A weak shortwave behind a departing trough sparked thunderstorms that produced scattered wind damage on the 18th.
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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 weak shortwave behind a departing trough sparked thunderstorms that produced scattered wind damage on the 18th.
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 18, 1:35 PM CST, 2 hours 55 minutes earlier.
Area Forecast Discussion National Weather Service Norman OK 235 PM CDT Thu Apr 18 2019 .DISCUSSION... The main forecast impact will be chances of showers and storms early next week. Cooler temperatures will continue through Friday as colder air continues to fill in behind the cold front. This will quickly move out Saturday, being replaced by ridging and southerly flow. This will result in some rapid warming. Temperatures will peak on Sunday with downslope flow. Trended toward a MOS blend for Sunday's maximum temperatures. A shortwave is expected to move through the central plains early Sunday, though how far south its effects will be seen is still somewhat uncertain. The GFS maintains a more southerly track, bringing a chance of showers and storms early in the day. However, given the northward trend of this feature among most models, will leave mentionable POPs out for now. A much more substantial wave will follow Monday night into Tuesday, bringing widespread rain chances both Tuesday and Wednesday. The ECMWF cuts the low off early allowing rain chances to linger through the end of the week, while the GFS moves the system through by Thursday. Will include some low rain chances for this later period. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 45 65 45 77 / 10 0 0 0 Hobart OK 44 67 45 80 / 0 0 0 0 Wichita Falls TX 47 68 45 81 / 10 0 0 0 Gage OK 39 70 45 85 / 0 0 0 0 Ponca City OK 44 66 42 78 / 10 0 0 0 Durant OK 47 65 44 75 / 20 0 0 0 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && 23/14
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 421 PM CDT Thu Apr 18 2019 OKZ004>048-050>052-TXZ083>090-192130- 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- 421 PM CDT Thu Apr 18 2019 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through Tonight. Thunderstorms... Scattered showers and some storms will remain possible into this evening across portions of Oklahoma and north Texas. Small hail and gusty winds are the main concerns with the strongest storms. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... .Thunderstorms... Thunderstorms will be possible Sunday evening through Wednesday. 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 417 PM CDT Thu Apr 18 2019 OKZ007-012-182145- Garfield OK-Grant OK- 417 PM CDT Thu Apr 18 2019 ...SIGNIFICANT WEATHER ADVISORY FOR central Garfield and southwestern Grant Counties Until 445 PM CDT... AT 412 PM CDT, a strong thunderstorm was located near Kremlin, moving southeast at 40 MPH. Another strong storm was located just south of Enid. HAZARDS INCLUDE... Hail up to one-half inch diameter... Wind gusts to 40 MPH... PRECAUTIONARY/PREPAREDNESS ACTIONS... Severe weather is not expected and no warnings are anticipated at this time. && LAT...LON 3657 9802 3665 9782 3632 9756 3622 9791 TIME...MOT...LOC 2112Z 333DEG 34KT 3654 9789 30
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
430 PM CDT Thu Apr 18 2019
OKZ007-008-013-182200-
Kay OK-Grant OK-Noble OK-
430 PM CDT Thu Apr 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR southwestern Kay...southeastern
Grant and northwestern Noble Counties Until 500 PM CDT...
AT 426 PM CDT, a strong thunderstorm was located 5 miles south of
Nardin, moving southeast at 35 MPH.
HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts to 50 MPH...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3653 9714 3652 9745 3655 9746 3659 9746
3659 9748 3678 9756 3683 9740
TIME...MOT...LOC 2126Z 335DEG 29KT 3673 9744
30SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
447 PM CDT Thu Apr 18 2019
OKZ004>031-033>040-044-TXZ083-085-182245-
Tillman OK-Woodward OK-Oklahoma OK-Logan OK-Cleveland OK-Harper OK-
Woods OK-Beckham OK-Kay OK-McClain OK-Seminole OK-Grant OK-
Lincoln OK-Ellis OK-Major OK-Payne OK-Kiowa OK-Alfalfa OK-Dewey OK-
Greer OK-Jackson OK-Garfield OK-Cotton OK-Washita OK-Pottawatomie OK-
Stephens OK-Canadian OK-Garvin OK-Comanche OK-Blaine OK-Noble OK-
Harmon OK-Grady OK-Kingfisher OK-Roger Mills OK-Caddo OK-Custer OK-
Wilbarger TX-Hardeman TX-
447 PM CDT Thu Apr 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR all of northern, central and
western Oklahoma and parts of western north Texas Until 545 PM CDT...
AT 441 PM CDT, scattered showers and isolated thunderstorms were
moving south across the area. Some of these showers and storms will
be capable of producing wind gusts of 45 to 55 mph and pea to dime
size hail. This activity was moving southeast at 45 mph.
LAT...LON 3700 9675 3678 9675 3668 9693 3668 9706
3659 9706 3658 9689 3651 9703 3633 9703
3633 9692 3625 9692 3624 9682 3616 9682
3616 9662 3544 9661 3545 9655 3544 9655
3417 9874 3426 10000 3700 10000
TIME...MOT...LOC 2141Z 334DEG 40KT 3539 9830
30The Norman radar (KTLX), 18 km away, was scanning. The volume nearest the first event began at 22:29 UTC.
12 thunderstorm wind. Local standard time, as filed.
Power pole downed at NE 23RD and Draper.
Tree downed on roadway near NE 36TH and Henney.
Damage to wall of sheriff's office with a few bricks removed from the wall. Time estimated from radar.
Trees downed between 6TH and 8TH on Byrd street in Tishomingo.
Tree down on vehicle at Byrd and 12TH street.
Damage to a building in the town of Mill Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2019Every state in 2019This day in weather historyWarnings in Oklahoma, April 2019
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: 818662, 818663, 818664, 818665, 818666, 818667, 821900, 818668, 818669, 818670, 818671, 821896.