Alert archive / New York / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 93, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 17, 2019, 4:19 PM EDT for Niagara County, Orleans 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
- Aug 17, 2019, 4:19 PM EDT (20:19 UTC)
- Expired
- Aug 17, 2019, 5:00 PM EDT
- In force
- 41 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Niagara County, NY, Orleans County, NY
The radar
The Buffalo radar (KBUF), 41 km from the middle of the area, began a volume at 20:22 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, 8.3 hours before the alert went out and 43 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.
970
WUUS51 KBUF 172019
SVRBUF
NYC063-073-172100-
/O.NEW.KBUF.SV.W.0093.190817T2019Z-190817T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
419 PM EDT Sat Aug 17 2019
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Northeastern Niagara County in western New York...
Northwestern Orleans County in western New York...
* Until 500 PM EDT..
* At 419 PM EDT, a severe thunderstorm was located over Newfane, or
10 miles north of Lockport, moving southeast at 20 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...
Medina, Newfane, Middleport, Ridgeway, Wilson, Lyndonville, Barker,
Gasport, Olcott and Appleton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4337 7879 4340 7863 4334 7833 4311 7848
4328 7885
TIME...MOT...LOC 2019Z 295DEG 16KT 4332 7872
HAIL...1.00IN
WIND...60MPH
$$
Mitchell2 follow-up statements
896
WWUS51 KBUF 172044
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
444 PM EDT Sat Aug 17 2019
NYC063-073-172100-
/O.CON.KBUF.SV.W.0093.000000T0000Z-190817T2100Z/
Niagara NY-Orleans NY-
444 PM EDT Sat Aug 17 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHEASTERN NIAGARA AND NORTHWESTERN ORLEANS COUNTIES...
At 444 PM EDT, a severe thunderstorm was located 7 miles northwest of
Middleport, or 9 miles northwest of Medina, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Medina, Middleport, Ridgeway, Lyndonville, Barker, Appleton and
Gasport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4336 7865 4339 7858 4334 7833 4311 7848
4329 7867
TIME...MOT...LOC 2044Z 284DEG 17KT 4331 7854
HAIL...1.00IN
WIND...60MPH
$$
Mitchell877
WWUS51 KBUF 172101
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
501 PM EDT Sat Aug 17 2019
NYC063-073-172110-
/O.EXP.KBUF.SV.W.0093.000000T0000Z-190817T2100Z/
Niagara NY-Orleans NY-
501 PM EDT Sat Aug 17 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NIAGARA AND
NORTHWESTERN ORLEANS COUNTIES HAS EXPIRED...
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 has been allowed to expire.
LAT...LON 4336 7865 4339 7858 4334 7833 4311 7848
4329 7867
TIME...MOT...LOC 2100Z 295DEG 16KT 4328 7846
$$
MitchellThe 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, 12:37 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Ontario | 38 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 |
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.