Alert archive / New York / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 41, NWS Burlington, VT

July 10, 2024St. Lawrence County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jul 10, 2024, 1:11 PM EDT for St. Lawrence County, New York. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 2024, 1:11 PM EDT (17:11 UTC)
Expired: Jul 10, 2024, 2:00 PM EDT
In force: 49 min
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County St. Lawrence County, NY

The radar

The Ft Drum radar (KTYX), 94 km from the middle of the area, began a volume at 17:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 10, 12:06 PM EDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.2 hours before the alert went out and 226 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 565 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 986 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Burlington, VT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 10:45 AM EDT, 2 hours 26 minutes earlier.

Area forecast discussion, Jul 10, 10:45 AM EDT, 2 hours 26 minutes before

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Hazardous weather outlook, Jul 10, 12:11 PM EDT, 1 hour before

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In the hours before

Special weather statement, Jul 10, 11:18 AM EDT, 1 hour 53 minutes before

Special Weather Statement
National Weather Service Burlington VT
1118 AM EDT Wed Jul 10 2024

NYZ026-029-030-087-101615-
Northern St. Lawrence NY-Southeastern St. Lawrence NY-
Southern Franklin NY-Southwestern St. Lawrence NY-
1118 AM EDT Wed Jul 10 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN FRANKLIN AND ST.
LAWRENCE COUNTIES THROUGH 1215 PM EDT...

At 1118 AM EDT, Doppler radar was tracking a strong thunderstorm near
Gouverneur, moving northeast at 40 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Potsdam, Gouverneur, Canton, Oswegatchie, De Kalb, Fowler, Colton,
Morley, Degrasse, Richville, Cranberry Lake, Rensselaer Falls,
Hermon, Horseshoe Lake, Star Lake, Norwood, Madrid, Pierrepont,
Russell, and Fine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4480 7504 4410 7448 4406 7508 4437 7580
TIME...MOT...LOC 1518Z 238DEG 35KT 4426 7554

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Kremer

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 1:17 PM EDT	Heat Advisory	BTV	Addison, Rutland, Windsor	6 hr
Jul 10, 4:31 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden	23 min
Jul 10, 4:39 PM EDT	Areal Flood Warning	BTV	Addison, Chittenden, Grand Isle	3 hr
Jul 10, 4:51 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Lamoille, Washington	54 min
Jul 10, 5:38 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Orange, Washington, Windsor	52 min
Jul 10, 5:41 PM EDT	Special Weather Statement	BTV	Caledonia, Washington	64 min
Jul 10, 5:56 PM EDT	Flash Flood Warning	BTV	Addison, Chittenden, Lamoille, Washington	13 hr
Jul 10, 6:23 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Orange, Washington	67 min
Jul 10, 6:33 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden	42 min
Jul 10, 6:38 PM EDT	Flash Flood Warning	BTV	Addison, Caledonia, Chittenden, Essex, Lamoille, Orange and 2 more	12 hr
Jul 10, 7:16 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex, Orange, Washington	44 min
Jul 10, 7:28 PM EDT	Special Weather Statement	BTV	Washington	47 min
Jul 10, 11:18 AM EDT	Special Weather Statement	BTV	St. Lawrence	57 min
Jul 10, 2:54 PM EDT	Special Weather Statement	BTV	Essex	66 min
Jul 10, 3:16 PM EDT	Severe Thunderstorm Warning	BTV	Essex, Franklin	59 min
Jul 10, 3:27 PM EDT	Tornado Warning	BTV	Essex, Franklin	33 min
Jul 10, 3:50 PM EDT	Flash Flood Warning	BTV	Essex, Franklin	15 hr
Jul 10, 3:59 PM EDT	Severe Thunderstorm Warning	BTV	Essex	34 min
Jul 10, 4:46 PM EDT	Severe Thunderstorm Warning	BTV	Essex	59 min
Jul 10, 5:25 PM EDT	Areal Flood Warning	BTV	Essex, Franklin, St. Lawrence	6 hr
Jul 10, 7:31 PM EDT	Severe Thunderstorm Warning	BTV	Essex	59 min

Nearby

Severe Thunderstorm Warnings in New York, 2024 Every severe thunderstorm warning in 2024

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.