Three things are compressing the vehicle transport market simultaneously as of today.
CBS News reported this afternoon that national retail diesel hit $5.46/gal — the highest level since the U.S.-Iran war began, per AAA. The cause: the Strait of Hormuz remains closed, ceasefire negotiations between the U.S. and Iran have stalled, and crude oil is climbing back toward pre-ceasefire levels. Brent crude — the international oil benchmark — is at $111/barrel. Diesel is moving with it.
At the same time, 8 active Tornado Watches are in effect across Oklahoma and Mississippi as of this morning, the Central Plains has reached 85 total weather alerts, 80 severe — the highest corridor count in five weeks of this series — and a regional refinery disruption in Indiana and Illinois is pushing Midwest diesel 40–50 cents above April 7 levels in the specific states also carrying the most active flooding in the country.
And a demand driver that has been running since March is still running: snowbird migration out of Florida, Arizona, and other vacation states is still active and will continue for the next four to six weeks. Consumer vehicle shipments heading north are still competing with dealer loads for carrier capacity on northbound lanes — particularly FL→Great Lakes and FL→Northeast — and that compression has not normalized.
The per-unit financial stakes are also higher than at any point this spring. The average marketed vehicle price is $51,124, per Automotive News, up $1,044 year-over-year. Used-car values jumped further in April per Car Dealership Guy. When the average unit is worth more than $50,000 and active weather events, a diesel spike, and seasonal demand are all compressing key corridors simultaneously, the cost of imprecise transport decisions is higher per event than at any prior week this spring.
Here is the complete picture for the week of April 28.
What's Driving the Market Right Now
Diesel Hits $5.46 And the Iran Stalemate
The Iran war has been running in the background of this series for weeks. Today, it showed up in the numbers.
AAA data reported by CBS News puts national retail diesel at $5.46/gal as of April 28 — up $1.70 since the war began. The trigger is straightforward: the two-week ceasefire announced April 8 gave oil markets a brief window of relief, but the Strait of Hormuz is still closed, negotiations have stalled, and crude is clawing back what it gave up. As GasBuddy analyst Patrick De Haan put it: "The Strait is not reopened — there's no cohesive plan for reopening it — and now negotiations have been basically stopped. So oil's been slowly recapturing some of what it gave up after the ceasefire was announced."
For carriers, diesel is the single largest operating cost. At $5.46/gal — already above the EIA weekly data in the table below — the floor on every carrier's rate calculation moved up this week. The EIA figures in this post reflect April 20. The market has already moved past them.
Nobody expects near-term relief. Even if a Hormuz deal materializes, energy infrastructure doesn't recover overnight. Diesel spikes fast when crude rises and falls slowly when it drops. Dealers should treat today's fuel costs as the Q2 baseline, not a blip to wait out.
The Midwest Is Getting Hit Twice
On top of the national surge, the Midwest is carrying its own fuel problem. De Haan flagged Michigan, Wisconsin, Illinois, and Indiana specifically — a power outage at a Northwest Indiana refinery and a separate issue at an Illinois plant have pushed wholesale diesel in those states 40–50 cents above April 7 levels.
Here's what makes this week different: those are the same states under active Flood Warnings and Severe Thunderstorm Watches. Carriers running through Indiana, Michigan, Ohio, and Illinois right now are dealing with weather disruption and fuel costs running well above the national average at the same time. The EIA table below won't capture it — if you're posting a Midwest-corridor load this week, the real cost environment is higher than what's shown.
Snowbird Season Isn't Over
This has been active since March and it's not going anywhere for another four to six weeks. Retirees returning north from Florida, Arizona, and the Carolinas are still shipping vehicles home to Michigan, Ohio, Minnesota, and the Northeast — and their consumer shipments are competing directly with dealer loads for the same carrier capacity.
The FL→Great Lakes and FL→Northeast corridors haven't normalized. They won't until late May at the earliest. Making it worse: the destination end of those lanes is still dealing with active flooding in the Great Lakes and a regional diesel premium in Indiana and Illinois. Carriers heading north are navigating compounded conditions at destination while consumer demand competes for their availability at origin.
If you're posting Florida-origin or Southeast-origin loads heading north — price to current market. The post-snowbird carrier availability window hasn't opened yet.
$51K Per Vehicle
Automotive News' real-time inventory tracker puts the average marketed vehicle at $51,124 — up $1,044 year-over-year. Car Dealership Guy reported used-car prices climbed further in April. At that per-unit value, daily carrying costs — floorplan interest, storage, depreciation exposure — run roughly $8–10/day on a typical unit, more on premium or European brand inventory.
Stack that against $5.46 diesel, a Midwest refinery premium, 8 active Tornado Watches in South Central, 85 severe weather alerts in the Central Plains, and snowbird demand still compressing northbound availability — and the cost of an imprecise transport decision this week is the highest it's been all spring.
Dealers Are Fighting Harder for Inventory
Car Dealership Guy reported this week that the inventory battle between franchise dealers and Carvana/CarMax is intensifying. EU auto exports to the U.S. are down 22% on tariffs. Used vehicle demand is rising as new vehicle prices stay elevated. The sourcing competition is real.
Dealers who move acquired inventory to their lots faster have a genuine edge — and that starts with posting at accurate, current-market rates and getting booked in one day instead of three. That edge is worth more in a week where fuel, weather, and seasonal demand are all squeezing the same corridors.
Stellantis Rebound Emerging
Car Dealership Guy's Breakdown series flagged a long-awaited Stellantis turnaround, with the first quarterly profit expected on April 30. For Jeep, Ram, Dodge, and Chrysler dealers, a production recovery means more inventory moving through the pipeline — and more units needing transport on lanes already under pressure from weather, fuel, and seasonal demand.
Diesel Prices by Region: Week Ending April 20 — Already Superseded by Today's Move
*(EIA retail diesel survey data, week ending April 20, 2026. As of April 28, AAA reports national retail diesel at $5.46/gal — above all figures in this table. Midwest corridor carrying additional 40–50 cent regional premium from Indiana and Illinois refinery disruptions. Pull the AHX Market Estimate Tool for current lane pricing before posting.)
The EIA survey collected through April 20 showed broad diesel relief — most regions declining, national average at approximately $5.37/gal. That picture changed today. The AAA national retail diesel figure of $5.46/gal reflects the Iran war stalemate pushing crude higher in real time. The Midwest regional premium from the Indiana and Illinois refinery disruptions adds a further layer on top of the national move for any shipment touching those states.
The year-over-year context is unchanged and structurally important: every region is still running 48–58% above last year's diesel prices. Today's war-driven increase is layered on top of an already-elevated baseline that has been running since the conflict began. Carriers have been absorbing these costs for months — their minimum acceptable rates reflect it. Any dealer benchmarking against 2025 transport invoices is working from a baseline that no longer exists.
Active Weather Disruptions: The Storm Has Moved South
(NOAA/NWS active alerts as of April 28, 2026, 18:37 UTC)
Central Plains: Most Alert-Dense Corridor and Carrying a Regional Diesel Premium
85 total alerts, 80 severe. Illinois, Kansas, Missouri, and Nebraska have 68 active Flood Warnings alongside 8 live Severe Thunderstorm Warnings as of publication. This is the highest corridor alert count in five weeks of this series. The flooding has been continuous for four weeks on fully saturated ground — additional precipitation translates directly to flooding with almost no lag. Some Flood Warnings extend into next week.
The Indiana and Illinois refinery disruptions flagged by GasBuddy make this corridor doubly pressured: carriers running through or delivering to the Central Plains are operating in active severe weather and paying above-national-average diesel in the specific states where the refinery issues are concentrated. No other corridor this week carries both of those burdens simultaneously to the same degree.
South Central: Tornado Watches Active as of This Morning
8 Tornado Watches across Oklahoma and Mississippi, with 5 Severe Thunderstorm Warnings and 3 Red Flag Warnings active. This corridor had 3 total alerts last week. The watch issued in Oklahoma this morning runs through 7:00 PM CDT. These are active, in-progress conditions — not forecasts. Carriers on Texas, Oklahoma, Arkansas, and Louisiana lanes are making real-time routing decisions this afternoon.
Despite the weather, South Central has the lowest fuel costs in the country per EIA data at $5.01/gal — the least exposed to the national Iran-driven diesel increase of any region. Once the storm system clears, South Central will be the most carrier-favorable corridor on fuel economics. Loads posted now at market rate will be positioned for quick pickup as carrier availability normalizes.
Great Lakes: Improving on Weather, Pressured on Fuel
Great Lakes dropped from 83 total/53 severe to 29/25 — genuine improvement for Indiana, Ohio, Michigan, and Kentucky. 24 Flood Warnings remain active, with a Severe Thunderstorm Watch running this afternoon. Indiana and Illinois are specifically flagged for the largest regional diesel premium in the country from refinery disruptions. Carriers delivering to this corridor are paying above-national-average diesel even as the weather picture begins to clear. Both factors belong in the pricing calculation for Great Lakes-delivery shipments this week.
Upper Midwest: Still Active, Warnings Through May 3
Upper Midwest dropped from 56 total/50 severe to 18/17, with 17 active Flood Warnings. Some warnings in Iowa and Illinois run through May 3. This is genuine improvement in the alert count, but active warnings extending into next week mean the transit variability in this corridor is not resolved for dealers with shipments delivering this week or early next.
West Coast: Two-Week Storm Has Cleared
Six total alerts, one severe — down from 26/9 last week. The Winter Storm Warnings that ran through two consecutive weeks in Washington, Oregon, and California have ended. Wind Advisories remain and a single Flood Warning is active in eastern Washington. Combined with the $0.29/gal fuel drop week-over-week, this is the most improved corridor from a compound-pressure standpoint. The West Coast remains the most expensive fuel market nationally and will feel the Iran-driven diesel increase acutely given its already-elevated baseline — but the two-week storm disruption is over.
Southeast and Mid-Atlantic: Cleanest Corridors — With One Demand Caveat
Zero severe alerts in the Southeast. Zero severe in the Mid-Atlantic. No refinery issues. No active severe weather. Per EIA data, Southeast diesel is at $5.12/gal and Mid-Atlantic $5.23/gal — both below the national average. These are the cleanest corridors on the map this week for operational conditions.
The one caveat: northbound loads out of the Southeast are still demand-compressed by active snowbird migration. Dealers posting FL→Midwest or FL→Northeast loads should not assume post-snowbird carrier availability — that normalization won't arrive until late May. The carrier availability on those specific northbound lanes remains tighter than Southeast regional weather and fuel conditions would suggest in isolation.
Corridor Outlook: Where to Route, What to Expect
FL → Great Lakes / Upper Midwest is the most layered lane in the country this week. Consumer snowbird moves are still pulling carrier availability northbound out of the Southeast. The destination corridor has active Flood Warnings running through May 3 in some cases. The Great Lakes is absorbing a regional diesel premium from Indiana and Illinois refinery disruptions on top of the national Iran-driven increase. Tax season has closed, but every other demand and cost factor on this lane remains active. Price at current market, use ELD tracking, and build a flexible ETA window into lot planning.
Central Plains is the most alert-dense corridor nationally — 85 total, 80 severe — carrying live Severe Thunderstorm Warnings and 68 Flood Warnings, combined with a regional diesel premium from the same Indiana and Illinois refinery issues. This is the corridor that concentrates the most simultaneous pressures this week. ETA variability should be assumed; ELD tracking should be active on any shipment in this corridor.
South Central has the most dramatic weather conditions today — 8 active Tornado Watches — but will normalize as the storm clears through this evening. The underlying fuel economics ($5.01/gal, lowest nationally) make it structurally the most carrier-favorable corridor once conditions clear. Post at market now and let the booking come as weather normalizes.
West Coast has cleared its two-week storm disruption and posted the biggest single-week fuel drop of the spring. It remains the most expensive fuel market nationally and will absorb the Iran-driven diesel increase, but carrier operations are returning to normal for the first time since mid-April.
Southeast and Mid-Atlantic are the week's cleanest corridors for weather and fuel — zero severe alerts, no regional diesel disruption, moderate fuel costs. Northbound loads out of Florida remain demand-compressed by snowbird migration, but Southeast-to-Southeast or Southeast-to-Mid-Atlantic lanes are as open as any in the country this week.
What Dealers Should Do This Week
Do not price shipments based on last week's rate estimates. Diesel moved from the EIA's ~$5.37/gal survey figure to $5.46/gal nationally as of today, and the Midwest is running 40–50 cents above that in specific markets. The AHX Market Estimate Tool reflects current market conditions — pull it before posting anything this week, particularly on Midwest-corridor shipments where the gap between last week's EIA data and today's reality is the largest.
If anything is moving through Oklahoma, Kansas, or Missouri today — check ELD before making any delivery commitments. Tornado Watches and live Severe Thunderstorm Warnings are active in the Central Plains and South Central as of publication. AHX's live ELD tracking shows current carrier location and movement in real time — use it before promising a delivery window to your lot team or a customer today.
Don't price northbound Florida and Southeast loads against a post-snowbird assumption. Snowbird migration is still active and will be for the next four to six weeks. Consumer vehicle shipments heading north out of Florida, Arizona, and the Carolinas are still in the carrier pool on those northbound lanes. FL→Midwest and FL→Northeast carrier availability has not opened up. Use the AHX Market Estimate Tool to see what those lanes are clearing at right now — it will reflect the actual competitive market, not a seasonally adjusted assumption that doesn't yet apply.
Factor the $51,124 average unit value into your transport urgency. At that per-unit value, carrying costs on a delayed shipment run $8–10/day or more. Saving $50 in transport cost by underpaying on a Midwest lane that carriers are avoiding — because of flooding, a regional diesel premium, and active Tornado Watches nearby — is a worse trade-off today than it was at last year's average transaction prices.
Southeast and Mid-Atlantic loads can be posted with confidence. Zero severe weather alerts, no regional diesel disruption, moderate fuel costs. For loads delivering in those corridors — not northbound from them — the AHX average from posting to carrier booking is one day when priced at market. These corridors will perform to that standard this week.
As Scott Moore, General Sales Manager at Suburban Volvo Cars, put it: "Posting a shipment takes seconds. Seeing a carrier grab it in one minute shows how efficient AHX is." In a week where diesel just hit a war-era high, Tornado Watches are active, the Midwest is absorbing both flooding and a refinery-driven fuel premium, and snowbird demand is still compressing northbound carrier capacity — posting accurately and immediately with 5,500+ vetted carriers seeing your load the moment it goes live is the operational advantage.
Frequently Asked Questions
Why did diesel hit a new high today? AAA is reporting national retail diesel at $5.46/gal as of April 28 — the highest level since the U.S.-Iran war began. The driver is the Strait of Hormuz, which remains closed and has not been reopened despite a ceasefire agreement. U.S.-Iran negotiations have stalled in recent days, removing the expectation of a quick resolution and sending crude oil back toward pre-ceasefire levels. Brent crude — the international oil benchmark — is at $111/barrel. For auto transport carriers, diesel is the primary operating cost. Today's $5.46/gal national figure sets the highest fuel-driven floor on carrier rates since the conflict began.
Why is the Midwest seeing higher diesel than the national average? GasBuddy analyst Patrick De Haan flagged a power outage at a Northwest Indiana refinery and a separate issue at an Illinois plant as driving wholesale fuel approximately 40–50 cents above the April 7 high in Michigan, Wisconsin, Illinois, and Indiana. These regional refinery disruptions are separate from and compounding on top of the Iran-driven national diesel increase. The EIA weekly average understates current carrier fuel costs in the Midwest corridor this week.
Is snowbird migration really still affecting carrier availability? Yes. Snowbird migration — retirees returning north from Florida, Arizona, and the Carolinas — typically runs from late March through late May. Consumer vehicle shipments heading north out of vacation states are still actively competing with dealer loads for carrier capacity on northbound lanes, particularly FL→Great Lakes and FL→Northeast. This demand compression on northbound Southeast lanes will not normalize until late May. Dealers posting those routes should price to current market conditions, not to post-snowbird availability assumptions.
Which corridors are best for transport this week? Southeast (AL, FL, GA, MS, TN) and Mid-Atlantic (MD, NC, SC, VA, WV) have zero severe weather alerts and are not affected by the Midwest refinery disruptions pushing regional diesel higher. Per EIA data, Southeast diesel is $5.12/gal and Mid-Atlantic $5.23/gal — both below the national average. For loads delivering within or between these corridors, they are the cleanest operational option nationally. Note that northbound loads originating from the Southeast are still capacity-compressed by active snowbird demand.
Is the Central Plains flooding going to resolve soon? Some active Flood Warnings in Iowa and Illinois extend through May 3. The Central Plains went from 62/55 severe alerts last week to 85/80 this week — a further escalation rather than improvement. Four consecutive weeks of ground saturation means flood recession lags behind precipitation cessation by days to weeks depending on river drainage rates. Dealers with regular Central Plains delivery lanes should plan for ETA variability through at least the second week of May.
How long will diesel stay elevated? Economists predict diesel will remain elevated through at least the summer months and begin declining in fall, contingent on Hormuz resolution. Even if a deal is reached, the "rockets and feathers" dynamic means prices fall slowly after a crude spike. Dealers should treat today's diesel costs as the operating baseline for Q2 transport budgeting rather than a temporary spike to wait out.
What does the average vehicle price of $51,124 mean for transport decisions? At $51,124 average marketed price — up $1,044 year-over-year per Automotive News — the daily carrying cost of a delayed shipment is approximately $8–10 in direct floorplan interest and storage costs on a typical unit, more on premium inventory. The higher the per-unit value, the more the financial math favors pricing transport accurately to move quickly rather than underpaying to save on the shipment rate and absorbing multi-day booking delays as a result.
The transport market this week has more simultaneous pressure points than any week this spring: diesel at a war-era high and climbing, a regional Midwest fuel premium from refinery disruptions, 8 active Tornado Watches in South Central, 85 severe weather alerts in the Central Plains, snowbird demand still compressing northbound carrier capacity, and average vehicle values at $51,124. The dealers who know exactly which corridors are compounded and which are clear — and who price to today's diesel reality rather than last week's survey — will move inventory this week. The others will wait.
Post your first shipment on AHX in under 3 minutes. Real market pricing on your specific lane, 5,500+ vetted carriers, and live ELD tracking from the moment your vehicle is booked. Sign up free at autohaulerexchange.com
Diesel price data: EIA, week ending April 20, 2026; AAA via CBS News, April 28, 2026. Weather data: NOAA/NWS, April 28, 2026, 18:37 UTC. Industry data: Automotive News, Car Dealership Guy, CBS News, April 28, 2026. AHX platform data: internal.
.png)
