Area Forecast Discussion
Issued by NWS Central Illinois

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
FXUS63 KILX 271951

Area Forecast Discussion
National Weather Service Lincoln IL
251 PM CDT Tue Jun 27 2017

.SHORT TERM...(This evening through Wednesday)
ISSUED AT 251 PM CDT Tue Jun 27 2017

High pressure will continue to move off to the east as the upper
level pattern becomes zonal. Dry weather is expected tonight
through tomorrow morning, but with the high to the east, southerly
winds will return to the area during the day Wed and bring warmer
temps and higher dwpts into the area for the rest of the week.
Also expecting a storm complex to develop out west in eastern NE
late tonight and then move east across IA through tomorrow
morning. An associated outflow boundary from this storm complex
should be located across northwest IL tomorrow afternoon. With the
increasing moisture, chance for storms will return for Wed


.LONG TERM...(Wednesday night through Tuesday)
ISSUED AT 251 PM CDT Tue Jun 27 2017

As this first complex of storms redevelops and moves into the
Great Lakes region, the associated cold front/outflow boundary
will begin to lay out over parts of central IL, resulting in storm
possibilities continuing and increasing Wed night...with the
highest pops being in the north part of the CWA. The chance of
storms will continue Thur during the day, but greater chances are
expected Thursday night into Friday as another complex of storms
develops out in the plains and then moves toward the area late
Thur night into Friday. As the upper level pattern begins to
change from being zonal to a trough across the center of the US,
the chance of storms will continue into Friday night, but mainly
across the eastern and southeastern parts of the CWA.

Dry weather is then expected Sat and Sat night as the frontal
system pushes east and the pattern becomes northwest flow. This
pattern change will not bring a return to dry weather, but instead
bring periodic chances of storms for the latter part of the
weekend and into next week.

Temps will remain warm through the Long Term period even with
clouds/precip and a change to a northwest flow over the weekend.


.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1249 PM CDT Tue Jun 27 2017

VFR conditions will prevail at all TAF sites next 24hrs. Most
sites will remain SKC remainder of the afternoon and this evening.
Around midnight cirrus will begin to advect over the sites, but
only few cirrus. By morning cirrus clouds will begin to increase
and become broken. With high pressure still dominating winds will
remain light and variable until the ridge moves east later
tonight. Then winds become southerly overnight and then increase
in speed with gusts over 20kts starting around 14-15z.




AVIATION...Auten is the U.S. government's official web portal to all federal, state and local government web resources and services.