Storm Showdown: Four Active Tropical Systems — Which Will Become Hurricane Amid a Shifting Atlantic La Niña?
Here’s our updated breakdown of the four active tropical systems as of July 30, 2025, along with forecasts influenced by current Atlantic climate conditions, including the emerging Atlantic Niña and lingering ENSO-neutral outlooks:
🌪 Hurricane Iona — Already at Category 1
Iona has already reached Category 1 hurricane strength in the Central Pacific. Sustained winds of 115–125 mph mark it as the season’s earliest major hurricane in that basin. Windy’s hurricane tracker shows it moving westward away from Hawaii, where models suggest gradual weakening over cooler waters and increasing wind shear.
Major Hurricane #Iona, and right behind it, Tropical Storm#Keli, glide westward across the open waters of the central Pacific Ocean, 600 miles south of Hawaii. pic.twitter.com/Dz79dmkgDY
Currently in the Western Pacific, Co‑May is a tropical storm with winds near 40–55 mph. Its path leads northeast over open water, and all guidance indicates steady weakening—unlikely to reach hurricane force.
Massive flooding caused by Tropical Storm Co-may in Ningbo, Zhejiang Province, China 🇨🇳 (30.07.2025) pic.twitter.com/NvSz86gZwr
Still a tropical depression east of the Pacific, 99E remains poorly organized with minimal convection. The Sea surface temperatures and wind shear levels currently suggest low potential for significant intensification.
Naming as Krosa is possible if 92L reaches tropical storm strength soon. It’s currently over warm Atlantic waters, tracking northwest. Windy-based model outputs and NOAA model guidance show a favorable window for gradual intensification—making it the best candidate among current depressions for becoming a named storm or possibly a hurricane if upper-level shearing stays low.
🌐 Climate Context: The Role of Atlantic Niña & ENSO-Neutral Conditions
Recent analysis from Severe Weather Europe documents the development of a rare Atlantic Niña, characterized by cooler-than-normal sea surface anomalies in the eastern equatorial Atlantic. These conditions can reduce African easterly wave activity and weaken early-season hurricane genesis near Cape Verde — potentially limiting storm development in the deep tropics.
Meanwhile, the Pacific’s ENSO status remains neutral, with no dominant El Niño or La Niña. Neutral conditions combined with unusually warm Atlantic waters—especially across the Caribbean and Gulf of Mexico—suggest an above-average hurricane season is still likely, even without a full La Niña .
Seasonal forecasts from NOAA and Colorado State University converge on a moderately busy season: 13–19 named storms, 6–10 hurricanes, and 3–5 major hurricanes.
📍 System Comparison: Forecasted Intensification
System
Current Status
Likelihood of Intensification
Iona
Category 1 Hurricane
Weakening expected, already peaked
Co‑May
Tropical Storm (W Pacific)
Unlikely to intensify further
99E
Tropical Depression
Low development potential
92L “Krosa”
Tropical Depression (Atlantic)
Best chance to become a storm, possible hurricane if shear stays low
🔁 Look Back: July 2024 vs. July 2025
In July 2024, tropical activity was mild: only one named storm (Danielle) formed in late Atlantic season, and no hurricanes developed in July. By contrast, July 2025 boasts multiple active disturbances, including one confirmed hurricane (Iona) and several systems with intensification potential, pointing toward a more dynamic mid-season phase.
While Iona is already a hurricane and expected to weaken, 92L (future Krosa) poses the greatest threat of strengthening in the Atlantic. Despite signs of a weak Atlantic Niña—which may suppress some Cape Verde development—ENSO-neutral conditions and very warm Atlantic waters support the outlook for a busy hurricane season, especially into September and beyond.
Keep monitoring live Storm Tracker on Windy, backed by official updates from the National Hurricane Center (NHC) and the Climate Prediction Center (NOAA), for the latest on track shifts and intensity changes.
The Founder and Chief Meteorologist at Pogodnik.com. With over 15 years of operational experience in synoptic analysis and climate forecasting, he specializes in storm tracking, magnetic storms, and atmospheric dynamics. A recognized expert in Ukraine’s meteorological sector, he maintains strategic collaborations with global agencies, including NOAA and ECMWF, to ensure high-precision data integration. His analytical reviews and scientific contributions are regularly featured in leading media outlets dedicated to weather science and environmental trends.
