899
FNUS72 KTBW 230652
FWSTBW

Spot Forecast for CR-H17...DEP
National Weather Service Tampa Bay Ruskin FL
252 AM EDT Fri May 23 2025

Forecast is based on ignition time of 0700 EDT on May 23.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (813) 645-2323 if you have questions or
concerns with this forecast.

.DISCUSSION...
High pressure will hold over the region today with warm dry conditions.
Minimum afternoon relative humidity values will drop to near critical
levels...however, winds are expected to remain less than 15 MPH.


.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 92.
Min humidity........36 percent.
Wind (20 ft)........Light winds becoming west 5 to 7 mph in the
                    afternoon.
Mixing height.......3900 ft AGL.
Transport winds.....North 5 to 8 mph shifting to the west 6 to 12
                    mph late in the afternoon.
Dispersion index....8 increasing to 26.
LVORI...............4.

TIME (EDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Sky (%).........14     26     26     26     26     26
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............66     74     87     91     91     90
RH..............85     74     41     36     42     45
20 ft wind......N 1    N 2    N 2    W 5    W 6    W 7
20 ft wind gust.5      6      6      7      9      10
Mix hgt (ft)....400    1200   2900   3900   2600   1700
Transport wind..N 7    N 8    N 6    NW 5   W 7    W 12
Dispersion idx..4      11     21     25     26     25
LVORI...........5      3      2      2      2      2

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 68.
Max humidity........97 percent.
Wind (20 ft)........West winds 5 to 7 mph early in the evening
                    becoming light.
Mixing height.......400 ft AGL.
Transport winds.....West 9 to 13 mph shifting to the south 5 to 7
                    mph late in the evening, then shifting to the
                    west around 3 mph overnight shifting to the
                    northwest 3 to 5 mph after 3 am.
Dispersion index....15 decreasing to 3 early in the evening.
LVORI...............5.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........26     26     25     23     20     20
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............89     83     78     75     72     70
RH..............47     55     70     76     85     91
20 ft wind......W 7    W 5    W 2    S 2    SW 1   SW 1
20 ft wind gust.10     9      7      6      5      5
Mix hgt (ft)....1300   500    400    500    400    400
Transport wind..W 13   W 12   NW 9   S 6    W 3    NW 5
Dispersion idx..19     5      3      3      2      1
LVORI...........2      3      3      4      5      7

.SATURDAY...

Sky/weather.........Sunny (5-15 percent). Slight chance of showers
                    and thunderstorms late in the afternoon.
Chance of pcpn......20 percent.
Max temperature.....Around 92.
Min humidity........46 percent.
Wind (20 ft)........Light winds becoming west 5 to 7 mph in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......3000 ft AGL.
Transport winds.....Northwest 2 to 3 mph shifting to the southwest
                    5 to 13 mph late in the morning.
Dispersion index....4 increasing to 30.
LVORI...............4.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........19     10     3      5      9      9
Weather cov.....                            S CHC  S CHC
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            S CHC  S CHC
Chc of pcpn (%).0      0      0      0      20     20
Temp............69     72     85     90     92     91
RH..............93     87     56     47     46     48
20 ft wind......NW 1   NE 1   NW 2   W 3    W 6    W 7
20 ft wind gust.5      5      6      8      9      10
Mix hgt (ft)....400    500    1900   3000   2600   2000
Transport wind..NW 3   NW 2   N 2    SW 5   W 8    W 12
Dispersion idx..1      3      11     21     28     31
LVORI...........7      6      2      2      2      1

$$
Forecaster...Oglesby
Requested by...Jeff Pettis
Type of request...PRESCRIBED
.TAG 2514553.0/TBW
.DELDT 05/23/25
.FormatterVersion 2.0.0
.EMAIL john.kilmer@floridadep.gov,jeffrey.pettis@floridadep.gov