Author: WeWorldMedia-admin

Hydrologic Outlook issued September 23 at 10:06AM AST by NWS San Juan PR

Published: 23 September 2025
Categories: National Weather Service

RSS feed source: US National Weather Service

ESFSJU A strong tropical wave, designated as Invest 94L by the National Hurricane Center, will approach the local islands as early as Tuesday night, enhancing the chances of flooding through at least late Thursday. The first round of showers will reach the Virgin Islands on Tuesday night and early Wednesday, with periods of moderate to heavy rain anticipated. The rain will then spread across Vieques, Culebra, and east and southeast Puerto Rico. This unsettled weather pattern is expected to linger into at least Thursday. So far, the heaviest activity should be focused along the vicinity of the Virgin Islands and the eastern third of Puerto Rico. The tropical wave appears to

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Popocatépetl Volcano Volcanic Ash Advisory: NEW VA EMS to 20000 ft (6100 m)

Published: 23 September 2025
Categories: Global Volcano Activity

RSS feed source: US National Weather Service

Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America’s 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian

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