Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

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Last Map Update: Wed, Sep 3, 2025 at 6:54:15 am AST

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☀️ For today, another day with heat indices ranging between 105°F and 111°F are expected across coastal and urban areas of Puerto Rico and the U.S. Virgin Islands, with the peak heat risk from 10 AM to 5 PM. As a result, there is a Heat Advisory in effect from 10 AM to 5 PM AST along the coastal and urban areas. Residents and visitors are advised to stay hydrated 💧, reduce outdoor activities, wear light clothing, and not forget their pets. ☀️ Para hoy, se espera otro día con índices de calor entre 105°F y 111°F a través de las áreas costeras y urbanas de Puerto Rico y las Islas Vírgenes de los Estados Unidos, con el periodo de mayor riesgo entre las 10 AM y las 5 PM. Como resultado, hay una advertencia de calor en efecto de 10 AM a 5 PM AST para las zonas costeras y urbanas. Se recomienda a los residentes y visitantes mantenerse hidratados 💧, reducir las actividades al aire libre, usar ropa ligera y no olvidar a sus mascotas. #prwx #usviwx

[8 AM AST · Sep 2] Tropical Weather Outlook The National Hurricane Center (NHC) continues monitoring a tropical wave over the Atlantic with a low formation chance in 48 hours (30%) and a high formation chance in 7 days (70%). A tropical depression is likely to form later this week or weekend. For more information, visit hurricanes.gov. [8 AM AST · 2 de septiembre] Perspectiva del Tiempo Tropical El Centro Nacional de Huracanes (NHC) continúa monitoreando una onda tropical sobre el Atlántico con una baja probabilidad de formación en 48 horas (30 %) y una alta probabilidad de formación en 7 días (70 %). Es probable que se forme una depresión tropical a finales de esta semana o durante el fin de semana. Para obtener más información, visite hurricanes.gov. #PRwx #USVIwx weather.gov/sju

Beach conditions will remain favorable with a low risk of rip currents across all coastal areas. Even with the low risk, visitors should stay cautious of other hazards, including lightning near the shore. Las condiciones en las playas se mantendrán favorables con un riesgo bajo de corrientes marinas en todas las zonas costeras. Aun con el riesgo bajo, los visitantes deben ser precavidos ante otras amenazas, como la presencia de rayos cerca de la orilla. #prwx #usviwx