Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR

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FNCA52 TJSJ 180815
FWFSJU

Fire Weather Planning Forecast for PUERTO RICO
National Weather Service SAN JUAN PR
415 AM AST Sun Feb 18 2018

.DISCUSSION...The local winds will continue to be moderate today,
generally at 10-15 mph across the south coastal plains,
occasionally higher across northern PR. Relative humidity values
expected to be near the critical thresholds and the KBDI values
continue to increase. Continued drying of fuels is expected for
the next several days. Fuel moisture is generally in the 8-10%
range across the south coastal plains of PR, higher elsewhere.
There is a slightly heightened chance of wildfires today due to
the high KBDI and the Relative Humidity being close to the
critical thresholds, but the winds are expected to be below its
critical thresholds. However, the local winds will increase
significantly by Monday, so the fire danger is expected to
increase significantly Monday and Tuesday, especially when
moisture is still expected to be low.

PRZ014-190815-
Southeast Coastal Plains-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           0            10
TEMP (24H TREND)      85 (+2)      67 (-1)      86
RH % (24H TREND)      42 (-9)      88 (-2)      45
20FTWND-VAL/AM(MPH)   E 13                      NE 15
20FTWND-RDG/PM(MPH)   E 16         NE 12        E 17
MIXING HGT(FT-AGL/MSL)7329                      6335
TRANSPORT WND (MPH)   E 21                      E 29
VENT RATE (KT-FT)     135225                    160372
DISPERSION            5                         5
DSI                   6            5            6
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ015-190815-
Southern Hills-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           0            10
TEMP (24H TREND)      82 (+3)      64 (-1)      83
RH % (24H TREND)      43 (-13)     92 (-2)      48
20FTWND-VAL/AM(MPH)   E 12                      NE 14
20FTWND-RDG/PM(MPH)   E 14         NE 11        E 15
MIXING HGT(FT-AGL/MSL)7565                      6476
TRANSPORT WND (MPH)   E 18                      E 25
VENT RATE (KT-FT)     125550                    150930
DISPERSION            5                         5
DSI                   5            5            6
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ016-190815-
North Coastal Plains-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           20           20
TEMP (24H TREND)      83 (+3)      68 (-1)      84
RH % (24H TREND)      51 (-11)     93 (+2)      51
20FTWND-VAL/AM(MPH)   E 12                      E 15
20FTWND-RDG/PM(MPH)   E 16         E 12         E 17
MIXING HGT(FT-AGL/MSL)6460                      5711
TRANSPORT WND (MPH)   E 21                      E 28
VENT RATE (KT-FT)     112487                    145379
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ017-190815-
Northern Hills-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           10           20
TEMP (24H TREND)      82 (+4)      64 (-1)      83
RH % (24H TREND)      48 (-13)     97 (+1)      51
20FTWND-VAL/AM(MPH)   E  9                      E 13
20FTWND-RDG/PM(MPH)   E 14         E 10         E 15
MIXING HGT(FT-AGL/MSL)7406                      6034
TRANSPORT WND (MPH)   E 18                      E 26
VENT RATE (KT-FT)     114480                    141231
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ018-190815-
West Coast-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           0            20
TEMP (24H TREND)      84 (+1)      65 (-1)      83
RH % (24H TREND)      45 (-9)      96 (+2)      51
20FTWND-VAL/AM(MPH)   E 10                      E 12
20FTWND-RDG/PM(MPH)   E 11         E 12         E 14
MIXING HGT(FT-AGL/MSL)7663                      6577
TRANSPORT WND (MPH)   E 16                      E 23
VENT RATE (KT-FT)     114368                    142960
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ019-190815-
Eastern Interior-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           20           20
TEMP (24H TREND)      83 (+4)      65 (-1)      84
RH % (24H TREND)      52 (-10)     94 (-1)      52
20FTWND-VAL/AM(MPH)   E 10                      E 14
20FTWND-RDG/PM(MPH)   E 13         E  9         E 15
MIXING HGT(FT-AGL/MSL)6964                      5765
TRANSPORT WND (MPH)   E 20                      E 25
VENT RATE (KT-FT)     117764                    136618
DISPERSION            5                         5
DSI                   6            5            6
LAL                   1            1            1
HAINES INDEX          3            2            2

Remarks...None.

$$

PRZ022-190815-
Luquillo Mountain Range-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     30           30           30
TEMP (24H TREND)      78 (+2)      63 (-1)      81
RH % (24H TREND)      63 (-7)      95 (-1)      56
20FTWND-VAL/AM(MPH)   E 12                      E 14
20FTWND-RDG/PM(MPH)   E 13         E 11         E 15
MIXING HGT(FT-AGL/MSL)4345                      5138
TRANSPORT WND (MPH)   E 18                      E 24
VENT RATE (KT-FT)     76823                     126253
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          4            2            2

Remarks...None.

$$

PRZ023-190815-
Central Mountain Range-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      NONE         showers
CHANCE PRECIP (%)     20           0            20
TEMP (24H TREND)      80 (+4)      62 (-1)      80
RH % (24H TREND)      46 (-14)     95 (-1)      53
20FTWND-VAL/AM(MPH)   E 10                      E 13
20FTWND-RDG/PM(MPH)   E 13         E 11         NE 14
MIXING HGT(FT-AGL/MSL)7672                      6117
TRANSPORT WND (MPH)   E 17                      E 24
VENT RATE (KT-FT)     116910                    142029
DISPERSION            5                         5
DSI                   5            4            5
LAL                   1            1            1
HAINES INDEX          3            3            2

Remarks...None.

$$

PRZ024-190815-
Cayey Mountain Range-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       PCldy        MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           10           10
TEMP (24H TREND)      78 (+1)      62 (-2)      80
RH % (24H TREND)      60 (-3)      97 (-1)      54
20FTWND-VAL/AM(MPH)   E 12                      NE 13
20FTWND-RDG/PM(MPH)   E 14         NE 10        E 16
MIXING HGT(FT-AGL/MSL)5115                      5255
TRANSPORT WND (MPH)   E 20                      E 26
VENT RATE (KT-FT)     98192                     136378
DISPERSION            5                         5
DSI                   6            5            6
LAL                   1            1            1
HAINES INDEX          3            2            2

Remarks...None.

$$

PRZ025-190815-
Vieques-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     30           30           30
TEMP (24H TREND)      82 (+1)      69 (-2)      84
RH % (24H TREND)      60 (-5)      91 (+3)      53
20FTWND-VAL/AM(MPH)   E 18                      E 20
20FTWND-RDG/PM(MPH)   E 17         E 19         E 18
MIXING HGT(FT-AGL/MSL)3999                      4824
TRANSPORT WND (MPH)   E 23                      E 29
VENT RATE (KT-FT)     73953                     119375
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          4            2            2

Remarks...None.

$$

PRZ026-190815-
Culebra-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     30           30           30
TEMP (24H TREND)      83 (+2)      70 (-3)      86
RH % (24H TREND)      57 (-9)      86 (+2)      52
20FTWND-VAL/AM(MPH)   E 18                      E 21
20FTWND-RDG/PM(MPH)   E 17         E 19         E 19
MIXING HGT(FT-AGL/MSL)3850                      4624
TRANSPORT WND (MPH)   E 23                      E 30
VENT RATE (KT-FT)     73795                     118407
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          4            3            2

Remarks...None.

$$

PRZ027-190815-
Southwest Coastal Plains and Mona Island-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      NONE         showers
CHANCE PRECIP (%)     20           0            10
TEMP (24H TREND)      85 (+2)      65 (-2)      86
RH % (24H TREND)      37 (-15)     94 (+3)      45
20FTWND-VAL/AM(MPH)   E 12                      E 14
20FTWND-RDG/PM(MPH)   E 16         E 12         E 16
MIXING HGT(FT-AGL/MSL)7729                      6720
TRANSPORT WND (MPH)   E 17                      E 23
VENT RATE (KT-FT)     130824                    155367
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            4            2

Remarks...None.

$$

VIZ001-190815-
Saint Thomas and Saint John-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     30           30           30
TEMP (24H TREND)      84 (0)       68 (-4)      87
RH % (24H TREND)      52 (-7)      87 (+4)      45
20FTWND-VAL/AM(MPH)   E 18                      E 20
20FTWND-RDG/PM(MPH)   E 17         E 19         E 19
MIXING HGT(FT-AGL/MSL)3983                      4570
TRANSPORT WND (MPH)   E 24                      E 31
VENT RATE (KT-FT)     76018                     122886
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          4            3            2

Remarks...None.

$$

VIZ002-190815-
St Croix-
415 AM AST Sun Feb 18 2018

                      Today        Tonight      Mon

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     30           20           20
TEMP (24H TREND)      84 (0)       70 (-1)      85
RH % (24H TREND)      54 (-6)      85 (+2)      51
20FTWND-VAL/AM(MPH)   E 18                      E 20
20FTWND-RDG/PM(MPH)   E 18         E 19         E 18
MIXING HGT(FT-AGL/MSL)4026                      4789
TRANSPORT WND (MPH)   E 25                      E 32
VENT RATE (KT-FT)     78758                     135912
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          4            3            2

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...

.TUESDAY...MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE UPPER 60S.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 15 MPH.
.WEDNESDAY...PARTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS AROUND
80. NORTHEAST WINDS AROUND 15 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS IN THE
UPPER 70S. NORTHEAST WINDS AROUND 15 MPH.
.FRIDAY...PARTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS IN THE
UPPER 70S. NORTHEAST WINDS AROUND 10 MPH.
.SATURDAY...MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE UPPER
60S. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND 10 MPH.

$$


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