Alert archive / New York / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 30, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 5, 2018, 6:21 PM EDT for 4 counties in New York. It was in force for 54 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 5, 2018, 6:21 PM EDT (22:21 UTC)
- Expired
- Jul 5, 2018, 7:15 PM EDT
- In force
- 54 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Livingston County, NY, Monroe County, NY, Ontario County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 100 km from the middle of the area, began a volume at 22:22 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, 10.4 hours before the alert went out and 98 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.
- Mixed-layer CAPE
- 868 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
385
WUUS51 KBUF 052221
SVRBUF
NYC051-055-069-117-052315-
/O.NEW.KBUF.SV.W.0030.180705T2221Z-180705T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
621 PM EDT THU JUL 5 2018
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Southwestern Wayne County in western New York...
Northeastern Livingston County in western New York...
Southeastern Monroe County in western New York...
Northwestern Ontario County in western New York...
* Until 715 PM EDT..
* At 620 PM EDT, a severe thunderstorm was located over Avon, or 9
miles northeast of Geneseo, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Rochester, Irondequoit, East Rochester, Webster, Fairport,
Brighton, Henrietta and Penfield.
#
This includes the following highways...
Interstate 390 between exits 10 and 12.
Interstate 90 between exits 46 and 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4283 7760 4292 7780 4322 7755 4320 7732
4307 7716
TIME...MOT...LOC 2220Z 219DEG 19KT 4292 7770
HAIL...0.88IN
WIND...60MPH
$$
Thomas2 follow-up statements
629
WWUS51 KBUF 052256
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
656 PM EDT THU JUL 5 2018
NYC051-052304-
/O.CAN.KBUF.SV.W.0030.000000T0000Z-180705T2315Z/
Livingston NY-
656 PM EDT THU JUL 5 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LIVINGSTON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4290 7748 4304 7770 4322 7755 4320 7732
4307 7716
TIME...MOT...LOC 2254Z 237DEG 24KT 4305 7738
$$
NYC055-069-117-052315-
/O.CON.KBUF.SV.W.0030.000000T0000Z-180705T2315Z/
Wayne NY-Monroe NY-Ontario NY-
656 PM EDT THU JUL 5 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHWESTERN WAYNE...SOUTHEASTERN MONROE AND NORTHWESTERN ONTARIO
COUNTIES...
At 654 PM EDT, a severe thunderstorm was located between Victor and
Fairport, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Rochester, Irondequoit, East Rochester, Webster, Fairport, Brighton,
Henrietta and Penfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4290 7748 4304 7770 4322 7755 4320 7732
4307 7716
TIME...MOT...LOC 2254Z 237DEG 24KT 4305 7738
HAIL...0.88IN
WIND...60MPH
$$
Thomas065
WWUS51 KBUF 052311
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
711 PM EDT THU JUL 5 2018
NYC055-069-117-052321-
/O.EXP.KBUF.SV.W.0030.000000T0000Z-180705T2315Z/
Wayne NY-Monroe NY-Ontario NY-
711 PM EDT THU JUL 5 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WAYNE...
SOUTHEASTERN MONROE AND NORTHWESTERN ONTARIO COUNTIES WILL EXPIRE AT
715 PM EDT...
The storm which prompted the warning is moving out of the area.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with the weakened showers and thunderstorms.
LAT...LON 4290 7748 4304 7770 4322 7755 4320 7732
4307 7716
TIME...MOT...LOC 2311Z 219DEG 19KT 4309 7733
$$
RSHThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 3:44 PM EDT | Special Weather Statement | BUF | Livingston | 31 min |
| Jul 5, 4:43 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Wyoming | 43 min |
| Jul 5, 4:56 PM EDT | Small Craft Advisory | BUF | 21 hr | |
| Jul 5, 5:30 PM EDT | Flash Flood Warning | BUF | Wayne | 3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.