Spot Forecast
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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FNCA72 TJSJ 241618
FWSSJU
Spot Forecast for TEST...NOAA NWS SJU
National Weather Service San Juan PR
1218 PM AST Wed Jul 24 2024
...TEST...TEST...TEST...TEST...TEST
Forecast is based on forecast start time of 1800 AST on July 24.
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.
...HEAT ADVISORY IN EFFECT UNTIL 9 PM GMT THIS EVENING...
.DISCUSSION...
.TONIGHT...
Chance of pcpn......60 percent.
LAL.................1.
Min temperature.....Around 79.
Max humidity........94 percent.
Heat index..........MISSING.
Surface winds (mph).East winds 9 to 10 mph.
Wind (20 ft)........East winds 8 to 9 mph. Gusty and erratic winds
expected near thunderstorms in the evening.
Mixing height.......100 ft AGL.
Transport winds.....East 10 to 14 mph.
Smoke dispersal.....Fair (21600 knot-ft) early in the evening
decreasing to poor (400 knot-ft) late in the
night.
Dispersion..........6.
Wave height.........Less than 1 foot.
Wave period.........0 SECONDS.
TIME (AST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Chc of pcpn (%).60 60 60 50 50 50 40 40 40 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............85 83 82 82 81 81 80 80 79 79 79 80
RH..............78 82 84 85 90 89 90 91 92 93 94 90
Heat index (F)..M M M M M M M M M M M M
20 FT wind dir..E E E E E E E E E E E E
20 FT wind spd..10 10 9 9 10 10 10 10 10 10 10 9
20 FT wind gust.12 12 10 10 12 12 12 12 12 12 12 10
Surface wnd dir.E E E E E E E E E E E E
Surface wnd spd.10 10 9 9 10 10 10 10 10 10 10 9
Surface wnd gst.12 12 10 10 12 12 12 12 12 12 12 10
Mix hgt (kft)...1.9 1.0 0.3 0.1 0.1 0.2 0.3 0.3 0.3 0.2 0.2 0.2
Transp wind dir.E E E E E E E E E E E E
Transp wind spd.14 12 10 10 10 10 10 12 12 12 10 10
Dispersion......6 6 6 6 6 6 6 6 6 6 6 6
Vrate kt-ft/1K..22 10 2 0 1 2 2 3 3 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Wave period (s).0 0 0 0 0 0 0 0 0 0 0 0
Wave height (ft)0 0 0 0 0 0 0 0 0 0 0 0
.THURSDAY...
Chance of pcpn......70 percent.
LAL.................2 until 1200, then 1.
Max temperature.....Around 89.
Min humidity........70 percent.
Heat index..........MISSING.
Surface winds (mph).East winds 9 to 16 mph.
Wind (20 ft)........East winds 8 to 14 mph. Gusty and erratic winds
expected near thunderstorms in the morning.
Mixing height.......3700 ft AGL.
Transport winds.....East 10 to 18 mph increasing to 18 to 20 mph in
the afternoon.
Smoke dispersal.....Poor (3900 knot-ft) early in the morning
increasing to excellent (62900 knot-ft) in the
afternoon.
Dispersion..........6.
Wave height.........Less than 1 foot.
Wave period.........0 SECONDS.
TIME (AST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Chc of pcpn (%).50 50 50 70 70 70 30 30 30 20 20 20
LAL.............2 2 2 2 2 2 1 1 1 1 1 1
Temp............82 84 85 86 87 88 89 89 89 89 88 87
RH..............82 78 80 76 74 72 73 72 70 71 72 75
Heat index (F)..M M M M M M M M M M M M
20 FT wind dir..E E E E E E E E E E E E
20 FT wind spd..9 9 9 12 14 16 16 16 15 15 14 14
20 FT wind gust.10 10 10 15 18 21 21 21 20 18 18 17
Surface wnd dir.E E E E E E E E E E E E
Surface wnd spd.9 9 9 12 14 16 16 16 15 15 14 14
Surface wnd gst.10 10 10 15 18 21 21 21 20 18 18 17
Mix hgt (kft)...0.4 0.7 1.1 1.7 2.3 2.8 3.1 3.4 3.5 3.7 3.6 3.3
Transp wind dir.E E E E E E E E E E E E
Transp wind spd.10 12 13 14 16 17 18 20 20 20 20 18
Dispersion......6 6 6 6 6 6 6 6 6 6 6 6
Vrate kt-ft/1K..4 7 13 21 31 41 50 57 60 63 61 53
Ventrate Cat....PR PR PR PR PR FR FR FR FR GD GD FR
Wave period (s).0 0 0 0 0 0 0 0 0 0 0 0
Wave height (ft)0 0 0 0 0 0 0 0 0 0 0 0
.THURSDAY NIGHT...
Chance of pcpn......30 percent.
LAL.................1.
Min temperature.....Around 80.
Max humidity........93 percent.
Heat index..........MISSING.
Surface winds (mph).East winds 9 to 13 mph.
Wind (20 ft)........East winds 8 to 10 mph.
Mixing height.......0 ft AGL.
Transport winds.....East 9 to 16 mph.
Smoke dispersal.....Good (33800 knot-ft) early in the evening
decreasing to poor (0 knot-ft) late in the
night.
Dispersion..........6.
Wave height.........Less than 1 foot.
Wave period.........0 SECONDS.
TIME (AST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Chc of pcpn (%).30 30 30 30 30 30 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............85 84 83 83 82 82 81 81 80 80 80 81
RH..............80 83 85 87 90 92 92 93 93 93 93 89
Heat index (F)..M M M M M M M M M M M M
20 FT wind dir..E E E E E E E E E E E E
20 FT wind spd..13 12 12 10 10 10 10 10 10 9 9 9
20 FT wind gust.16 15 13 12 12 12 12 12 12 10 10 10
Surface wnd dir.E E E E E E E E E E E E
Surface wnd spd.13 12 12 10 10 10 10 10 10 9 9 9
Surface wnd gst.16 15 13 12 12 12 12 12 12 10 10 10
Mix hgt (kft)...2.3 1.2 0.2 0.1 0.1 0.2 0.2 0.2 0.2 0.1 0.1 0.2
Transp wind dir.E E E E E E E SE SE SE E E
Transp wind spd.16 15 13 12 12 12 12 10 10 9 9 9
Dispersion......6 6 6 6 6 6 6 6 6 6 6 6
Vrate kt-ft/1K..34 15 3 0 1 2 2 2 2 1 1 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Wave period (s).0 0 0 0 0 0 0 0 0 0 0 0
Wave height (ft)0 0 0 0 0 0 0 0 0 0 0 0
.FRIDAY...
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 91.
Min humidity........66 percent.
Heat index..........MISSING.
Surface winds (mph).East winds 9 to 16 mph.
Wind (20 ft)........East winds 8 to 14 mph.
Mixing height.......4600 ft AGL.
Transport winds.....East 10 to 16 mph increasing to 15 to 23 mph in
the late morning and afternoon.
Smoke dispersal.....Poor (4700 knot-ft) early in the morning
increasing to excellent (89300 knot-ft) in the
afternoon.
Dispersion..........6.
Wave height.........Less than 1 foot.
Wave period.........0 SECONDS.
TIME (AST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Chc of pcpn (%).10 10 10 10 10 10 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............83 85 87 88 89 90 91 91 91 91 90 88
RH..............84 80 76 72 70 68 67 66 66 67 69 72
Heat index (F)..M M M M M M M M M M M M
20 FT wind dir..E E E E E E E E E E E E
20 FT wind spd..9 10 10 12 14 15 15 16 15 14 13 12
20 FT wind gust.10 12 12 16 17 18 20 20 20 18 16 13
Surface wnd dir.E E E E E E E E E E E E
Surface wnd spd.9 10 10 12 14 15 15 16 15 14 13 12
Surface wnd gst.10 12 12 16 17 18 20 20 20 18 16 13
Mix hgt (kft)...0.5 1.0 1.7 2.7 3.7 4.5 4.6 4.3 3.9 3.8 3.6 3.1
Transp wind dir.E E E E E E E E E E E E
Transp wind spd.10 14 16 20 22 23 22 21 18 17 16 15
Dispersion......6 6 6 6 6 6 6 6 6 6 6 6
Vrate kt-ft/1K..5 12 24 45 70 89 89 77 63 57 50 40
Ventrate Cat....PR PR PR FR GD GD GD GD GD FR FR FR
Wave period (s).0 0 0 0 0 0 0 0 0 0 0 0
Wave height (ft)0 0 0 0 0 0 0 0 0 0 0 0
$$
Forecaster...O. Martinez
Requested by...Odalys Martinez
Type of request...OTHER
.TAG 2418826.0/SJU
.DELDT 07/24/24
.FormatterVersion 2.0.0
.EMAIL odalys.martinez@noaa.gov