POST Online Media Lite Edition


U.S.: Severe thunderstorms forecast for portions of Plains, Mississippi Valley, and mid south

Christian Fernsby |
A deep upper-level trough over the West will begin to move out over the High Plains Thursday, encouraging lee cyclogenesis in the Central High Plains.

Article continues below

This will lead to subsequent reinforcement/organization of a warm front pushing northward over the Central Plains and Midwest, a Pacific front moving east over the Rockies/High Plains, and a dryline extending southward through the Central/Southern Plains.

A warm, moist airmass will surge northward over the Plains Thursday evening as a strong low level jet develops.

Some moderate to locally heavy rainfall is possible with storms developing along the warm front, particularly as storms may have the tendency to repeat over the same areas as motions remain oriented along the front.

A Marginal Risk of Excessive Rainfall (level 1/4) is in effect for portions of the Upper Mississippi Valley into the Upper Great Lakes as a few isolated instances of flash flooding are possible.

A Marginal Risk of Severe Weather (level 1/5) has also been issued by the Storm Prediction Center over portions of the Central/Southern Plains for the chance of a couple isolated supercells ahead of the dryline that could produce large hail, damaging winds, and a tornado.

More widespread, impactful weather is expected Friday as a vigorous upper-level jet moves out over the Mississippi Valley and higher moisture from the Gulf has had a chance to flow northward.

Numerous and widespread storms are expected to develop ahead of and along the eastward moving cold front.

Moderate to strong buoyancy in the presence of intense upper-level and low-level shear has prompted two Moderate Risk outlooks for Severe Weather (level 4/5) from the Storm Prediction Center.

One risk area centers on the Upper Mississippi Valley, where storms will have the potential to produce widespread, significant damaging winds along with large hail and tornadoes.

Another focus area will be on the Mid-South, where very strong low level shear will increase the risk for strong, long-track tornadoes in addition to large hail and damaging winds.

A lower, but still significant risk of severe thunderstorms will exist outside these regions across the Mississippi Valley.

While the front is expected to remain rather progressive, anomalously high moisture leading to very heavy rainfall rates and storm motions roughly parallel to the front resulting in repeated rounds of rainfall may also lead to some flash flooding concerns.

A Slight Risk of Excessive Rainfall (level 2/4) has been introduced from the Mid-South eastward into the Ohio and Tennessee Valleys.

Further west behind the dryline, a tightening pressure gradient with the deepening surface cyclone ahead of the Pacific cold front pushing eastward will lead to very strong, gusty downsloping winds over the Central/Southern High Plains.

The Storm Prediction Center has issued a Critical Risk of Fire Weather for both Thursday and Friday over the region as temperatures soar into the upper 70s and low 80s, relative humidity decreases, and gusts upwards of 50 mph will promote the risk for wildfires.

High temperatures overall will be unseasonably warm over much of the central/eastern U.S.

as the warm front lifts northward.

Highs in the 60s and 70s, and even some low 80s, over the Central/Southern High Plains, Mississippi Valley, and Southeast Thursday will spread northeastward into the Ohio Valley, Lower Great Lakes, and Mid-Atlantic Friday.

Meanwhile, further north, a secondary cold front pushing south from Canada will help to reinforce the cold air over the region as moisture streams northward, leading to areas of heavy snow from the Northern Plains into the Upper Midwest beginning late Thursday night.

Winter weather-related advisories are in effect from South Dakota east into Minnesota and Wisconsin for the potential of snow totals generally between 3-6", with locally heavier totals of 10"+ possible.

In addition, gusty winds behind the front upwards of 50 mph will lead to areas of blowing snow and blizzard conditions, making travel treacherous to impossible.

A wintry mix is forecast along the southern end of the snow axis, with the potential for some impactful ice accumulations.

Temperatures will remain unseasonably chilly with highs Thursday and Friday in the 20s and 30s.

Lows may dip into the single digits for some locations Saturday morning.

The cold front sliding southward over the High Plains Friday will drop highs into the 30s and 40s for the Central High Plains.

There will be quite the stark contrast in temperatures between the frontal boundaries draped across the region, with highs on Friday in Iowa forecast to reach the low 70s and highs just to the northwest over South Dakota in the upper 20s and low 30s.

Snow will continue over the Intermountain West under the influence of the deep upper-level trough and a frontal system pushing through the region.

Additional locally heavy accumulations of 6-12"+ are possible for higher elevations in the mountain ranges of the eastern Great Basin and Northern/Central Rockies Thursday into early Friday.

Little to no snow accumulations are expected for most lower elevation valley locations, however some light accumulations will be possible over the Northern High Plains.

Another Pacific storm system will approach the Pacific Northwest early Friday, bringing moderate to locally heavy lower elevation/coastal rain and heavy snow accumulations to higher elevations of the Cascades.

Moisture will spread inland over the northern Great Basin/Northern Rockies by Friday evening, with accumulating snowfall forecast for higher elevation mountain ranges here as well.

High temperatures will remain well below average across the West under the influence of the upper-level trough and behind the initial Pacific cold front pushing through the region.

Highs will generally be in the 30s and 40s for the Northern/Central Rockies and Great Basin Thursday-Friday, with highs in the 50s over the Pacific Northwest Thursday also dropping into the 40s Friday.

Highs in California will only be in the 50s for most locations Thursday, with the potential for some record-tying/breaking low maximum temperatures over southern California.

The Desert Southwest will be in the 60s Thursday, with some low 70s possible Friday.

What to read next

U.S.: Powerful storm to affect west and Plains, snow to unfold
U.S.: Active weather through Memorial Day weekend
U.S.: Severe thunderstorm and fire weather threats persist

U.S.: Heavy rainfall and severe thunderstorm threats, record high temperatures

A blocky weather pattern continues across the CONUS heading into June.


Brazilian banks will deny credit to meatpackers that buy cattle from deforested areas
Scotland's economy grows by 0.4% in Q1 of 2023
Air India hiring 600 cabin crew and pilots per month
EU-Russia trade: From deficit to €0.2 billion surplus


Torrential rains paralyze life in Türkiye

North Korea’s first spy satellite crashes into sea
UK train passengers hit by fresh strike disruption
Bill banning sex changes except for congenital anomalies in children submitted to State Duma
Theranos founder Elizabeth Holmes checks in at prison
U.S.: Severe thunderstorms, excessive rainfall and critical fire weather concerns


Track laying starts on Chinese-built Hungarian section of Budapest-Belgrade railway

UK’s first post-Brexit trade deals to go live at midnight on Wednesday
Italy awards 422 MW in latest renewable energy tender
SpiritsEUROPE not happy with Ireland's alcohol labelling
Namibia launches $10 billion hydrogen project
Dubai World Trade Centre generated $3.55 billion

Trending Now

People coinfected with COVID and most prevalent herpesviruses at increased risk of cardiovascular disease

Air India hiring 600 cabin crew and pilots per month

Jewels of Emirates show to kick off at Expo Centre Sharjah

U.S.: Heavy rainfall and severe thunderstorm threats, record high temperatures


Massive boost to childcare payments marks first step in largest ever expansion of childcare in UK

Zelensky: Ukraine, South Korea might make lithium batteries together
New York: Interagency small business tour to connect businesses
Poland closes border to freight vehicles from Russia, Belarus
Iran signs cooperation MoU to export cars to Oman
Iran, Oman agree to jointly develop Hengam Oilfield

Today We Recommend

Air New Zealand weighing passengers before boarding international flights


Air India hiring 600 cabin crew and pilots per month

Asda to acquire EG Group’s UK and Ireland business for £2.27bn

Fortaco sales up 31.1%


Air New Zealand weighing passengers before boarding international flights

Toyota flags possible leak of customer data in some countries in Asia, Oceania
Scania shifts focus to complete buses and coaches, ceases body production in Poland
British Gas expands smart home charging solutions with Hive EV charger for electric cars
Liquid Dataport launches its shortest fibre route connecting East Coast to West Coast of Africa
Hyundai and LGES to establish battery cell manufacturing JV in U.S.

CAREERS announces Majed Al Sorour as president

Fredrik Göransson appointed new CEO of Transtronic
Newmont appoints Karyn Ovelman as EVP, CFO
Intracom Middle East appoints general manager for MEA & APAC
Tetra Pharm Technologies strengthens management board
Gibson Brands announces Elizabeth Heidt as chief marketing officer


South Korea's export volume falls for second month in April

UK industry reports record high shop price inflation in May
Willingness among companies in Germany to hire new staff declined
Unemployment rate varied widely across EU regions
Belarus reports full recovery of exports
Mexico's economy grows 3.7 pct in Q1, 2023


Hewlett Packard Enterprise Q2 profit increases

HP Inc. Q2 profit increases
Fortaco sales up 31.1%
AllianceBernstein Q4 net assets $910,948,934
Hibbett Q1 sales increased 7.4%
Ulta Beauty Q1 sales increased 12.3%


Micromanaging is the worst enemy of efficiency and teamwork

Niger set to monetize massive gas reserves through Saharan natural gas pipeline
Putting the brakes on EV folly that choked the market
Oil discovery in Kavango Basin may mean huge benefits for Namibians
Cape Town and Dubai battle over Africa's energy future
Is America going to lose its superpower status?


After 20 years, EU reopened its market to Argentine organic citrus

Oregon: Central coast opens for razor clam harvesting
Japan's fish catch hits record low in 2022
Ukraine halts sugar exports until mid-September
Precision livestock farming market estimated to reach $11.2 billion
Louisiana: Livestock OTC antibiotics will soon require prescription


How to get people to pay their taxes

Consumers pay strategically to forget guilty purchases
'Employee of the Month' is not a good thing, especially in Asia
Conservative CEOs acquire international firms, liberal counterparts make alliances
Employees should not be allowed to choose their teammates
Online retailers, charge upfront membership fee in exchange for free shipping


Pennsylvania: Shell acknowledges exceeding emission limitations, set aside millions for improvement projects

After exposure, Ukrtatnafta transfers to state budget over USD 32 mln of taxes unpaid by former owners
Settlement reached with Walmart over brass knuckles illegally sold to Californians
New York State AG secures $300,000 from online sporting goods retailers for not protecting consumers’ personal info
Citizens Bank to pay $9 million penalty over credit card practices
EU hits Meta with record €1.2b privacy fine



Jewels of Emirates show to kick off at Expo Centre Sharjah

Sotheby’s to unveil largest ruby, most vivid red diamond
Beer, bourbon, and barbecue returns to Virgina in style
Piazza di Siena horse show returns to Rome
Prague Fringe will welcome more than 200 performances of around 40 different shows
Renaissance Faire, festival of old English habits


Buick introduces first premium crossover Envista

Lamborghini unveils Urus Performante Essenza SCV12 limited edition
2024 Ford Ranger, strength and improved ground clearance
750S, lightest and most powerful McLaren
Bavaria Cruiser 46 Style, for people who love best yacht design
Airbus ACJ TwoTwenty, new standard in corporate jets


Turn your loggia into cozy home office

Hallway lights for every style
TerraFlame, clean burning flame outdoor and indoor
Waterford Crystal, Irish pride since 1783
Great ways to make your bathroom looks luxurious on a budget
Italian coffee makers to feel like a pro


Motorola edge 40 smartphone, great camera and speed

Audioresearch Reference 750 SEL monoblock amplifier, 77.2 kg and 750 watts
Gigabyte AERO 14 OLED laptop, created to protect your eyes
Technics stereo power amplifier SE-R1, perfect in every detail
Ballfinger open reel tape machine M 063 H6, device you should have
Acer announced laptop and projector in its eco range


People coinfected with COVID and most prevalent herpesviruses at increased risk of cardiovascular disease

FDA proposes new medication guide for patients
No more free vapes for kids in UK
Probe into source of cholera outbreak underway in South Africa
How Botox enters brain cells, discovery that could save lives
Growth hormone deficiency: Novo Nordisk receives positive opinion for Sogroya


UAE to send spaceship to asteroid belt to find origin of life

Peru passes important ocean protection law to protect first 5 nautical miles at sea
One-third of galaxy's most common planets could be in habitable zone
Shanghai records hottest May day in 100 years
First ‘plastic rain’ weather forecast predicts 50kg of microplastics over Paris
California snowlines on track to be 1,600 feet higher by century’s end