Night-of Storm Prep for Contractors: 6:00 AM Start Checklist

When a severe thunderstorm crosses your local market overnight, a roofing contractor must stage crews, verify lead data, and organize equipment for a 6:00 AM launch.

This post gives a tested, itemized night-of checklist. Use it to turn overnight storm signals into a safe, prioritized morning response.

Immediate data pulls (do these before 04:00)

• Pull the last 90 minutes of NEXRAD reflectivity and dual-polarization products. Save the latest scan times and note the strongest reflectivity cores.
• Extract NEXRAD hail-detection hits and map them to streets. Flag clusters of three or more radar-derived hail detections within a 1-mile corridor.
• Download any local storm reports issued overnight. Mark reports of roof or siding damage and hail sizes by location.
• Fetch the NWS warning area polygon files for your county at the latest issuance. Do not treat the polygon as roof-level precision. Use it for area prioritization only.
• Run a lightning-density overlay or strike layer if available. Concentrated lightning plus high reflectivity usually indicates cores worth prioritizing.

Actionable takeaway: have a radar map and a list of 200–500 candidate addresses by 04:00. Prioritize by co-location of radar hail hits and local storm reports.

Crew roles and preassignments

• Assign in writing before midnight: team lead, estimator, safety lead, driver, and photo technician. One person handles mapping and navigation per crew.
• Set crew sizes to match market density. Typical urban crew: 3 people. Typical suburban/rural crew: 2–3 people.
• Pre-assign first 20 addresses per crew. Include expected drive time windows. Keep routes under 90 minutes for the first pass.
• Confirm availability of subcontractors and adjust zones if travel exceeds 45 minutes each way.

Actionable takeaway: publish a one-page roster with names, phone numbers, vehicles, and assigned zones by 03:00.

Equipment and vehicle checklist (night pack)

• Ladder kit: 2 extension ladders per truck, ladder straps, stabilizers.
• Tarps and protection: 3 tarps (6x10) per crew, assorted nails and screw sets in labeled bags.
• Photography: phone with at least two spare batteries or a bank with 10,000 mAh. Carry a handheld scale reference (1-inch coin or 1" reference card).
• Drones: 2 fully charged batteries, charger, extra SD card if you intend aerial captures. Verify local flight restrictions and homeowner consent.
• PPE: helmets, non-slip boots, eye protection, gloves, and a harness per roof worker when a climb is required.
• Power and lighting: one LED work light per crew, one jumper pack for vehicle electronics.

Actionable takeaway: load trucks the night before and seal a checklist bag for each crew. Count items twice.

Route prep and prioritization logic

• Tier 1: Addresses inside the radar-derived hail corridor with a local storm report within 1 mile. These get first-pass inspections.
• Tier 2: Addresses inside the NWS warning area but outside the radar hail corridor. These are secondary canvass targets.
• Tier 3: Adjacent addresses with high-value roof types or flagged by prior market intel.
• Export Tier 1 as a 20–40 address route per crew. Keep a 15% buffer for re-routes when traffic or road closures appear in the morning.

Actionable takeaway: publish the Tier 1 list to crews and pre-cache offline basemaps for each route.

Documentation protocol for morning inspections

• Photo minimums per property: wide street-facing shot, rooftop overview, close-up of any impact or missing granules. Use scale reference on every close-up.
• Metadata required: GPS coordinates, photo timestamp, inspector initials. Save photos to a folder named by market-date-crew.
• Note wind, wetness, and any concurrent hazards on the form. Record any homeowner statements and permission to photograph.

Actionable takeaway: require at least 3 photos per property. Log them in a consistent folder structure before moving to the next address.

Safety and operational red lines

• Do not start work inside an active NWS warning area. If a warning polygon still covers a planned route at 05:30, delay until the warning expires and conditions stabilize.
• Do not access roofs with visible power lines down or structural collapse risk. Flag and document from the ground.
• If lightning frequency remains high inside your work radius within 30 minutes of launch, postpone exterior work until strikes decline.

Actionable takeaway: give the safety lead explicit authority to pause or redirect teams without penalty.

Tech hygiene and offline prep

• Pre-download mapping tiles for each route. Cellular load will be high in the morning.
• Export address lists as CSV/KML and load them into the navigation app. Keep a printed map for each driver as backup.
• Sync photo folders and contact lists to cloud storage by 05:30. Verify at least one team has a personal hotspot and a spare data plan.

Actionable takeaway: test one navigation route from the truck at 05:45 to verify offline maps and navigation turn-by-turn.

Night-to-morning timeline (example)

• 00:30–03:00: Initial radar and local report harvest; create Tier 1 list.
• 03:00–04:00: Confirm crew availability, finalize pre-assignments, and stage trucks.
• 04:00–05:00: Final radar refresh, map export, and gear checks.
• 05:15–05:45: Load trucks, pre-brief crews, confirm safety protocol.
• 06:00: Depart to first staging points and begin door-knock/inspection pass.

Actionable takeaway: use the timeline as a template and shorten or lengthen windows by market size and available daylight.

Closing checklist (three final items)

• Confirm at least one NOAA radar scan within 60 minutes of your start time matches the overnight hail corridor.
• Confirm all crews have working cameras and two power sources per essential device.
• Confirm safety lead visibility of the morning warning-area status and local storm reports.

Follow this checklist and you will arrive at 6:00 AM with prioritized leads, functioning equipment, and a clear safety plan. Keep records tied to radar timestamps and local storm reports for post-shift triage and estimating.