197
FNUS73 KILX 111313
FWSILX

Spot Forecast for Weinberg-King State Park...IDNR
National Weather Service Lincoln IL
813 AM CDT Tue Mar 11 2025

Forecast is based on ignition time of 0800 CDT on March 11.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (217) 732-3089 if you have questions
or concerns with this forecast.

.DISCUSSION...

A weak cold front was approaching central IL early Tues morning,
and this front is expected to result in a wind shift from
southwesterly to north-northeasterly in areas north of I-72. An
additional surge of lake-cooled air from Lake Michigan will push
in during the late afternoon/early evening, reaching the I-74
corridor first and shifting winds to northeasterly. This surge will
continue southwest in time, reaching portions of the I-72 corridor
closer to or just after sunset.

Mixing heights will be deep ahead of the lake-cooled air, but
diminished within the colder air. No precipitation is expected
today.


.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........51 at ignition...Max 67.
RH..................54 percent at ignition...Min 34 percent.
Wind (20 ft)........Winds west at 10 mph at ignition...otherwise
                    West winds around 7 mph shifting to the
                    northeast 7 to 10 mph in the late morning and
                    afternoon.
Mixing height.......500 ft AGL at ignition...otherwise 4100 ft AGL.
Transport winds.....Northwest around 15 mph shifting to the
                    northeast 15 to 17 mph in the late morning and
                    early afternoon, then decreasing to 12 to 14
                    mph late in the afternoon.
Smoke dispersal.....Poor /6500 knot-ft/ at ignition. Max...Fair
                    /45000 knot-ft/.

TIME (CDT)      8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........2      4      6      11     19
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0
Chc of thdr (%).0      0      0      0      0
Temp............51     55     62     66     67
RH..............54     53     41     34     36
20 ft wind......W 10   N 13   NE 14  NE 14  NE 13
20 ft wind gust.18     20     20     20     15
Mix hgt (ft)....500    1300   2600   3500   4000
Transport wind..W 15   N 15   NE 17  NE 15  E 13
Vrate kt-ft/1K..7      16     39     45     44
Ventrate Cat....POOR   POOR   POOR   FAIR   FAIR

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Min 39.
RH..................Max 70 percent.
Wind (20 ft)........East winds 6 to 10 mph.
Mixing height.......200 ft AGL.
Transport winds.....East 10 to 18 mph.
Smoke dispersal.....Poor (2000 knot-ft).

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........22     19     8      7      14     19
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Chc of thdr (%).0      0      0      0      0      0
Temp............64     56     50     46     42     41
RH..............38     51     56     49     53     59
20 ft wind......NE 10  NE 10  NE 13  E 12   E 12   E 9
20 ft wind gust.17     17     21     20     20     16
Mix hgt (ft)....3700   600    700    700    600    300
Transport wind..E 12   NE 15  E 16   E 16   E 14   E 10
Vrate kt-ft/1K..37     8      10     10     7      3
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR

$$
Forecaster...Copple
Requested by...Zach Webb
Type of request...PRESCRIBED
.TAG 2505843.0/ILX
.DELDT 03/11/25
.FormatterVersion 2.0.0
.EMAIL zach.webb@illinois.gov