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Area forecast discussion
National Weather Service Lincoln Illinois
1156 PM CDT sun Sep 24 2017

Update...
issued at 1010 PM CDT sun Sep 24 2017

Going forecast did not need any changes aside from hourly tweaks
for the rest of the night. Our persistent quiet weather pattern
continues, with light winds and minimal cloud cover anticipated.

&&

Short term...(this evening through monday)
issued at 147 PM CDT sun Sep 24 2017

Upper level high pressure will remain in place over the eastern
Great Lakes through Monday, keeping the unseasonably warm air in
place for our area. Highs on Monday are again expected to reach
the lower 90s, which should threaten records in a few areas.

Long term...(monday night through sunday)
issued at 147 PM CDT sun Sep 24 2017

The upper high will finally start to break down Tuesday and
Wednesday, as Hurricane Maria moves northward off the Carolina
coast. This will allow low pressure currently aloft over Utah to
eject northeast, giving a frontal boundary over the plains a shove
eastward. This front will be coming through our area Tuesday
night, but due to an easterly flow across the Gulf states, there
will not be much of a return moisture flow. Thus, most areas will
see a dry frontal passage. The European model (ecmwf) and especially the GFS hint
at perhaps some showers Wednesday afternoon as the front exits the
southeast cwa, but confidence there is low at the present time.

The main feature of note will be the end of the prolonged heat
wave. The southeast County Warning Area may still reach the mid 80s on Wednesday
before the front arrives, but much cooler and drier air will be
working its way into the region. Temperatures by Thursday should
largely be back to normal, with the cooler pattern continuing into
the weekend.

&&

Aviation...(for the 06z tafs through 06z Monday night)
issued at 1152 PM CDT sun Sep 24 2017

Quiet/VFR aviation weather condtions expected once again for the
06z taf valid time across the central Illinois terminals. Light
south to southeast winds will persist, along with minimal cloud
cover. The clouds will be most numerous during peak diurnal
heating Monday.

&&

Climate...
issued at 147 PM CDT sun Sep 24 2017

Record highs for Monday and tuesday:

Location Monday Tuesday
Sep 25 Sep 26
-------------- ------- -------
Bloomington... 93/2007 93/1897
Champaign..... 96/1891 94/1897
Charleston.... 91/2016 92/1897
Danville...... 94/1897 91/1897
Decatur....... 91/1939 96/1897
Effingham..... 92/2007 93/1897
Galesburg..... 90/2007 92/1897
Jacksonville.. 93/2007 97/1897
Lincoln....... 92/1920 91/1953
Olney......... 92/2007 94/1897
Peoria........ 92/1891 93/1897
Springfield... 94/1891 92/1897

&&

Ilx watches/warnings/advisories...
none.
&&

$$

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