256
FNCA72 TJSJ 251119
FWSSJU
SPOT FORECAST FOR SPEED SIGN FIRE...PRFD
NATIONAL WEATHER SERVICE SAN JUAN PR
719 AM AST MON MAY 25 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 AST ON MAY 25.
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.
..WIND ADVISORY IN EFFECT UNTIL 8 PM AST THIS EVENING
DISCUSSION
STRONG WINDS BETWEEN 20 AND 30 MPH WITH HIGHER GUSTS
ARE EXPECTED TODAY ALONG THE SOUTHERN COASTAL PLAINS. A DRIER AIR
MASS WILL DROP RELATIVE HUMIDITY VALUES TO NEAR 50%, AND LIMIT
SHOWER ACTIVITY IN GENERAL. A FIRE DANGER STATEMENT WAS ISSUED FOR
THE SOUTHERN COASTAL PLAINS, AS THE KBDI REPORTED IN CABO ROJO WAS
AT 709. MOISTURE CONTENT WILL INCREASE ON TUESDAY, AND PASSING
SHOWERS CAN BE EXPECTED AT TIMES ALONG THE SOUTHERN COAST OF PR AS
WINDS TURN MORE FROM THE EAST TO SOUTHEAST.
REST OF TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........BREEZY. EAST WINDS 18 TO 25 MPH. GUSTS UP TO 44
MPH INCREASING TO 47 MPH IN THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....EAST 20 TO 26 MPH.
SMOKE DISPERSAL.....GOOD (40900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (73100 KNOT-FT) IN THE
AFTERNOON.
DISPERSION..........6.
EYE LEVEL WINDS.....BREEZY. EAST WINDS 13 TO 17 MPH. GUSTS UP TO 44
MPH INCREASING TO 47 MPH IN THE AFTERNOON.
TIME (AST) 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
SKY (%).........20 20 20 20 29 29 29 29 29 29
WEATHER COV..... ISO ISO ISO ISO ISO ISO
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 10
TEMP............83 85 86 88 88 89 89 89 87 85
RH..............58 55 54 53 55 58 60 60 61 65
20 FT WIND DIR..E E E E E SE SE SE E E
20 FT WIND SPD..22 23 24 25 26 28 29 29 29 28
20 FT WIND GUST.36 38 40 43 44 46 46 47 46 46
EYE LVL WND DIR.E E E E E SE SE SE E E
EYE LVL WND SPD.13 14 14 15 16 17 17 17 17 17
EYE LVL WND GST.22 23 24 26 26 28 28 28 28 28
MIX HGT (KFT)...2.8 3.6 4.2 4.5 4.1 3.4 2.7 2.3 2.0 1.8
TRANSP WIND DIR.E E E E E E E E E E
TRANSP WIND SPD.20 21 22 23 24 25 26 26 25 24
DISPERSION......6 6 6 6 6 6 6 6 6 6
VRATE KT-FT/1K..73 73 73 73 73 73 41 41 41 41
VENTRATE CAT....GD GD GD GD GD GD FR FR FR FR
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 75.
MAX HUMIDITY........87 PERCENT.
WIND (20 FT)........BREEZY. EAST WINDS 17 TO 25 MPH WITH GUSTS TO
AROUND 47 MPH DECREASING TO 13 TO 14 MPH WITH
GUSTS TO AROUND 28 MPH LATE IN THE EVENING.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....EAST 18 TO 24 MPH.
SMOKE DISPERSAL.....GOOD (40900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (20400 KNOT-FT) LATE IN THE
NIGHT.
DISPERSION..........6.
EYE LEVEL WINDS.....BREEZY. EAST WINDS 12 TO 17 MPH WITH GUSTS TO
AROUND 28 MPH DECREASING TO 8 TO 10 MPH WITH
GUSTS TO AROUND 17 MPH LATE IN THE EVENING.
TIME (AST) 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM
SKY (%).........20 20 20 20 20 20 20 20 20 20 20 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............82 81 80 79 78 77 77 76 75 75 75 77
RH..............72 75 77 79 79 80 82 84 86 87 87 83
20 FT WIND DIR..E E E E E E E E E E E E
20 FT WIND SPD..29 29 28 24 20 16 16 16 16 15 15 14
20 FT WIND GUST.47 47 46 40 33 28 26 26 28 25 24 24
EYE LVL WND DIR.E E E E E E E E E E E E
EYE LVL WND SPD.17 17 17 14 12 10 10 10 10 9 9 8
EYE LVL WND GST.28 28 28 24 20 17 16 16 17 15 14 14
MIX HGT (KFT)...1.4 1.0 0.8 0.8 1.0 1.2 1.3 1.4 1.5 1.4 1.3 1.3
TRANSP WIND DIR.E E E E E E E E E E E E
TRANSP WIND SPD.24 24 24 23 21 20 20 21 22 21 20 18
DISPERSION......6 6 6 6 6 6 6 6 6 6 6 6
VRATE KT-FT/1K..41 41 20 20 20 20 20 20 27 27 27 27
VENTRATE CAT....FR FR PR PR PR PR PR PR PR PR PR PR
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). ISOLATED SHOWERS
IN THE LATE MORNING AND AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 88.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........EAST WINDS 13 TO 18 MPH. GUSTS UP TO 33 MPH
INCREASING TO 36 MPH LATE IN THE MORNING.
MIXING HEIGHT.......3200 FT AGL.
TRANSPORT WINDS.....EAST 18 TO 26 MPH.
SMOKE DISPERSAL.....FAIR (27000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (64200 KNOT-FT) IN THE
AFTERNOON.
DISPERSION..........6.
EYE LEVEL WINDS.....EAST WINDS 8 TO 13 MPH. GUSTS UP TO 33 MPH
INCREASING TO 36 MPH LATE IN THE MORNING.
TIME (AST) 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P 1PM
SKY (%).........16 16 16 27 27 27 30 30 30 40 40 40
WEATHER COV..... ISO ISO ISO ISO ISO ISO ISO ISO ISO
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).0 0 0 10 10 10 10 10 10 20 20 20
TEMP............79 81 83 84 86 87 88 88 88 88 86 84
RH..............77 72 68 66 64 62 61 60 59 60 62 67
20 FT WIND DIR..E E E E E E E SE SE SE E E
20 FT WIND SPD..14 15 16 18 20 22 21 21 20 20 18 18
20 FT WIND GUST.24 25 28 30 33 36 36 35 32 32 31 31
EYE LVL WND DIR.E E E E E E E SE SE SE E E
EYE LVL WND SPD.8 9 10 11 12 13 13 13 12 12 11 11
EYE LVL WND GST.14 15 17 18 20 22 22 21 19 19 19 19
MIX HGT (KFT)...1.7 2.1 2.6 2.8 3.0 3.1 3.2 3.1 3.0 2.9 2.7 2.4
TRANSP WIND DIR.E E E E E E E E E E E E
TRANSP WIND SPD.18 21 22 23 25 26 26 26 26 25 25 24
DISPERSION......6 6 6 6 6 6 6 6 6 6 6 6
VRATE KT-FT/1K..27 27 64 64 64 64 64 64 52 52 52 52
VENTRATE CAT....PR PR GD GD GD GD GD GD FR FR FR FR
FORECASTER...D. SANCHEZ
REQUESTED BY...JOSE M. MARTINEZ
TYPE OF REQUEST...WILDFIRE
.TAG 2614333.2/SJU
.DELDT 05/25/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSEMARTIN@DSP.PR.GOV
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