Alert archive / New York / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 4, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 4, 2018, 4:10 PM EDT for 4 counties in New York. It was in force for 35 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 4, 2018, 4:10 PM EDT (20:10 UTC)
- Expired
- May 4, 2018, 4:45 PM EDT
- In force
- 35 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Genesee County, NY, Monroe County, NY, Orleans County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 20:14 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 4, 4:30 PM EDT | TSTM WND DMG | 3 Nw Rochester, NY | TREE DOWN ON HOUSE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 4, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.2 hours before the alert went out and 86 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
- 4 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
992
WUUS51 KBUF 042010
SVRBUF
NYC037-055-073-117-042045-
/O.NEW.KBUF.SV.W.0004.180504T2010Z-180504T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
410 PM EDT FRI MAY 4 2018
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Western Wayne County in western New York...
Southeastern Orleans County in western New York...
Monroe County in western New York...
Eastern Genesee County in western New York...
* Until 445 PM EDT.
* At 409 PM EDT, a severe thunderstorm was located over Batavia,
moving northeast at 75 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Batavia, Brockport, East
Rochester and Webster.
This includes the following highways...
Interstate 390 between exits 11 and 12.
Interstate 90 between exits 48 and 46.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4291 7822 4307 7830 4332 7762 4328 7754
4332 7738 4333 7714 4305 7699 4303 7713
4304 7748 4300 7749 4297 7773 4298 7772
4299 7773 4299 7791 4295 7791
TIME...MOT...LOC 2009Z 245DEG 67KT 4302 7815
HAIL...<.75IN
WIND...70MPH
$$
Church1 follow-up statement
050
WWUS51 KBUF 042037
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
437 PM EDT FRI MAY 4 2018
NYC037-055-073-117-042046-
/O.EXP.KBUF.SV.W.0004.000000T0000Z-180504T2045Z/
Wayne NY-Orleans NY-Monroe NY-Genesee NY-
437 PM EDT FRI MAY 4 2018
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WAYNE...SOUTHEASTERN
ORLEANS...MONROE AND EASTERN GENESEE COUNTIES WILL EXPIRE AT 445 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
are still possible with this thunderstorm.
A severe thunderstorm watch remains in effect until 900 PM EDT for
western New York.
LAT...LON 4291 7822 4307 7830 4332 7762 4328 7754
4332 7738 4333 7714 4305 7699 4303 7713
4304 7748 4300 7749 4297 7773 4298 7772
4299 7773 4299 7791 4295 7791
TIME...MOT...LOC 2036Z 245DEG 67KT 4322 7756
$$
ChurchThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 12:20 AM EDT | Dense Fog Advisory | BUF | Erie, Jefferson, Niagara | 5 hr |
| May 4, 3:58 AM EDT | Wind Advisory | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more | 19 hr |
| May 4, 4:02 AM EDT | Gale Warning | BUF | 16 hr | |
| May 4, 2:18 PM EDT | Special Weather Statement | BUF | Allegany, Cattaraugus, Chautauqua, Erie, Livingston, Wyoming | 57 min |
| May 4, 3:35 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 55 min |
| May 4, 4:04 PM EDT | High Wind Warning | BUF | Erie, Genesee, Jefferson, Lewis, Niagara, Orleans | 7 hr |
| May 4, 4:05 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson | 40 min |
| May 4, 4:27 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 33 min |
| May 4, 4:46 PM EDT | Special Marine Warning | BUF | 59 min | |
| May 4, 4:50 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 22 min |
| May 4, 4:59 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Jefferson, Lewis, Oswego | 61 min |
| May 4, 5:32 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 58 min |
| May 4, 5:44 PM EDT | Severe Thunderstorm Warning | BUF | Lewis, Oswego | 61 min |
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.