Spot Forecast
Issued by NWS San Juan, PR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1
269
FNCA72 TJSJ 301114
FWSSJU

Spot Forecast for Charlie Squad...Puerto Rico Fire Dept
National Weather Service San Juan PR
714 AM AST Fri Oct 30 2026

Forecast is based on ignition time of 0700 AST on October 30.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions or concerns
with this forecast at
PHONE: 787-253-4586.

.DISCUSSION...

Passing showers have been detected by radar and are currently over
Patillas moving westward towards the site. Passing showers continue
to be possible during the morning. Winds around 13 mph from the
southeast with higher gusts and sea breeze variations. Minimum
relative humidity values at above fire weather thresholds.
Afternoon shower activity should remain mainly north and east
of the site.

.REST OF TODAY...

Sky/weather.........Mostly sunny (30-40 percent). Isolated showers.
Chance of pcpn......20 percent.
Max temperature.....Around 89.
Min humidity........59 percent.
Wind (20 ft)........Southeast winds 5 to 12 mph.
Mixing height.......5300 ft AGL.
Transport winds.....East 6 to 13 mph.
Dispersion..........5.

TIME (AST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  40  30  30  30  29  29  29  40  40  40
Weather cov.....ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).20  20  10  10  10  10  10  10  20  20  20
Temp............80  83  85  87  88  89  89  89  88  85  83
RH..............76  72  70  64  62  60  59  60  60  65  73
20 FT wind dir..E   E   E   E   SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..5   5   7   9   10  12  12  12  12  10  10
20 FT wind gust.6   6   8   10  12  13  20  13  13  12  12
Mix hgt (kft)...0.8 1.5 2.7 4.0 5.0 5.3 5.3 4.9 4.3 3.5 2.7
Transp wind dir.E   E   E   E   E   E   E   E   E   E   E
Transp wind spd.6   7   8   10  12  12  10  10  12  13  13
Dispersion......3   6   6   6   6   6   6   6   6   6   6

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent). Scattered
                    showers in the evening and overnight, then
                    isolated showers after 3 am.
Chance of pcpn......40 percent.
Min temperature.....Around 76.
Max humidity........87 percent.
Wind (20 ft)........East winds 5 to 9 mph shifting to the northeast
                    around 5 mph after 3 am.
Dispersion..........4.

TIME (AST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........50  50  50  60  60  60  50  50  50  40  40  40
Weather cov.....SCT SCT SCT SCT SCT SCT SCT SCT SCT ISO ISO ISO
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).30  30  30  40  40  40  30  30  30  20  20  20
Temp............81  81  80  79  79  78  78  77  77  77  76  76
RH..............76  78  77  79  80  81  82  83  85  86  87  87
20 FT wind dir..E   E   E   E   NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..9   7   7   6   6   6   6   5   5   5   5   5
20 FT wind gust.10  8   8   7   7   7   7   6   6   6   6   6
Dispersion......6   6   4   4   4   4   4   4   2   2   2   2

.SATURDAY...

Sky/weather.........Sunny (15-25 percent) then becoming mostly
                    cloudy (65-75 percent) then becoming mostly
                    sunny (45-55 percent). Isolated thunderstorms
                    late in the morning. Scattered showers in the
                    late morning and afternoon.
Chance of pcpn......50 percent.
Max temperature.....Around 89.
Min humidity........61 percent.
Wind (20 ft)........East winds 5 to 13 mph increasing to 10 to 15
                    mph in the afternoon. Gusty and erratic winds
                    expected near thunderstorms late in the
                    morning.
Dispersion..........4.

TIME (AST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........18  18  18  70  70  70  50  50  50  50  50  50
Weather cov.....            SCT SCT SCT SCT SCT SCT SCT SCT SCT
Weather type....            RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........            ISO ISO ISO
Chc of pcpn (%).0   0   0   50  50  50  30  30  30  30  30  30
Temp............78  81  83  85  87  88  89  89  89  88  85  83
RH..............84  77  71  69  66  63  62  61  64  62  67  75
20 FT wind dir..NE  E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..5   5   6   8   10  13  15  15  15  14  13  10
20 FT wind gust.6   6   7   9   12  22  24  25  25  24  21  12
Dispersion......2   2   6   6   6   6   6   6   6   6   6   6

$$
Forecaster...M. Ramos-Rodriguez
Requested by...Jose M. Martinez
Type of request...PRESCRIBED
.TAG 2624913.0/SJU
.DELDT 10/30/26
.FormatterVersion 2.0.0
.EMAIL josemartin@dsp.pr.gov