Do not release an occupied Ottumwa concrete entry ramp for BEHR No. 6250 while fog moisture remains in the ramp texture or exposed concrete. The October 5 river-fog report makes a later site inspection sensible; it does not establish that this ramp is dry. First inspect adhesion and drainage, then check the exact coating sheet and reserve enough time for two coats and a safe, clearly marked alternate resident route.
Why the October 5 fog changes the call
The NWS Des Moines discussion issued at 4:02 a.m. CDT October 5 describes river fog visible on satellite and confirmed by cameras at Ottumwa. It also expects drying later as winds and daytime mixing increase. That regional observation is a dispatch trigger, not a measurement of a particular entrance. A low concrete ramp beside landscaping may stay damp after nearby pavement looks dry. Photograph the tread, side edges and any shaded low spot before deciding.
This is a previously painted pedestrian ramp serving an HOA building. Its failure risk has two parts: weak bond over damp or peeling paint, and residents using a wet or unfinished walking surface. Inspect the old coating, puddling, cracks, slope and any exposed concrete. If drainage or slab movement needs repair, obtain that scope before promising a coating date.
Apply the No. 6250 sheet to this ramp
The October 2024 BEHR No. 6250 sheet lists ramps and steps as uses, but still requires sound preparation. It says to remove failing paint, dull glossy paint, clean and spot-etch exposed concrete, remove residue and let the surface dry. For concrete it recommends No. 880 bonding primer followed by two coats of No. 6250. Its stated air and surface application range is 50–90°F; the 4–6 hour recoat example assumes 77°F and 50% relative humidity. A cool or damp ramp can take longer. These are No. 6250 instructions only, not a general concrete-paint rule.
The same sheet cautions that painted surfaces may become slippery when wet. A textured product does not certify this particular ramp as safe or accessible. The HOA should assess its applicable access requirements and arrange an alternate route before closing the entrance. Do not reopen it on the nominal touch-dry time alone; use the current label, actual film condition and the manager's access plan.
HOA decision record
- Log the weather trigger.Save the dated NWS discussion, then mark the forecast separately from ramp observations.
- Inspect the assembly.Photograph low spots, shade, old-film adhesion, bare concrete and drainage defects. Escalate slab or route problems.
- Verify the coating.Identify the can and current sheet; record concrete dryness and measured air and surface temperatures at application.
- Plan both coats.Use the sheet's preparation and compatible primer, allow actual recoat time, and protect the work from traffic and later dew.
- Document access.Record closure, alternate entrance, inspection photos and reopening criteria in the Kwelby crew job record for the manager.
A fog report cannot certify the ramp
Kwelby's free address checker helps plan an inspection time but cannot measure concrete moisture, old-film adhesion or traction. Our method keeps the field check separate. The wood porch-step guide covers a different substrate and enamel; the overnight drying guide explains why a second coat and evening exposure need their own window.
Release only the measured, protected work
For this Ottumwa ramp, use the fog report to schedule a return check. Coat only when preparation, actual dryness and No. 6250 conditions pass, and keep residents on a documented alternate route until the finished ramp is ready for use.
Sources and limits
NWS Des Moines area forecast discussion, issued October 5, 2026 at 4:02 a.m. CDT, archived by Iowa Environmental Mesonet; BEHR PREMIUM Porch & Patio Anti-Slip Floor Paint No. 6250 technical data sheet, revised October 2024, linked from the manufacturer product page. Confirm actual SKU and current sheet before application.
Read our editorial and forecast method →