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Source: US National Oceanic and Atmospheric Administration

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.Note: Click for Watch Status Reports.
SEL5

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 235
NWS Storm Prediction Center Norman OK
255 PM EDT Fri May 29 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Far northeast New York
Vermont

* Effective this Friday afternoon and evening from 255 PM until
900 PM EDT.

* Primary threats include…
Scattered damaging wind gusts to 65 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible

SUMMARY…A supercell or two embedded within multiple clusters may
progress across the Champlain Valley and parts of Vermont through
mid-evening. Locally damaging winds should be the main hazard.

The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 40 miles northeast of
Burlington VT to 60 miles southwest of Montpelier VT. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).

PRECAUTIONARY/PREPAREDNESS ACTIONS…

REMEMBER…A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION…CONTINUE…WW 234…

AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
22030.

…Grams

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW5
WW 235 SEVERE TSTM NY VT 291855Z – 300100Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
40NE BTV/BURLINGTON VT/ – 60SW MPV/MONTPELIER VT/
..AVIATION COORDS.. 50NM E/W /40N MPV – 53SW MPV/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..55 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 22030.

LAT…LON 44877144 43587231 43587451 44877369

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.

Watch 235 Status Report Message has not been issued yet.

Note:  Click for Complete Product Text.TornadoesProbability of 2 or more tornadoes

Low (20%)

Probability of 1 or more strong (EF2-EF5) tornadoes

Low (5%)

WindProbability of 10 or more severe wind events

Mod (40%)

Probability of 1 or more wind events > 65 knots

Low (20%)

HailProbability of 10 or more severe hail events

Low (20%)

Probability of 1 or more hailstones > 2 inches

Low (10%)

Combined Severe Hail/WindProbability of 6 or more combined severe hail/wind events

Mod (60%)

For each watch, probabilities for particular events inside the watch (listed above in each table) are determined by the issuing forecaster. The “Low” category contains probability values ranging from less than 2% to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities), “Moderate” from 30% to 60%, and “High” from 70% to greater than 95%. High values are bolded and lighter in color to provide awareness of an increased threat for a particular event.

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