270 FNCA52 TJSJ 050752 FWFSJU Fire Weather Planning Forecast for Puerto Rico National Weather Service San Juan PR 352 AM AST Fri Jun 5 2026 .DISCUSSION... A reduction of cloudiness and moisture is expected for today across the area as the patch of cloudiness moves north out of the region. Precipitable water values will drop into the 1.3 in and RH values will remain in the upper 50s to the lowers 60s. Winds will remain up to 15 knots, and even more breezy along coastal areas due to sea breeze variation. Given the expected conditions the fire danger threat will remain low to moderate fire danger risk. Please stay tune for further updates. PRZ014-052015- Southeast Coastal Plains- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Mclear Precip Type Showers None None Chance Precip (%) 0 0 0 Temp (24h trend) 90 (+2) 72 (-2) 90 RH % (24h trend) 56 (-4) 95 (+5) 60 Wind 20ft/early(mph) SE 14 E 11 E 14 Wind 20ft/late(mph) SE 14 E 9 SE 14 Mixing Hgt(ft-agl/msl)5240 4910 Transport Wnd (mph) SE 15 SE 17 Vent Rate (kt-ft) 68120 73650 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ015-052015- Southern Hills- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Mclear Precip Type Showers None Showers Chance Precip (%) 10 0 0 Temp (24h trend) 87 (+4) 69 (-2) 87 RH % (24h trend) 59 (-5) 99 (+7) 64 Wind 20ft/early(mph) SE 12 E 9 E 11 Wind 20ft/late(mph) SE 11 E 10 SE 12 Mixing Hgt(ft-agl/msl)6460 5710 Transport Wnd (mph) SE 14 E 15 Vent Rate (kt-ft) 77520 74230 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ016-052015- North Coastal Plains- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers None Showers Chance Precip (%) 40 0 20 Temp (24h trend) 90 (0) 72 (-1) 90 RH % (24h trend) 58 (+2) 99 (+6) 61 Wind 20ft/early(mph) E 12 E 12 E 13 Wind 20ft/late(mph) E 17 SE 9 E 16 Mixing Hgt(ft-agl/msl)6140 5250 Transport Wnd (mph) E 12 E 14 Vent Rate (kt-ft) 61400 63000 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ017-052015- Northern Hills- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Mclear Precip Type Showers None Showers Chance Precip (%) 30 0 60 Temp (24h trend) 89 (+1) 69 (-2) 88 RH % (24h trend) 57 (+2) 99 (+2) 64 Wind 20ft/early(mph) SE 10 E 10 E 11 Wind 20ft/late(mph) E 14 E 6 E 13 Mixing Hgt(ft-agl/msl)7460 6240 Transport Wnd (mph) E 8 E 10 Vent Rate (kt-ft) 52220 56160 Dispersion 5 5 DSI 6 2 6 RH Recovery Excellent Remarks...None. $$ PRZ018-052015- West Coast- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Mclear Precip Type Showers None None Chance Precip (%) 30 0 0 Temp (24h trend) 91 (+1) 72 (-1) 91 RH % (24h trend) 57 (-1) 100 (+6) 62 Wind 20ft/early(mph) SE 14 E 10 E 13 Wind 20ft/late(mph) E 16 E 10 SE 14 Mixing Hgt(ft-agl/msl)5730 4690 Transport Wnd (mph) SE 14 E 12 Vent Rate (kt-ft) 68760 46900 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ019-052015- Eastern Interior- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 40 10 40 Temp (24h trend) 88 (+2) 70 (-3) 88 RH % (24h trend) 61 (-1) 100 (+7) 65 Wind 20ft/early(mph) SE 12 SE 11 E 12 Wind 20ft/late(mph) SE 13 E 11 SE 12 Mixing Hgt(ft-agl/msl)7080 6500 Transport Wnd (mph) SE 13 SE 15 Vent Rate (kt-ft) 77880 84500 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ022-052015- Luquillo Mountain Range- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 50 20 10 Temp (24h trend) 83 (+3) 68 (-3) 83 RH % (24h trend) 69 (-1) 100 (+5) 71 Wind 20ft/early(mph) SE 11 SE 9 SE 11 Wind 20ft/late(mph) SE 11 E 9 E 11 Mixing Hgt(ft-agl/msl)4530 4040 Transport Wnd (mph) SE 15 SE 16 Vent Rate (kt-ft) 58890 56560 Dispersion 5 5 DSI 6 4 6 RH Recovery Excellent Remarks...None. $$ PRZ023-052015- Central Mountain Range- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Mclear Precip Type Showers None Showers Chance Precip (%) 30 0 30 Temp (24h trend) 87 (+5) 67 (-2) 86 RH % (24h trend) 59 (-4) 100 (+5) 66 Wind 20ft/early(mph) SE 10 SE 6 SE 9 Wind 20ft/late(mph) SE 10 E 5 SE 10 Mixing Hgt(ft-agl/msl)8330 6950 Transport Wnd (mph) SE 8 SE 10 Vent Rate (kt-ft) 58310 62550 Dispersion 5 5 DSI 6 2 6 RH Recovery Excellent Remarks...None. $$ PRZ024-052015- Cayey Mountain Range- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 20 10 50 Temp (24h trend) 83 (+3) 69 (-2) 83 RH % (24h trend) 68 (-1) 100 (+3) 72 Wind 20ft/early(mph) SE 10 E 8 E 10 Wind 20ft/late(mph) SE 10 E 8 SE 10 Mixing Hgt(ft-agl/msl)5400 4940 Transport Wnd (mph) SE 14 SE 15 Vent Rate (kt-ft) 64800 64220 Dispersion 5 5 DSI 6 3 6 RH Recovery Excellent Remarks...None. $$ PRZ025-052015- Vieques- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 50 30 10 Temp (24h trend) 88 (+1) 75 (-2) 88 RH % (24h trend) 62 (0) 93 (+8) 63 Wind 20ft/early(mph) SE 14 E 13 E 14 Wind 20ft/late(mph) SE 13 E 13 E 14 Mixing Hgt(ft-agl/msl)3290 3040 Transport Wnd (mph) SE 18 E 18 Vent Rate (kt-ft) 52640 48640 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ026-052015- Culebra- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Pcldy Mclear Clear Precip Type Showers Showers None Chance Precip (%) 40 20 0 Temp (24h trend) 89 (+2) 76 (-2) 90 RH % (24h trend) 59 (-5) 92 (+8) 60 Wind 20ft/early(mph) SE 16 E 13 E 16 Wind 20ft/late(mph) E 13 E 13 E 16 Mixing Hgt(ft-agl/msl)3320 2970 Transport Wnd (mph) SE 20 E 20 Vent Rate (kt-ft) 56440 50490 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ PRZ027-052015- Southwest Coastal Plains and Mona Island- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Clear Clear Precip Type Showers None None Chance Precip (%) 10 0 0 Temp (24h trend) 92 (+3) 73 (-2) 91 RH % (24h trend) 53 (-4) 96 (+9) 57 Wind 20ft/early(mph) E 18 E 13 E 18 Wind 20ft/late(mph) SE 19 E 14 SE 20 Mixing Hgt(ft-agl/msl)5410 4930 Transport Wnd (mph) SE 17 E 20 Vent Rate (kt-ft) 81150 83810 Dispersion 5 5 DSI 6 5 6 RH Recovery Excellent Remarks...None. $$ VIZ001-052015- Saint Thomas and Saint John- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Clear Precip Type Showers Showers None Chance Precip (%) 20 20 0 Temp (24h trend) 86 (+1) 76 (-2) 86 RH % (24h trend) 64 (-2) 93 (+9) 65 Wind 20ft/early(mph) E 16 E 13 E 17 Wind 20ft/late(mph) E 14 E 14 E 17 Mixing Hgt(ft-agl/msl)3310 3030 Transport Wnd (mph) E 20 E 20 Vent Rate (kt-ft) 56270 51510 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$ VIZ002-052015- St Croix- 352 AM AST Fri Jun 5 2026 Today Tonight Sat Cloud Cover Mclear Mclear Mclear Precip Type Showers Showers Showers Chance Precip (%) 30 30 10 Temp (24h trend) 87 (+1) 75 (-2) 87 RH % (24h trend) 64 (-1) 95 (+9) 65 Wind 20ft/early(mph) E 16 E 12 E 17 Wind 20ft/late(mph) E 13 E 13 E 16 Mixing Hgt(ft-agl/msl)4430 4580 Transport Wnd (mph) E 18 E 21 Vent Rate (kt-ft) 70880 82440 Dispersion 5 5 DSI 6 6 6 RH Recovery Excellent Remarks...None. $$