Severe Thunderstorm Warning 140, NWS Springfield, MO

Area Forecast Discussion
National Weather Service Springfield MO
302 PM CDT Sun Jul 17 2022

Key Messages:

1. Severe thunderstorm potential late this afternoon and evening.

2. Hot again by Tuesday through Saturday.

3. No obvious rain chances next week.

.SHORT TERM...(This evening through Monday)

An interesting setup in terms of severe weather potential has
evolved across portions of the Missouri Ozarks. A summertime
airmass with PWATS containing 1.70 plus resides over the area with
effective deep shear of 25 to 35 knots. A broad upper level
trough was positioned over the region, helping to provide some
synoptic scale lift.

We launched a special ROAB which measured 80 j/kg of low level
cape from a mixed layer parcel. We also noticed a decent dry layer
below 700 mb, which will aid in downburst potential with any deep
updrafts that develop over the next few hours. With that said, we
think damaging wind gusts will be the primary risk with some of
the most intense storms today.

Overnight lows will fall into the upper 60s in most locations as
storms exit southern Missouri by late evening.

For Monday, a typical summer day is on tap with highs in the
upper 80s to mid 90s. No rain chances were needed in Monday's
forecast as a dry continental airmass spreads into the area from
the upper midwest.

.LONG TERM...(Tuesday through Sunday)

By Tuesday, the summertime high will shift closer to the Ozarks,
causing temperatures to trend upward a tad. However, dew points
should be in the 50s and 60s, so heat index values will be limited
despite upper 90s and lower 100 max temps.

Wednesday through Friday will all be similar in nature, with highs
in the upper 90s to lower 100s. Again, dew points do not appear to
be overly bullish. There remains no obvious signals for
precipitation chances in terms of synoptic scale lifting
mechanisms or pulse thunderstorm processes.

The summertime high is progged by numerous operational and
ensemble models to build directly over the region by this
weekend. This could be a problem in terms of pushing heat index
values over advisory and possibly warning criteria.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)

Pilots flying in and out of the southwest Missouri airports may
need to monitor radar trends this afternoon and evening.

Showers and thunderstorms are expected to develop across the
region. Not all areas will receive storms as this activity will be
more scattered in nature. However, a few of the more intense
storms could produce damaging wind gusts up to 60 knots and small
hail. Therefore, if an airport is directly impacted, then flight
conditions could deteriorate for small windows of time.

Thunderstorms will exit the region by mid evening, bringing fair
weather VFR conditions tonight and into Monday.

Safe Travels.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

SHORT TERM...Cramer
LONG TERM...Cramer
AVIATION...Cramer

Hazardous Weather Outlook
National Weather Service Springfield MO
226 PM CDT Sun Jul 17 2022

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-181930-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
226 PM CDT Sun Jul 17 2022

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Today and Tonight.

Weather hazards expected...

 Limited hail risk.
 Limited thunderstorm wind damage risk.
 Elevated lightning risk.
 Limited excessive heat risk.

DISCUSSION...

Scattered strong to severe thunderstorms will be possible this
afternoon and into tonight. The primary concerns will be damaging
wind gusts up to 65 mph. There is also a limited risk for hail up
to the size or quarters with a few of the more intense storms.
Storms will exit the region by late evening.

A few areas will experience afternoon and early evening heat index
values in the upper 90s to lower 100s.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Afternoon max temperatures in the upper 90s to lower 100s will be
possible on a daily basis from Tuesday through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed later today or tonight for for
areas south of Interstate 44 and east of Highway 65.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/dsspacket

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Cramer