Suppression Forecast
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9
000
FNUS73 KLOT 111314
FWSLOT

SPOT FORECAST FOR CARBTREE...FOREST PRESERVE DISTRICT OF COOK COUNTY
NATIONAL WEATHER SERVICE CHICAGO IL
814 AM CDT FRI APR 11 2014

FORECAST IS BASED ON IGNITION TIME OF 1430 CDT ON APRIL 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
LIGHT AND VARIABLE WINDS EARLY THIS MORNING WILL GRADUALLY BECOME
SOUTHWEST BY LATE MORNING...THEN BECOME A BIT GUSTY UP AROUND 15-18 KT
BY MID TO LATE AFTERNOON. DRY CONDITIONS ARE EXPECTED...WITH RH`S LIKELY
FALLING DOWN INTO THE LOWER 20 PERCENT RANGE THIS AFTERNOON.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY THIS MORNING...THEN BECOMING PARTLY CLOUDY
                    THIS AFTERNOON.
TEMPERATURE.........63 AT IGNITION...MAX 64.
RH..................23 PERCENT AT IGNITION...MIN 22 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AROUND 11 MPH AT IGNITION...OTHERWISE
                    SOUTHWEST WINDS 10 TO 15 MPH IN THE AFTERNOON.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......500-1500 FT AGL INCREASING TO 8000 FT AGL AT
                    IGNITION...OTHERWISE 6500-8500 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 3 MPH SHIFTING TO THE WEST IN THE
                    MORNING...THEN INCREASING TO 13 TO 20 MPH IN
                    THE AFTERNOON.
MIXING TEMP 1700FT..58.
SMOKE DISPERSAL.....VERY GOOD /111500 KNOT-FT/ AT IGNITION.
                    MAX...VERY GOOD /148500 KNOT-FT/.

TIME (CDT)      2PM 3PM 4PM 5PM 6PM
SKY (%).........34  34  33  32  29
WEATHER COV.....
WEATHER TYPE....
TEMP............63  63  64  64  63
RH..............22  23  24  25  27
20FT WIND DIR...240 250 240 240 240
20FT SPEED(MPH).8   9   10  10  8
20FT SPEED(KT)..7   8   8   8   7
20FT GUST(MPH)..17  20  21  20  15
20FT GUST(KT)...15  17  18  17  13
MIX HGT (KFT)...7.0 8.0 8.5 8.5 6.5
TRANSP WIND DIR.260 260 260 260 250
TRANSP WIND SPD.13  16  20  20  20
CWR.............10  10  10  10  10
VRATE KT-FT/100075  112 148 149 113

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 43.
RH..................MAX 76 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH.
CHANCE OF PCPN......10 PERCENT.
MIXING HEIGHT.......500-1500 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 22 MPH SHIFTING TO THE SOUTHWEST 7
                    TO 12 MPH AFTER MIDNIGHT.
MIXING TEMP 1700FT..MISSING.
SMOKE DISPERSAL.....POOR TO POOR (1500-26500 KNOT-FT).

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
SKY (%).........25  26  27  29  31  32  33  34  36  39  41  43
WEATHER COV.....
WEATHER TYPE....
TEMP............62  59  55  52  50  50  49  47  45  44  43  43
RH..............30  36  43  50  56  56  58  63  68  70  73  76
20FT WIND DIR...230 220 210 210 210 220 220 210 210 200 200 190
20FT SPEED(MPH).6   6   6   6   6   5   5   5   5   5   5   5
20FT SPEED(KT)..6   5   5   6   5   4   4   4   4   4   4   4
20FT GUST(MPH)..13  12  12  12  10  9   8   8   8   8   8   9
20FT GUST(KT)...11  10  10  10  9   8   7   7   7   7   7   8
MIX HGT (KFT)...1.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.240 240 240 240 250 270 280 260 240 230 220 220
TRANSP WIND SPD.18  21  22  22  20  16  14  10  8   7   8   12
CWR.............0   0   0   0   0   0   10  10  10  10  10  10
VRATE KT-FT/100027  10  5   5   5   4   3   2   2   2   2   3

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
TEMPERATURE.........MAX 75.
RH..................MIN 46 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH INCREASING TO AROUND 15
                    MPH WITH GUSTS TO AROUND 31 MPH IN THE LATE
                    MORNING AND AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MIXING HEIGHT.......500-1500 FT AGL INCREASING TO 2000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 16 TO 23 MPH INCREASING TO 37 TO 41
                    MPH.
MIXING TEMP 1700FT..62.
SMOKE DISPERSAL.....POOR TO VERY GOOD (3500-145000 KNOT-FT).

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........45  47  53  58  63  69  72  74  78  83  87  91
WEATHER COV.....                        CHC CHC CHC CHC CHC CHC
WEATHER TYPE....                        RW  RW  RW  RW  RW  RW
TEMP............45  50  56  62  65  67  69  72  73  74  74  73
RH..............70  61  53  46  46  50  53  51  51  51  51  53
20FT WIND DIR...180 180 180 180 180 190 190 190 190 200 200 200
20FT SPEED(MPH).5   7   10  11  12  12  13  14  14  14  14  12
20FT SPEED(KT)..4   6   8   10  10  10  11  12  12  12  12  10
20FT GUST(MPH)..12  15  21  25  28  30  31  31  31  30  28  25
20FT GUST(KT)...10  13  18  22  24  26  27  27  27  26  24  22
MIX HGT (KFT)...0.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 3.5 4.0 3.0 2.0
TRANSP WIND DIR.220 210 200 190 190 200 200 200 210 210 210 220
TRANSP WIND SPD.16  20  23  26  31  35  38  40  41  41  39  37
CWR.............10  10  10  10  10  10  30  30  30  30  30  30
VRATE KT-FT/10004   12  23  37  55  74  95  114 132 145 105 67

$$
FORECASTER...BIRK
REQUESTED BY...MATT HOKANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20140411.CARBT.01/LOT






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