Alert archive / New York / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 15, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 29, 2020, 1:43 PM EDT for 4 counties in New York. It was in force for 47 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
- May 29, 2020, 1:43 PM EDT (17:43 UTC)
- Expired
- May 29, 2020, 2:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Genesee County, NY, Monroe County, NY, Orleans County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 93 km from the middle of the area, began a volume at 17:46 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 29, 2:09 PM EDT | TSTM WND DMG | 2 Wnw Cobbs Hill, NY | TREE REPORTED DOWN ON MONROE AVE AT AVERILL AVE IN ROCHESTER. |
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, 5.7 hours before the alert went out and 91 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1304 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
190
WUUS51 KBUF 291743
SVRBUF
NYC037-055-073-117-291830-
/O.NEW.KBUF.SV.W.0015.200529T1743Z-200529T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
143 PM EDT Fri May 29 2020
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Northwestern Wayne County in western New York...
Southeastern Orleans County in western New York...
Monroe County in western New York...
Northeastern Genesee County in western New York...
* Until 230 PM EDT..
* At 143 PM EDT, a severe thunderstorm was located near Churchville,
or 9 miles south of Brockport, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Brockport, East Rochester,
Hilton, Webster, Brighton and Gates-North Gates.
This includes Interstate 90 near exit 47.
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 4314 7813 4335 7768 4328 7754 4332 7738
4333 7727 4321 7715 4297 7797
TIME...MOT...LOC 1743Z 241DEG 37KT 4307 7794
HAIL...0.75IN
WIND...60MPH
$$
Fries2 follow-up statements
882
WWUS51 KBUF 291803 RRA
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
203 PM EDT Fri May 29 2020
NYC037-073-291813-
/O.CAN.KBUF.SV.W.0015.000000T0000Z-200529T1830Z/
Orleans NY-Genesee NY-
203 PM EDT Fri May 29 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ORLEANS AND
NORTHEASTERN GENESEE COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4312 7791 4313 7791 4313 7792 4320 7798
4335 7768 4328 7754 4332 7738 4333 7727
4321 7715 4302 7783
TIME...MOT...LOC 1803Z 241DEG 37KT 4317 7769
$$
NYC055-117-291830-
/O.CON.KBUF.SV.W.0015.000000T0000Z-200529T1830Z/
Wayne NY-Monroe NY-
203 PM EDT Fri May 29 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR NORTHWESTERN WAYNE AND CENTRAL MONROE COUNTIES...
At 203 PM EDT, a severe thunderstorm was located over Gates-North
Gates, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Brockport, East Rochester,
Hilton, Webster, Brighton and Gates-North Gates.
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 4312 7791 4313 7791 4313 7792 4320 7798
4335 7768 4328 7754 4332 7738 4333 7727
4321 7715 4302 7783
TIME...MOT...LOC 1803Z 241DEG 37KT 4317 7769
HAIL...0.75IN
WIND...60MPH
$$
Reynolds970
WWUS51 KBUF 291830
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
230 PM EDT Fri May 29 2020
NYC055-117-291840-
/O.EXP.KBUF.SV.W.0015.000000T0000Z-200529T1830Z/
Wayne NY-Monroe NY-
230 PM EDT Fri May 29 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WAYNE AND CENTRAL
MONROE COUNTIES HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.
LAT...LON 4312 7791 4313 7791 4313 7792 4320 7798
4335 7768 4328 7754 4332 7738 4333 7727
4321 7715 4302 7783
TIME...MOT...LOC 1830Z 241DEG 37KT 4330 7737
$$
ReynoldsThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 11:03 AM EDT | Special Weather Statement | BUF | Lewis | 27 min |
| May 29, 12:15 PM EDT | Special Marine Warning | BUF | 42 min | |
| May 29, 12:18 PM EDT | Special Marine Warning | BUF | 27 min | |
| May 29, 12:32 PM EDT | Special Weather Statement | BUF | Erie | 43 min |
| May 29, 12:44 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Wyoming | 46 min |
| May 29, 12:55 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 21 min |
| May 29, 1:27 PM EDT | Special Weather Statement | BUF | Genesee | 33 min |
| May 29, 1:36 PM EDT | Special Marine Warning | BUF | 24 min | |
| May 29, 1:42 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Oswego | 34 min |
| May 29, 1:56 PM EDT | Beach Hazards Statement | BUF | Cayuga, Jefferson, Oswego | 14 hr |
| May 29, 1:57 PM EDT | Small Craft Advisory | BUF | 14 hr | |
| May 29, 1:58 PM EDT | Special Weather Statement | BUF | Cattaraugus | 32 min |
| May 29, 2:07 PM EDT | Special Marine Warning | BUF | 53 min | |
| May 29, 2:13 PM EDT | Special Weather Statement | BUF | Lewis | 32 min |
| May 29, 2:14 PM EDT | Special Weather Statement | BUF | Cattaraugus, Wyoming | 61 min |
| May 29, 2:22 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Erie, Livingston, Wyoming | 53 min |
| May 29, 2:33 PM EDT | Special Weather Statement | BUF | Wayne | 42 min |
| May 29, 2:39 PM EDT | Special Marine Warning | BUF | 53 min | |
| May 29, 3:03 PM EDT | Special Weather Statement | BUF | Oswego | 42 min |
| May 29, 3:07 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Wayne | 26 min |
| May 29, 3:23 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 47 min |
| May 29, 3:36 PM EDT | Special Marine Warning | BUF | 54 min | |
| May 29, 3:45 PM EDT | Special Weather Statement | BUF | Chautauqua | 45 min |
| May 29, 4:20 PM EDT | Special Weather Statement | BUF | Lewis | 25 min |
| May 29, 4:35 PM EDT | Special Weather Statement | BUF | Erie | 40 min |
| May 29, 4:40 PM EDT | Special Weather Statement | BUF | Lewis | 50 min |
| May 29, 4:51 PM EDT | Special Marine Warning | BUF | 24 min | |
| May 29, 4:51 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 40 min |
Nearby
Severe Thunderstorm Warnings in New York, 2020Every severe thunderstorm warning in 2020
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.