209
FNUS73 KLMK 092317 CCA
FWSLMK

Spot Forecast for Charlestown SP 30-Acre Field RX Fire...CORRECTED
National Weather Service Louisville KY
717 PM EDT Sun Mar 9 2025

Forecast is based on ignition time of 1300 EDT on March 11.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Expect cold mornings with unseasonably mild afternoons through
Tuesday. Afternoon humidity levels will generally run between 30
and 40 percent, but a more efficient dry air mixdown could result
in humidities lower than forecast. Max relative humidity Tuesday
morning will run near 70 percent, but with initially poor smoke
dispersion due to a strong low-level inversion. Vent rates will
improve sharply around midday with deeper mixing.


.TUESDAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........63 at ignition...Max 71.
RH..................44 percent at ignition...Min 36 percent.
Wind (20 ft)........Winds southwest at 6 mph at
                    ignition...otherwise Southwest winds around 7
                    mph.
Mixing height.......2500 ft AGL at ignition...otherwise 4000 ft
                    AGL.
Transport winds.....West 16 to 20 mph.
Smoke dispersal.....Fair /42100 knot-ft/ at ignition. Max...good
                    /60700 knot-ft/.
LVORI...............1.
ADI.................56 to 76.

TIME (EDT)      1 PM   3 PM   5 PM
Sky (%).........3      3      4
Weather cov.....
Weather type....NONE   NONE   NONE
Tstm cov........
Temp............63     68     68
RH..............44     37     37
20 ft wind......SW 6   SW 6   W 6
20 ft wind gust.11     11     9
Mix hgt (ft)....2500   3600   4000
Transport wind..W 20   W 18   W 16
LVORI...........1      1      1
ADI.............56     65     76
SDspl kt-ft/100042     58     56

.TUESDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Temperature.........Min 44.
RH..................Max 86 percent.
Wind (20 ft)........West winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......100 ft AGL.
Transport winds.....West 8 to 13 mph shifting to the north 9 to 13
                    mph in the late evening and overnight, then
                    shifting to the east overnight.
Smoke dispersal.....Marginal (32200 knot-ft) early in the evening
                    decreasing to poor (800 knot-ft) late in the
                    night.
LVORI...............3.
ADI.................46 early in the evening decreasing to 4 late
                    in the night.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........6      9      14     15     12     17
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............66     61     56     52     49     47
RH..............40     48     64     71     77     79
20 ft wind......W 5    W 3    SE 3   E 3    E 3    E 3
20 ft wind gust.7      5      5      5      6      6
Mix hgt (ft)....2900   400    200    400    400    400
Transport wind..W 13   W 8    N 12   N 12   NE 8   E 8
LVORI...........1      2      3      3      4      4
ADI.............46     4      5      5      4      4
SDspl kt-ft/100032     3      2      4      3      3

$$
Forecaster...RAS
Requested by...Jacob Shapley
Type of request...PRESCRIBED
.TAG 2505308.2/LMK
.DELDT 03/09/25
.FormatterVersion 2.0.0
.EMAIL Jshapley@dnr.in.gov