Rain and Flooding Threats Span Nepal, U.S.

Connecticut’s unsettled pattern may continue through much of next week, with a possible nor’easter-type system bringing rain and gusty winds by Friday; its track and strength remain uncertain.
In Connecticut, temperatures are expected to stay mainly in the 60s next week—about 10 degrees below normal for some shoreline locations—and autumn officially begins Tuesday evening at 8:05 p.m.
Eastern Iowa may get a brief break from rain Wednesday through Thursday before another system brings the next chance of showers Friday into Friday night; overnight lows could fall into the 40s if skies clear Tuesday night.
The National Weather Service says South Florida’s east-coast metropolitan areas face particular flood risk because of high rainfall rates and slow-moving storms; Miami, Fort Lauderdale and West Palm Beach each have a 90% precipitation probability forecast for noon and 6 p.m. Sunday.
The National Weather Service expects stronger South Florida thunderstorms on Saturday to bring frequent lightning and gusty winds in addition to heavy downpours, with the highest rain chances during the afternoon and early evening.
Heavy rain and flooding threats are spreading across Nepal and multiple U.S. regions this week. Nepal faces extreme rainfall from September 24 to 28 as a Bay of Bengal system combines with westerly winds, threatening central and western areas. Meanwhile, the U.S. Northeast, South Florida, and Iowa are bracing for repeated storms, with National Weather Service warning of localized street flooding and travel disruptions.
Nepal's Sudurpaschim and central regions face their biggest rain threat of the week starting September 24. A developing Bay of Bengal system will collide with westerly winds, potentially triggering extreme rainfall. The combination could dump several inches across vulnerable mountain terrain. The five-day window through September 28 poses significant flash-flood and landslide risks in steep terrain.
South Florida's major cities are in the path of slow-moving storms that could linger through the weekend and into the following week. National Weather Service forecasters say Miami, Fort Lauderdale, and West Palm Beach each face a 90% precipitation probability Sunday at noon and 6 p.m. Heavy rain, frequent lightning, and gusty winds will bring localized street flooding to coastal areas.
Saturday's thunderstorms are expected to be strongest, with the highest rain chances during the afternoon and early evening hours. Gusty winds and frequent lightning will accompany heavy downpours across the region.
Connecticut is transitioning into fall with a damp, chilly pattern that could last most of next week. The state is expected to receive 0.5 to 1 inch of rain, with locally higher totals possible. Temperatures will stay mainly in the 60s — about 10 degrees below normal for shoreline locations. A possible nor'easter-type system by Friday could bring additional rain and gusty winds, though its exact track and strength remain uncertain.
Eastern Iowa remains under a Flood Watch as strong thunderstorms with heavy rain continue to threaten the region. The area may get a brief break from rain Wednesday through Thursday before another system brings showers Friday into Friday night. Overnight lows could drop into the 40s if Tuesday night skies clear. Additional scattered showers and rain systems are expected as the week progresses.
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