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<div>Lucy is originally from the Boston area but has spent the last four years forecasting and living in Colorado! She stayed in the northeast for her education, graduating Summa Cum Laude from SUNY Oswego with a B.S. in Meteorology. Just a few days after graduation, she made the cross country move to Colorado Springs, CO to begin her career at KKTV, the CBS affiliate. Lucy has covered historic blizzards, tornadoes, windstorms, the largest wildfires in Colorado state history and dust storms ... they truly "get it all" in Colorado! Lucy is excited to forecast on a national level and continue her passion of explaining the science behind the weather!</div>
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Lucy Bergemann

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Multiple low-pressure systems eject from the Rockies and move through the Plains, keeping the forecast active with multiple severe weather chances. More energy and storm potential come into play on Tuesday and Wednesday. A MODERATE risk (level 4 out of 5) has been issued for much of Iowa, northern Missouri, western Illinois and SW Wisconsin. All modes of severe weather are likely including the potential for EF-2 tornadoes, 2" hail and wind gusts over 75 mph.Related article: <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/mondays-severe-storm-threat">Monster Hail and Tornadoes in the Plains Monday</a>A low develops and strengthens providing lift and instability changes to support severe storm development. After morning storms start to dissipate, a secondary line of storms develops along the cold front Tuesday afternoon and evening posing the risk of tornadic supercells and strong winds through eastern Nebraska, Iowa, and Illinois.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 11-17-06-1716311933717.mp4" controls="true" width="100%"></video>There is a widespread ENHANCED risk in the Upper Midwest with a MODERATE risk through Iowa, southwest Wisconsin, and northwest Illinois. We will see our highest likelihood of tornadoes from the Twin Cities through central Wisconsin down to I-70 in northern Missouri. Multiple, long-track tornadoes are possible.<img src="https://media.weathernationtv.com/app/uploads/2024/05/tornado-1716311883076.jpg"> As individual supercells develop into a line of storms damaging winds are also likely with widespread wind gusts between 60-75 mph. A strong windstorm hit Kansas over the weekend with 100+ mph winds and that potential cannot be ruled out either Tuesday. For this storm to be classified as a derecho we will need to see a swath of 60+ mph wind gusts for over 400 miles long for at least 60 miles (north/south orientation).<img src="https://media.weathernationtv.com/app/uploads/2024/05/winds-1716311883077.jpg">Flooding will be possible, with the risk of 2-4"+ of rain in the Upper Midwest. These regions have been particularly wet over the last couple of months so additional rainfall could quickly flood fields and make for high-running rivers, creeks, and streams. For more on the flood threat, check out <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/upper-midwest-flood-risk">this article</a>.<img src="https://media.weathernationtv.com/app/uploads/2024/05/forecast precip-1716289612408.png">

Hurricane Force Winds, Tornadoes for the Midwest Today

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Multiple days of severe weather are possible in the Northeast starting Tuesday and continuing through Thursday thanks to multiple cold fronts sliding east across the country. Our first round of wet weather on Tuesday is the leftover energy from Monday's storms in the Midwest.<img src="https://media.weathernationtv.com/app/uploads/2024/05/tue spc-1716301019151.jpg">Then, the same front that produced <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/storm-threat-pushes-into-midweek">severe storms on Tuesday in the Midwest</a> hits the Northeast and lower Great Lakes Wednesday with the threat of severe weather. The primary threats are pockets of large hail and damaging wind gusts. There is a SLIGHT risk from central New York through Kentucky. An additional storm risk <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/multi-day-severe-weather-threat-in-the-southern-plains">impacts the southern Plains </a>on the trailing end of our low-pressure system and cold front.<img src="https://media.weathernationtv.com/app/uploads/2024/05/wed-1716301019155.jpg">A few storm cells slide into northern New England Tuesday afternoon and evening. Most storms will be heavy rain-makers will have an isolated strong wind gust before energy moves offshore. We turn attention to the west late Tuesday night and early Wednesday morning as a cluster of storms moving out of the Midwest will impact the Ohio River Valley during the first half of the day. Additional storm development in the form of individual storm cells cluster into a line of storms on Wednesday evening pushing through the Midwest and Midsouth with heavy rain, damaging winds, and the embedded tornado potential.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 11-37-49-1716313116552.mp4" controls="true" width="100%"></video>The severe weather threat keeps pushing east on Thursday with a low-end storm threat from northern Maine through the DelMarVa. Once again our primary threat will be damaging wind, but we can't rule out small hail or an isolated tornado.<img src="https://media.weathernationtv.com/app/uploads/2024/05/sprc thu-1716301019154.jpg">Thankfully, most storms calm overnight Wednesday into Thursday so we will see pockets of steady rain in western NY and Pennsylvania early Thursday but not to severe limits. As heat increases through the day so will the storm chance with storms likely around the commute home for the I-95 corridor.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 08-14-42-1716301981687.mp4" controls="true" width="100%"></video>

Northeast: 3 Days of Severe Weather Chances

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Kevin Schneider

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More severe weather is ahead for the southern Plains from Tuesday through Thursday as an area of low pressure and dryline builds. A few supercells develop in the heat of the day on Tuesday and move through Oklahoma and southern Texas. Most of these fade shortly after sundown but a few storms could linger into the early overnight hours. A dryline often has weaker forcing, leading to more isolated storms.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 11-25-14-1716312988898.mp4" controls="true" width="100%"></video>The southern plains were upgraded into an ENHANCED risk of severe storms on Wednesday. An area of low pressure arrives in the southern Plains on Wednesday aiding with lift for storm development during the afternoon and evening hours. Individual storms develop into a line that pushes through eastern Oklahoma and northern Texas by Wednesday night with a damaging wind threat and embedded tornadoes possible.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 11-28-07-1716312963434.mp4" controls="true" width="100%"></video>On Thursday the Storm Prediction Center issued another outlook including Dallas, Oklahoma, Tulsa, and Shreveport for the risk of severe storms. There will be a large moisture surge across the southern Plains on Thursday which will aid in storm development. Stay with WeatherNation as we get closer to Thursday's risk.<video src="https://media.weathernationtv.com/app/uploads/2024/05/2024-05-21 11-27-22-1716312525822.mp4" controls="true" width="100%"></video>

Multi-day Severe Weather Threat in the Southern Plains

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Caitlin Connell

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Our multi-day severe threat started on Sunday but <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/storm-threat-pushes-into-midweek">continues through the middle and end of this week</a> in the northern and southern Plains. What looks like a landspout tornado touched down in Hayfield, MN on Monday afternoon. The storms we dealt with throughout the day on Monday was not responsible for a lot of tornado reports. What more people and places had to deal with was the giant hail and hurricane-force winds!<video src="https://media.weathernationtv.com/app/uploads/2024/05/VO_052024_RNC_HAYFIELD, MN_BIG ROTATION ON THE GROUND DURING SEVERE STORM_TW_@VERNVALLEY_JK_E052024mp4-1716296529601.mp4" controls="true" width="100%"></video>Softball-sized hail fell in Yuma, CO, in northeastern Colorado, Sunday night. And even northwestern Iowa got in on some of the action with apple-sized hail, marking 3" in diameter.<img src="https://media.weathernationtv.com/app/uploads/2024/05/HAIL REPORTS-1716296743812.jpg">Hurricane-force winds tore through much of the central and northern Plains. A 93 mph wind gust was recorded in Haiger, NE.<img src="https://media.weathernationtv.com/app/uploads/2024/05/WIND-1716296925593.jpg">As the severe weather threat is still ongoing, we can't stress to you enough just how important it is to stay weather-aware in the days ahead.

Monster Hail & Tornadoes Hit the Plains Monday

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WeatherNation Meteorologists

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More strong heat and humidity will build over Southern Texas this week. There are still roughly 200k+ customers without power in the Houston metro following strong storms last week that brought 100+ mph winds and tornadoes to Harris County. For those without A/C, seek cool spaces, take it easy when cleaning up damage, and stay hydrated.<img src="https://media.weathernationtv.com/app/uploads/2024/05/current outages-1716296720373.png">The hot temps and the extreme heat index values will continue for most of this week. Today, temperatures will be well into the triple digits in a few areas, with San Angelo getting close to 100°! There are heat alerts in effect for South Texas to account for the toasty temperatures. <img src="https://media.weathernationtv.com/app/uploads/2024/05/Texas highs Tue-1716296746372.png">This heat will dominate the forecast all week with very little relief from the heat and humidity, especially in East Texas. Temperatures remain in the 90s for many with even 100° for San Antonio into the weekend, threatening more records.<img src="https://media.weathernationtv.com/app/uploads/2024/05/record highs-1716296799337.png">To see how all of this heat is giving a boost to any storms that do manage to develop, read about the severe threat for the <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/multi-day-severe-weather-threat-in-the-southern-plains">SOUTHERN PLAINS</a>

South Texas Sizzles This Week

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Much of the Upper Midwest and Northern Great Plains poses a risk for flooding on Tuesday, thanks to the <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.weathernationtv.com/news/storm-threat-pushes-into-midweek">possibility of severe storms</a>. Some parts of Iowa, Minnesota, and Wisconsin have already seen over 6" of rainfall causing rivers, creeks and streams to overrun their banks and creating street flooding, especially in the city of Omaha. Many creeks are rapidly rising to major crests. <img src="https://media.weathernationtv.com/app/uploads/2024/05/river gauge-1716313418041.jpg">One of the factors of this flood threat is that the ground is fairly very saturated in many of these states already. This heightens the flood risk that we have headed into the middle of the workweek.<img src="https://media.weathernationtv.com/app/uploads/2024/05/Screenshot 2024-05-21 052128-1716290848416.png">Preemptively, there's an abundance of flood alerts issued through the arrowhead of Minnesota, stretching through Iowa, and reaching into central Nebraska. <img src="https://media.weathernationtv.com/app/uploads/2024/05/flood-1716304814218.jpg">Early Tuesday morning was responsible for flash flood warnings in and around Omaha and Des Moines. It's likely that much of these areas, and the surrounding spots, have already seen 2-4+". This is not a good thing considering more storms are later today. We saw reports of roadways and interstates flooding early on Tuesday. Below is the view from I-80 as you're nearing or leaving the I-480 split, just north of the Henry Doorly Zoo.<img src="https://media.weathernationtv.com/app/uploads/2024/05/ndor-1716292013933.png">

Increasing Flood Risk in the Upper Midwest

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Boeing’s Starliner spacecraft approaches the International Space Station on May 20, 2022. Credit: NASA<a target="_blank" rel="noopener noreferrer nofollow" href="https://starlinerupdates.com/">Tuesday Morning Update: </a>The Starliner test flight has been pushed to Saturday, May 25th. Boeing's Starliner Crewed test flight is hoping to launch from Kennedy Space Center in Florida. The Starliner was originally supposed to launch on Monday, May 6th but has been delayed two weeks due to a mechanical issue. According to Boeing, "Starliner teams are working to resolve a small helium leak detected in the spacecraft’s service module traced to a flange on a single reaction control system thruster. Helium is used in spacecraft thruster systems to allow the thrusters to fire and is not combustible or toxic."This mission is the second of the Boeing-NASA contract which included one uncrewed mission in May 2022, this first test crew mission and six more trips to the ISS.<div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1787689554905833889" src="https://twitter.com/BoeingSpace/status/1787689554905833889"></div>The launch was then rescheduled for May 10th and then May 17th but crews needed additional time to test the spacecraft and ensure it was safe. The Starliner will launch carrying two astronauts - Butch Wilmore and Suni Williams - to the International Space Station, now set for 4:43 PM ET on Tuesday, May 21st. The Saturn IV rocket and Starliner remain on the launchpad awaiting their next opportunity to launch. According to Boeing, "About 15 minutes after launch, Atlas' Centaur upper stage shuts down, sending Starliner on its way to the International Space Station."So how is the forecasting looking for launch? Right now skies look to be clear around Cape Canaveral so the weather won't be a huge interrupter for the forecast. For Starliner to launch the weather must have winds below 31 mph, no thunderstorms or lightning in the landing area or waves above 13.1 feet. Right now, none of that is in the forecast.<img src="https://media.weathernationtv.com/app/uploads/2024/05/forecast-1716215185212.jpg">If you're planning to watch the launch, temperatures in and around the Space Coast will be in the low and mid 80s. Be sure to pack water and wear sunscreen!<img src="https://media.weathernationtv.com/app/uploads/2024/05/tuesday highs-1716215233349.jpg">

Starliner Spacecraft Pushed to the Weekend

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Another pulse of energy moved through California on Wednesday, bringing rain, snow and even a tornado to Grover Beach, CA about 200 miles north of Los Angeles, CA. Survey crews determined low end EF-1 damage was produced in the town of Grover Beach. <div class="twitter-tweet" style="display: flex; justify-content: center" data-twitt-post-id="1755584768870392233" src="https://twitter.com/WeatherNation/status/1755584768870392233"></div>We are finally winding down the rain and snow in California, and the Golden State desperately needs a break. A few more rain and snow showers will be possible through the end of the day on Thursday before energy slides into Nevada and the Four Corners.<video src="https://media.weathernationtv.com/app/uploads/2024/02/2024-02-08 07-29-00-1707402850969.mp4" controls="true" width="100%"></video>There is an upside to the rain and snow of the past week - our snowpack is growing in the Sierra Nevada which is needed for water supply headed into the spring and summer months.<img src="https://media.weathernationtv.com/app/uploads/2024/02/snowpack-1707402818708.jpg">Due to all the new snow and incoming snow, avalanche danger is considerable, around South Lake Tahoe, Mount Shasta, and the ski resorts around Mammoth Lake. Please be extremely cautious if you are hitting the slopes.<img src="https://media.weathernationtv.com/app/uploads/2024/02/avlanche-1707328215583.jpg">

Tornado Touches Down in Coastal California

Hurricane Force Winds, Tornadoes for the Midwest Today

Multiple low-pressure systems eject from the

Northeast: 3 Days of Severe Weather Chances

Multiple days of severe weather are possible

Multi-day Severe Weather Threat in the Southern Plains

More severe weather is ahead for the southern

Monster Hail & Tornadoes Hit the Plains Monday

Our multi-day severe threat started on Sunday

South Texas Sizzles This Week

More strong heat and humidity will build over

Increasing Flood Risk in the Upper Midwest

Much of the Upper Midwest and Northern Great

Starliner Spacecraft Pushed to the Weekend

Boeing’s Starliner spacecraft approaches the