FNCA52 TJSJ 220825 FWFSJU Fire Weather Planning Forecast for Puerto Rico National Weather Service San Juan PR 425 AM AST Sat Aug 22 2026 .DISCUSSION... Cloudiness and showers are forecast for today resulting in RH values slightly above the threshold values. Surface winds will remain from the east at 15 mph or less with gusty winds. Soils conditions remain on the favorable side for fire danger criteria. However, given the expected weather conditions there is a low to moderate fire danger is expected today. PRZ014-222015- Southeast Coastal Plains- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 40 30 20 Temp (24h trend) 93 (+2) 75 (-2) 93 RH % (24h trend) 47 (-3) 85 (-1) 48 Wind 20ft/early(mph) E 13 E 12 E 16 Wind 20ft/late(mph) SE 17 NE 10 SE 16 Mixing Hgt(ft-agl/msl)4960 5780 Transport Wnd (mph) E 14 E 17 Vent Rate (kt-ft) 59520 86700 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ015-222015- Southern Hills- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Mclear Precip Type Tstms Showers Showers Chance Precip (%) 60 20 30 Temp (24h trend) 90 (+3) 71 (-3) 90 RH % (24h trend) 56 (-3) 97 (+4) 55 Wind 20ft/early(mph) E 11 E 11 E 12 Wind 20ft/late(mph) E 12 E 10 SE 12 Mixing Hgt(ft-agl/msl)5630 6250 Transport Wnd (mph) E 13 E 16 Vent Rate (kt-ft) 61930 87500 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ016-222015- North Coastal Plains- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Showers Chance Precip (%) 50 20 30 Temp (24h trend) 91 (+2) 74 (-3) 92 RH % (24h trend) 59 (-6) 97 (+4) 59 Wind 20ft/early(mph) E 12 E 16 E 13 Wind 20ft/late(mph) E 17 E 11 E 19 Mixing Hgt(ft-agl/msl)4760 5420 Transport Wnd (mph) E 14 E 16 Vent Rate (kt-ft) 57120 75880 Dispersion 5 5 DSI 6 5 6 RH Recovery Excellent Remarks...None. $$ PRZ017-222015- Northern Hills- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Tstms Chance Precip (%) 60 10 60 Temp (24h trend) 90 (+2) 71 (-3) 90 RH % (24h trend) 62 (-2) 99 (+2) 59Wind 20ft/early(mph) E 11 E 12 E 12 Wind 20ft/late(mph) NE 14 E 9 E 16 Mixing Hgt(ft-agl/msl)5620 6100 Transport Wnd (mph) E 10 E 15 Vent Rate (kt-ft) 50580 79300 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ018-222015- West Coast- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Mclear Precip Type Tstms Showers Tstms Chance Precip (%) 60 10 60 Temp (24h trend) 94 (+3) 72 (-3) 93 RH % (24h trend) 58 (-5) 98 (+4) 56 Wind 20ft/early(mph) E 14 E 11 E 12 Wind 20ft/late(mph) E 11 E 10 E 13 Mixing Hgt(ft-agl/msl)4840 5210 Transport Wnd (mph) E 7 SE 14 Vent Rate (kt-ft) 29040 62520 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ019-222015- Eastern Interior- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Showers Chance Precip (%) 50 40 50 Temp (24h trend) 90 (+2) 73 (-3) 91 RH % (24h trend) 57 (-4) 96 (+2) 58 Wind 20ft/early(mph) E 11 E 11 E 12 Wind 20ft/late(mph) E 12 E 11 E 13 Mixing Hgt(ft-agl/msl)6270 7080 Transport Wnd (mph) E 13 E 16 Vent Rate (kt-ft) 68970 99120 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ022-222015- Luquillo Mountain Range- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Showers Chance Precip (%) 50 40 60 Temp (24h trend) 86 (+4) 70 (-3) 85 RH % (24h trend) 65 (-5) 99 (+3) 65 Wind 20ft/early(mph) E 9 E 9 E 11 Wind 20ft/late(mph) E 11 E 9 E 12 Mixing Hgt(ft-agl/msl)4470 5060 Transport Wnd (mph) E 13 E 16 Vent Rate (kt-ft) 49170 70840 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ023-222015- Central Mountain Range- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Tstms Chance Precip (%) 70 10 60 Temp (24h trend) 88 (+4) 68 (-3) 88 RH % (24h trend) 63 (-2) 100 (+2)60 Wind 20ft/early(mph) E 9 E 9 E 9 Wind 20ft/late(mph) E 9 E 6 E 10 Mixing Hgt(ft-agl/msl)6560 6710 Transport Wnd (mph) E 9 E 14 Vent Rate (kt-ft) 52480 80520 Dispersion 5 5 DSI 6 2 6 RH Recovery Excellent Remarks...None. $$ PRZ024-222015- Cayey Mountain Range- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Showers Showers Showers Chance Precip (%) 40 40 40 Temp (24h trend) 86 (+2) 70 (-3) 86 RH % (24h trend) 62 (-2) 98 (0) 63 Wind 20ft/early(mph) E 9 E 9 E 11 Wind 20ft/late(mph) E 11 E 8 E 11 Mixing Hgt(ft-agl/msl)5340 5980 Transport Wnd (mph) E 14 E 16 Vent Rate (kt-ft) 64080 83720 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ025-222015- Vieques- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Tstms Chance Precip (%) 50 40 60 Temp (24h trend) 91 (+3) 79 (-1) 91 RH % (24h trend) 56 (-6) 81 (-1) 57 Wind 20ft/early(mph) E 12 E 14 E 14 Wind 20ft/late(mph) E 13 E 14 E 13 Mixing Hgt(ft-agl/msl)3360 3520 Transport Wnd (mph) E 16 E 17 Vent Rate (kt-ft) 47040 52800 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ026-222015- Culebra- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Tstms Showers Tstms Chance Precip (%) 50 30 60 Temp (24h trend) 91 (+3) 79 (-2) 92 RH % (24h trend) 57 (-10) 86 (+1) 59 Wind 20ft/early(mph) E 12 E 14 E 16 Wind 20ft/late(mph) E 12 E 14 E 13 Mixing Hgt(ft-agl/msl)3430 3590 Transport Wnd (mph) E 15 E 18 Vent Rate (kt-ft) 44590 57440 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ027-222015- Southwest Coastal Plains and Mona Island- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 40 10 10 Temp (24h trend) 94 (+4) 74 (-2) 94 RH % (24h trend) 48 (-5)86 (-1) 49 Wind 20ft/early(mph) E 14 E 14 E 17 Wind 20ft/late(mph) SE 16 E 13 SE 19 Mixing Hgt(ft-agl/msl)4990 5450 Transport Wnd (mph) E 14 E 20 Vent Rate (kt-ft) 59880 92650 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ VIZ001-222015- Saint Thomas and Saint John- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Mclear Pcldy Precip Type Showers Showers Showers Chance Precip (%) 50 30 50 Temp (24h trend) 90 (+3) 78 (-2) 90 RH % (24h trend) 58 (-7) 86 (+2) 59 Wind 20ft/early(mph) E 13 E 14 E 16 Wind 20ft/late(mph) E 13 E 14 E 14 Mixing Hgt(ft-agl/msl)3500 3420 Transport Wnd (mph) E 15 E 18 Vent Rate (kt-ft) 45500 54720 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ VIZ002-222015- St Croix- 425 AM AST Sat Aug 22 2026 Today Tonight Sun Cloud Cover Pcldy Pcldy Pcldy Precip Type Tstms Showers Showers Chance Precip (%) 50 40 30 Temp (24h trend) 90 (+2) 78 (-2) 90 RH % (24h trend) 60 (-6) 86 (+2) 63 Wind 20ft/early(mph) E 14 E 14 E 14 Wind 20ft/late(mph) E 13 E 14 E 14 Mixing Hgt(ft-agl/msl)4500 5110 Transport Wnd (mph) E 16 E 18 Vent Rate (kt-ft) 63000 81760 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$