Tropical Cyclone Juliette: 10 urgent alerts issued by the National Meteorological Service (SMN) in Mexico

Cyclone Juliette could become the next major weather phenomenon in the Pacific. The National Meteorological Service (SMN) reported that a low-pressure zone off Michoacán, Colima, and Jalisco has a 50% chance of developing in the next seven days.

This scenario combines with tropical wave number 24 and the Mexican monsoon , which intensifies rainfall, lightning, and flood risks in different regions of the country.

1. What is Tropical Cyclone Juliette and why is it a concern?

If confirmed, Juliette will be the next named cyclone of the 2025 season in the Mexican Pacific. A tropical cyclone is characterized by torrential rains, thunderstorms, and winds that, in advanced stages, can exceed 100 km/h.

2. How the probability of cyclone formation is measured

The National Meteorological Service (SMN) uses prediction models that combine satellite imagery, sea temperature, humidity, and wind patterns. A 50% probability means the models predict favorable conditions in half of the simulated scenarios.

Factors such as ocean heat and atmospheric circulation are key. If water temperatures remain high, low pressure can quickly transform into a cyclone.

3. Where the cyclonic system could form

The low pressure zone off the coasts of Michoacán, Colima, and Jalisco is the critical point. The National Meteorological Service (SMN) is maintaining constant surveillance and assigns a moderate probability of storm formation.

4. States that will experience heavy rains

Although Tropical Cyclone Juliette has not yet consolidated, the instability system is already having effects:

• West (Jalisco, Colima, Michoacán): storms with lightning and hail.

• Center (CDMX, State of Mexico, Puebla, Tlaxcala and Morelos): very heavy rains at night and early morning.

• South (Guerrero, Oaxaca, Veracruz): risk of torrential rains and landslides.

5. How tropical wave 24 and the Mexican monsoon influence

The picture is complicated by two additional phenomena:

• wave 24 is moving westward, bringing cloudy skies and heavy rain.

• The Mexican monsoon is causing storms in Sinaloa, Nayarit, Sonora, Chihuahua, and Durango.

Both systems increase the possibility of the low pressure off the Pacific gaining strength.

6. 7 shocking facts about Tropical Cyclone Juliette

1. It has a 50% chance of becoming a cyclone.

2. It is located in front of Michoacán, Colima and Jalisco .

3. It coincides with tropical wave 24 , which is already causing intense rains.

4. The Mexican monsoon brings moisture and storms to the northwest.

5. There is a risk of hail and lightning in the west.

6. It could indirectly affect Mexico City .

7. It occurs in an extremely hot environment : more than 45 °C in Baja California and Sonora.

7. Main risks: floods, landslides and extreme heat

The development of Tropical Cyclone Juliette may intensify recurring problems:

• Urban flooding and puddles.

• Landslides in mountainous regions of Oaxaca, Veracruz and Guerrero.

• Power outages and roadblocks due to fallen trees.

• Parallel heat wave , with temperatures above 45°C in the north of the country.

8. Historical background of tropical cyclone Juliette in Mexico

It wouldn't be the first time a system has been named this. In 2001, Hurricane Juliette reached Category 4 status and brought heavy rains to Baja California Sur. In 2019, another storm of the same name remained offshore, without making landfall, but generated high waves in the central Pacific.

These facts show that Juliette can range from a dangerous system to a low-impact cyclone. The key is constant monitoring.

9. Recommendations of the SMN and Conagua

Authorities urge the public to stay informed:

• Check official reports every 6 hours.

• Do not spread rumors or unverified information.

• Have temporary shelters and evacuation routes on hand.

• Avoid crossing rivers or streams during rain.

• Prepare basic supplies, drinking water, and flashlights in case of power outages.

10. Final reflection

Although Tropical Cyclone Juliette has not yet formed, the combination of atmospheric systems keeps Mexico at risk of heavy rains, thunderstorms, and extreme heat.

Prevention is key: stay informed, take precautions, and don't minimize the force of nature.

👉 And you, do you think your community is prepared to face a phenomenon like Cyclone Juliette?