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05/16/2025 - Tornado Warned Storms through Sussex County, DE

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Storm Chase Log: Sussex County, Delaware

May 16, 2025 — Delmarva Frontal Boundary Supercell Chase

Chasers: Jaime Basilico and Kyle Brochet
Primary Chase Area: Sussex County, Delaware
Route Focus: Millsboro → Seaford/Laurel corridor → areas near the Delaware/Maryland border
Storm Mode: Isolated supercells ahead of an approaching frontal system
Primary Hazards Observed: Tornado-warned storm, rain-wrapped circulation, large hail potential, frequent lightning, heavy rain, and damaging winds

Event Overview

On May 16, 2025, Kyle Brochet and I chased a volatile severe weather setup across Sussex County, Delaware, as a frontal system pushed through the Delmarva Peninsula. Ahead of the front, isolated supercells developed in a warm, unstable environment, creating a localized but meaningful severe weather threat across southern Delaware and portions of the Eastern Shore of Maryland.

The chase began in Millsboro, Delaware, where we were immediately placed near a tornado-warned storm. SPC preliminary storm reports later included a 1.75-inch hail report just southeast of Millsboro, highlighting the intensity of the storm environment in that part of Sussex County. :contentReference[oaicite:0]{index=0}

Chase Narrative

We started the chase in Millsboro, already positioned close to the active storm as warnings began to fire across the region. The storm quickly became tornado-warned, forcing a fast decision on positioning. With the storm moving through southern Sussex County and showing signs of rotation, we shifted southwest toward the Seaford and Laurel corridor, trying to stay ahead of the worst precipitation while maintaining a safe view of the storm structure.

As the storm crossed the Delaware/Maryland border region, a small, rain-wrapped tornado occurred near the Maryland side of the line, north of the Salisbury region. Visibility was poor due to heavy rain wrapping around the circulation, making the tornado difficult to see visually from our position. This was a classic low-visibility Delmarva chase scenario: flat terrain, tree lines, heavy precipitation, and fast-moving storm motion all combined to limit viewing angles and increase the need for cautious positioning.

The National Weather Service later confirmed an EF-1 tornado associated with the May 16 event, beginning south-southeast of Rhodesdale, Maryland, before crossing into Sussex County, Delaware, and lifting near Bethel, Delaware. The tornado traveled roughly 11.4 miles, with estimated peak winds of 100–110 mph and a maximum width of about 600 yards. :contentReference[oaicite:1]{index=1}

Storm Structure and Conditions

The storm was difficult to observe at times because the main area of rotation was embedded within heavy rain. From our chase position, the most notable visual features were:

  • Rapidly changing storm structure as the cell interacted with the frontal environment
  • Heavy rain curtains wrapping around the area of strongest rotation
  • Poor visibility near the suspected circulation
  • Frequent lightning as the storm moved eastward
  • Strong outflow and turbulent sky conditions behind the main storm core

After repositioning east, we were able to get into a better area for viewing the storm’s backside and lightning activity. While the tornado itself was rain-wrapped and difficult to document visually, the storm produced impressive lightning as it continued across the Delmarva region.

Key Chase Takeaways

This chase was a strong reminder that Delmarva tornado events often do not look like classic Great Plains chase days. Instead of long-distance visibility and sculpted storm structure, this event featured a fast-moving, rain-wrapped circulation embedded within a messy convective environment.

The most important lessons from this chase were:

  1. Positioning matters even more in low-visibility terrain.
    Tree lines, heavy rain, and short road options can quickly limit escape routes and safe viewing angles.

  2. Rain-wrapped tornadoes are especially dangerous.
    The circulation can be nearly invisible until it is already close, requiring careful radar monitoring and conservative decision-making.

  3. Delmarva severe weather can escalate quickly.
    We began the chase in Millsboro and were almost immediately dealing with a tornado-warned storm.

  4. Lightning became the most visible post-tornado feature.
    After the circulation moved through, the storm continued to produce vivid lightning as it tracked eastward across the region.

Summary

The May 16, 2025 Sussex County storm chase with Kyle Brochet was a compact but intense Delmarva chase. What started in Millsboro quickly became a tornado-warned storm intercept, followed by a southwest reposition toward Seaford and the Delaware/Maryland border. A rain-wrapped tornado developed near the border region, and the chase later transitioned into observing the storm’s lightning and structure as it moved east.

While this was not a highly visible tornado chase, it was a valuable real-world example of the challenges that come with storm chasing on the Delmarva Peninsula: fast storm motion, poor visibility, rain-wrapped circulations, limited sightlines, and rapidly changing storm behavior.