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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.
SEL6

URGENT – IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 46
NWS Storm Prediction Center Norman OK
1145 AM CDT Thu Mar 12 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
Southern Illinois
Southern Indiana
Western and Central Kentucky
Southeast Missouri
Northwest and North Central Tennessee

* Effective this Thursday morning and afternoon from 1145 AM
until 500 PM CDT.

* Primary threats include…
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible

SUMMARY…Multiple clusters of thunderstorms will track across the
watch area this afternoon, with a few supercell storms expected to
develop. Strengthening winds aloft will pose a risk of a tornadoes,
possibly strong. Hail and damaging winds are also possible with the
strongest storms.

The tornado watch area is approximately along and 75 statute miles
north and south of a line from 25 miles west southwest of Cape
Girardeau MO to 35 miles northeast of Bowling Green KY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).

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.

&&

AVIATION…Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 26035.

…Hart

SEL6

URGENT – IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 46
NWS Storm Prediction Center Norman OK
1145 AM CDT Thu Mar 12 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
Southern Illinois
Southern Indiana
Western and Central Kentucky
Southeast Missouri
Northwest and North Central Tennessee

* Effective this Thursday morning and afternoon from 1145 AM
until 500 PM CDT.

* Primary threats include…
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible

SUMMARY…Multiple clusters of thunderstorms will track across the
watch area this afternoon, with a few supercell storms expected to
develop. Strengthening winds aloft will pose a risk of a tornadoes,
possibly strong. Hail and damaging winds are also possible with the
strongest storms.

The tornado watch area is approximately along and 75 statute miles
north and south of a line from 25 miles west southwest of Cape
Girardeau MO to 35 miles northeast of Bowling Green KY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).

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.

&&

AVIATION…Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 26035.

…Hart

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW6
WW 46 TORNADO IL IN KY MO TN 121645Z – 122200Z
AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
25WSW CGI/CAPE GIRARDEAU MO/ – 35NE BWG/BOWLING GREEN KY/
..AVIATION COORDS.. 65NM N/S /37SSE FAM – 33NE BWG/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 26035.

LAT…LON 38168999 38418597 36248597 36008999

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.

Watch 46 Status Report Message has not been issued yet.

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

High (70%)

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

Mod (40%)

WindProbability of 10 or more severe wind events

Mod (60%)

Probability of 1 or more wind events > 65 knots

Low (20%)

HailProbability of 10 or more severe hail events

Mod (50%)

Probability of 1 or more hailstones > 2 inches

Mod (30%)

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

High (90%)

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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