More than 21 million people across parts of at least seven states sit inside Storm Prediction Center severe-thunderstorm risk areas on Monday, November 2, according to a November 1 forecast from Meteored. Damaging winds and large hail are the primary hazards, and a few tornadoes are possible. The strongest cells are expected along the southern end of a cold front crossing the central United States.
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Two rungs of a five-level scale are in play. The marginal risk is level 1 of 5 and the slight risk is level 2 of 5, which means no part of the 21 million is in the enhanced category or above. The Meteored piece, written by Timothy McGill, names neither the seven states nor any cities, so the count describes a broad swath rather than a list of exposed towns.
The two lowest rungs of the severe-weather scale
The Storm Prediction Center issues convective outlooks several days ahead, and its Day 1, Day 2 and Day 3 pages are where a Monday outlook would appear as it is updated. Copies of those pages retrieved while this report was prepared turned out to be archived products from earlier years, including a 2021 Day 3 outlook that had no risk area at all, so Monday’s state-by-state map could not be read directly from the agency and the people count rests on the Meteored account.
A marginal or slight rating signals isolated to scattered severe storms. Slight is the step where forecasters expect a few reports of wind or hail, whereas marginal covers places where storms may only briefly reach severe limits. A few tornadoes being possible within such areas is a reason to keep a weather radio or phone alerts active, even though the odds for any single community stay low. McGill’s text gives no tornado probability, and the risk categories describe the chance of severe weather within a given distance of a point, so a town outside the shaded area can still see a damaging storm on a day like this one.
Warm air ahead of the front
Warmth fuels the setup. Meteored forecast afternoon highs from Texas to Minnesota as much as 10 to 20-plus degrees above average on Monday, with most of Texas and Louisiana in the 80s and the 70s reaching north to Missouri and Kansas. Air that warm and moist sits ahead of the cold front, and the contrast across the boundary is where storms organize. That includes parts of Texas and Louisiana, where the afternoon highs forecast for Monday are well outside early-November norms, and the Missouri and Kansas corridor where the warmth is a notch milder but still well above average for the date.
The setup shifts east on Tuesday. McGill wrote that the warmth moves to the Gulf Coast, Tennessee Valley, Ohio Valley, Great Lakes and Northeast, which implies the severe threat follows the front toward those regions in the following day’s outlooks. No Tuesday severe-weather risk count was given in the article, so that stage of the event remains an open forecasting question.
Heavy rain riding along with the wind and hail
Severe storms are one of two hazards moving with the front. The Weather Prediction Center’s excessive rainfall outlook for Sunday into Monday, issued at 1529 UTC by forecaster Kleebauer, showed a moderate-risk area of roughly 1.39 million people across 70,538 square miles, with about 21.2 million in a slight risk and 41.6 million in marginal. Meteored separately counted almost 48 million people in at least 17 states facing flash-flood risk from Monday into early Tuesday.
The rain numbers describe a different hazard and a different set of people, though the geography overlaps. A storm that produces large hail can also drop several inches of rain in an hour, and drivers who meet water over a road face a danger that has nothing to do with tornado warnings. The two outlooks should be read side by side, not as substitutes.
What remains unknown is the distribution: how many of the 21 million fall into slight rather than marginal risk, which seven states are involved, and whether the Storm Prediction Center upgrades any area as the front’s timing firms up. On the cold side of the same pattern, the National Weather Service in Grand Junction had a winter storm warning in place for the San Juan Mountains of southwest Colorado until noon Monday, with 12 to 18 inches of snow forecast above 10,000 feet, a reminder that one system can produce thunderstorms in the plains and heavy snow in the high country at once. Local National Weather Service offices, working from the radar and the outlook categories, will issue watches and warnings once storms form or appear imminent, and those short-fuse products, not the outlook, are what call for immediate action. Outlooks are updated through the day, so the seven-state footprint may change between this forecast and the storms themselves.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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