2026 04 10
• April 10, 2026
A Rare Multi-Day Outbreak Signal Is Emerging for the Southern Plains
Spring 2026 has already been one of the most active severe weather seasons in recent memory — and the atmosphere isn't done. A rare and significant signal is emerging in the extended forecasts that demands attention: the Storm Prediction Center has issued severe weather outlooks for four consecutive days from Saturday, April 11 through Tuesday, April 14, targeting a corridor from west Texas through Oklahoma and Kansas into the Midwest. Forecasters say this level of advance confidence, this far out, is seen only a couple of times per year.
Today: Active, But Just the Warm-Up
Severe thunderstorms are ongoing and possible this afternoon and evening across parts of Kansas, southeast Nebraska, and northwest Missouri, where scattered strong to severe storms have developed near a southward-moving cold front and a weak dryline. The primary threats are large hail and severe wind gusts, with supercell structures supported by moderate deep-layer shear and steep mid-level lapse rates. WPC also has a Marginal Risk of Excessive Rainfall in place for portions of the Central Plains, where MUCAPE values in the 1,000–1,500 J/kg range and precipitable water near 1.5 inches could support locally heavy rain rates.
This setup is largely a precursor — the opening act for what's coming this weekend.
The Big Picture: April 11–14
What the SPC is highlighting for the next four days is unusual by any measure. Extended-range severe weather outlooks at the Day 4–7 range are not common. When the SPC issues them across four consecutive days with this level of organized confidence, it reflects an atmospheric pattern that is unusually well-defined and consistent among the model guidance.
The setup is textbook spring Plains severe weather. Moisture from the Gulf of Mexico is surging northward into the Plains and Midwest. A closed Pacific upper trough is digging into the West and will eject eastward across the southern Rockies through next week, interacting with that warm moist airmass in the exact way that produces the most dangerous storms of the season. Wind shear — the changing of wind speed and direction with height that gives supercells their rotation — will be increasing significantly across the corridor by Tuesday.
Here's how the days break down:
Saturday, April 11: Southwesterly mid-level flow loads the southern and central Plains. A moist, moderately unstable airmass develops from the southern Plains northward into the Upper Midwest. The greatest potential is in the southern and central Plains where steep mid-level lapse rates and moderate deep-layer shear support supercells capable of large hail and severe wind gusts.
Sunday, April 12: Mid-level flow strengthens further. Moisture advection continues in the Great Plains. Moderate instability builds from north Texas northward into the upper Mississippi Valley by afternoon. Isolated to scattered severe storms are expected, with a tornado threat developing as the low-level jet strengthens overnight.
Monday, April 13: Deep-layer shear increases further. The SPC is highlighting severe storms capable of large hail, wind damage, and tornadoes — with language in the discussion pointing toward a potential for storm mode and intensity to increase compared to earlier in the event.
Tuesday, April 14: This is the day forecasters are watching most closely. A mid-level jet streak ejects northeastward across the southern High Plains as an upper trough enters the southern Rockies. Strong deep-layer shear across the southern and central Plains will support a substantial severe threat — supercells with large hail, damaging winds, and tornadoes are expected. The SPC is already noting that an upgrade will be possible once confidence increases on the timing of the trough.
Dallas, Oklahoma City, Wichita, and Tulsa are forecast to be in the bullseye for two to three consecutive days — a level of sustained, direct threat to major population centers that warrants serious attention now, not the morning the storms fire.
Flooding Is Part of This Story Too
This isn't just a wind and tornado event. WPC has placed Marginal Excessive Rainfall Risks on Saturday and Sunday for the southern Plains, and the heavy rain threat is expected to expand northeastward into the Mississippi Valley and Midwest as the system strengthens and lifts through early next week. With soils across parts of the central U.S. still holding moisture from the repeated rainfall events of the past two weeks, flash flooding thresholds will be lower than normal across much of the affected corridor. Multi-day rainfall totals of several inches are possible across some areas.
Other Hazards This Week
Sierra Nevada snow: A closed Pacific upper trough pushing inland this weekend is bringing significant mountain snow to the Sierra Nevada, with WPC probabilities showing 50–80% chances of 6 or more inches across a large portion of the range. Passes will increasingly become dangerous for travel through the weekend as snow levels drop to around 6,000 feet by Saturday evening and potentially 4,500 feet by Sunday morning.
Florida: The eastern Florida Peninsula has been dealing with persistent heavy rain and thunderstorms all week, with another round expected through today. Flash flood guidance has been well-utilized in parts of east-central Florida.
Southeast drought: While storms dominate the discussion in the Plains, drought continues to quietly expand across the Southeast. Severe drought has now spread across Alabama, Florida, and southern Georgia, and has been newly introduced in parts of northern Georgia — a region that saw temperature departures of up to 18 degrees above normal in recent weeks paired with well-below-normal rainfall.
Prepare Now
If you live in Texas, Oklahoma, Kansas, Missouri, or adjacent areas, this is the week to act on preparedness — not wait until Saturday. Know your shelter locations. Charge your devices. Ensure your weather alerts are enabled. Flash flooding evacuation routes matter here too, given the rainfall component of this event.
Track all active NWS warnings, watches, and advisories in real time at nwsalerts.net — including storm reports sourced directly from trained spotters via IEM GeoJSON, and SPC convective outlooks displayed live on the map for Days 1 through 3.