MIL-OSI USA: SPC Tornado Watch 519

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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.
SEL9

URGENT – IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 519
NWS Storm Prediction Center Norman OK
920 PM CDT Sun Oct 10 2021

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
northwest Arkansas
southeast Kansas
southwest Missouri
eastern Oklahoma

* Effective this Sunday night and Monday morning from 920 PM
until 200 AM CDT.

* Primary threats include…
A few tornadoes possible
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible

SUMMARY…Squall line with bowing segments and embedded mesovortices
will continue to pose a risk for damaging wind and isolated
tornadoes as it continues through eastern Oklahoma and toward the
Ozarks area tonight.

The tornado watch area is approximately along and 55 statute miles
east and west of a line from 35 miles northwest of Joplin MO to 35
miles west southwest of De Queen AR. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS…

REMEMBER…A Tornado Watch means conditions are favorable for
tornadoes and 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.

&&

OTHER WATCH INFORMATION…CONTINUE…WW 517…WW 518…

AVIATION…Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 26040.

…Dial

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW9
WW 519 TORNADO AR KS MO OK 110220Z – 110700Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
35NW JLN/JOPLIN MO/ – 35WSW DEQ/DE QUEEN AR/
..AVIATION COORDS.. 50NM E/W /25NNE OSW – 49WNW TXK/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26040.

LAT…LON 37509395 33849401 33849592 37509595

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.

Watch 519 Status Report Message has not been issued yet.

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

Mod (50%)

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

Low (20%)

WindProbability of 10 or more severe wind events

Mod (60%)

Probability of 1 or more wind events > 65 knots

Mod (30%)

HailProbability of 10 or more severe hail events

Mod (30%)

Probability of 1 or more hailstones > 2 inches

Low (20%)

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

High (80%)

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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