Suppression Forecast
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4
721
FNUS73 KLOT 221328
FWSLOT

Spot Forecast for Good Fellow Piles 1...National Park Service
National Weather Service Chicago IL
828 AM CDT Sat Apr 22 2017

Forecast is based on ignition time of 0900 CDT on April 22.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (815) 834-0666, if you have questions
or concerns with this forecast.

.DISCUSSION...

Northeast winds this morning are expected to back slightly
towards the north this afternoon. Onshore flow will keep
temperatures suppressed near the lake resulting in lower mixing
heights and higher RH than areas inland. Winds are expected to be
breezy with gusts of 20 to 25 mph at times late this morning
through the afternoon. No precipitation is expected today and
clouds should thin through the afternoon.

.REST OF TODAY...

Sky/weather.........Partly cloudy.
Temperature.........45 at ignition...Max 50.
RH..................68 percent at ignition...Min 50 percent.
Wind (20 ft)........Winds northeast at 12 mph at
                    ignition...otherwise North winds 12 to 13 mph
                    with gusts to around 25 mph.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Mixing height.......1000 ft AGL at ignition...otherwise 1000-1700 ft
                    AGL.
Transport winds.....North 15 to 20 mph.
MIXING TEMP 1700FT..51.
Smoke dispersal.....Fair /15100 knot-ft/ at ignition. Max...fair
                    /27100 knot-ft/.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........61  61  58  55  52  48  45  42  39  39
WEATHER COV.....
WEATHER TYPE....
TEMP............45  47  48  48  49  49  50  50  49  48
RH..............68  63  58  58  56  54  52  50  52  54
20 FT WIND DIR..NE  NE  NE  N   N   N   N   N   N   N
20 FT WIND SPD..12  13  13  13  13  13  13  13  13  12
20 FT WIND GUST.25  25  25  25  25  25  25  25  25  25
MIX HGT (KFT)...1.0 1.5 1.5 1.6 1.7 1.5 1.2 1.0 0.7 0.4
TRANSP WIND DIR.050 040 040 040 030 030 020 010 010 010
TRANSP WIND SPD.17  18  20  18  18  18  18  17  17  15
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1
VRATE KT-FT/100015  24  26  27  27  23  20  16  10  5

.TONIGHT...

Sky/weather.........Mostly clear.
Temperature.........Min 40.
RH..................Max 82 percent.
Wind (20 ft)........Northeast winds 5 to 12 mph in the evening
                    becoming light.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Mixing height.......100 ft AGL.
Transport winds.....Northeast 5 to 14 mph shifting to the north 2
                    to 3 mph after midnight.
MIXING TEMP 1700FT..N/A.
Smoke dispersal.....Poor (200 knot-ft).

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
SKY (%).........38  35  30  25  20  15  12  12  11  10  9   8
WEATHER COV.....
WEATHER TYPE....
TEMP............47  46  45  44  43  42  41  41  41  40  40  40
RH..............58  60  65  70  73  76  76  76  76  79  79  82
20 FT WIND DIR..N   N   N   N   NE  NE  NE  NE  N   N   N   N
20 FT WIND SPD..11  10  9   7   6   5   4   3   3   3   3   2
20 FT WIND GUST.20  20  20  15  10      5   5   5   5   5
MIX HGT (KFT)...0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
TRANSP WIND DIR.010 010 020 020 020 030 030 030 020 020 020 010
TRANSP WIND SPD.14  12  10  9   7   6   5   5   3   3   3   2
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
VRATE KT-FT/10001   1   1   1   1   1   0   0   0   0   0   0

.SUNDAY...

Sky/weather.........Sunny.
Temperature.........Max 55.
RH..................Min 43 percent.
Wind (20 ft)........Light winds becoming north around 5 mph in the
                    afternoon.
Chance of pcpn......0 percent.
LAL.................No Tstms.
Mixing height.......100-400 ft AGL.
Transport winds.....Northeast 2 to 6 mph.
MIXING TEMP 1700FT..59.
Smoke dispersal.....Poor (200 knot-ft).

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........6   6   5   5   5   5   5   4   3   3   3   3
WEATHER COV.....
WEATHER TYPE....
TEMP............41  43  46  49  51  52  52  54  55  55  54  52
RH..............79  76  71  63  56  52  50  46  43  43  45  50
20 FT WIND DIR..N   N   N   N   N   N   N   N   N   N   N   NE
20 FT WIND SPD..2   2   3   3   4   4   5   5   5   5   5   5
20 FT WIND GUST.        5   5   5   5
MIX HGT (KFT)...0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.3 0.2
TRANSP WIND DIR.010 010 000 000 000 000 000 000 000 000 010 030
TRANSP WIND SPD.2   2   3   3   5   5   5   6   6   6   6   6
CHC OF PCPN (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
VRATE KT-FT/10000   0   1   1   1   1   1   1   2   2   2   1

$$
Forecaster...DEUBELBEISS
Requested by...Michael Grismer
Type of request...PRESCRIBED
.TAG 1707487.0/LOT



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