Spot Forecast
Issued by NWS Jacksonville, FL

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338
FNUS72 KJAX 201149
FWSJAX

Spot Forecast for Ross Prairie 200...FFS
National Weather Service Jacksonville FL
749 AM EDT Mon May 20 2024

Forecast is based on ignition time of 0800 EDT on May 20.
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...A cool frontal boundary is expected to push through
the local area today with a slight chance of showers or possibly
an early afternoon thunderstorm as light North winds slowly
become Northeast late in the day. Some light fog potential late
Monday Night and early Tuesday morning around sunrise as winds
briefly become near calm, but significant dense fog is not
expected.

.REST OF TODAY...
TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........23  21  23  28  32  34  38  42  49  51
Weather cov.....                            SCH SCH SCH
Weather type....                            RW  RW  RW
Tstm cov........                            SCH SCH SCH
Chc of pcpn (%).0   0   0   0   0   10  10  20  20  20
LAL.............1   1   1   1   1   1   1   2   2   2
Temp............71  74  78  81  83  85  86  87  87  86
RH..............90  84  74  65  61  55  53  52  52  53
Heat index (F)..71  74  78  84  86  88  89  90  90  89
Wind chill (F)..71  74  78  81  83  85  86  87  87  86
20 FT wind dir..N   N   N   N   N   N   N   N   N   N
20 FT wind spd..5   5   6   7   7   8   8   8   9   10
20 FT wind gust.7   7   9   10  10  13  13  13  14  16
Mix hgt (kft)...1.2 1.5 2.4 3.1 3.9 4.6 4.8 5.3 5.1 3.9
Transp wind dir.N   N   N   N   N   NW  NW  N   N   N
Transp wind spd.7   7   7   7   8   8   8   9   10  12
Dispersion idx..11  14  22  29  35  40  44  54  59  53
LVORI...........5   4   3   2   1   1   1   1   1   1

.TONIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........39  35  29  24  23  18  21  20  16  15  16  20
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............85  83  80  76  74  72  70  69  67  66  65  65
RH..............57  61  67  74  76  81  87  87  93  97  97  97
Heat index (F)..88  86  83  76  74  72  70  69  67  66  65  65
Wind chill (F)..85  83  80  76  74  72  70  69  67  66  65  65
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  N   N
20 FT wind spd..10  10  8   8   7   6   5   5   3   3   3   3
20 FT wind gust.16  16  13  13  10  9   7   7   6   6   6   6
Mix hgt (kft)...3.3 2.8 1.7 1.0 0.7 0.5 0.5 0.5 0.5 0.4 0.4 0.4
Transp wind dir.N   NE  NE  NE  NE  E   NE  NE  NE  NE  NE  NE
Transp wind spd.13  14  15  14  14  12  12  10  9   8   8   8
Dispersion idx..52  49  10  9   6   5   5   4   4   4   4   4
LVORI...........1   1   3   3   4   4   5   5   6   8   8   8

.TUESDAY...
TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25  26  13  9   15  15  16  16  17  20  24  27
Weather cov.....                                SCT SCT SCT SCT
Weather type....                                RW  RW  RW  RW
Tstm cov........                                SCT SCT SCT SCT
Chc of pcpn (%).0   0   10  10  10  10  10  10  30  30  30  30
LAL.............1   1   1   1   1   1   1   1   3   3   3   3
Temp............64  65  67  71  76  79  81  83  85  86  86  87
RH..............100 97  97  93  82  74  69  63  59  59  59  59
Heat index (F)..64  65  67  71  76  79  85  87  89  91  91  93
Wind chill (F)..64  65  67  71  76  79  81  83  85  86  86  87
20 FT wind dir..N   N   NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..3   3   3   3   5   6   7   7   7   7   8   8
20 FT wind gust.6   6   6   6   7   9   10  10  10  10  13  13
Mix hgt (kft)...0.4 0.5 0.5 1.5 2.4 3.4 4.2 4.9 5.7 5.5 5.3 5.1
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  E   E   E   E
Transp wind spd.9   10  12  10  10  9   9   9   9   10  10  12
Dispersion idx..4   5   11  21  32  41  47  52  60  62  64  67
LVORI...........8   8   6   5   3   2   1   1   1   1   1   1

$$
Forecaster...Hess
Requested by...Mark Larson
Type of request...PRESCRIBED
.TAG 2414713.0/JAX
.DELDT 05/20/24
.FormatterVersion 2.0.0
.EMAIL mark.larson@fdacs.gov