Summer Storm Safety and High-Visibility Rainwear for Outdoor Crews

A sudden summer storm can leave supervisors making two decisions at once: Does the job need to stop, and will the crew remain visible if it continues? Around traffic, equipment, and large outdoor sites, neither decision should be left until the rain starts.

This article explains how to set clear stop-work and shelter procedures, then choose high-visibility rainwear for conditions where work can safely continue. The goal is a response crews can follow without improvising as the weather changes.

Key Takeaways

• Summer storm plans should define who monitors weather, who can stop work, where crews shelter, and who authorizes the restart.
• Storm-response lead time should include task shutdown, crew accountability, travel to shelter, and a reasonable contingency.
• The rain jacket becomes the visible outer garment when it covers a worker’s vest, so its classification and design need to match the work.

When Should Outdoor Crews Stop Work During a Summer Storm?

A sudden downpour doesn’t automatically shut down every outdoor job. Thunder, lightning, rising water, strong winds, or another uncontrolled condition might.

The right response depends on the task and how the weather changes the work. Light rain may be manageable for some ground-level activities. The same conditions could make rooftop access, temporary electrical work, or equipment movement unacceptable.

Crews also need enough warning to act before conditions deteriorate. OSHA and NOAA’s lightning guidance notes that lightning can strike outside the area of heaviest rainfall. It also advises against starting tasks that cannot be stopped quickly when thunderstorms approach.

Supervisors need clear instructions for what to do as weather conditions change. A simple three-part framework can help supervisors make the call:

• Continue working: Work may continue when rain-related hazards remain controlled. Visibility, footing, equipment operation, and electrical exposure should still be acceptable, and workers should have suitable wet-weather PPE.
• Stop and secure the work: Pause the task when conditions are getting worse or the crew may not have enough time to reach shelter. Secure equipment, account for workers, and prepare to leave the area.
• Move to shelter: Send crews to a verified shelter when thunder is heard or another defined trigger is reached, such as rising water or dangerous winds.

Define those triggers before the shift. The plan should also identify who can stop the work, where crews will go, and how supervisors will account for everyone.

How Should Employers Prepare Crews for Sudden Summer Storms?

A weather app can warn that a storm is approaching. It cannot decide who shuts down a lane closure, how equipment will be secured, or whether every subcontractor received the warning.

Assign someone to monitor conditions during outdoor work, and give supervisors and workers clear stop-work authority. OSHA and NOAA recommend a lightning protocol that addresses warnings, shelters, response times, work suspension, restart procedures, communication, accountability, and training.

The timing of that response deserves close attention. Crews need enough lead time to stop the task safely and reach shelter, not simply enough time to walk to the nearest truck. A road crew, for example, may need several minutes to secure equipment and maintain traffic control before leaving the work area.

The destination also needs to be confirmed in advance. The National Weather Service identifies appropriate lightning shelter as a substantial building or an enclosed, metal-topped vehicle with the windows up. Small sheds, open vehicles, and rain shelters do not qualify.

The procedure should also control the return to work. The National Weather Service advises crews to wait at least 30 minutes after the last thunder or lightning before going back outside. Assign one person to track that period and communicate the all-clear.

When conditions allow the work to continue, the next question is whether crews have the right rainwear for the job.

How to Select High-Visibility Rainwear

When workers pull rain jackets over their vests, those jackets become the garments drivers and equipment operators see. A bright color alone does not confirm that the outer layer meets the requirements of the job.

ANSI/ISEA 107-2020 uses two labels to describe a finished high-visibility garment. Type identifies the work environment it is designed for, while Performance Class indicates how much high-visibility material the garment includes and how that material is arranged.

For workers inside roadway temporary traffic control zones, the MUTCD requires Performance Class 2 or 3 apparel, or an equivalent revision. The appropriate class is selected by a person designated by the employer. Rain alone does not create a universal Class 3 requirement.

Once the classification is confirmed, you can determine whether the garment will work in the field with a few targeted questions:

• Weather protection: Is it waterproof or water-resistant? Are the seams, closures, cuffs, and hood designed for the expected exposure?
• Wearability: Does it provide enough ventilation and range of motion for warm or physically active work?
• PPE compatibility: Does it fit with hard hats, fall-protection equipment, radios, gloves, tools, and boots? OSHA’s construction PPE rule requires properly fitting PPE.
• Work access: Can workers reach controls, identification, communication equipment, and harness connection points without opening or modifying the garment?

Those needs will vary by role. A flagger, surveyor, equipment operator, and worker using fall protection may not perform well in the same jacket design. Before selecting one style across the workforce, issue samples and have workers test them during the movements and tasks they actually perform.

Before making a selection, buyers should review the garment label, Type and Performance Class. Classification, however, is only part of the evaluation. The reflective material also needs to suit wet-weather conditions.

How Prismatic Reflectivity Performs in Wet Conditions

High-visibility rainwear uses two types of material to help workers stand out in different conditions. Fluorescent background material improves contrast during the day. Retroreflective material returns light toward its source, such as a vehicle’s headlights.

Wet weather can change how that reflective material performs. Glass bead material relies on light passing through tiny glass spheres and reflecting back toward the source. When water covers the surface, it can disrupt that light path and reduce the amount of light returned.

Prismatic material works differently. It uses engineered microprisms to redirect light, and some products use sealed or metallized construction that helps protect the reflective surface from moisture. That can help the material maintain stronger reflectivity in rain.

ORALITE GP440, for example, is a sew-on prismatic trim with strong performance in wet conditions and a good option for high-visibility apparel. Performance can still vary by material and garment, so buyers should confirm exactly what reflective tape is being used before making a selection.

Find the Right Kishigo Rainwear for Your Crew

Rainwear only works when crews can actually work in it. A jacket may be waterproof and highly visible, but it can still create problems if it traps heat, restricts movement, covers access to a radio, or interferes with fall protection.

Kishigo gives safety teams more flexibility to match the garment to the job instead of issuing one generic option to everyone. Depending on the product, buyers can look for:

• ORALITE prismatic reflective material for crews working around rain, spray, traffic, low light, and moving equipment
• Seam-sealed jackets, pants, bibs, and long coats for different levels and durations of wet-weather exposure
• Vented backs, mesh liners, and adjustable cuffs for warm, humid, or physically demanding work
• D-ring access, radio pockets, stored hoods, and boot adjustments for workers who still need full access to PPE and field equipment
• Type R Performance Class 3 garments and Class E supplemental options for jobs with specific visibility requirements

The best option depends on the work being performed, the conditions crews face, and the equipment they already use. Start with those needs, then compare Kishigo rainwear by Performance Class, reflective material, coverage, ventilation, fit, and access features.

Explore Kishigo’s high-visibility rainwear and find the options that fit the way your crews actually work.

Frequently Asked Questions

Does OSHA require employers to provide or pay for rainwear?

OSHA’s PPE payment rules exclude ordinary raincoats used solely for weather protection. That exception doesn’t automatically resolve rainwear that also functions as required high-visibility or task-specific PPE. Review the applicable standard, hazard assessment, contract requirements, and state-plan rules.

Is Class 3 rainwear required whenever it rains?

No. Rain doesn’t create a universal Class 3 requirement. The required apparel depends on the work environment and applicable rules. Within roadway TTC zones, the MUTCD requires Class 2 or 3 apparel and advises Class 3 for nighttime flagger activity. 

Does prismatic tape make a garment ANSI/ISEA compliant?

No. Compliant reflective material is one component. ANSI/ISEA 107 applies to the finished garment’s design, visible-material area, configuration, testing, and labeling. Verify the garment label and Declaration of Conformity.

What is the difference between waterproof and water-resistant rainwear?

Waterproof rainwear is designed to prevent water penetration under specified conditions. Water-resistant material may not suit prolonged or heavy rain. Review manufacturer specifications, seam construction, closures, ventilation, and intended use.

How should wet high-visibility rainwear be stored?

Inspect the garment, clean it according to the manufacturer’s instructions, and let it dry before storage. Avoid returning damp, contaminated, or damaged garments to a closed bin. Store rainwear where the correct sizes remain accessible to the crew.