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

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FNCA52 TJSJ 200939
FWFSJU

Fire Weather Planning Forecast for PUERTO RICO
National Weather Service SAN JUAN PR
539 AM AST Fri Apr 20 2018

.DISCUSSION...
A patch of low level clouds with passing showers are expected to
move during the morning hours across the eastern portions of
Puerto Rico. Then in the afternoon showers and thunderstorms are
expected to develop over the northwest quadrant of Puerto Rico.
Winds will increase today and on Saturday and RH values could drop
to the mid to high 40 percent. However, fire danger overall should
be low.


PRZ014-210945-
Southeast Coastal Plains-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     40           40           20
TEMP (24H TREND)      91 (+3)      68 (-1)      89
RH % (24H TREND)      45 (-4)      100 (+8)     50
20FTWND-VAL/AM(MPH)   E 14                      E 13 G20
20FTWND-RDG/PM(MPH)   SE 16        E 10         SE 16
MIXING HGT(FT-AGL/MSL)6129                      6274
TRANSPORT WND (MPH)   E 21                      E 17
VENT RATE (KT-FT)     109580                    94958
DISPERSION            5                         5
DSI                   6            4            6
LAL                   2            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ015-210945-
Southern Hills-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     60           40           40
TEMP (24H TREND)      87 (+3)      66 (0)       86
RH % (24H TREND)      51 (-4)      100 (+3)     54
20FTWND-VAL/AM(MPH)   E 13                      E 12
20FTWND-RDG/PM(MPH)   SE 14        E  9         SE 14
MIXING HGT(FT-AGL/MSL)6144                      6229
TRANSPORT WND (MPH)   E 18                      E 16
VENT RATE (KT-FT)     103377                    88725
DISPERSION            5                         5
DSI                   6            4            5
LAL                   2            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ016-210945-
North Coastal Plains-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     60           40           40
TEMP (24H TREND)      89 (+2)      69 (-2)      87
RH % (24H TREND)      51 (-5)      98 (+10)     55
20FTWND-VAL/AM(MPH)   E 13                      E 12
20FTWND-RDG/PM(MPH)   E 15         E 11         E 15
MIXING HGT(FT-AGL/MSL)5560                      5640
TRANSPORT WND (MPH)   E 18                      E 16
VENT RATE (KT-FT)     94969                     84421
DISPERSION            5                         5
DSI                   6            5            6
LAL                   2            2            2
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ017-210945-
Northern Hills-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        tstms        tstms
CHANCE PRECIP (%)     70           50           70
TEMP (24H TREND)      88 (+2)      66 (0)       85
RH % (24H TREND)      53 (-4)      100 (+1)     56
20FTWND-VAL/AM(MPH)   E 11                      E 10
20FTWND-RDG/PM(MPH)   E 12         E  8         E 10
MIXING HGT(FT-AGL/MSL)5452                      5584
TRANSPORT WND (MPH)   E 16                      E 14
VENT RATE (KT-FT)     89341                     78358
DISPERSION            5                         5
DSI                   6            4            6
LAL                   2            2            2
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ018-210945-
West Coast-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        MClear       MClear
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     60           20           30
TEMP (24H TREND)      88 (+3)      68 (-2)      86
RH % (24H TREND)      51 (-9)      99 (+7)      55
20FTWND-VAL/AM(MPH)   E 12                      E 10
20FTWND-RDG/PM(MPH)   SE  9        NE  6        E 10
MIXING HGT(FT-AGL/MSL)6148                      6277
TRANSPORT WND (MPH)   E 15                      E 12
VENT RATE (KT-FT)     102967                    83636
DISPERSION            5                         5
DSI                   6            4            6
LAL                   2            2            2
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ019-210945-
Eastern Interior-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     70           60           40
TEMP (24H TREND)      88 (+2)      67 (-2)      86
RH % (24H TREND)      53 (-2)      100 (+6)     56
20FTWND-VAL/AM(MPH)   E 12                      E 11
20FTWND-RDG/PM(MPH)   E 13         E  9         E 13
MIXING HGT(FT-AGL/MSL)5694                      5515
TRANSPORT WND (MPH)   E 18                      E 17
VENT RATE (KT-FT)     93759                     84858
DISPERSION            5                         5
DSI                   6            5            6
LAL                   2            1            2
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ022-210945-
Luquillo Mountain Range-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     60           70           70
TEMP (24H TREND)      83 (+3)      65 (-2)      82
RH % (24H TREND)      62 (-2)      100 (+8)     64
20FTWND-VAL/AM(MPH)   E 13                      E 12
20FTWND-RDG/PM(MPH)   E 13         E  9         E 14
MIXING HGT(FT-AGL/MSL)4213                      4102
TRANSPORT WND (MPH)   E 18                      E 18
VENT RATE (KT-FT)     69374                     65238
DISPERSION            5                         5
DSI                   6            6            6
LAL                   2            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ023-210945-
Central Mountain Range-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      tstms
CHANCE PRECIP (%)     70           40           40
TEMP (24H TREND)      85 (+4)      64 (0)       83
RH % (24H TREND)      56 (-4)      100 (+2)     59
20FTWND-VAL/AM(MPH)   E 11                      E 10
20FTWND-RDG/PM(MPH)   E 10         E  7         E 10
MIXING HGT(FT-AGL/MSL)5485                      5727
TRANSPORT WND (MPH)   E 15                      E 13
VENT RATE (KT-FT)     80496                     67522
DISPERSION            5                         5
DSI                   5            3            5
LAL                   2            2            2
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ024-210945-
Cayey Mountain Range-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      showers
CHANCE PRECIP (%)     70           40           40
TEMP (24H TREND)      84 (+1)      66 (-2)      83
RH % (24H TREND)      57 (0)       100 (+7)     59
20FTWND-VAL/AM(MPH)   E 13                      E 11
20FTWND-RDG/PM(MPH)   E 14         E  9         E 14
MIXING HGT(FT-AGL/MSL)5143                      4888
TRANSPORT WND (MPH)   E 20                      E 18
VENT RATE (KT-FT)     87340                     79131
DISPERSION            5                         5
DSI                   6            5            6
LAL                   2            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ025-210945-
Vieques-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     40           70           40
TEMP (24H TREND)      85 (+1)      74 (-1)      85
RH % (24H TREND)      62 (-2)      90 (+9)      63
20FTWND-VAL/AM(MPH)   E 17                      E 15
20FTWND-RDG/PM(MPH)   E 15         E 14         E 16
MIXING HGT(FT-AGL/MSL)3470                      3447
TRANSPORT WND (MPH)   E 22                      E 22
VENT RATE (KT-FT)     65397                     63445
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ026-210945-
Culebra-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     40           40           40
TEMP (24H TREND)      86 (+3)      74 (-3)      85
RH % (24H TREND)      61 (-5)      90 (+10)     63
20FTWND-VAL/AM(MPH)   E 18                      E 16
20FTWND-RDG/PM(MPH)   E 16         E 16         E 16
MIXING HGT(FT-AGL/MSL)3375                      3258
TRANSPORT WND (MPH)   E 25                      E 22
VENT RATE (KT-FT)     73674                     61902
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

PRZ027-210945-
Southwest Coastal Plains and Mona Island-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           MClear       MClear       MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     40           20           20
TEMP (24H TREND)      91 (+4)      69 (-1)      88
RH % (24H TREND)      45 (-9)      95 (+5)      48
20FTWND-VAL/AM(MPH)   E 15                      E 14 G22
20FTWND-RDG/PM(MPH)   SE 17        E 12         SE 16
MIXING HGT(FT-AGL/MSL)6381                      6447
TRANSPORT WND (MPH)   E 20                      E 15
VENT RATE (KT-FT)     112463                    91498
DISPERSION            5                         5
DSI                   6            5            6
LAL                   1            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

VIZ001-210945-
Saint Thomas and Saint John-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        MClear       MClear
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     40           20           20
TEMP (24H TREND)      86 (+1)      71 (-1)      85
RH % (24H TREND)      59 (-1)      95 (+7)      59
20FTWND-VAL/AM(MPH)   E 18                      E 16
20FTWND-RDG/PM(MPH)   E 16         E 15         E 16
MIXING HGT(FT-AGL/MSL)3439                      3286
TRANSPORT WND (MPH)   E 25                      E 22
VENT RATE (KT-FT)     74881                     63893
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$

VIZ002-210945-
St Croix-
539 AM AST Fri Apr 20 2018

                      Today        Tonight      Sat

CLOUD COVER           PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      showers
CHANCE PRECIP (%)     20           40           40
TEMP (24H TREND)      86 (0)       70 (-3)      87
RH % (24H TREND)      59 (+1)      97 (+8)      59
20FTWND-VAL/AM(MPH)   E 18                      E 16
20FTWND-RDG/PM(MPH)   E 15         E 14         E 17
MIXING HGT(FT-AGL/MSL)3361                      3472
TRANSPORT WND (MPH)   E 25                      E 24
VENT RATE (KT-FT)     75592                     71241
DISPERSION            5                         5
DSI                   6            6            6
LAL                   1            1            1
HAINES INDEX          3            3            3

Remarks...None.


$$


$$



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