All articles tagged with #flash flooding
Houston is bracing for more heavy rain and thunderstorms from Saturday evening through Memorial Day, with a continued Stage 2 flood alert due to high atmospheric moisture and the potential for storm training. Rain totals so far have varied widely, and forecasters expect roughly 2–4 more inches across the area next week, with isolated higher amounts and a real risk of flash flooding in repeatedly affected areas.
Gov. Greg Abbott activated state emergency resources as a large storm system threatens most of Texas through Monday with 75 mph winds, large hail, and possible tornadoes, plus heavy rainfall that could trigger flash flooding (3–6 inches widely, isolated totals up to 10 inches). State assets—including swiftwater boats, urban search-and-rescue teams, helicopters, debris-clearing crews, and utility monitors—have been mobilized to aid local officials, with residents urged to monitor forecasts and avoid flooded roads as the system shifts toward the South and Southeast Texas coasts.
A weekend storm outbreak threatens tornadoes, damaging winds, and flash floods for about 38 million people from North Texas to Michigan, with the highest tornado risk in the Upper Mississippi Valley (Iowa, Wisconsin, northern Illinois); 12 million in the Ohio Valley/eastern Great Lakes face severe thunderstorms, and rainfall could reach 1–2 inches per hour, fueling flash flooding. Missouri declared a state of emergency as authorities brace for winds over 80 mph and heavy rain, while much of the eastern-central U.S. experiences heat ahead of a cold front that will bring cooler air later.
Oahu’s Waialua and Haleiwa communities were ordered to evacuate due to an imminent risk of Wahiawa Dam failure and dangerous flash flooding, with shelters opened and transportation disrupted as residents move to higher ground.
A powerful Kona storm drenched Hawaii with heavy rain, flash floods, landslides and summit snow, washing out roads and destroying a home, while more than 35,000 customers lost power and flood watches and wind advisories remained in effect across Maui, Molokai and the Big Island.
A line of severe thunderstorms is moving from the South through the Ohio Valley into the mid-Atlantic, spawning tornadoes, giant hail, and damaging winds with hundreds of reports. On Wednesday, additional tornadoes and damaging winds are possible across the South, Midwest and East, along with 1–3 inches of rain that could trigger flash flooding; multiple watches are in effect and safety guidance is being shared. Yesterday’s outbreaks included EF1 tornadoes in Illinois and Indiana and large hail across several states.
A severe weather threat including tornadoes and flash flooding is ongoing in the Deep South, with active storms and potential for damaging winds, large hail, and additional heavy rain, affecting areas from Mississippi to South Carolina, while the Northeast experiences rain and snow.
Heavy rain and flash flooding in northern California caused water rescues and at least one death, with significant rainfall in Redding and other areas, driven by atmospheric rivers bringing moisture from the tropics.
A new 24-hour precipitation record of 14.55 inches was confirmed in Wisconsin after severe thunderstorms caused widespread flash flooding, surpassing the previous record of 11.72 inches set in 1946, with the event primarily affecting Milwaukee on August 9-10, 2025.
Tropical Storm Jerry is bringing heavy rain and the threat of flash flooding to the Leeward Islands as it moves away into the Atlantic, with no current threat to the U.S. mainland, and a new tropical wave may develop in the Atlantic but pose no threat to the Caribbean.
Over 25 million people in the Northeast, including major cities like Philadelphia and New York City, are under alert for severe weather and flash flooding due to strong thunderstorms associated with a cold front, with the highest risk from Philadelphia to Bridgeport, Connecticut, expected from Saturday afternoon into the overnight.
A final storm system is bringing heavy rain and flash flood risks to Minnesota, especially the southern regions and Twin Cities, with potential for life-threatening flooding, road closures, and a challenging morning commute due to ongoing storms and saturated ground.
Minnesota faces ongoing flash flooding threats as additional storms are expected to bring heavy rain and strong winds, especially impacting areas already saturated from previous storms, including the Twin Cities and central Minnesota, with potential for significant rainfall through Monday.
Milwaukee experienced historic flash flooding due to over 5.7 inches of rain, causing road closures, water rescues, and the early closure of the Wisconsin State Fair, with more rain expected and ongoing flood risks.
Heavy thunderstorms and record rainfall caused severe flash flooding in Milwaukee and the Midwest, leading to water rescues, event cancellations, and infrastructure damage, with ongoing flood warnings and potential for further rain.