Alert archive / New York / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 54, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 27, 2018, 11:46 PM EDT for Jefferson County, New York. It was in force for 44 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 27, 2018, 11:46 PM EDT (03:46 UTC)
- Expired
- Aug 28, 2018, 12:30 AM EDT
- In force
- 44 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Jefferson County, NY
The radar
The Ft Drum radar (KTYX), 58 km from the middle of the area, began a volume at 03:48 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
Albany, NY (KALY), launched 00:00Z, 3.8 hours before the alert went out and 246 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
- 611 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
The text
As transmitted.
364
WUUS51 KBUF 280346
SVRBUF
NYC045-280430-
/O.NEW.KBUF.SV.W.0054.180828T0346Z-180828T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1146 PM EDT MON AUG 27 2018
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Central Jefferson County in central New York...
* Until 1230 AM EDT..
* At 1145 PM EDT, a severe thunderstorm was located near Cedar Point
State Park, or 24 miles northwest of Watertown, moving southeast at
55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Watertown, Fort Drum, Clayton, Dexter, Glen Park, Herrings,
Wellesley Island State Park and Cedar Point State Park.
This includes Interstate 81 between exits 45 and 51.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4420 7547 4390 7575 4412 7637 4414 7635
4420 7631 4420 7624 4422 7619 4424 7617
4428 7616 4430 7613 4430 7610 4434 7603
TIME...MOT...LOC 0345Z 295DEG 49KT 4421 7628
HAIL...<.75IN
WIND...60MPH
$$
TMA1 follow-up statement
204
WWUS51 KBUF 280431
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
1231 AM EDT TUE AUG 28 2018
NYC045-280440-
/O.EXP.KBUF.SV.W.0054.000000T0000Z-180828T0430Z/
Jefferson NY-
1231 AM EDT TUE AUG 28 2018
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JEFFERSON COUNTY HAS
EXPIRED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been allowed to expire.
LAT...LON 4420 7547 4390 7575 4412 7637 4414 7635
4420 7631 4420 7624 4422 7619 4424 7617
4428 7616 4430 7613 4430 7610 4434 7603
TIME...MOT...LOC 0430Z 295DEG 49KT 4396 7554
$$
TMAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 11:41 PM EDT | Special Marine Warning | BUF | 49 min | |
| Aug 28, 1:25 PM EDT | Small Craft Advisory | BUF | 29 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.