Area Forecast Discussion
Issued by NWS Central Illinois

Home | Current Version | Previous Version | Graphics & Text | 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 170840

Area Forecast Discussion
National Weather Service Lincoln IL
340 AM CDT Sat Mar 17 2018

.SHORT TERM...(Today and tonight)
ISSUED AT 340 AM CDT Sat Mar 17 2018

A brief period of light freezing rain will be possible across the
far northern KILX CWA early this morning: however, with air
temperatures hovering right at 32F and relatively warm/wet ground
conditions, do not think icing will be a major problem. Am
expecting some minor ice accumulations mainly on trees/elevated
surfaces along and north of a
Bloomington line. Any early morning freezing rain will quickly
transition to rain as temps edge above freezing by 14z/9am.
Further south, may see a few light rain showers but precip amounts
will remain quite light. The showers will gradually taper off by
early to mid-afternoon: however, little or no clearing will occur
until evening. Once the upper low responsible for the precip
shifts off to the east, subsidence on the back side of the low
and a dry northerly flow will allow the clouds to slowly scatter
from north to south tonight. Based on forecast soundings,
locations along/north of I-74 will clear this evening...with the
far S/SE CWA likely remaining mostly cloudy until closer to dawn


.LONG TERM...(Sunday through Friday)
ISSUED AT 340 AM CDT Sat Mar 17 2018

Relatively quiet late winter weather will prevail through the
extended...with no significant storm systems and no major
temperature swings expected. Low pressure will track south of
Illinois on Monday, bringing light rain to the area. As colder air
is drawn southward on the back side of the departing low, the rain
will change to snow Monday night, with a minor accumulation of
less than 1 inch expected on grassy surfaces. A period of cool/dry
weather is then anticipated Tuesday through Thursday before the
next storm system brings rain back into the picture by Friday.


.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
Issued at 1149 PM CDT Fri Mar 16 2018

A band of showers and isolated thunderstorms will exit central
Illinois over the next few hours. Then, after a lull in the
precipitation threat, additional showers may impact mainly KPIA,
KBMI, and KCMI late tonight/Saturday morning. There is a chance
some of this second round of rainfall may fall with freezing
temperatures for a few hours, posing a light icing risk.

A dry air mass has and kept CIGS/VSBYS high for the most part.
However, expect the lower levels to eventually saturate over the
next few hours with low-end MVFR or possibly IFR conditions
developing into Saturday.

Easterly winds will prevail for much of the night. However, they
will trend more northeast as the system producing the
precipitation shifts off to the east.




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