Alert archive / New York / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 89, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 17, 2019, 12:37 PM EDT for Livingston County, Ontario 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
- Aug 17, 2019, 12:37 PM EDT (16:37 UTC)
- Expired
- Aug 17, 2019, 1:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Livingston County, NY, Ontario County, NY
The radar
The Buffalo radar (KBUF), 104 km from the middle of the area, began a volume at 16:36 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, 4.6 hours before the alert went out and 101 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
- 39 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1233 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
026
WUUS51 KBUF 171637
SVRBUF
NYC051-069-171715-
/O.NEW.KBUF.SV.W.0089.190817T1637Z-190817T1715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1237 PM EDT Sat Aug 17 2019
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Central Livingston County in western New York...
Central Ontario County in western New York...
* Until 115 PM EDT..
* At 1237 PM EDT, a severe thunderstorm was located near Geneseo,
moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Canandaigua, Geneseo, Mount Morris, Conesus, Bristol, Lima, Clifton
Springs, Bloomfield, Rushville and Honeoye.
This includes Interstate 390 between exits 7 and 9.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4267 7787 4286 7790 4297 7715 4276 7710
4276 7731 4273 7734 4269 7736
TIME...MOT...LOC 1637Z 261DEG 33KT 4277 7776
HAIL...<.75IN
WIND...60MPH
$$
Welch2 follow-up statements
447
WWUS51 KBUF 171705
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
105 PM EDT Sat Aug 17 2019
NYC051-069-171715-
/O.CON.KBUF.SV.W.0089.000000T0000Z-190817T1715Z/
Livingston NY-Ontario NY-
105 PM EDT Sat Aug 17 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHEASTERN LIVINGSTON AND CENTRAL ONTARIO COUNTIES...
At 105 PM EDT, a severe thunderstorm was located over Bristol, or 8
miles southwest of Canandaigua, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Canandaigua, Bristol, Clifton Springs, Bloomfield, Rushville,
Honeoye, Hemlock, Gorham, East Bloomfield and West Bloomfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4269 7763 4290 7760 4297 7715 4276 7710
4276 7731 4273 7734 4269 7736
TIME...MOT...LOC 1705Z 261DEG 33KT 4281 7741
HAIL...<.75IN
WIND...60MPH
$$
Reynolds389
WWUS51 KBUF 171721
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
121 PM EDT Sat Aug 17 2019
NYC051-069-171730-
/O.EXP.KBUF.SV.W.0089.000000T0000Z-190817T1715Z/
Livingston NY-Ontario NY-
121 PM EDT Sat Aug 17 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LIVINGSTON AND
CENTRAL ONTARIO COUNTIES HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.
LAT...LON 4269 7763 4290 7760 4297 7715 4276 7710
4276 7731 4273 7734 4269 7736
TIME...MOT...LOC 1720Z 261DEG 33KT 4283 7724
$$
ReynoldsThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 10:14 AM EDT | Special Marine Warning | BUF | 61 min | |
| Aug 17, 10:16 AM EDT | Special Weather Statement | BUF | Genesee | 44 min |
| Aug 17, 10:40 AM EDT | Special Weather Statement | BUF | Chautauqua | 35 min |
| Aug 17, 11:04 AM EDT | Special Weather Statement | BUF | Monroe | 56 min |
| Aug 17, 11:07 AM EDT | Special Weather Statement | BUF | Cattaraugus, Chautauqua, Erie, Wyoming | 53 min |
| Aug 17, 11:58 AM EDT | Special Weather Statement | BUF | Livingston, Ontario, Wyoming | 47 min |
| Aug 17, 1:16 PM EDT | Special Weather Statement | BUF | Ontario | 44 min |
| Aug 17, 1:31 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 40 min |
| Aug 17, 1:48 PM EDT | Special Weather Statement | BUF | Wyoming | 57 min |
| Aug 17, 2:04 PM EDT | Special Weather Statement | BUF | Cattaraugus | 56 min |
| Aug 17, 2:18 PM EDT | Special Weather Statement | BUF | Livingston | 27 min |
| Aug 17, 2:22 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 38 min |
| Aug 17, 2:48 PM EDT | Special Weather Statement | BUF | Livingston | 42 min |
| Aug 17, 2:58 PM EDT | Special Weather Statement | BUF | Cattaraugus | 47 min |
| Aug 17, 3:27 PM EDT | Special Weather Statement | BUF | Allegany | 33 min |
| Aug 17, 3:36 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 54 min |
| Aug 17, 4:06 PM EDT | Special Marine Warning | BUF | 39 min | |
| Aug 17, 4:19 PM EDT | Severe Thunderstorm Warning | BUF | Niagara, Orleans | 41 min |
Nearby
Severe Thunderstorm Warnings in New York, 2019Every severe thunderstorm warning in 2019
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.