Spot Forecast
Issued by NWS Jacksonville, FL

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434
FNUS72 KJAX 201554
FWSJAX

Spot Forecast for RAinbow Springs State Park...Rainbow Springs State Park
National Weather Service Jacksonville FL
1054 AM EST Tue Jan 20 2026

Forecast is based on ignition time of 1100 EST on January 21.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (904) 741-4370 if you have questions
or concerns with this forecast.

.DISCUSSION...

High pressure and dry conditions continue to prevail on Wednesday
with this high pressure system moving out to the northeast on
Thursday. A gradual warming trend is expected during this period,
but morning temps will be chilly again. Min RH values both days
will be in the upper 40s to lower 50s percent range. Daytime dispersion
is forecast to be close to 60 on Wednesday and will be a
little lower by Thursday. A northeast to east 20 foot wind
flow expected both days.

.WEDNESDAY...
TIME (EST)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........54  56  58  63  67  72  77
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0
Temp............61  65  69  71  71  71  69
RH..............65  63  57  55  53  53  57
Wind chill (F)..61  65  69  71  71  71  69
20 FT wind dir..NE  NE  E   E   NE  NE  NE
20 FT wind spd..7   8   8   8   8   7   6
20 FT wind gust.13  13  13  13  12  12  12
Mix hgt (kft)...1.7 2.6 3.4 3.7 4.0 4.2 3.0
Transp wind dir.E   E   E   E   E   E   E
Transp wind spd.14  14  14  13  13  12  10
Dispersion idx..31  44  56  57  57  57  38
LVORI...........2   1   1   1   1   1   1

.WEDNESDAY NIGHT...
TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........81  86  88  89  91  93  94  96  96  97  97  96
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   10  10  10  10  10
Temp............67  64  61  58  56  55  54  53  52  51  51  50
RH..............59  65  72  80  86  90  90  93  96  96  96  100
Wind chill (F)..67  64  61  58  56  55  54  53  52  51  51  50
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..6   5   5   3   3   3   2   2   2   2   2   2
20 FT wind gust.10  10  10  9   9   9   8   8   8   8   8   8
Mix hgt (kft)...1.7 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.E   NE  E   E   E   E   E   NE  NE  NE  NE  NE
Transp wind spd.9   9   9   9   9   9   8   7   7   8   8   8
Dispersion idx..21  5   5   4   4   4   4   3   3   4   4   4
LVORI...........2   3   3   4   5   6   6   6   8   7   7   9

.THURSDAY...
TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........94  93  83  73  63  64  66  67  62  56  51  48
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10  10  10
Temp............50  51  54  58  62  66  70  73  74  74  73  71
RH..............96  96  93  90  84  75  68  62  59  59  62  64
Wind chill (F)..49  51  54  58  62  66  70  73  74  74  73  71
20 FT wind dir..NE  NE  NE  NE  NE  NE  E   E   E   NE  NE  NE
20 FT wind spd..3   3   5   5   6   6   6   6   6   6   6   5
20 FT wind gust.8   8   8   9   9   9   10  10  10  10  10  10
Mix hgt (kft)...0.4 0.4 0.6 0.7 0.9 1.8 2.7 3.7 3.9 4.2 4.5 3.1
Transp wind dir.NE  NE  NE  E   E   E   E   E   E   E   E   E
Transp wind spd.9   9   10  10  12  12  10  9   9   8   8   9
Dispersion idx..4   7   10  11  11  24  32  43  43  43  44  34
LVORI...........8   6   6   5   4   3   3   1   1   1   1   1

$$
Forecaster...Shashy
Requested by...Cameron Randolph
Type of request...PRESCRIBED
.TAG 2600637.0/JAX
.DELDT 01/20/26
.FormatterVersion 2.0.0
.EMAIL cameron.randolph@floridadep.gov