Tropical Storms Boris and Cristina formed off of southern Mexico’s Pacific coast on Monday, according to the National Hurricane Center, becoming the second and third named storms of the 2026 Pacific hurricane season.
Heavy rainfall from both systems is expected to impact parts of southern Mexico and could produce life-threatening flooding and mudslides, forecasters said.
According to the hurricane center, the center of Boris should reach the coast of Guerrero, Mexico, with little change in strength forecast until landfall.
Tropical Storm Cristina formed about 100 miles west-southwest of the coast of Managua, Nicaragua. The government of Honduras has issued a tropical storm warning for Puerto Sandino to the Guatemala/El Salvador border.
Where is Tropical Storm Boris, and what is its path?
As of 1 p.m. ET on Monday:
Boris was located about 80 miles south-southwest of Punta Maldonado, Mexico.
The storm has maximum sustained winds of 45 mph.
It is moving east-northeast at 3 mph.
“A turn toward the north is expected later today followed by a turn to the northwest on Tuesday,” the NHC said. “Rapid weakening will occur after the center crosses the coast of southern Mexico.”
Watches and warnings in effect
Tropical storm warning:
Laguna de Chacahua to Tecpán de Galeana
This means that tropical storm conditions are expected within the warning area within 12 to 24 hours.
What are the storm’s expected impacts on land?
Boris is expected to produce 4 to 8 inches of rain, with maximum totals possibly reaching 12 inches across the Mexican coastal states of Guerrero and Oaxaca through Tuesday. Life-threatening flooding and mudslides are possible, especially in areas with steep terrain.
Where is Cristina, and what is its path?
As of 1 p.m. ET on Monday:
Cristina was located about 100 miles west-southwest of Managua, Nicaragua.
The storm has maximum sustained winds of 45 mph.
It is moving north at 5 mph.
“Aa turn toward the northwest is expected this evening or Tuesday morning,” the NHC said. And the system “should parallel the coast through Thursday.”
Watches and warnings in effect
Tropical storm warning:
Puerto Sandino to the Guatemala/El Salvador border
This means that tropical storm conditions are expected within the warning area within 12 to 24 hours.
What are the storm’s expected impacts on land?
Cristina is expected to produce 4 to 8 inches of rain, with maximum totals possibly reaching 12 inches across coastal portions of Nicaragua, Honduras, El Salvador and Guatemala through Thursday morning. Life-threatening flooding and mudslides are possible, especially in areas with steep terrain.
How is the 2026 Pacific hurricane season shaping up?
The National Oceanic and Atmospheric Administration says there’s a 70% chance of above-normal activity in the Pacific this hurricane season. It’s expected to be busier than normal compared to the Atlantic basin due to the effects of El Niño, which is expected to cause an increase in rising air over the tropical Pacific and sinking air over the tropical Atlantic.
For the eastern Pacific, the federal weather agency is expecting 15 to 22 named storms, including nine to 14 hurricanes and five to nine major hurricanes. In the central Pacific, the NOAA is expecting five to 13 tropical cyclones.
Tropical Storm Amanda was the first named storm of the Pacific hurricane season, and it formed on June 3 far out at sea and dissipated without making landfall.
