A mesoscale convective vortex (MCV), which was formed by a dying cluster of thunderstorms over the Texas Hill Country early in the day, lifted north and ignited isolated storms Saturday afternoon just south of the Red River. A few strong to marginally severe storms occurred in Grayson County.
Every event with a place to put it. Tap one for its entry below.
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 FWD wrote it up.
A mesoscale convective vortex (MCV), which was formed by a dying cluster of thunderstorms over the Texas Hill Country early in the day, lifted north and ignited isolated storms Saturday afternoon just south of the Red River. A few strong to marginally severe storms occurred in Grayson 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 Fort Worth, TX wrote its last area forecast discussion before the first event at Jun 22, 2:09 PM CST, 1 hour 13 minutes earlier.
Area Forecast Discussion National Weather Service Fort Worth TX 309 PM CDT Sat Jun 22 2019 .SHORT TERM... /Tonight/ Scattered showers and thunderstorms will continue to develop through the evening as an MCV from morning convection in the Hill Country rotates north across the region. Mixed layer CAPE is on the order of 3000+ J/KG generally east of the I-35 corridor with little to no CIN. Although a surface focus will be absent, the large scale lift, instability and shear present should be enough to sustain updrafts for some strong to possibly severe multicell storms. Hail and downburst winds will be the primary hazards. There should be a decrease in activity later this evening once the MCV exits to the north and surface heating wanes. The focus for storms will then shift north of the Red River ahead of an approaching upper trough and cold front. We will maintain some chance PoPs generally across the northern zones overnight to account for new development on any stray outflows. Abundant clouds and breezy south winds will keep mild conditions tonight with lows in the mid and upper 70s. 79 && .LONG TERM... /Sunday through Saturday/ Convection will likely be ongoing across Oklahoma at sunrise Sunday. Nearly all of the high res solutions maintain downwind propagation, keeping storms north of the Red River. However, there is still some outside potential for a few storms to move south across the Red River on convective outflows. Therefore, we will maintain some chance PoPs, generally north of the I-20 corridor Sunday morning. Another complex of storms will likely develop across West Texas and Oklahoma Sunday afternoon along a cold front and upper trough. These storms are expected to remain well organized as they move south through North Texas Sunday evening. The atmosphere will remain quite unstable with increasing low and mid level shear. Therefore long lived updrafts are likely with a potential for damaging wind and large hail. As with any liner convective system, there will be a potential of some very brief tornadoes within bowing segments of the line. Another threat will be heavy rainfall with precipitable water values between 1.5 and 2 inches and some training of storms along the front. Although some localized flooding will be possible generally north of the I-20 corridor, widespread flash flooding is not anticipated so we will hold off on issuing a Flash Flood Watch for now. Storms will likely weaken as they move into Central Texas Monday morning as the upper trough lifts northeast. However, the cold front will lose its punch and will likely begin to lift back to the north Monday afternoon in response to zonal flow over the Central Rockies and the development of a surface lee trough. It is difficult to say how fast the atmosphere will recover after overnight/morning convection, but most guidance suggests that some showers and storms will be possible Monday afternoon/Monday night. An upper ridge will begin to establish itself across the Southern and Central Plains Tuesday and remain in place Wednesday through Friday. Weak large scale subsidence under the ridge should suppress any organized convection. However, abundant low level moisture coupled with daytime heating will warrant some low PoPs each afternoon and evening, especially across the east and southeast zones. Temperatures next week should remain seasonably hot with highs from the upper 80s to the lower 90s and lows in the upper 60s and lower 70s. Afternoon heat index values will likely be in the upper 90s to around the century mark each day next week. 79 && .AVIATION... /Issued 121 PM CDT Sat Jun 22 2019/ /18z TAFS/ Decaying MCV just west of Stephenville at 18z will continue to drift northward this afternoon and evening, with scattered showers/isolated thunderstorms concentrated near its center. CAPE is relatively low and convective inhibition is relatively high near and north of this MCV center, and believe additional development around the core will be limited through 00z. On the other hand, higher CAPEs exist along the eastern outer periphery of this feature, generally along a Austin-Palestine-Paris axis. Believe scattered convection will form through the afternoon within this nearly uncapped warm sector, where insolation is better. The DFW-area TAF sites are on the fringe of this better convective potential across eastern N TX, and wouldn't be surprised to see scattered showers/isolated storms break out by 20z. However, think the cloud canopy associated with the MCV will retard significant storm formation this afternoon. Have elected - for now - to forego VCTS mention at any of the DFW TAF sites or at KACT. Otherwise, sky conditions should remain VFR into the evening hours. Short-term convective allowing models are struggling to develop any organized activity south of the Red River, and show little more than isolated activity prior to daybreak Sunday. Am inclined to buy this scenario for now, given the better forcing for ascent associated with the large shortwave exiting the Rockies will remain focused from the TX Panhandle eastward into OK. As a result, have not gone beyond a mention of VCSH through 18Z Sunday. We'll really need to watch how this setup unfolds, however, as any unforeseen convective complexes that do form over OK/NW TX may have favorable propagation characteristics that will take it into N TX after 06z tonight. While unlikely, this could lead to a band of strong/severe storms tracking across the DFW TAF sites prior to daybreak Sunday. With decent moist isentropic lift continuing over the area, expect a return of MVFR ceilings at all TAF sites in the 07-09z timeframe, eventually mixing to VFR conditions by 15-16z Sunday. A healthy southerly windflow will persist throughout the forecast period, gusting at times this afternoon in the 24-28knot range. Bradshaw && .PRELIMINARY POINT TEMPS/POPS... Dallas-Ft. Worth 76 92 71 87 72 / 40 30 80 40 20 Waco 78 93 73 89 72 / 30 30 60 50 30 Paris 75 88 68 85 70 / 50 40 80 50 30 Denton 75 92 68 87 70 / 40 30 80 30 20 McKinney 76 90 69 86 71 / 40 30 80 40 20 Dallas 78 93 72 88 73 / 40 30 80 40 20 Terrell 78 91 71 87 72 / 30 30 80 40 30 Corsicana 77 91 71 87 72 / 30 30 70 50 30 Temple 77 92 74 88 70 / 30 30 60 50 30 Mineral Wells 75 92 68 87 69 / 30 30 80 20 20 && .FWD WATCHES/WARNINGS/ADVISORIES... None. && 79/66
Hazardous Weather Outlook National Weather Service Fort Worth TX 340 PM CDT Sat Jun 22 2019 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-231200- Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin- Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas- Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell- Johnson-Ellis-Henderson-Comanche-Mills-Hamilton-Bosque-Hill-Navarro- Freestone-Anderson-Lampasas-Coryell-Bell-McLennan-Falls-Limestone- Leon-Milam-Robertson- 340 PM CDT Sat Jun 22 2019 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...Tonight. Scattered thunderstorms are possible through the evening. Some strong or severe storms are possible with a threat for hail and downburst winds. Storms are expected to develop north of the Red River overnight, a few of these storms may move into North Texas before sunrise Sunday, bringing a chance for gusty winds and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Additional thunderstorms are expected on Sunday, especially Sunday evening into Sunday night when a storm complex moves in from the northwest. These storms will have a potential to produce damaging winds, hail, and heavy rainfall. This complex should affect most of North and Central Texas as it moves southeast through Monday morning. Low thunderstorm chances will continue each day next week, mainly during the late afternoon hours. .SPOTTER INFORMATION STATEMENT... Very limited spotter activation may be requested through mid evening, especially north of the I-20 corridor.
Special Weather Statement National Weather Service Fort Worth TX 322 PM CDT Sat Jun 22 2019 TXZ104-222045- Collin TX- 322 PM CDT Sat Jun 22 2019 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN COLLIN COUNTY UNTIL 345 PM CDT... At 321 PM CDT, Doppler radar was tracking a strong thunderstorm near Plano, moving northeast at 30 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Plano, McKinney, Frisco, Richardson, Allen, Murphy, Prosper, Anna, Fairview, Princeton, Celina, Lucas, Parker, Lowry Crossing, Melissa, Blue Ridge, New Hope, Weston and Westminster. LAT...LON 3299 9667 3304 9684 3340 9681 3330 9636 TIME...MOT...LOC 2021Z 204DEG 26KT 3310 9675 Bradshaw
Special Weather Statement
National Weather Service Fort Worth TX
357 PM CDT Sat Jun 22 2019
TXZ093-104-222145-
Collin TX-Grayson TX-
357 PM CDT Sat Jun 22 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL COLLIN AND
SOUTHEASTERN GRAYSON COUNTIES UNTIL 445 PM CDT...
At 356 PM CDT, Doppler radar was tracking a strong thunderstorm over
Van Alstyne, or 14 miles northeast of McKinney, moving north at 30
mph.
Half inch hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Sherman, Denison, Anna, Van Alstyne, Howe, Whitewright, Bells, Tom
Bean, Weston, Westminster and Luella.
LAT...LON 3378 9651 3377 9650 3378 9645 3378 9643
3375 9641 3373 9638 3345 9639 3331 9644
3332 9667 3382 9658 3382 9652
TIME...MOT...LOC 2056Z 193DEG 27KT 3340 9655
HernandezThe Dallas/Ft Worth radar (KFWS), 129 km away, was scanning. The volume nearest the first event began at 21:21 UTC.
1 thunderstorm wind. Local standard time, as filed.
A storm chaser reported trees uprooted immediately south of the city of Tom Bean, TX.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2019Every state in 2019This day in weather historyWarnings in Texas, June 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: 838480.