551
FNCA72 TJSJ 201638
FWSSJU
SPOT FORECAST FOR VNWR...USFWS
NATIONAL WEATHER SERVICE SAN JUAN PR
1238 PM AST WED MAR 20 2019
FORECAST IS BASED ON FORECAST START TIME OF 1400 AST ON MARCH 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
QUESTIONS OR CONCERNS ABOUT THIS FORECAST, CONTACT (787) 253-4501.
DISCUSSION
RECENT KBDI AND 10-HOUR FUEL MOISTURE SHOW VALUES
AROUND 460 AND 9 PERCENT IN VIEQUES, RESPECTIVELY. A PATCH OF
LOW-LEVEL MOISTURE WILL CONTINUE TO MOVE ACROSS THE REGION TODAY,
ENHANCING CLOUD COVERAGE AND SHOWER DEVELOPMENT PARTICULARLY
DOWNWIND FROM THE ISLAND. THAT SAID, STREAM-LIKE CLOUDS AND
SHOWERS ORIGINATING FROM SAINT CROIX MAY AFFECT THIS AREA UNDER
A SOUTHEAST WIND FLOW RANGING BETWEEN 10-15 MPH WITH HIGHER GUSTS.
IN COMPARISON WITH THE NEAREST FIRE WEATHER STATION CRITERIA, A
LOW FIRE WEATHER DANGER IS EXPECTED DURING THE REQUESTED PERIOD.
NEVERTHELESS, SIGNIFICANT WETTING RAINS ARE NOT EXPECTED AT THIS
TIME.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). SCATTERED
SHOWERS.
CHANCE OF PCPN......40 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........76 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHEAST WINDS 12 TO 13 MPH.
MIXING HEIGHT.......2600-3100 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 14 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (33600 KNOT-FT).
DISPERSION..........6.
TIME (AST) 2PM 3PM 4PM 5PM
SKY (%).........50 50 50 50
WEATHER COV.....SCT SCT SCT SCT
WEATHER TYPE....RW RW RW RW
TSTM COV........
CHC OF PCPN (%).40 40 40 40
LAL.............1 1 1 1
TEMP............83 83 82 80
RH..............76 77 80 83
20 FT WIND DIR..E E SE SE
20 FT WIND SPD..11 11 10 10
20 FT WIND GUST.12 12 11 11
MIX HGT (KFT)...2.6 2.7 2.9 3.1
MIXNG WIND DIR..E E SE SE
MIXNG WIND SPD..15 15 14 14
DISPERSION......6 6 6 6
VRATE KT-FT/100034 35 35 37
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). ISOLATED
SHOWERS.
CHANCE OF PCPN......20 PERCENT.
LAL.................NO TSTMS.
MIN TEMPERATURE.....AROUND 74.
MAX HUMIDITY........90 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 10 TO 12 MPH.
MIXING HEIGHT.......2500-3100 FT AGL.
TRANSPORT WINDS.....EAST 13 TO 14 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (27900-37600 KNOT-FT).
DISPERSION..........6.
TIME (AST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 30 30 30 30 30 30 30 30 30 30 30
WEATHER COV.....ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).20 20 20 20 20 20 20 20 20 20 20 20
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............79 78 77 77 76 76 75 75 74 74 74 74
RH..............84 83 82 83 82 82 83 83 83 84 81 81
20 FT WIND DIR..SE E E E E E E E E E E E
20 FT WIND SPD..10 10 11 11 10 10 10 10 10 9 9 9
20 FT WIND GUST.11 11 12 12 11 11 11 11 11 10 10 10
MIX HGT (KFT)...3.1 3.1 3.0 2.9 2.7 2.6 2.6 2.6 2.6 2.6 2.5 2.5
MIXNG WIND DIR..SE SE SE SE E E E E E E E E
MIXNG WIND SPD..14 13 13 13 14 14 14 14 14 14 13 13
DISPERSION......6 6 6 6 6 6 6 6 6 6 6 6
VRATE KT-FT/100038 34 33 32 33 32 31 31 31 31 28 28
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). ISOLATED SHOWERS.
CHANCE OF PCPN......20 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........74 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 8 TO 10 MPH.
MIXING HEIGHT.......1900-2800 FT AGL.
TRANSPORT WINDS.....EAST 9 TO 13 MPH.
SMOKE DISPERSAL.....FAIR (17700 KNOT-FT).
DISPERSION..........6.
TIME (AST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 30 30 30 30 30 20 20 20 20 20 20
WEATHER COV.....ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO ISO
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).20 20 20 20 20 20 10 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............75 77 78 80 81 82 82 83 83 83 82 80
RH..............80 77 74 74 74 73 72 74 75 75 75 78
20 FT WIND DIR..E E E E E E E E E E E E
20 FT WIND SPD..9 9 10 9 9 8 8 8 7 7 8 8
20 FT WIND GUST.10 10 11 10 10 10 10 10 8 8 10 10
MIX HGT (KFT)...2.5 2.5 2.5 2.3 2.0 1.9 2.0 2.2 2.4 2.6 2.7 2.8
MIXNG WIND DIR..E E E E E E E E SE E E E
MIXNG WIND SPD..13 13 13 13 12 12 10 9 9 9 10 10
DISPERSION......6 6 6 6 6 6 6 6 6 6 6 6
VRATE KT-FT/100028 28 27 25 20 19 18 18 20 21 25 25
FORECASTER...IAN COLON-PAGAN/EMANUEL RODRIGUEZ-GONZALEZ
REQUESTED BY...MARTIN RAMOS ICT5,SINGLE RESOURCE
TYPE OF REQUEST...WILDFIRE
.TAG 1903958.0/SJU
.DELDT 03/20/19
.EMAIL MARTIN_RAMOS@FWS.GOV
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