather StatementBUFAllegany22 min
Jun 1, 3:58 PM EDTFlash Flood WarningBUFCattaraugus, Chautauqua3 hr
Jun 1, 4:11 PM EDTSpecial Weather StatementBUFLivingston34 min
Jun 1, 4:38 PM EDTSpecial Weather StatementBUFGenesee37 min
Jun 1, 4:55 PM EDTSpecial Weather StatementBUFOntario65 min
Jun 1, 4:59 PM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario61 min
Jun 1, 5:59 PM EDTFlash Flood WarningBUFLewis3 hr
Jun 1, 6:39 PM EDTAreal Flood WarningBUFCattaraugus, Chautauqua6 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.