Alert archive / New York / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 40, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jun 29, 2019, 7:30 PM EDT for Jefferson County, New York. It was in force for 45 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
- Jun 29, 2019, 7:30 PM EDT (23:30 UTC)
- Expired
- Jun 29, 2019, 8:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Jefferson County, NY
The radar
The Ft Drum radar (KTYX), 40 km from the middle of the area, began a volume at 23:31 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 12:00Z, 11.5 hours before the alert went out and 228 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
- 24 J/kg
- Mixed-layer CIN
- -231 J/kg
- Mixed-layer LCL
- 1251 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
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
850 WUUS51 KBUF 292330 SVRBUF NYC045-300015- /O.NEW.KBUF.SV.W.0040.190629T2330Z-190630T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Buffalo NY 730 PM EDT Sat Jun 29 2019 The National Weather Service in Buffalo has issued a * Severe Thunderstorm Warning for... Central Jefferson County in central New York... * Until 815 PM EDT.. * At 730 PM EDT, a severe thunderstorm was located 8 miles north of Glen Park, or 11 miles northwest of Fort Drum, moving southeast at 30 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Watertown, Fort Drum, Herrings, Black River, Evans Mills, Deferiet, Great Bend, Calcium, Perch Lake and Rutland Center. This includes Interstate 81 between exits 47 and 48. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4413 7606 4419 7595 4403 7562 4389 7583 TIME...MOT...LOC 2330Z 319DEG 27KT 4413 7597 TORNADO...POSSIBLE HAIL...0.75IN WIND...60MPH $$ RSH
2 follow-up statements
220 WWUS51 KBUF 292354 SVSBUF Severe Weather Statement National Weather Service Buffalo NY 754 PM EDT Sat Jun 29 2019 NYC045-300015- /O.CON.KBUF.SV.W.0040.000000T0000Z-190630T0015Z/ Jefferson NY- 754 PM EDT Sat Jun 29 2019 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT FOR CENTRAL JEFFERSON COUNTY... At 753 PM EDT, a severe thunderstorm was located near Fort Drum, moving southeast at 20 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Watertown, Fort Drum, Herrings, Black River, Evans Mills, Deferiet, Great Bend, Calcium, Perch Lake and Rutland Center. This includes Interstate 81 between exits 47 and 48. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4413 7606 4419 7595 4403 7562 4389 7583 TIME...MOT...LOC 2353Z 316DEG 19KT 4404 7585 TORNADO...POSSIBLE HAIL...0.75IN WIND...60MPH $$ RSH
496
WWUS51 KBUF 300013
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
813 PM EDT Sat Jun 29 2019
NYC045-300023-
/O.EXP.KBUF.SV.W.0040.000000T0000Z-190630T0015Z/
Jefferson NY-
813 PM EDT Sat Jun 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JEFFERSON COUNTY WILL
EXPIRE AT 815 PM EDT...
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 will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Buffalo.
LAT...LON 4413 7606 4419 7595 4403 7562 4389 7583
TIME...MOT...LOC 0013Z 319DEG 27KT 4394 7573
$$
RSHThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:03 AM EDT | Special Marine Warning | BUF | 27 min | |
| Jun 29, 1:23 AM EDT | Special Weather Statement | BUF | Chautauqua | 67 min |
| Jun 29, 10:15 AM EDT | Special Weather Statement | BUF | Cattaraugus | 30 min |
| Jun 29, 1:35 PM EDT | Special Weather Statement | BUF | Allegany | 25 min |
| Jun 29, 5:27 PM EDT | Special Marine Warning | BUF | 63 min | |
| Jun 29, 5:36 PM EDT | Special Marine Warning | BUF | 84 min | |
| Jun 29, 6:31 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson | 59 min |
| Jun 29, 6:38 PM EDT | Special Marine Warning | BUF | 22 min | |
| Jun 29, 7:13 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 62 min |
| Jun 29, 7:22 PM EDT | Tornado Warning | BUF | Jefferson, Lewis | 23 min |
| Jun 29, 7:52 PM EDT | Special Marine Warning | BUF | 23 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.