Inspired by Tygart Media Storm Tracker — Storm Updates: Oklahoma and High Plains Slight Risk — Sunday, September 20, 2026 — https://tygartmedia.com/storm-updates-september-20-2026-oklahoma-high-plains-slight-risk/.
The 2000 UTC Day 1 outlook stayed on the morning track: Slight Risk over central and eastern Oklahoma and from eastern Colorado into far western Kansas. As of 2013 UTC no convective watch is valid. What changed since the morning companion is the mesoscale paper and the local polygons — Mesoscale Discussion 2316 (watch possible, 60 percent) over northeast and eastern Colorado, far western Kansas, and southwest Nebraska; Severe Thunderstorm Warnings already fired in Dundy and Chase Counties, Nebraska; a standalone Flash Flood Warning over southwestern Suwannee County, Florida; and a new Des Plaines River Flood Warning near Russell, Illinois. Midwest and Ohio Valley water from Saturday night is still leftover tickets, not a new Moderate.
Owner / principal: deploy or hold?
Hold the regional convoy. MD 2316 is a watch-possible discussion, not a watch. Cash stays in the branches that already sit on the two Slight contours and on last night’s water. Approve overtime for Tulsa, Muskogee, Shawnee, and Ardmore if the 55–65 mph gust language verifies after dark. Approve a small hail kit for the Palmer Divide, Lamar, far-western Kansas, and the Dundy–Chase warned counties — spot jobs, not a CAT stack. Do not buy a second extractor fleet for a WPC Slight that was trimmed on the northern Illinois and southern Iowa edge at 16Z.
Saturday’s closed Watches 670–672 already spent tarp and glass across the Texas Panhandle, western Oklahoma, and west-central Kansas. Reorder what those crews used. Do not pull dryers off occupied Iowa or Ohio River jobs because a Nebraska warning just posted. If you have one extra Sunday crew, park it on the license map that matches a live warning county, not on the outlook color.
GM / ops: board and on-call
Four columns this afternoon, not three. (1) Aftermath — Saturday watch wind and hail, Iowa-to-Ohio Valley flood polygons that expired this morning. (2) Live Slight, no watch — central and eastern Oklahoma wind-hail through evening. (3) Live MD / warned cells — High Plains hail under MD 2316 plus Dundy and Chase SVR text. (4) Standalone water — Suwannee County, Florida, and the Des Plaines gauge at Russell.
Oklahoma branches stay on-call through evening initiation. High Plains branches cover the MD window and any watch that actually issues. Midwest and Ohio Valley stay on the water board until meters clear. Florida is a local North Florida desk only — do not treat it as the national pulse. Confirm the county product before you move a pump from Cedar Rapids to Tulsa or a tarp crew from Lawton to Imperial, Nebraska.
Project manager: first four hours
Warned Nebraska cells and leftover Midwest interiors first. Safety walk, utilities, then photos: four elevations, roof from the ground, interior wet rooms with a scale in frame, contents in place. Occupied homes get extract and a temporary cover before rebuild talk. Vacant commercial on a Sunday still needs a written access plan — do not assume keys because a warning posted.
Order of work is local. High Plains this window is hail and glass before extract unless rain is still coming through the hole. Oklahoma, if it verifies after dark, is tarp and tree-on-structure; hold the steep-slope roof if you cannot light it. Iowa, Ohio River, West Virginia, Washington County Pennsylvania, and now the Des Plaines gauge already started the mold clock this morning — extract first, then dry. Do not open walls in the first four hours. Document the stop for the estimator.
Estimator: wind vs water vs hail
Keep three files. High Plains and the Dundy–Chase warnings are hail first — TM source language is 1 to 2.5 inches on the MD, golf-ball tags on the local warnings — so test squares, slope-by-slope photos, and soft-metal on HVAC. Do not write a whole-roof replace from a driveway shot of one bruised shingle. Central and eastern Oklahoma is wind if 55–65 mph gusts verify: lifted courses, trees into roofs, broken storefront glass. Midwest and Florida leftovers are water: category on the meter and the source, not on the outlook map.
Likely supplements: hidden decking on hail slopes, additional elevations after daylight, contents pack-out on occupied leftover-water homes, after-hours commercial access in Tulsa and on High Plains farm shops. What not to price from a phone photo: hail hit count, category of standing water, or a warehouse membrane tear. Saturday watch text and this afternoon’s SVR text are event evidence, not line items.
Technician: meter, PPE, power
Category is still a field call. Wind-driven rain through an Oklahoma roof is not automatically Category 3. Overland flood, river overflow, and sewage backup on the Iowa–Ohio Valley leftover and on Suwannee still are. Meter the first wet room, photograph the reading next to a labeled wall, and stop. Do not walk those boots onto a clean occupied hail job the same shift.
Treat panels as live until the utility or electrician clears them. Tarps go on in remaining daylight on the High Plains warned counties. If Oklahoma initiation is after dark, hold the steep roof and run interior extract only where power is confirmed. Flash-flood polygons — including the Florida standalone — are turn-around, don’t-drown counties until the product expires and the crossing is visible.
Business development: who to call
Call after the cell, not before the watch that has not issued. Commercial managers in Tulsa, Broken Arrow, Muskogee, and Shawnee this evening if wind verifies. High Plains managers and farm-shop owners in the MD 2316 footprint and in Dundy–Chase after the warning expires. Midwest and Ohio Valley: adjusters and apartment GMs already sitting on Saturday-night water, plus anyone on the new Des Plaines Flood Warning. Suwannee is a local Florida call list only. Do not blast last night’s closed Kansas watch counties. The watch is closed.
Commercial vs residential — this event only
Oklahoma commercial is envelope and Sunday lockout: warehouse membrane, RTUs, glass, after-hours access. Residential there is steep-slope shingles, trees, and contents. High Plains commercial is farm shops, metal roofs, and vehicles; residential is shingles, skylights, and siding from a few supercells — not a line. Midwest leftover commercial is slab and racking plus a river gauge that just went into minor flood. Residential leftover is occupied ALE and the mold clock. Florida commercial vs residential splits on low-water crossings and slab homes in one county. Do not mix those boards on one crew sheet.
Pulse back to source
Weather pulse and the next official convective update live on Tygart Media: Storm Updates: Oklahoma and High Plains Slight Risk — Sunday, September 20, 2026. Morning companion stays up: Storm Pulse for Operators: Oklahoma–High Plains Slight — Sunday, September 20, 2026 (Morning). Operator deep reads that fit this desk: Storm Damage Restoration: The Complete Professional Guide and Wind and Hail Damage: Scope Development.
Informational only — not an official National Weather Service warning. Verify the county product at weather.gov and the convective outlook at spc.noaa.gov before you roll. Turn around, don’t drown.