Warm, dry and breezy conditions lead to a fire start and spread across portions of Logan County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OUN wrote it up.
Warm, dry and breezy conditions lead to a fire start and spread across portions of Logan County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before the first event at Apr 17, 11:05 AM CST, 25 minutes earlier.
Area Forecast Discussion National Weather Service Norman OK 1205 PM CDT Mon Apr 17 2023 ...New AVIATION... .SHORT TERM... (Today and tonight) Issued at 238 AM CDT Mon Apr 17 2023 Expect winds to quickly increase from the southwest late this morning through early this afternoon as a lee trough deepens. Temperatures will also quickly climb within this flow and mid 80 highs will be common within the surface trough across northwestern OK. A few high based showers and thunderstorms could develop with aid from a subtle mid level shortwave trough moving through/under the upper ridge axis late today through this evening initially from western and southwestern OK to northern OK overnight. Some strong wind gusts will be possible before sunset if they can manage to maintain into our area. A low level jet and returning low level moisture will keep temps on the warm side for early Tuesday morning. && .LONG TERM... (Tuesday through Sunday) Issued at 238 AM CDT Mon Apr 17 2023 Low level moisture advection will continue throughout Tuesday afternoon and a dryline will sharpen near the western TX/OK border. Another subtle mid level perturbation should near this area around peak heating but with relatively weak mid to upper flow. However, if a storm or two can manage to develop along the dryline overcoming CIN it may become strong to severe with a threat of damaging wind gusts given inverted V profiles/high bases and perhaps severe hail considering moderate instability and just enough effective shear in place. Storms should dissipate a couple hours after sunset if they develop. The boundary layer will continue to moisten across most of the area Tuesday night into Wednesday morning as a stronger LLJ develops. In addition, saturation and subtle isentropic ascent may result in some drizzle developing along and east of I-35 by Wednesday morning. There could be some showers and thunderstorms across far SE OK as well. As mixing occurs through Wed, the dryline will surge eastward to near Highway 81 with west to southwest surface winds extending from NM, to the panhandles and western OK. Very warm afternoon temps are expected within this downslope flow, especially across southwestern OK where low to mid 90s appear likely. Stronger mid to upper diverging flow and a more substantial shortwave trough are expected Wed afternoon by peak heating and shortly thereafter. Again, at least isolated severe thunderstorms will be possible from late afternoon through early evening with a threat of large hail and damaging winds. Isolated thunderstorm could continue overnight as the dryline retreats. Late Wed night into early Thursday morning, a broad cyclone is expected over the north central CONUS and a Pacific cold front should make its way southward to around the I-44 corridor near sunrise but stall somewhere near SE OK. Additional shower and thunderstorm chances will be possible there throughout Thursday. Confidence in where the front will end up Thursday is fairly low right now, as most solutions had it surging further south yesterday. If the current forecast does verify, one would suspect another severe threat across far SE OK Thursday afternoon and evening. More uncertainty arrives late Thursday into Friday morning. A warm front could surge north across the Red River as the main upper trough axis enters the Plains resulting in more shower and thunderstorm chances initially across east central and southeastern OK, and then low chances of showers throughout Friday behind a strong cold front accompanying ascent with the upper trough. All this being said, confidence is fairly high for it to be much colder by next weekend as the deep cyclone moves into the Midwestern states. && .AVIATION... (18Z TAFS) Issued at 1001 AM CDT Mon Apr 17 2023 VFR conditions are expected until 181800. Gusty southwest winds are expected through the period with LLWS at most TAF sites Tuesday morning. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 79 58 80 63 / 0 10 10 10 Hobart OK 81 54 83 60 / 0 10 20 20 Wichita Falls TX 82 56 81 64 / 0 10 10 10 Gage OK 84 53 87 52 / 10 20 10 10 Ponca City OK 81 55 84 63 / 0 20 10 10 Durant OK 79 53 77 63 / 0 0 10 20 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && SHORT TERM...03 LONG TERM....03 AVIATION...09
Hazardous Weather Outlook National Weather Service Norman OK 347 AM CDT Mon Apr 17 2023 OKZ004>048-050>052-TXZ083>090-180900- Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain- Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson- Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton- Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman- Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay- 347 AM CDT Mon Apr 17 2023 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Today and Tonight... .Thunderstorms... Very low thunderstorm chances are expected across far western and northwestern Oklahoma late this afternoon through tonight. Strong wind gusts could accompany any thunderstorms that manage to develop. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... .Thunderstorms... By Tuesday afternoon and evening, isolated strong to severe thunderstorms may develop near a dryline across far western Oklahoma and north Texas, posing a damaging wind and hail threat. Isolated severe thunderstorms will then be possible Wednesday afternoon and evening along a dryline mainly east of Highway 81. Large hail and damaging wind gusts will be the main hazards Wednesday. The threat of severe weather could continue Thursday across far southeastern Oklahoma. .Fire Weather... Critical fire weather conditions will be possible Wednesday across western Oklahoma and adjacent portions of north Texas. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
The national radar mosaic for the moment the first event began.
1 wildfire. Local standard time, as filed.
The 'Waterloo Road Fire' spread over 339 acres. This fire may have impacted portions of far northern Oklahoma County, just south of Waterloo Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2023Every state in 2023This day in weather historyWarnings in Oklahoma, April 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1092955.