Tuesday, March 30, 2010

Area Forecast Discussion - South Central/Southwest Missouri

FXUS63 KSGF 301714
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1215 PM CDT TUE MAR 30 2010

..AVIATION UPDATE...

UPDATE...

NUDGED UP HIGHS FOR TODAY BASED ON SHORT TERM TEMPERATURE TRENDS
AND MORNING RAOB. DESPITE FILTERED SUNSHINE FROM HIGH
CLOUDS...TEMPERATURES ARE HAVING LITTLE PROBLEM CLIMBING GIVEN THE
DRY AIRMASS. HAVE ALSO LOWERED HOURLY DEW POINT AND RELATIVE
HUMIDITY GRIDS AS AREA SOUNDINGS...KSGF...KOUN...KTOP...KSHV...ALL
INDICATE QUITE A DRY LAYER JUST OFF THE DECK. THIS WILL HAVE BIG
IMPACTS ON FIRE WEATHER. SEE DISCUSSION BELOW. FINALLY...HAVE
INCREASED WINDS ABOUT 5 MPH ACROSS MUCH OF THE AREA.

SCHAUMANN

&&

AVIATION...

PILOTS FLYING IN AND OUT OF THE SOUTHWEST MISSOURI AIRPORTS WILL
NEED TO MONITOR FOR LOW LEVEL WIND SHEAR OVER THE NEXT 24 HOURS.
PARTICULARLY TONIGHT...A 45 - 55 KNOT LOW LEVEL JET WILL ASSUME A
POSITION DIRECTLY OVER SOUTHWEST MISSOURI. SURFACE WINDS WILL ALSO
BE GUSTY...WITH SOME GUSTS IN EXCESS OF 25 KNOTS AT TIMES.

LOW PRESSURE DEVELOPING ACROSS THE PLAINS IS THE MAIN REASON FOR THE
INCREASING WINDS. MEANWHILE...NO LOW CEILINGS OR OBSTRUCTIONS TO
VISIBILITIES ARE EXPECTED OVER THE NEXT 24 HOURS.

CRAMER

&&

FIRE WEATHER...

HOISTED A RED FLAG WARNING FOR THIS AFTERNOON FOR AREAS ALONG AND
WEST OF THE HIGHWAY 65 CORRIDOR. DRIER AIR IS BEGINNING TO MIX
DOWN TO THE SURFACE...RESULTING IN RELATIVE HUMIDITIES ALREADY IN
THE UPPER 20 PERCENT RANGE AT THE NOON HOUR. SUSTAINED WINDS IN
THE 15 TO 25 MPH RANGE CONTINUE...WITH GUSTS OVER 35 MPH. WILL BE
LOOKING CLOSELY AT WEDNESDAY FOR POSSIBLE EXPANSION/UPGRADE OF
CURRENT FIRE WEATHER WATCH.

SCHAUMANN

&&

SGF WATCHES/WARNINGS/ADVISORIES...
MO...RED FLAG WARNING UNTIL 7 PM CDT THIS EVENING FOR MOZ055-066>068-
077>079-088>090-093>095-101>103.

FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY
EVENING FOR MOZ066-067-077-078-088-089-093-094.

KS...RED FLAG WARNING UNTIL 7 PM CDT THIS EVENING FOR KSZ073-097-101.

FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY
EVENING FOR KSZ073-097-101.

&&

$$

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