Residual Rains and Extreme Heat: The “Day After” Ivo in BCS

According to the National Meteorological Service (SMN), skies will be mostly clear in the morning, followed by afternoon cloudiness and a chance of isolated rain

Falta de drenaje pluvial

Baja California Sur — Wednesday, August 13, 2025.Although Ivo weakened into a post-tropical low on Monday, August 11, its lingering effects —swells and humidity inflow— are still influencing Baja California Sur. These combine with the Mexican monsoon and upper-level instability to produce isolated showers, moderate winds with gusts, and intense heat across much of the state.

What to Expect Today

According to the National Meteorological Service (SMN), skies will be mostly clear in the morning, followed by afternoon cloudiness and a chance of isolated rain to occasional showers (0.1–25 mm), especially in mountainous areas such as Sierra La Laguna (Los Cabos), Sierra La Giganta (Loreto), and the San Miguel and Guadalupe ranges (Mulegé). Elsewhere, drizzle and occasional lightning are possible.

Winds are forecast to reach 30–40 km/h, with occasional dust storms in open areas of Baja California and Baja California Sur, particularly in the afternoon.

Ocean Conditions

Even with Ivo dissipated, long-period swells generated by the storm and regional pressure gradients will sustain dangerous surf and rip currents along exposed Pacific-facing beaches. The National Hurricane Center warned earlier this week of hazardous surf for southern BCS. While the storm’s center is gone, residual wave sets can persist, so swimmers and small craft operators should use extreme caution.

Heat: The Risk That Won’t Go Away

A heat wave remains in place, with maximums near 40°C in municipalities such as La Paz, Los Cabos, Comondú, Loreto, and Mulegé —and even higher heat indices on the coast. Authorities recommend frequent hydration, avoiding sun exposure between 11:00 a.m. and 4:00 p.m., and recognizing early signs of heatstroke (dizziness, flushed skin, confusion).

When and Where It Might Rain

• Afternoon–Evening (4:00–10:00 p.m.): Highest chance of convective storms over mountain zones and surrounding rural areas.

• Early Morning: Low clouds and coastal haze possible along Pacific stretches.

• Urban Areas: Brief downpours could cause minor flooding and reduce visibility in poorly drained streets.

Practical Safety Tips for Today

• Beach & Ocean: Observe flag warnings. Avoid entering the water if rip currents or high surf are present; small vessels should consult Port Authorities before departure.

• Roads: Watch for gusty winds and dust in open areas; slow down and keep headlights on if visibility drops.

• Health: Prioritize shade and hydration; pay special attention to children, seniors, and people with chronic illnesses.

• Stay Informed: Monitor SMN/Conagua and Civil Protection updates, as conditions can change quickly.

Why This Matters for BCS Residents

1. Personal & Tourist Safety – The combination of heat + dangerous surf increases the risk of accidents in beaches, trails, and outdoor activities, all vital to the local economy.

2. Mobility & Infrastructure – Sudden showers can affect key roadways and flood-prone neighborhoods; planning ahead prevents disruptions.

3. Economic Impact – Fishermen, guides, and tour operators rely on accurate weather windows; forecasts allow safe rescheduling.

4. Peak Hurricane Season – August is the height of Pacific cyclone activity; even without a direct storm threat, humidity and heat can trigger localized weather hazards.

   
   

In summary: The cyclone is gone, but its aftereffects remain —dangerous surf, gusty winds, and intense heat. Staying informed and taking simple precautions can make the difference between a safe day and an emergency.