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Remnant Moisture From Tropical Storm Bertha Brings Flash Flooding and Power Outages to Central and Eastern North Carolina

Heavy rain tied to Bertha's moisture plume closed roads and cut power in parts of North Carolina on July 22-23, 2026, weeks before state regulators rule on Duke Energy's pending rate increase.

How spun is the coverage?Coverage bias 3.7 / 10
6 sides analyzed18 sources cited

The Storm That Wasn't There

By Thursday morning, July 23, 2026, Tropical Storm Bertha had already fallen apart. It made landfall near New Orleans on Wednesday and dissipated over Texas by Thursday evening[1][2]. But its water didn't stop when the storm did.

A plume of tropical moisture broke off from Bertha and rode north. It stalled against a slow-moving cold front over the Carolinas and southern Virginia[1][7]. Some of the storm's worst weather ended up landing more than 800 miles from where the storm itself had come apart[1].

Near Greensboro and Winston-Salem, that stalled moisture dropped up to 6 inches of rain in just 12 hours on Wednesday night. That's roughly what those cities normally see in an entire month[2]. By Thursday morning, flash flooding had closed part of Interstate 40 northwest of Durham[2][3].

The National Weather Service had flash flood warnings up before the worst of it hit, including one for Durham, Chapel Hill, and Burlington that ran until 11 a.m. Thursday[3]. The stretch of I-40 in Orange County reopened within a few hours[3]. More than 14,000 Duke Energy customers lost power across the state, with Guilford County hit hardest at 3,888 accounts[4][5]. No deaths in North Carolina turned up in the coverage reviewed for this piece.

Fourteen Thousand Outages, Six Weeks Before a Verdict

That outage number would be a footnote most years. This year, it landed in the middle of a decision that will set North Carolina electric bills for years to come.

Duke Energy has a rate increase pending before the North Carolina Utilities Commission, filed as Docket E-7, Sub 1329 back on November 20, 2025[13]. State law requires a ruling by September 20, 2026 — less than two months away[11]. Every outage this July becomes evidence in a case that's about to close[13].

Duke originally asked for an 18.1% increase on residential bills. In a June 2026 rebuttal filing, it cut that request to about 11.6%[10]. Then, on July 20, 2026 — two days before Bertha's remnants reached North Carolina — the company signed a settlement that cut the ask again. Under that deal, the residential increase would be 5.9% in 2027 and 3.6% in 2028[25]. The settlement was joined by the Commission's own Public Staff, large industrial customers, Walmart, Microsoft, and the North Carolina Sustainable Energy Association[25]. It still needs the Commission's sign-off, and not every party in the case had signed on as of this writing[25].

What a Company Earns for Building a Grid

Duke's case for spending $8.3 billion on the grid — $3.2 billion on distribution lines, $1.3 billion on transmission, $1.7 billion on batteries — rests on a specific claim: that its "self-healing" technology avoided about 1.2 million outages last year[9].

Here's what that means. In an old-style grid, if a tree knocks down a line, a breaker trips and everyone downstream of it loses power. A crew has to drive out, find the break, and fix it before anyone's lights come back on. A self-healing grid uses automated switches that sense the fault themselves. They isolate just the damaged section and reroute power around it, so most customers on that same line never lose service at all[9].

That upgrade is also why the rate case matters so much to Duke financially, and this is worth spelling out because it explains why the company isn't a neutral witness on how much to spend. A regulated utility like Duke doesn't just get to charge customers whatever it wants. Regulators set a "return on equity" — essentially, the profit rate Duke is allowed to earn on the money it invests in the grid. Duke asked to lower that from its original number to 10.95%; the July settlement cuts it further, to 9.8%[25]. A higher allowed return makes it easier for Duke to attract investors to fund grid projects, but it also means bigger bills. A rate set too low, utilities argue, can raise their borrowing costs later and end up costing customers more down the road. That tension — between what keeps a grid financially healthy and what keeps a bill affordable — sits underneath the entire case, storm or no storm.

Duke has also moved to shave costs elsewhere. It's financing a January 2026 winter storm through a special low-interest bond, called securitization, instead of folding that cost into the rate case — saving $27.8 million[10]. Securitization works because the state authorizes a dedicated charge on bills to back a bond at a cheap interest rate, rather than letting Duke borrow at its own cost and earn a profit on top. The company is also returning leftover Hurricane Helene recovery money over two years instead of five, saving another $43.3 million[10].

The Fight That Isn't About Whether It Rained

Ratepayer advocates and clean-energy groups don't dispute that 6 inches of rain fell in 12 hours. Their argument is about value: if a summer rainstorm — not a hurricane — still knocks out power to more than 14,000 accounts, are customers getting what they're paying for[4]?

They also point to timing. Duke's initial ask of 18.1% dropped to about 11.6% only after months of public pushback, which critics say suggests the original number wasn't tightly justified to begin with[10][22]. The July 20 settlement, cutting the ask further, is proof to this camp that sustained pressure works[25].

But that settlement also split the coalition. The North Carolina Sustainable Energy Association signed on, meaning the most prominent clean-energy voice in the case is no longer opposing Duke outright[25]. The Environmental Defense Fund did not sign. It continues to argue that too much of Duke's spending still goes to conventional poles-and-wires and generation, and too little goes to batteries and demand flexibility — tools EDF says would cut outage risk more directly[24]. Their disagreement with Duke isn't really about whether to spend on resilience. It's about who gets to choose which resilience, given that a monopoly earns its return on whatever option regulators let it build[24].

The Warnings Went Out On Time

A second, quieter argument runs alongside the rate fight, and it's about the National Weather Service itself. The agency lost more than 600 employees in early 2025, part of a broader federal workforce reduction[14]. An advocacy group's tracking project claims that, as of March 2026, 55 of the agency's 122 field offices had vacancy rates of 20% or higher, and eight had stopped overnight operations[23]. NOAA hasn't confirmed that figure, and it comes from an outside group rather than the agency itself[23]. It matters here because the heaviest Greensboro rain fell overnight, the shift hardest to cover when an office is short-staffed[23].

Critics of the administration's cuts say this is exactly the risk they've been warning about. Administration defenders, along with a PolitiFact review, counter that the agency was cut but not "defunded," and that its warning obligations haven't changed[15]. In this event, both sides can point to the same fact: the warnings for Durham, Chapel Hill, and Burlington went out before 11 a.m. Thursday, right on schedule[3]. NOAA now faces a proposed 2026 budget cut of roughly 40%, so both sides in that funding fight need this storm to mean something — critics need proof the system is degrading, defenders need proof it isn't[14].

Same Rain, Different Story

Coverage of the flooding split along a predictable line, and the split is itself worth noticing. CNN and The Washington Post filed their stories under climate coverage, framing the storm as a data point in a warming trend and noting that some of Bertha's worst weather landed 800 miles from its center[1][2]. CNN ran a companion piece the same week arguing that "July is flash flood emergency season now[17]."

The physical case for that framing rests on a real, well-established mechanism: warmer air holds more water. For roughly every 1.8 degrees Fahrenheit of warming, the atmosphere can carry about 7% more water vapor. Warmer Gulf and Atlantic waters feed more moisture into a storm from the start, and a warmer atmosphere lets a weakening system like Bertha carry that moisture farther before dumping it. Climate scientists caution that pinning this specific storm's rainfall total to warming with precision would require a formal attribution study, which hadn't been done for Bertha as of this writing. But the underlying mechanism doesn't depend on that study to be real.

Fox Weather covered the same rain with none of that climate framing, instead citing a different, equally real mechanism: drought had baked the region's soil hard, so the rain ran off instead of soaking in, worsening the flooding[7]. That's a legitimate and often under-covered factor — dry, crusted ground actually floods faster than wet ground, which runs against most people's intuition. But foregrounding the drought explanation while leaving out the warming mechanism entirely is its own kind of selective framing, just pointed the other way[7].

Local outlets split too, in a smaller way. WRAL's coverage read as pure service journalism — what's closed, where the power is out — with barely any framing at all[3]. WGHP led with a story about outages in the small town of Liberty, using language about North Carolina "continuing to take hits," which strings separate storms into a pattern rather than treating this one on its own[4]. And an automated financial-news aggregator, ts2.tech, reframed the flood entirely as an investor story, citing an unsourced claim that North Carolina made up 97% of Duke's outages while representing only 45% of its customer base — a striking number with no confirmed source, worth treating as unverified[5].

None of this is the first time Durham and Chapel Hill have flooded in July. The remnants of Tropical Depression Chantal forced dozens from their homes in the same corridors almost exactly a year earlier, in July 2025[21]. The storm names keep changing. What sits under the water doesn't: the same flood-prone stretches of the Piedmont, the same overhead power lines exposed to falling trees, and a commission that will set Duke's rates by September 20 regardless of how any one storm gets remembered[11].

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The Bias Ledger average rating 3.7

The same story, as framed by outlets across the spectrum, ordered least to most biased. The bias score (1 = straight, 10 = heavily spun) is an AI assessment of that framing — click an outlet to see its track record. The tell is the word choice or omission that reveals the angle.

OutletVantageBiasHow they frame itThe tell
WRALU.S. center, Raleigh-Durham local2"Crashes, closures and flooding across central NC from heavy rain" — service journalism: what is closed, where the power is out.Almost no framing, which is itself a choice. Bertha is barely named; the storm is an unattributed rain event. Local outlets optimize for utility over narrative, so causation and policy stakes go largely unexamined.
The Washington PostU.S. center-left3"Some of Tropical Storm Bertha's worst weather is 800 miles inland" — leads on the counterintuitive geography.The framing is genuinely useful and largely descriptive. The angle chosen — distance from the storm center — subtly supports a narrative of storms behaving unusually, even though inland flooding from decaying tropical systems is long-documented. Filed under the weather desk, not opinion.
Fox WeatherU.S. right-leaning parent, largely technical weather desk3"Days of heavy rain cause dangerous flash flood threat in Mid-Atlantic, Carolinas" — impact-and-forecast framing, no storm-of-the-century language.The omission is the tell: no climate context at all. What replaces it is a competing physical explanation — drought-hardened soil worsening runoff. That is a real and often-underreported mechanism, but foregrounding it while omitting the equally well-established climate/moisture mechanism is its own selective framing, the mirror image of CNN's choice to include climate context without an attribution study.
CNNU.S. center-left4"Bertha's gone, but its moisture isn't. Southeast remains on alert for flash floods" — the storm is treated as a lingering, systemic threat rather than a passed event.The article URL carries a climate tag, and CNN ran a companion piece the same day arguing that "July is flash flood emergency season now." The rainfall figure is presented as a month's worth in 12 hours — accurate, and chosen because it reads as anomalous. Climate context is supplied without an attribution study specific to this storm.
WGHPU.S. center, Piedmont Triad local4"Large power outage reported in Liberty as North Carolina continues to take hits" — cumulative-damage framing for a Triad audience."Continues to take hits" is the loaded phrase: it strings separate weather events into a pattern of a state under siege. That's a clearer editorial choice than typical service journalism, even though the underlying number — over 2,000 customers in one small town — is reported accurately.
NBC NewsU.S. center-left4Covers the adjacent thread — NWS staffing cuts and their effect on flood forecasting — rather than this storm directly.The staffing-cuts story is kept alive as a standing frame that each new flood is fitted into. The reporting itself is sourced and includes the agency's rebuttal, but the recurring pairing of "flood" and "cuts" builds an implied causal link that no single event in the coverage establishes.
ts2.techFinancial-content aggregator, largely automated, no disclosed editorial staff6"Duke Energy (NYSE:DUK) outages highlight North Carolina rate recovery questions" — reframes a flood as an investor-relations and regulatory story.It supplies the most quotable statistic in the whole story — that NC was 97% of Duke's outages while being 45% of its monitored customers — with no sourcing to Duke or the commission. The ticker in the headline signals the audience. Precise-sounding county figures from an unaccountable aggregator should be treated as unverified.

References

  1. Some of Tropical Storm Bertha's worst weather is 800 miles inland — The Washington Post · U.S. center-left; owned by Jeff Bezos
  2. Bertha's gone, but its moisture isn't. Southeast remains on alert for flash floods — CNN · U.S. center-left; owned by Warner Bros. Discovery
  3. Heavy Rains, Flash Flooding Lead to Interstate 40 Closure and Delays in Hillsborough — Chapelboro · Local Orange County, NC news site operated by Chapel Hill Media Group; commercial radio affiliate
  4. Large power outage reported in Liberty as North Carolina continues to take hits — WGHP · Piedmont Triad local TV; Fox affiliate owned by Nexstar Media Group
  5. Duke Energy (NYSE:DUK) outages highlight North Carolina rate recovery questions — ts2.tech · Automated financial-content aggregator; no disclosed newsroom or editorial standards; figures unverified against primary sources
  6. Days of heavy rain cause dangerous flash flood threat in Mid-Atlantic, Carolinas — Fox Weather · Weather-focused arm of Fox Corporation; parent company is U.S. right-leaning, this desk is largely technical
  7. Duke Energy proposes new investments in North Carolina to boost reliability and support economic growth across the state — Duke Energy · Primary source; investor-owned regulated utility, a party to the rate case it describes
  8. Duke Energy takes rare step of lowering a rate request in front of the N.C. Utilities Commission — WUNC · NPR member station licensed to the University of North Carolina; listener- and grant-funded public radio
  9. Utilities sought record rate increases this spring as Duke's request remains before NC regulators — WRAL · Raleigh-Durham local TV; owned by Capitol Broadcasting Company, privately held
  10. North Carolina Utilities Commission, Docket No. E-7, Sub 1329 — filing — North Carolina Utilities Commission · Primary source; state regulatory agency, commissioners appointed by the governor and confirmed by the legislature
  11. National Weather Service staff cuts and the Texas floods — NBC News · U.S. center-left; owned by Comcast/NBCUniversal
  12. Trump cut but did not 'defund' National Weather Service — PolitiFact · Fact-checking project of the Poynter Institute; funded by foundations and reader donations; frequently criticized from the U.S. right as left-leaning in topic selection
  13. July is flash flood emergency season now — CNN · U.S. center-left; owned by Warner Bros. Discovery
  14. Latest: Dozens forced out of homes in Durham, Chapel Hill; roads closed across multiple counties — WRAL · Raleigh-Durham local TV; owned by Capitol Broadcasting Company, privately held
  15. Duke Energy wants an 18% rate hike for NC customers. Here's what it means for you. — NCLocal · North Carolina nonprofit local-news collaborative; foundation-funded, consumer-advocacy framing on utility coverage
  16. Half of National Weather Service Offices Critically Understaffed, Eight Cease Overnight Operations — Capture Cascade · Advocacy timeline project tracking federal agency changes; critical of the Trump administration; funding and editorial control not publicly disclosed
  17. Grid expectations: Re-wiring Duke Energy's rate case for a clean energy future — Environmental Defense Fund · U.S. environmental advocacy nonprofit and an intervenor in the rate case it is writing about; foundation- and donor-funded
  18. Duke Energy Carolinas halves its rate hike request in new settlement — WUNC · NPR member station licensed to the University of North Carolina; listener- and grant-funded public radio