Breaking down what a 30% chance of rain means for your plans

The global tropics are bustling as intense summer sunshine warms the Pacific and Atlantic basins to some of their warmest waters of the year. Conditions across the Atlantic remain exceptionally quiet as a strengthening El Niño takes its toll on the region’s environment. Meanwhile, a steamy Pacific Ocean is practically printing one storm after another. DON’T MISS: Trouble may lurk beyond hurricane season’s very quiet startPacific Ocean is bustling with activityThe Pacific Ocean is staying busy this year thanks to generally favourable conditions and very warm sea surface temperatures, influenced by the presence of a growing El Niño. Four of the five tropical cyclones that have reached Category 5 strength around the world so far this year formed over steamy Pacific waters, including Sinlaku, Bavi, Dolphin, and Genevieve. The basin shows no signs of slowing down. Forecasters spent the weekend tracking 10 different areas of interest, including named storms and disturbances, throughout tropical sections of the Pacific Ocean. This basin is staying busy thanks to generally favourable conditions and very warm sea surface temperatures.

A meteor streaks across the sky over a desert in China during the Orionid meteor shower on Oct. 22, 2023.(VCG/VCG via Getty Images)The Orionid meteor shower is peaking this week, and it promises to be one of the most dazzling displays of the year. And while some of you will have clear skies, rain and clouds could impact the view for others. Here's what you need to know about the Orionids and your forecast:Fast factsPeak day: The meteor shower peaks Wednesday night, Oct. 21, into the early hours of Thursday morning, Oct. 22. Peak time: From midnight to dawn are the best hours to catch the meteors streaking through the sky, so plan on a late night or really early morning. What the Orionids are known for: The Orionid meteors are known for their brightness and their speed. As they streak across the sky at around 41 miles per second, the meteors leave behind a glowing "train" that can last several seconds to minutes. While you can make the perfect plan to catch the Orionids, the key to stellar viewing is still in Mother Nature's hands. The good news is that many of you should have good meteor shower-watching conditions. Much of the central and eastern U. S.

(urbanbuzz/shutterstock)Could a cheap roll of duct tape help protect your home from flooding? New research suggests it could make a surprisingly big difference. In controlled tests, correctly applied duct tape on the outside of a household door reduced water leakage by 97-98%. The findings suggest that a simple low-cost measure could substantially reduce the amount of water entering a home during a flood. This is important as one of the key lessons from flood resilience research is that the best time to protect a property is before floodwater arrives. The UK government’s 2025 FloodReady Review called for practical, affordable measures that help households understand their risks and to prepare for flooding. And one potential contribution to this agenda might sound unlikely, at first glance. Duct tape is more commonly associated with household repairs than flood protection. However, tests colleagues and I conducted at the University of Hull demonstrated how much water can enter a property through an unprotected doorway during a flood. Three doors, ready for flood-testing.

Hurricane Trudy will bring flood threat to the Southwest USTrudy is off the Mexican coast, however, its moisture will pour into the Southwestern U. S., helping fuel a multiday flood risk across seven states this week from California to Colorado. A dip in the jet stream will also funnel in moisture from the Pacific as a strong low pressure system moves into the region. Timing out this week’s rainfallWednesday: The highest risk of flooding on Wednesday covers much of Arizona and parts of New Mexico, as well as southern portions of Colorado and Utah. There will be an abundance of moisture available to support heavy downpours and training storms. This means storms will produce heavy rain over the same areas for long periods of time. The Weather Prediction Center is forecasting rainfall rates as high as 2 inches per hour. Some of the biggest concern will be the possibility of mudslides over recent burn scar areas as well as slow canyons and arroyos. If you have plans to visit any of the national parks in the West this week, make sure you check the forecast daily and pay attention to any warnings or advisories issued.