A few isolated storms formed in south central Oklahoma near a stalled front on the evening of the 28th.
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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.
A few isolated storms formed in south central Oklahoma near a stalled front on the evening of the 28th.
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 Jul 28, 5:32 PM CST, 46 minutes earlier.
Area Forecast Discussion National Weather Service Norman OK 632 PM CDT Fri Jul 28 2017 .DISCUSSION... The 00Z aviation discussion follows.... && .AVIATION... A few thunderstorms have once again formed over parts of Oklahoma this afternoon, in an area of weak convergence at low levels of the atmosphere. Storms are expected to be scattered across Oklahoma and north Texas through the evening, gradually diminishing toward 06Z. The probability of storms occurring at any given TAF site is too low at this point to warrant inclusion in the TAFs. Scattered showers/thunderstorms will probably form yet again Saturday afternoon, but are expected to be confined to western/southwestern Oklahoma and adjacent parts of Texas. Again, the probability of storms at any given TAF site is too low to mention. Short-range models suggest the possibility of a repeat of this morning's patches of low clouds over north-central Oklahoma, but over a smaller area. Have included this in the KPNC TAF, but confidence is not particularly high that the clouds will actually form. Winds should change very little over the next 24 hours, generally steadily flowing from the northeast at about 10 kt, with occasional gusts around 15 kt during the day. Of course, winds will be highly variable in speed and direction in the vicinity of thunderstorms and even a few of the rain showers. CmS && .PREV DISCUSSION... /issued 252 PM CDT Fri Jul 28 2017/ DISCUSSION... Isolated to scattered showers and storms will be possible through this evening across portions of the fa. The highest chances are along the Red River near the front that sagged further south today. Strong winds and heavy downpours will be a concern with the strongest storms. The upper flow will be northerly over the weekend. Most of the area will remain dry this weekend except for some low rain chances in western parts of the fa. Models show convection developing on the High Plains that could move into far western portions of the fa. Models show the upper flow becoming more northwesterly next week with a shortwave moving across the region. This will cause rain chances to spread east across the area, but highest chances will remain over western and southern parts of the fa. Cooler temperatures are expected this weekend into next week with highs in the 80s and maybe even a few 70s in some locations. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 70 92 68 88 / 10 10 0 0 Hobart OK 73 94 70 92 / 30 20 10 20 Wichita Falls TX 75 96 72 93 / 30 20 10 10 Gage OK 68 91 67 86 / 20 20 20 30 Ponca City OK 67 89 66 84 / 10 10 0 0 Durant OK 74 92 70 89 / 30 20 0 0 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && 23/26/23
Hazardous Weather Outlook National Weather Service Norman OK 1158 AM CDT Fri Jul 28 2017 OKZ004>048-050>052-TXZ083>090-291015- 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- 1158 AM CDT Fri Jul 28 2017 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...This Afternoon and Tonight... .Thunderstorms... There is a Marginal Risk of severe thunderstorms this afternoon and evening across part of southern Oklahoma and western north Texas. The risk area is generally along and south of a line from Altus to Lawton to Sulphur and Atoka. The most likely time for severe storms will be from 4 pm through 9 pm. A cold front will continue to move slowly south across southern Oklahoma and western north Texas this afternoon and evening. Hot temperatures and rather high humidity along front will result in moderate instability. Deep layer shear will remain very weak, therefore the main weather hazard will be damaging outflow winds from the stronger storms. Wind gusts over 70 mph are possible. Areas of locally heavy rainfall will also be possible. Heat... Heat index values will approach 105 across parts of southern Oklahoma and western north Texas this afternoon. Cooler and drier air will filter into the region on Saturday. .DAYS TWO THROUGH SEVEN...Saturday through Thursday... .Thunderstorms... Thunderstorm chances will continue through early next week across portions of Oklahoma and western north Texas. The highest chances will be confined across western Oklahoma and adjacent parts of western north Texas, especially Sunday night into Monday. Heavy rainfall and strong, gusty winds will be possible with some thunderstorms. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 612 PM CDT FRI JUL 28 2017 OKZ030-282345- Pottawatomie OK- 612 PM CDT FRI JUL 28 2017 ...SIGNIFICANT WEATHER ADVISORY FOR northwestern Pottawatomie County Until 645 PM CDT... AT 611 PM CDT, a strong thunderstorm was located near Shawnee, moving south-southeast at 15 MPH. HAZARDS INCLUDE... Wind gusts to 50 MPH... LAT...LON 3540 9707 3543 9692 3518 9679 3516 9704 TIME...MOT...LOC 2311Z 346DEG 14KT 3535 9698 ..speg.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 639 PM CDT FRI JUL 28 2017 OKZ030-290015- Pottawatomie OK- 639 PM CDT FRI JUL 28 2017 ...SIGNIFICANT WEATHER ADVISORY FOR southwestern Pottawatomie County Until 715 PM CDT... AT 638 PM CDT, a strong thunderstorm was located over Brooksville, moving south-southeast at 20 MPH. HAZARDS INCLUDE... Wind gusts over 50 MPH... LAT...LON 3526 9704 3527 9691 3500 9682 3498 9704 TIME...MOT...LOC 2338Z 350DEG 19KT 3521 9697 ..speg.
The Norman radar (KTLX), 146 km away, was scanning. The volume nearest the first event began at 00:19 UTC.
1 thunderstorm wind. Local standard time, as filed.
Roof damage to the sundown trailer facility caused by a thunderstorm downburst.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2017Every state in 2017This day in weather historyWarnings in Oklahoma, July 2017
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: 716956.