Message 28239 in STORM.WW
From: HP2DFA
Date: Tue, 18 Aug 26 23:19:00 Z
Newsgroups: STORM.WW
Subject: TROPICAL OUTLOOK CENTAL AMERICA AUG18
Message-ID: <549_HP2DFA>
Path: N2MH4|VE3KPG|VE3CGR|VA2RIZ|HP2DFA
R:260819/0002Z 35656@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260819/0001Z 28997@VE3KPG.#ECON.ON.CAN.NOAM BPQ6.0.25
R:260819/0000Z 91332@VE3CGR.#SCON.ON.CAN.NOAM LinBPQ6.0.25
R:260819/0000Z 5596@VA2RIZ.#LAN.QC.CAN.NOAM LinBPQ6.0.25
R:260818/2319Z 549@HP2DFA.#COL.PAN.CEAM BPQ6.0.24
Central America Tropical Outlook
Valid: Wednesday, August 19, 2026
There are no active hurricanes or tropical storms threatening Central America tomorrow.
However, the region remains highly vulnerable to a stark dual weather pattern: standard
Tropical Wave activity is triggering severe flood warnings in the south, while El
Niño-induced drought continues to cause extreme heat alerts in the north.
Major Tropical Systems & Disturbances Under MonitorTropical Wave No. 35 (Active):
This wave is actively cutting across the southern half of the istmo tomorrow. Its
interaction with the Intertropical Convergence Zone (ITCZ) and a broad regional
low-pressure system is driving heavy tropical downpours, strong lightning, and
localized wind gusts.
The Caribbean Low-Pressure Gyre: Broad atmospheric instability over the southwestern
Caribbean Sea continues to pump a continuous flow of deep moisture and accelerated
trade winds directly into the Atlantic coastlines of Panama, Costa Rica, and Nicaragua.
Regional Risk & Impact Breakdown
NORTHERN REGION (GT, SV, HN) SOUTHERN REGION (CR, PA)
---------------------------------- ----------------------------------
| • Extreme Heat (Up to 42°C) | | • Severe Flash Flood Warnings |
| • Active Meteorological Drought | | • Soil Saturation up to 100Y |
| • Isolated Late-Afternoon Storms| | • Hazardous Sea Advisories |
---------------------------------- ----------------------------------
1. Southern Region: Panama & Costa Rica (High Flood & Mudslide Risk)
Panama: The National Civil Protection Service (SINAPROC) has issued a countrywide
Prevención Notice for Heavy Rainfall and Significant Thunderstorms valid through
tomorrow afternoon. Extreme caution is urged for the Western and Caribbean provinces
(Bocas del Toro, Ngäbe-Buglé, Chiriquí, Veraguas, Colón, and Guna Yala), where soils
are saturated above 65risking flash floods and swollen rivers.
Costa Rica: The National Meteorological Institute (IMN) warns of extreme soil
Any additional afternoon rainfall will immediately trigger river overflows
(e.g., Sixaola and Sarapiquí) and landslides across mountain highways.
2. Northern Region: El Salvador, Guatemala & Honduras (Heatwaves & Drought)
El Salvador: The Ministry of Environment (MARN) maintains a strict watch on the
country's third meteorological drought period of the year. An intense El Niño-driven
heatwave will peak tomorrow, pushing temperatures between 38°C and 42°C in eastern
and paracentral zones.
to a prolonged canícula (mid-summer drought). While mornings will be dangerously hot
and dry, extreme solar radiation will trigger isolated, brief, but highly severe
convective storms late in the evening along the volcanic chain, capable of producing
destructive 80 km/h microburst winds.
Marine and Coastal ConditionsA Hazardous Sea Advisory remains active across the
entire Central American Caribbean coastline tomorrow. Accelerated trade winds are
generating rough seas with wave heights ranging from 1.5 to 3.1 meters (5 to 10 feet),
coupled with dangerous rip currents. Navigation for small fishing vessels, artisanal
boats, and recreational watercraft is highly restricted.
Sistema de Monitoreo de Alertas Meteorologicas de Panama
PCARA - Grupo Digital C4FM Panama
www.pcara.net - www.c4fmpanama.org
HP2DFA@HP2DFA.COL.PA.CEAM
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