A weak high pressure is ridding over the region from a high pressure just west of the Canary Islands maintained light and variable winds. This promoted seas of 3 to 4 feet, occasionally higher over the Atlantic waters of Puerto Rico.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SJU wrote it up.
A weak high pressure is ridding over the region from a high pressure just west of the Canary Islands maintained light and variable winds. This promoted seas of 3 to 4 feet, occasionally higher over the Atlantic waters of Puerto Rico. There was a moderate risk of rip currents in effect for the northern beaches of Puerto Rico, including Isabela. One rip current related drowning occurred in Jobos Beach.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Juan, PR wrote its last area forecast discussion before the first event at Sep 25, 5:38 AM AST, 7 hours 43 minutes earlier.
Area Forecast Discussion
National Weather Service San Juan PR
538 AM AST Wed Sep 25 2024
.SYNOPSIS...Increased instability and very warm to hot
temperatures with high relative humidity will bring energetic
showers and thunderstorms to the area today with frequent
lightning as well. On Thursday and Thursday night stability will
increase and this activity will be reduced, but a tropical wave
will move through on Friday and Friday night. Moisture will still
be abundant over the weekend and Monday and Tuesday, but less
shower activity will occur then.
&&
.SHORT TERM...Today through Friday...
Overnight, some showers developed over Saint Croix and the eastern
municipalities of Puerto Rico (Humacao, Naguabo, Fajardo, and
Luquillo), as well as the island of Vieques. The rest of the islands
experienced fair weather conditions. Like previous days,
lightning activity lit the sky, particularly along the eastern,
northern, and southern coastal areas of Puerto Rico and the U.S.
Virgin Islands, as some showers and isolated to scattered
thunderstorms developed over the Atlantic and Caribbean waters as
well as the Anegada Passage. Tonight, the low temperatures
remained in the upper 60s to lower 70s in the mountains and in the
upper 70s to lower 80s in the urban/coastal areas. At the Luis
Munoz Marin International Airport, the minimum temperature stayed
at 82 degrees Fahrenheit as of 5 AM AST which will be a record
warm minimum if we can keep it through sunrise. The winds were
relatively light and variable across Puerto Rico and the U.S.
Virgin Islands.
Today, the citizens and visitors of Puerto Rico should experience
mostly fair weather through the morning hours, with some trade wind
showers filtering in from the east, particularly across the
eastern municipalities of Puerto Rico and the U.S. Virgin Islands.
However, these showers should move quickly as the winds are
slightly stronger, around 10 to 15 knots today. Each afternoon,
we anticipate the development of shower and thunderstorm activity
across the interior and western sections of Puerto Rico. In fact,
the latest guidance shows that 500 mb temperatures will be around
minus 8 degrees Celsius, meaning that there is an increased
potential for more thunderstorm development, strong wind gusts,
small hail and locally heavy rainfall that would likely cause
urban and small stream flooding and possibly flash flooding.
By late Thursday into Friday, moisture associated with a tropical
wave that will move mostly south of the islands will reach Puerto
Rico and the U.S. Virgin Islands. The latest precipitable water
(PW) models suggest values gradually increasing from the 50th
percentile (around normal PW content) to the 75th percentile
(above normal PW content). This tropical wave will increase the
potential for rainfall and thunderstorm activity across the
islands through the weekend. Some impacts associated with both this
and today's rainfall will be mudslides in steep terrains,
flooding over roads, and poorly drained areas.
Temperatures will be in the upper 70s to lower 80s over the higher
terrain, and the upper 80s to lower 90s will persist across the
lower elevations of the islands during the morning and early
afternoon hours. Therefore, excessive heat conditions can be
anticipated throughout the short-term period. Advisories and
warnings for heat have been issued again today.
.LONG TERM...Friday through Tuesday...
A tropical wave will begin pushing against a weak high pressure
north of the area around 30 north and the flow behind the wave
will turn briefly east southeast after it passes. However, high
pressure at 700 mb over the Bahama Islands and a tropical cyclone
developing between 40 and 50 west and moving north through 20
north will bring flow at lower levels back to the east northeast
by Saturday morning. On Sunday a tropical wave approaches the area
but it is highly tilted and not very strong, making flow chaotic
and generally less than 12 knots Monday and Tuesday.
At upper levels on Friday high pressure is building over the
waters north of the western Bahama Islands and allowing a jet to
strengthen to 60 knots at 250 mb northwest of Puerto Rico and the
area in general. This will increase divergence over the area on
Friday enhancing activity with the wave passage. A TUTT low near
19 north and 58 west will drop rapidly southwest to tighten the
gradient even more across the area Saturday and Saturday night
adding to the ventilation across the area. High pressure at mid
levels to the north during the period will keep temperatures at
500 mb relatively high (warmer than -4 degrees C) and so
convection will not reach its full potential. Precipitable water
will be mostly below 2 inches Sunday through Tuesday with some
drying in the lower levels as well.
&&
.AVIATION...
(06Z)
VFR conditions at all Taf sites. TJSJ, TJPS, and TJBQ will
experience brief MVFR conds, particularly after 25/18Z. Winds less
than 15 kt with a few higher gusts along the coasts and near TSRA
till 25/23Z. TSRA will still be found offshore and near TJSJ, TIST,
and TISX aft 25/22Z.
&&
.MARINE...Seas will be generally benign, but the passing tropical
wave with increasing winds and a north northeast swell that will
pass through the area Friday and Saturday will cause seas to reach
4.5 to 5.5 feet then. Nevertheless, small craft advisory
conditions are not expected through the first few days of October.
&&
.BEACH FORECAST...
There will be a moderate risk of rip currents along the northern
side of the islands beginning today and continuing through
Tuesday. The risk may become high on the northwest corner of
Puerto Rico on Friday.
&&
.SJU WATCHES/WARNINGS/ADVISORIES...
PR...Heat Advisory until 5 PM AST this afternoon for PRZ001>004-012-
013.
Excessive Heat Warning until 5 PM AST this afternoon for PRZ005-
007-008-010-011.
VI...Heat Advisory until 5 PM AST this afternoon for VIZ001.
Excessive Heat Warning until 5 PM AST this afternoon for VIZ002.
AM...None.
&&
SHORT TERM/AVIATION...MMC
LONG TERM/MARINE....WSPerspectiva sobre las Condiciones Peligrosas del Tiempo Servicio Nacional de Meteorología San Juan PR 502 AM AST miércoles 25 de septiembre de 2024 AMZ711>745-PRZ001>013-260915- San Juan y Vecindad-Noreste-Sureste-Este Interior- Norte Central-Central Interior-Ponce y Vecindad-Noroeste- Oeste Interior-Mayagüez y Vecindad-Suroeste-Culebra-Vieques- Las aguas cercanas y fuera de la costa del Atlántico y del Caribe- 502 AM AST miércoles 25 de septiembre de 2024 Esta perspectiva sobre las condiciones peligrosas del tiempo es para sectores de Puerto Rico. .DÍA UNO...Hoy y esta noche .Rayos...Tormentas eléctricas aisladas a dispersas posibles sobre las aguas y Puerto Rico en la tarde. Esté atento a las tormentas eléctricas en su área y esté preparado para buscar refugio. .Lluvia Excesiva...Inundaciones en áreas urbanas, carreteras, riachuelos y lavados. Inundaciones repentinas aisladas posibles. .Calor Excesivo...Este nivel de calor afecta a cualquier persona sin enfriamiento efectivo y/o hidratación adecuada. Impactos probables en algunos sistemas de salud, industrias sensibles al calor e infraestructura. .Corrientes Marinas...Las corrientes marinas amenazantes a la vida son posibles en la zona de olas particularmente a lo largo del oeste, norte y este de PR, Vieques y Culebra. .DÍAS DOS A SIETE...jueves a martes El calor excesivo continuará cada día en las elevaciones más bajas de Puerto Rico. El riesgo moderado de corrientes marinas permanecerá hasta el jueves a través de la costa del norte, este y oeste de PR, Vieques y Culebra. Un riesgo alto de corrientes marinas el viernes a lo largo de las playas del norte central y noroeste de PR. Las tormentas eléctricas de aisladas a dispersas aparecerán cada tarde principalmente en lugares del oeste e interior. Una onda tropical alcanzará las islas tarde el jueves hasta el viernes. Sin embargo, la humedad asociada con ella permanecerá a través de las islas hasta el fin de semana. .COMUNICADO SOBRE INFORMACIÓN DE OBSERVADORES... Se les exhorta a los observadores a reportar. Favor de reportar cualquier información sobre inundaciones, vientos, olas y corrientes marinas al Servicio Nacional de Meteorología en San Juan. AMZ716-726-VIZ001-002-260915- San Thomas San John e islas adyacentes-Santa Cruz- Aguas cercanas a la costa del Atlántico y aguas costeras adyacentes del Caribe- 502 AM AST miércoles 25 de septiembre de 2024 Esta Perspectiva sobre las Condiciones Peligrosas del Tiempo es para sectores de las Islas Vírgenes Americanas. .DÍA UNO...Hoy y esta noche .Rayos...Tormentas eléctricas aisladas a dispersas posibles a través de las Islas Vírgenes Estadounidenses. Esté atento a las tormentas eléctricas en su área y esté preparado para buscar refugio. .Calor Excesivo...Este nivel de calor afecta a cualquier persona sin enfriamiento efectivo y/o hidratación adecuada. Impactos probables en algunos sistemas de salud, industrias sensibles al calor e infraestructura. .Corrientes Marinas...Las corrientes marinas amenazantes a la vida son posibles en la zona de olas particularmente de San Thomas, San John y Santa Cruz. .DÍAS DOS A SIETE...jueves a martes El calor excesivo continuará cada día en Santa Cruz. El riesgo moderado de corrientes marinas permanecerá hasta la próxima semana a través de las Islas Vírgenes Estadounidenses. Las tormentas eléctricas de aisladas a dispersas aparecerán cada tarde hasta el sábado. Una onda tropical alcanzará las islas tarde el jueves hasta el viernes. Sin embargo, la humedad asociada con ella permanecerá a través de las islas hasta el fin de semana. .COMUNICADO SOBRE INFORMACIÓN DE OBSERVADORES... Se les exhorta a los observadores a reportar. Favor de reportar cualquier información sobre inundaciones, vientos, olas y corrientes marinas al Servicio Nacional de Meteorología en San Juan.
1 rip current. Local standard time, as filed.
A newspaper reported that a 59-year-old tourist was spending time with his 9-year-old son and 12-year-old daughter at Jobos Beach when they were swept away by rip currents. Two surfers at the beach rescued the children and then returned to retrieve the father, whom they brought to shore, but he had no vital signs upon arrival.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Rip Current, Northwest | 2024-09-25 | 59 | Male | In Water | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2024Every state in 2024This day in weather historyWarnings in Puerto Rico, September 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1216696.