FNCA52 TJSJ 060755 FWFSJU Fire Weather Planning Forecast for Puerto Rico National Weather Service San Juan PR 355 AM AST Sun Apr 6 2025 .DISCUSSION... Similar conditions to yesterday should prevail today. Winds will remain between 15 - 20 mph, with higher gusts around 26 - 28 mph. The latest KDBI values remain well above fire weather thresholds in Guanica (637), while Cabo Rojo and Maricao slightly increased (370 - 379). Soils in the southern coastal plains of Puerto Rico continue with precipitation deficit and dry soils, contributing to rapid fire spread. As a dry air mass filters into the region today and relative humidities drop near 40 %, elevated fire danger conditions are expected along the southern coastal plains of Puerto Rico. Therefore, a Fire Danger Statement (RFDSJU) will be issued for portions of southern Puerto Rico. PRZ014-070800- Southeast Coastal Plains- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Mclear Precip Type Showers None None Chance Precip (%) 10 0 0 Temp (24h trend) 89 (+2) 68 (-2) 88 RH % (24h trend) 41 (-8) 83 (+1) 42 Wind 20ft/early(mph) E 20 G26 NE 16 G20 SE 16 G21 Wind 20ft/late(mph) E 20 G26 NE 16 G20 SE 16 G21 Mixing Hgt(ft-agl/msl)5550 5480 Transport Wnd (mph) E 16 E 15 Vent Rate (kt-ft) 77700 71240 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ015-070800- Southern Hills- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Pcldy Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 20 10 0 Temp (24h trend) 84 (+2) 63 (-5) 85 RH % (24h trend) 52 (-9) 93 (+4) 51 Wind 20ft/early(mph) E 14 NE 11 SE 12 Wind 20ft/late(mph) E 14 NE 11 SE 12 Mixing Hgt(ft-agl/msl)6400 6670 Transport Wnd (mph) E 13 E 13 Vent Rate (kt-ft) 70400 73370 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ016-070800- North Coastal Plains- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 0 20 30 Temp (24h trend) 86 (+2) 68 (-3) 87 RH % (24h trend) 56 (-10) 94 (+3) 55 Wind 20ft/early(mph) E 19 G22 E 17 G19 E 20 Wind 20ft/late(mph) E 19 G22 E 17 G19 E 20 Mixing Hgt(ft-agl/msl)5010 5740 Transport Wnd (mph) E 17 E 16 Vent Rate (kt-ft) 75150 80360 Dispersion 5 5 DSI 6 5 6 RH Recovery Excellent Remarks...None. $$ PRZ017-070800- Northern Hills- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 10 10 10 Temp (24h trend) 85 (+3) 66 (-2) 87 RH % (24h trend) 57 (-9) 93 (-3) 53 Wind 20ft/early(mph) NE 18 E 14 E 17 Wind 20ft/late(mph) NE 18 E 14 E 17 Mixing Hgt(ft-agl/msl)6410 7410 Transport Wnd (mph) E 13 E 12 Vent Rate (kt-ft) 70510 74100 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ018-070800- West Coast- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Pcldy Mclear Mclear Precip Type Tstms Tstms Showers Chance Precip (%) 60 50 10 Temp (24h trend) 88 (+1) 64 (-3) 87 RH % (24h trend) 54 (-5) 94 (0) 51 Wind 20ft/early(mph) E 14 E 17 SE 13 Wind 20ft/late(mph) E 14 E 17 SE 13 Mixing Hgt(ft-agl/msl)5710 5650 Transport Wnd (mph) E 9 E 10 Vent Rate (kt-ft) 45680 50850 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ019-070800- Eastern Interior- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Pcldy Pcldy Pcldy Precip Type Showers Showers Showers Chance Precip (%) 20 20 30 Temp (24h trend) 84 (+2) 66 (-3) 85 RH % (24h trend) 55 (-9) 93 (+3) 55 Wind 20ft/early(mph) E 13 E 12 E 12 Wind 20ft/late(mph) E 13 E 12 E 12 Mixing Hgt(ft-agl/msl)5930 6850 Transport Wnd (mph) E 14 E 14 Vent Rate (kt-ft) 71160 82200 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ022-070800- Luquillo Mountain Range- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Pcldy Pcldy Pcldy Precip Type Showers Showers Showers Chance Precip (%) 20 30 50 Temp (24h trend) 79 (+2) 64 (-4) 79 RH % (24h trend) 63 (-8) 95 (+3) 65 Wind 20ft/early(mph) E 12 E 10 E 11 Wind 20ft/late(mph) E 12 E 10 E 11 Mixing Hgt(ft-agl/msl)4760 4830 Transport Wnd (mph) E 15 E 16 Vent Rate (kt-ft) 61880 67620 Dispersion 5 5 DSI 6 5 6 RH Recovery Excellent Remarks...None. $$ PRZ023-070800- Central Mountain Range- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Pcldy Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 40 20 0 Temp (24h trend) 83 (+4) 61 (-4) 83 RH % (24h trend) 57 (-9) 96 (-1) 52 Wind 20ft/early(mph) E 12 E 11 E 10 Wind 20ft/late(mph) E 12 E 11 E 10 Mixing Hgt(ft-agl/msl)7930 8490 Transport Wnd (mph) E 7 E 8 Vent Rate (kt-ft) 47580 59430 Dispersion 5 5 DSI 6 2 6 RH Recovery Excellent Remarks...None. $$ PRZ024-070800- Cayey Mountain Range- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 20 10 30 Temp (24h trend) 80 (+2) 64 (-3) 80 RH % (24h trend) 60 (-8) 95 (0) 61 Wind 20ft/early(mph) E 12 E 10 E 10 Wind 20ft/late(mph) E 12 E 10 E 10 Mixing Hgt(ft-agl/msl)5210 5600 Transport Wnd (mph) E 16 E 14 Vent Rate (kt-ft) 72940 67200 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ025-070800- Vieques- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Pcldy Precip Type Showers Showers Showers Chance Precip (%) 20 10 40 Temp (24h trend) 85 (0) 71 (-2) 85 RH % (24h trend) 55 (-5) 83 (+1) 58 Wind 20ft/early(mph) E 14 G19 E 14 G19 E 13 G17 Wind 20ft/late(mph) E 14 G19 E 14 G19 E 13 G17 Mixing Hgt(ft-agl/msl)4270 4160 Transport Wnd (mph) E 20 E 20 Vent Rate (kt-ft) 72590 70720 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ026-070800- Culebra- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Pcldy Precip Type Showers Showers Showers Chance Precip (%) 30 10 50 Temp (24h trend) 86 (+1) 73 (-2) 86 RH % (24h trend) 54 (-8) 85 (+4) 58 Wind 20ft/early(mph) E 14 G19 E 14 G19 E 14 G18 Wind 20ft/late(mph) E 14 G19 E 14 G19 E 14 G18 Mixing Hgt(ft-agl/msl)4350 4150 Transport Wnd (mph) E 20 E 20 Vent Rate (kt-ft) 73950 70550 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ027-070800- Southwest Coastal Plains and Mona Island- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Clear Precip Type Showers Showers None Chance Precip (%) 30 40 0 Temp (24h trend) 90 (+2) 67 (-3) 89 RH % (24h trend) 40 (-8) 87 (-1) 39 Wind 20ft/early(mph) E 21 G28 E 13 SE 20 G26 Wind 20ft/late(mph) E 21 G28 E 13 SE 20 G26 Mixing Hgt(ft-agl/msl)5720 5290 Transport Wnd (mph) E 13 E 18 Vent Rate (kt-ft) 62920 84640 Dispersion 5 5 DSI 5 4 6 RH Recovery Excellent Remarks...None. $$ VIZ001-070800- Saint Thomas and Saint John- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Pcldy Precip Type Showers None Showers Chance Precip (%) 10 0 40 Temp (24h trend) 85 (0) 72 (-2) 86 RH % (24h trend) 54 (-6) 87 (+5) 58 Wind 20ft/early(mph) E 14 G18 E 16 G20 E 16 G19 Wind 20ft/late(mph) E 14 G18 E 16 G20 E 16 G19 Mixing Hgt(ft-agl/msl)4320 4010 Transport Wnd (mph) E 20 E 21 Vent Rate (kt-ft) 73440 72180 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ VIZ002-070800- St Croix- 355 AM AST Sun Apr 6 2025 Today Tonight Mon Cloud Cover Mclear Mclear Pcldy Precip Type Showers None Showers Chance Precip (%) 0 0 30 Temp (24h trend) 85 (0) 72 (-2) 85 RH % (24h trend) 56 (-6) 82 (-2) 58 Wind 20ft/early(mph) E 16 G19 E 14 G18 E 13 G17 Wind 20ft/late(mph) E 16 G19 E 14 G18 E 13 G17 Mixing Hgt(ft-agl/msl)4490 4850 Transport Wnd (mph) E 20 E 17 Vent Rate (kt-ft) 76330 72750 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ $$