Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO

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000
FXUS63 KEAX 251727
AFDEAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1227 PM CDT Sat Oct 25 2014

.UPDATE...
Issued at 544 AM CDT SAT OCT 25 2014

Trends on satellite and observations show dense fog across northern
Missouri building south and west toward northern portions of the KC
metro toward Chariton and Carroll Counties. Additional fog is
developing over eastern KS spreading into western portions of the KC
area. Will therefore expand the dense fog advisory into a few more
counties, although these areas should see fog that is more patchy in
nature compared to areas further northeast. Meanwhile drying coming
in from Iowa is causing fog to scour out across northern MO so
advisory will be dropped for a few counties up that way.

&&

.DISCUSSION...
Issued at 308 AM CDT SAT OCT 25 2014

Fog has developed across much of north central and northeast Missouri
early this morning where a dense fog advisory is in effect through 9
AM. Fog is more patchy in nature further west toward the Missouri
River, but with river valley locations already fogging up and SREF
probabilities suggesting fog will build westward, went ahead and
expanded the dense fog advisory further west into northwest MO.

Once fog and any remnant stratus burn off this morning, clear skies
will be the rule across the region through the day with highs rising
into the middle and upper 70s. Models have slowed down the surge of
warmer 925 hPa temps, which makes sense given backed low-level flow,
so highs were nudged down a few degrees with 80 degree readings
likely having to wait until Sunday. Veering flow on Sunday will
bring most areas into the lower 80s except the Kirksville area where
winds will remain more backed. These readings will be almost 20
degrees above average but a few degrees shy of records.

A fairly deep upper-level trough will traverse the center of the
country Monday and Tuesday, sending a cold front into the area Monday
afternoon and evening. Despite the warm airmass ahead of the front,
dry low-levels and a low-level temperature inversion will
significantly limit instability. Thus the potential for any robust
storms is low. Broad northwest flow behind the front will keep us dry
through the remainder of the week while temperatures return to
seasonable levels. A deep surface high may finally bring the
first real threat of frost/freeze to the region by Friday night.

&&

.AVIATION...(For the 18Z TAFS through 18Z Sunday Afternoon)
Issued at 1217 PM CDT SAT OCT 25 2014

VFR conditions expected throughout the afternoon/evening hours
Saturday with NE winds transitioning to SE through the forecast
period. Conditions are once again favorable for fog development at
the terminals overnight with the moist boundary layer in place. Also,
expecting to see some low-level cloud formation during the early
morning hours Sunday ahead of a warm front edging in from the SW.
This will likely present a case for IFR conditions until the fog and
low cloud layer scatter out in the mid to late morning hours Sunday.

&&

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

$$

UPDATE...Hawblitzel
DISCUSSION...Hawblitzel
AVIATION...Welsh






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