Suppression Forecast
Issued by NWS Jacksonville, FL

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121
FNUS72 KJAX 222216
FWSJAX

Spot Forecast for Shanty 2...US Forest Service
National Weather Service Jacksonville FL
616 PM EDT Thu May 22 2025

Forecast is based on forecast start time of 1800 EDT on May 22.
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.

...CRITICALLY LOW RH FRIDAY...

.DISCUSSION...

Only a 10-15 percent chance of a shower rest of the evening.  Otherwise,
a light wind flow regime is expected the next couple of days with dry
weather and warm afternoon temperatures. There is a low to medium
chance a late east coast sea breeze boundary would reach the site
late in the day after 5 or 6 pm both on Friday and Saturday which
would briefly increase wind speeds from the east or northeast.

Mostly cloudy rest of the day with more clear skies by Friday through
Saturday. Min RH on Friday looks to be in the upper 20s, and Min RH
on Saturday in the mid 30s. Daytime dispersions Friday and Saturday are
forecast to be in the 50s and 60s, respectively.

There are increasing chances for afternoon showers and
thunderstorms from Sunday through early next week.

.TONIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........86  86  85  78  70  59  49  44  32  27  18  13
Weather cov.....        SCH
Weather type....        RW
Tstm cov........        SCH
Chc of pcpn (%).10  10  20  10  10  0   0   0   0   0   0   0
Chc of thdr (%).10  10  0   0   0   0   0   0   0   0   0   0
Temp............90  87  82  79  76  74  72  70  68  67  66  64
RH..............27  31  41  49  56  59  64  68  76  78  78  87
Heat index (F)..87  85  82  79  76  74  72  70  68  67  66  64
20 FT wind dir..NE  E   SE  SE  SE  SE  S   S   SW  SW  SW  W
20 FT wind spd..6   6   5   3   2   2   2   1   1   1   1   1
20 FT wind gust.9   9   7   6   3   3   3   2   2   2   2   2
Mix hgt (kft)...4.6 2.4 0.6 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4
Transp wind dir.W   SE  E   SE  SE  S   S   S   S   SW  SW  W
Transp wind spd.5   6   7   7   7   7   7   7   7   7   7   7
Dispersion idx..26  18  5   4   3   3   3   3   3   3   3   3
LVORI...........2   2   2   2   3   3   3   3   3   4   5   5

.FRIDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  7   5   4   4   4   6   10  17  16  17  18
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   10  10
Chc of thdr (%).0   0   0   0   0   0   0   0   10  10  10  10
Temp............64  64  68  77  82  87  90  93  95  96  97  96
RH..............87  87  81  62  53  42  34  31  28  26  26  26
Heat index (F)..64  64  68  77  83  87  89  92  94  95  96  95
20 FT wind dir..W   W   W   NW  NW  N   N   N   NE  N   NE  NE
20 FT wind spd..1   1   1   3   5   6   6   5   6   6   6   6
20 FT wind gust.2   2   2   6   7   9   9   7   9   9   9   9
Mix hgt (kft)...0.4 0.4 0.5 1.3 2.6 4.4 5.7 6.7 7.3 7.3 7.2 7.2
Transp wind dir.W   NW  NW  NW  NW  NW  W   W   SW  SW  SW  SW
Transp wind spd.7   6   5   5   5   5   5   6   7   6   6   6
Dispersion idx..3   3   5   8   16  24  32  46  53  50  49  49
LVORI...........6   6   4   3   2   2   1   1   1   1   1   1

.FRIDAY NIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........21  20  21  24  18  34  24  14  4   5   5   5
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).10  10  0   0   0   0   0   0   0   0   0   0
Temp............95  90  85  81  77  74  72  70  69  67  66  64
RH..............28  35  46  54  60  66  73  78  84  90  93  100
Heat index (F)..94  89  86  82  77  74  72  70  69  67  66  64
20 FT wind dir..E   E   E   SE  SE  SE  SE  S   S   S   SW  SW
20 FT wind spd..7   8   7   8   7   5   3   3   2   1   1   1
20 FT wind gust.10  13  10  13  10  7   6   6   3   2   2   2
Mix hgt (kft)...5.1 3.0 0.9 0.7 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.4
Transp wind dir.S   SE  E   SE  SE  S   S   S   S   S   S   S
Transp wind spd.8   10  12  13  12  12  10  10  9   8   7   6
Dispersion idx..47  36  6   7   6   5   5   4   4   4   3   3
LVORI...........1   1   2   2   3   3   3   4   5   6   7   9

.SATURDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4   3   2   3   4   5   10  14  19  20  21  22
Weather cov.....                                SCH SCH SCH SCH
Weather type....                                RW  RW  RW  RW
Tstm cov........                                            SCH
Chc of pcpn (%).0   0   0   0   0   0   0   0   20  20  20  20
Chc of thdr (%).0   0   0   0   0   0   0   0   10  10  10  20
Temp............64  65  69  76  83  88  91  93  94  95  95  94
RH..............100 100 93  74  59  50  44  38  36  35  35  37
Heat index (F)..64  65  69  76  86  91  94  95  95  96  96  96
20 FT wind dir..SW  S   S   S   SW  SW  S   S   SE  SE  E   E
20 FT wind spd..1   1   1   1   2   2   2   3   3   3   5   5
20 FT wind gust.2   2   2   2   3   3   3   6   6   6   7   7
Mix hgt (kft)...0.6 0.8 1.0 2.1 3.1 4.2 5.5 6.9 8.2 8.1 8.0 7.9
Transp wind dir.S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
Transp wind spd.6   5   6   6   7   7   7   7   7   7   6   7
Dispersion idx..3   2   7   15  27  37  47  57  66  63  54  60
LVORI...........9   10  6   3   2   1   1   1   1   1   1   1

$$
Forecaster...Shashy
Requested by...Hunter Loncarich
Type of request...WILDFIRE
.TAG 2514544.0/JAX
.DELDT 05/22/25
.FormatterVersion 2.0.0
.EMAIL hloncarich@blm.gov