Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 94, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 4, 2017, 3:38 PM EDT for Jefferson County, New York. It was in force for 57 min. 2 reports 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
- Aug 4, 2017, 3:38 PM EDT (19:38 UTC)
- Expired
- Aug 4, 2017, 4:35 PM EDT
- In force
- 57 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Jefferson County, NY
The radar
The Ft Drum radar (KTYX), 48 km from the middle of the area, began a volume at 19:39 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 |
|---|---|---|---|
| Aug 4, 3:50 PM EDT | TSTM WND DMG | Philadelphia, NY | TREES AND POWERLINES DOWN |
| Aug 4, 4:22 PM EDT | TSTM WND DMG | Redwood, NY | TREES AND POWERLINES DOWN |
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 |
|---|---|---|---|
| Aug 4, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 7.6 hours before the alert went out and 223 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
- 160 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
712
WUUS51 KBUF 041938
SVRBUF
NYC045-042045-
/O.NEW.KBUF.SV.W.0094.170804T1938Z-170804T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
338 PM EDT FRI AUG 4 2017
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Northeastern Jefferson County in central New York...
* Until 445 PM EDT.
* At 337 PM EDT, a severe thunderstorm was located over Fort Drum,
moving north at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect wind damage
to trees and power lines.
* Locations impacted include...
Watertown, Fort Drum, Carthage, West Carthage, Herrings, Redwood,
Black River and Philadelphia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4440 7584 4437 7578 4422 7546 4416 7549
4411 7554 4410 7553 4397 7561 4398 7589
TIME...MOT...LOC 1937Z 189DEG 21KT 4405 7576
HAIL...1.00IN
WIND...60MPH
$$
Smith2 follow-up statements
067
WWUS51 KBUF 042003
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
403 PM EDT FRI AUG 4 2017
NYC045-042045-
/O.CON.KBUF.SV.W.0094.000000T0000Z-170804T2045Z/
Jefferson NY-
403 PM EDT FRI AUG 4 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHEASTERN JEFFERSON COUNTY...
At 402 PM EDT, a severe thunderstorm was located 8 miles north of
Fort Drum, moving north at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Trained weather spotters have reported wind damage with
this storm.
IMPACT...Minor damage to vehicles is possible. Wind damage to trees
and power lines is occuring.
Locations impacted include...
Redwood, Philadelphia, Theresa, Antwerp, Plessis, Oxbow and
Muskellunge Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of
a building.
&&
LAT...LON 4438 7581 4427 7557 4411 7567 4413 7587
4440 7584
TIME...MOT...LOC 2002Z 193DEG 18KT 4417 7572
HAIL...1.00IN
WIND...60MPH
$$
Smith469
WWUS51 KBUF 042035
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
435 PM EDT FRI AUG 4 2017
NYC045-042044-
/O.CAN.KBUF.SV.W.0094.000000T0000Z-170804T2045Z/
Jefferson NY-
435 PM EDT FRI AUG 4 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JEFFERSON COUNTY
IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.
A severe thunderstorm watch remains in effect until 900 PM EDT for
central New York.
LAT...LON 4438 7581 4427 7557 4411 7567 4413 7587
4440 7584
TIME...MOT...LOC 2032Z 189DEG 21KT 4436 7568
$$
SmithThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 9:28 PM EDT | Small Craft Advisory | BUF | 54 hr | |
| Aug 4, 8:45 AM EDT | Special Weather Statement | BUF | Wayne | 30 min |
| Aug 4, 8:52 AM EDT | Special Marine Warning | BUF | 53 min | |
| Aug 4, 11:40 AM EDT | Special Marine Warning | BUF | 65 min | |
| Aug 4, 11:53 AM EDT | Special Weather Statement | BUF | Wayne | 37 min |
| Aug 4, 12:22 PM EDT | Special Marine Warning | BUF | 53 min | |
| Aug 4, 12:27 PM EDT | Severe Thunderstorm Warning | BUF | Erie | 63 min |
| Aug 4, 12:55 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 50 min |
| Aug 4, 1:05 PM EDT | Severe Thunderstorm Warning | BUF | Genesee | 31 min |
| Aug 4, 1:08 PM EDT | Special Marine Warning | BUF | 52 min | |
| Aug 4, 1:13 PM EDT | Severe Thunderstorm Warning | BUF | Niagara, Orleans | 62 min |
| Aug 4, 1:41 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 49 min |
| Aug 4, 1:59 PM EDT | Special Marine Warning | BUF | 61 min | |
| Aug 4, 3:00 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 45 min |
| Aug 4, 3:22 PM EDT | Special Marine Warning | BUF | 53 min | |
| Aug 4, 3:42 PM EDT | Special Marine Warning | BUF | 63 min | |
| Aug 4, 4:02 PM EDT | Special Marine Warning | BUF | 118 min | |
| Aug 4, 4:14 PM EDT | Special Marine Warning | BUF | 61 min | |
| Aug 4, 4:17 PM EDT | Special Marine Warning | BUF | 88 min | |
| Aug 4, 4:26 PM EDT | Special Marine Warning | BUF | 34 min | |
| Aug 4, 4:27 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Oswego | 33 min |
| Aug 4, 4:45 PM EDT | Special Marine Warning | BUF | 2 hr | |
| Aug 4, 4:46 PM EDT | Special Marine Warning | BUF | 89 min | |
| Aug 4, 5:00 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara | 45 min |
| Aug 4, 5:04 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego | 41 min |
| Aug 4, 5:23 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston | 67 min |
| Aug 4, 5:39 PM EDT | Special Marine Warning | BUF | 36 min | |
| Aug 4, 5:51 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 54 min |
| Aug 4, 6:38 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 52 min |
| Aug 4, 7:09 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 66 min |
| Aug 4, 7:15 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 60 min |
Nearby
Severe Thunderstorm Warnings in New York, 2017Every severe thunderstorm warning in 2017
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.