Alerts from NWS San Juan PR (UNOFFICIAL)
LightNews LightNews
sju.nws-bot.us
Alerts from NWS San Juan PR (UNOFFICIAL)
@sju.nws-bot.us
350 followers 1 following 3.5K posts
Unofficial bot sharing alerts from NWS San Juan PR.

This account is not monitored. Contact @wandrme.paxex.aero if needed.
Posts Replies Media Videos
sju.nws-bot.us
Flood Advisory issued December 2 at 4:25PM AST until December 2 at 6:30PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Hormigueros and Mayaguez. * WHEN...Until 630 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 424 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Mayaguez and Hormigueros. - http://www.weather.gov/safety/flood
December 2, 2025 at 8:30 PM
sju.nws-bot.us
Flood Advisory issued December 2 at 3:46PM AST until December 2 at 5:45PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...San German. * WHEN...Until 545 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 346 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 2.5 inches of rain have fallen. - Additional rainfall amounts up to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... San German, Sabana Grande, Monte Grande and Sabana Eneas. - http://www.weather.gov/safety/flood
December 2, 2025 at 8:00 PM
sju.nws-bot.us
Flood Advisory issued December 2 at 3:43PM AST until December 2 at 5:45PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Aibonito. * WHEN...Until 545 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. * ADDITIONAL DETAILS... - At 342 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding.
December 2, 2025 at 7:45 PM
sju.nws-bot.us
Marine Weather Statement issued December 1 at 6:09PM AST by NWS San Juan PR
Additional Details Here.
A Marine Weather Statement has been issued for the following areas... Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix... Coastal Waters of Southern Puerto Rico out 10 NM... At 608 PM AST, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 25 knots. This thunderstorm was located over mainly areas of Caribbean waters, moving southwest at 15 knots.
December 1, 2025 at 10:15 PM
sju.nws-bot.us
Small Craft Advisory issued December 1 at 4:36AM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 AM AST early this morning. * IMPACTS...Conditions will be hazardous to small craft.
December 1, 2025 at 8:45 AM
sju.nws-bot.us
Small Craft Advisory issued November 30 at 7:37PM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 AM AST Monday. * IMPACTS...Conditions will be hazardous to small craft.
November 30, 2025 at 11:46 PM
sju.nws-bot.us
Small Craft Advisory issued November 30 at 4:29PM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 AM AST Monday. * IMPACTS...Conditions will be hazardous to small craft.
November 30, 2025 at 8:45 PM
sju.nws-bot.us
Flood Advisory issued November 30 at 2:58PM AST until November 30 at 4:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Mayaguez. * WHEN...Until 400 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 257 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 1 inch of rain has fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood
November 30, 2025 at 7:00 PM
sju.nws-bot.us
Small Craft Advisory issued November 30 at 10:17AM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 AM AST Monday. * IMPACTS...Conditions will be hazardous to small craft.
November 30, 2025 at 2:30 PM
sju.nws-bot.us
Small Craft Advisory issued November 30 at 5:54AM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft expected. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...From 6 AM Sunday to 6 AM AST Monday. * IMPACTS...Conditions will be hazardous to small craft.
November 30, 2025 at 10:00 AM
sju.nws-bot.us
Small Craft Advisory issued November 29 at 4:29PM AST until December 1 at 6:00AM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft expected. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...From 6 AM Sunday to 6 AM AST Monday. * IMPACTS...Conditions will be hazardous to small craft.
November 29, 2025 at 8:45 PM
sju.nws-bot.us
Marine Weather Statement issued November 29 at 2:00PM AST by NWS San Juan PR
Additional Details Here.
The areas affected include... Coastal Waters OF Northwestern Puerto Rico out 10 NM... Coastal Waters OF Southwestern Puerto Rico out 10 NM... Mona Passage Southward to 17N... At 158 PM AST, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located over northern Cabo Rojo, existing and moving across offshore coastal waters, moving west at 20 knots. Additional thunderstorms are expected to develop over the western coastal waters of Puerto Rico and the Mona Passage through the rest of the afternoon hours.
November 29, 2025 at 6:15 PM
sju.nws-bot.us
Marine Weather Statement issued November 28 at 3:03PM AST by NWS San Juan PR
Additional Details Here.
At 301 PM AST, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located just west of Aguadilla, moving northwest at 10 knots. Additional thunderstorms are expected to develop over the western coastal waters of Puerto Rico and the Mona Passage through the rest of the afternoon hours.
November 28, 2025 at 7:15 PM
sju.nws-bot.us
Flood Advisory issued November 28 at 2:36PM AST until November 28 at 4:30PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of Puerto Rico, including the following counties, Aguada, Anasco and Rincon. * WHEN...Until 430 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 235 PM AST, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood
November 28, 2025 at 6:45 PM
sju.nws-bot.us
Small Craft Advisory issued November 28 at 9:45AM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST today. * IMPACTS...Conditions will be hazardous to small craft.
November 28, 2025 at 2:00 PM
sju.nws-bot.us
Small Craft Advisory issued November 28 at 4:06AM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST today. * IMPACTS...Conditions will be hazardous to small craft.
November 28, 2025 at 8:15 AM
sju.nws-bot.us
Small Craft Advisory issued November 27 at 8:48PM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 8 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 28, 2025 at 1:00 AM
sju.nws-bot.us
Small Craft Advisory issued November 27 at 4:18PM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 8 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 8:30 PM
sju.nws-bot.us
Small Craft Advisory issued November 27 at 12:33PM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 6 to 8 ft expected. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 4:45 PM
sju.nws-bot.us
Small Craft Advisory issued November 27 at 4:34AM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 6 to 8 ft expected. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 20 kt with gusts up to 25 kt and seas 5 to 7 ft expected. * WHERE...Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix and Mona Passage Southward to 17N. * WHEN...Until noon AST today, Thursday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 8:45 AM
sju.nws-bot.us
Small Craft Advisory issued November 26 at 9:48PM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 6 to 8 ft expected. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...Until noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 20 kt with gusts up to 25 kt and seas 5 to 7 ft expected. * WHERE...Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix and Mona Passage Southward to 17N. * WHEN...Until noon AST Thursday. * IMPACTS...Conditions will be hazardous to small craft.
November 27, 2025 at 2:00 AM
sju.nws-bot.us
Flood Advisory issued November 26 at 5:05PM AST until November 26 at 6:15PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Cabo Rojo and San German. * WHEN...Until 615 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 505 PM AST, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2.5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding.
November 26, 2025 at 9:15 PM
sju.nws-bot.us
Flood Advisory issued November 26 at 4:22PM AST until November 26 at 5:15PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of Puerto Rico, including the following counties, Cabo Rojo and San German. * WHEN...Until 515 PM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 422 PM AST, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 1.5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding.
November 26, 2025 at 8:30 PM
sju.nws-bot.us
Small Craft Advisory issued November 26 at 3:36PM AST until November 27 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...East winds 15 to 20 kt with gusts up to 25 kt and seas 5 to 7 ft expected. * WHERE...Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix and Mona Passage Southward to 17N. * WHEN...From midnight tonight to noon AST Thursday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 5 to 7 ft expected. * WHERE...Anegada Passage east of Virgin Gorda and Saint Croix south to 17N. * WHEN...From midnight tonight to noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...Seas 6 to 7 ft expected, with occasional seas up to 9 feet and east winds 15 to 20 knots with gusts up to 25 knots. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...From midnight tonight to noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 7:45 PM
sju.nws-bot.us
Small Craft Advisory issued November 26 at 9:36AM AST until November 28 at 12:00PM AST by NWS San Juan PR
Additional Details Here.
* WHAT...Seas 6 to 7 ft expected, with occasional seas up to 9 feet and east winds 15 to 20 knots with gusts up to 25 knots. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...From midnight tonight to noon AST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 26, 2025 at 1:45 PM