Democracy & Rule of Law · Report · File No. 261103-027
Storms and flooding force polling-place changes on Election Day
Severe thunderstorms, flash flooding and tornado threats are disrupting in-person voting from Florida to Oklahoma, and researchers say heavy rain can shave a point or two off turnout.
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A powerful storm system is hitting the central United States hours before voters go to the polls in Tuesday's midterm elections, with severe thunderstorms, heavy rain and flooding threats from the Plains into the Mississippi Valley 1. Flooding is also a concern in Florida and New Mexico 1.
The disruption is already concrete. At least 18 polling locations were moved across seven Florida counties — Brevard, Highlands, Indian River, Martin, Okeechobee, Palm Beach and St. Lucie — after intense rainfall caused flash floods Monday and into Tuesday morning 2. Roads were impassable in several parts of the state's Atlantic coast after a storm dumped as much as 22 inches of rain in 24 hours 2.
In Oklahoma, a tornado Sunday forced Cimarron County officials to change one of its polling locations, after the storm caused "considerable structural damage" to the Keyes Community Center "rendering the polling location unsafe," county election officials said in an emergency request 2. The tornado had peak winds of about 100 mph, according to a damage survey report from the National Weather Service 2.
After historic flooding in the Four Corners region, Utah Lt. Gov. Deidre M. Henderson declared a state of emergency and issued a special accommodation allowing voters registered in San Juan County who are isolated by floodwaters to request and return ballots electronically 2. The Colorado secretary of state is allowing a similar measure for voters in La Plata and Archuleta counties 2.
In Florida, Gov. Ron DeSantis declared a state of emergency in seven counties along the Atlantic seaboard being hit with flash flooding and extreme precipitation 2. The governors of New Mexico and Colorado also asked President Donald Trump to declare a major disaster to receive federal funding assistance 2.
The Election Day threat shifts east. The Storm Prediction Center expects thunderstorms Tuesday from the Sabine and lower Mississippi valleys north into the Mid-Mississippi Valley, with some storms capable of damaging winds and a couple of tornadoes 1. Forecasters were also predicting possible flash flooding in parts of Alabama, Tennessee, Arkansas and Mississippi 2.
"Areas affected by catastrophic flooding remain extremely sensitive to any additional rainfall," forecasters wrote in a Tuesday morning discussion 2.
The Northeast and mid-Atlantic are forecast to remain largely dry and mild under high pressure 1. States set their own polling hours: Illinois opens at 6 a.m.; Florida, Iowa and Kansas generally open at 7 a.m.; and Arkansas opens at 7:30 a.m., all in local time 1. Kansas generally operates from 7 a.m. to 7 p.m. Central Time unless a county sets different hours 1.
What the research says about rain and turnout
Brad Gomez, an associate professor of political science at Florida State University, studied U.S. presidential elections from 1948 to 2000 2. "What we found was that for every inch of rain that a county received above its average amount of rainfall, voter turnout went down about eight-tenths of 1 percentage point," he said 2.
A 2023 study by researchers Søren Damsbo-Svendsen and Kasper M. Hansen, reviewing 34 previous studies, estimated each additional inch of rain was associated with an average turnout decline of roughly 1 to 2 percentage points 1. Experts said the effect is diminishing over time as more people vote early or by mail, and it is hard to predict what effect the weather will have, if any, on key races 2.
That matters because control of Congress is on the line. All 435 House seats are on the ballot Tuesday, along with 35 Senate contests 1. Democrats need to win four GOP-held Senate seats and net three Republican House seats to flip either chamber 3.
The brief closure of two voting centers in Maricopa County, Arizona, sparked a chorus of conspiracy insinuations online Monday 2. Two of the county's 254 polling locations had to be temporarily shuttered "due to power related issues," election authorities announced on social media, and both have since reopened 2. Arizona Gov. Katie Hobbs issued a statewide emergency declaration Monday 2.
The pattern is familiar: weather scrambles logistics, and misinformation fills the gap. Voters planning to cast ballots in person should check their state or local election authority for their exact polling location and hours 1.
The Record
- A tornado with peak winds of about 100 mph damaged the Keyes Community Center in Cimarron County, Oklahoma, forcing a polling location change 2.
- Arizona Gov. Katie Hobbs issued a statewide emergency declaration after record rainfall caused deadly flooding and power outages 2.
- Two of Maricopa County's 254 polling locations were temporarily closed due to power-related issues and later reopened 2.
- At least 18 polling locations were moved across seven Florida counties after flash floods 2.
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Sources
- Newsweek, “Map of Midterm Election Storms as Severe Weather Threatens 6 States” (2026-11-03). newsweek.com/election-day-voting-weather-forecast-severe-sto
- NBC News, “Floods and severe weather beset parts of the U.S. on Election Day” (2026-11-03). nbcnews.com/weather/floods/floods-severe-weather-beset-parts
- The Hill, “Your hour-by-hour guide to 2026 midterm elections” (2026-11-03). thehill.com/homenews/campaign/6181540-2026-midterm-election-
- The Guardian, “The candidates who will decide the US midterm elections” (2026-11-03). theguardian.com/us-news/ng-interactive/2026/nov/03/midterm-e
Found an error? Tell the newsroom. Corrections are noted at the top of the story.
More from the files
Record rain floods Florida's Space Coast, moving Election Day polling places
As much as 15 to 20 inches of rain swamped Brevard County, prompting rescues, a state emergency order for seven counties and new voting sites on Tuesday. A year after an earlier Brevard flood fell short of the federal aid bar, the storm is a new test of a FEMA system the Trump administration wants to shrink.
Arizona declares flood emergency as two die in Flagstaff; FEMA rejected its last request
Gov. Katie Hobbs freed $200,000 in state money Monday after record rain flooded Sedona, Flagstaff and tribal lands. The last time Arizona asked Washington for flood aid, President Trump's FEMA said no, and then rejected the appeal.
DeSantis says Florida GOP turnout is lagging as Donalds and Jolly race tightens
Gov. Ron DeSantis said Republicans have 'some work to do' on turnout, and the GOP's early-vote lead is smaller than in 2022. The warning comes days before Tuesday's election for governor.
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