Splitting One Hail Event Into Canvass, Recheck, and Follow-Up Zones

Start with the highest-size core, not the whole footprint

One hail event rarely deserves one field plan. A more useful split starts at the largest hail pocket and then steps outward by size, roof type, and access. In late-period Plains activity, that difference showed up fast in Clarendon, Claude, and Lakeview, TX, where 4.5-inch hail sat in the same broad storm family as Morton, TX and Wellington, KS, both near 4.0 inches.

For a contractor, that mix is not a single route. It is a tiered territory. The first pass should stay tight around the 4.5-inch core. The second pass should catch the surrounding 4.0-inch band. The third should hold the outer addresses for later review once the first inspections tell you which roof systems actually took the hit.

NOAA storm reports and local spotter notes give the first size anchors. Radar-derived hail paths help you see where the core tracked between towns. Use both, but do not treat the whole warning area as equal. It is not.

Build three zones from one storm track

1) Canvass zone

Put your canvass zone inside the highest-confidence hail track. This is where the size and timing line up cleanest. In this period, that means the 4.5-inch corridor around Clarendon, Claude, and Lakeview.

Keep the canvass zone narrow. Use it for immediate door-to-door work, lift checks, and roof access requests. Send the fastest team here first. The job is not to cover everything. The job is to secure the roofs most likely to show impact before the trail goes stale.

Practical filters for the canvass zone:

• Largest reported hail size in the event
• Shortest distance from the radar-derived hail core
• Dense roof clusters with easy street access
• Recent construction, three-tab, and older laminate roofs near the core

If one town sits directly in the strongest part of the hail path, keep it in the first pass even if another nearby town has more total addresses. Size and placement outrank volume.

2) Recheck zone

The recheck zone belongs just outside the first core. This is where reports often soften from 4.5 inches to around 4.0 inches, or where the radar track continues but the ground reports are thinner. Morton and Wellington fit that middle band in this period.

Use the recheck zone for roofs that need a second look after the first crew returns. That includes:

• Marginal slopes that may hide impact
• Metal and synthetics that need closer surface review
• Homes with no immediate exterior staining but nearby tree and soft-surface indicators
• Properties with access issues that delayed first contact

Do not waste first-pass labor here if the core still has untouched roofs. Recheck zones should absorb the slack after the canvass zone is handled. The goal is to confirm or dismiss borderline losses before they turn into unproductive revisits.

3) Follow-up zone

The follow-up zone sits outside the clean hail core or in the outer edge of the warning area where hail was present but less concentrated. This is where crews should expect lower conversion and more selective inspections.

The follow-up zone works best for:

• HOA communities or gated streets that require scheduling
• Roofs already under another vendor’s review
• Areas where NOAA reports show hail but the radar path is less precise
• Homes that need thermal, slope, or attic confirmation before a field appointment

This zone should not get first-day pressure unless the rest of the territory is already covered. It is where you keep names, not where you burn time.

Use hail size bands to set crew priority

A clean territory split starts with size bands. For this event pattern, 4.5-inch reports belong at the front. 4.0-inch reports follow. Anything outside that band moves into later review unless another field signal pushes it forward.

That is not a rule about damage certainty. It is a routing rule.

A simple structure works:

• 4.5-inch core: same-day canvass and inspection requests
• 4.0-inch ring: next-day recheck and priority estimate slots
• Outer hail presence: follow-up list and deferred contact

The size gap between 4.5 and 4.0 looks small on paper. In the field, it often marks the difference between visible strike density and spotty roof impact. That difference matters when crews are limited and the route has to move.

Match zone type to roof stock

Not every neighborhood inside the same event deserves the same treatment. Roof age, pitch, and material change how fast a team can clear a block.

Use canvass zones first in areas with:

• Older asphalt roofs
• Mixed roof ages on the same block
• Open sightlines from the street
• Recent storm history that may have weakened shingles

Use recheck zones where:

• Metal roofs may hide cosmetic and functional impact
• Steeper slopes slow inspection pace
• Detached structures are spread out
• Mature tree cover blocks quick visual review

Use follow-up zones for compact subdivisions where the hail size was reported but the roof mix is newer and the first pass will need more confirmation before assignment.

That approach keeps your best crews on the roofs most likely to produce clean next steps.

Let the storm track, not town names, set the boundary

Town names help a contractor talk about the route. They do not define the route.

Clarendon, Claude, and Lakeview may sit on the strongest side of the event, while Morton and Wellington belong in the next tier. But the actual zone line should follow the hail path, not the city limits. A town can sit partly inside the core and partly in the recheck band. Treat the boundary as a working line, not a political one.

Check three things before you draw the final zone:

1. Where the hail core first touched down
2. Where the largest size reports clustered
3. Where the path began to weaken or fragment

If those three markers line up, your canvass zone is likely sound. If they do not, split again. One storm can easily produce two tight work pockets and one broad low-priority ring.

Set the handoff between zones before crews roll

The common failure is not bad coverage. It is bad handoff.

A canvass crew finishes a core block and hands everything else to an overstuffed follow-up list. The result is delayed inspections, duplicated knocks, and missed roofs in the transition area. A better structure uses written zone rules before the first truck leaves.

Keep these handoff rules simple:

• Canvass team closes only the highest-size core
• Recheck team inherits marginal streets on the edge of the core
• Follow-up team takes the outer hail presence and late-access properties
• Any new spotter-verified report inside the core bumps that street back up

That keeps the route dynamic without turning it into a free-for-all.

A workable split for this event pattern

For the Clarendon–Claude–Lakeview core and the Morton–Wellington outer band, a practical split looks like this:

• Canvass zone: 4.5-inch core around the strongest hail pocket
• Recheck zone: the adjacent 4.0-inch ring and the first boundary streets beyond the core
• Follow-up zone: the outer hail presence, delayed access, and lower-confidence addresses

That layout keeps the first crew close to the strongest hail while preserving the next two layers for later work. It also gives sales and inspection teams a cleaner way to sort calls, dispatch, and revisit timing.

Final note for routing managers

One hail event can carry three different field jobs. The mistake is treating all of them as equal. A tight canvass zone, a disciplined recheck zone, and a patient follow-up zone create cleaner routes and fewer wasted knocks.

Use NOAA reports for the size anchors. Use radar-derived tracking for the path. Use local roof conditions to decide where each zone starts and ends. Then keep the zones separate until the field tells you otherwise.