A weak cold front generated isolated thunderstorms along the Red River Wednesday evening. One storm produced isolated wind damage as it moved south-southwest over parts of the Dallas-Fort Worth Metro area.
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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 FWD wrote it up.
A weak cold front generated isolated thunderstorms along the Red River Wednesday evening. One storm produced isolated wind damage as it moved south-southwest over parts of the Dallas-Fort Worth Metro area.
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 20, 5:46 PM CST, 3 hours 2 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Fort Worth TX 646 PM CDT Wed Jun 20 2018 .AVIATION... /00z TAFs/ The main concern this evening revolves around the convective potential at the Metroplex TAF sites. Thunderstorms are ongoing just north of the Red River early this evening near a cold front and these will continue to gradually sink southward over the next few hours. Visible satellite imagery also reveals the Cu field just north and west of the Metroplex is becoming a bit more agitated, with several convective initiation attempts noted over the last hour. The currently-ascending 00z RAOB sampled some fairly warm air around 700-750 mb, but the effects of a nearby shortwave may be sufficient to erode this over the next hour or two. As a result, we've elected to TEMPO TSRA at the Metroplex airports (02-04z at DFW, DAL, AFW, and FTW, and 03-05z at GKY). A brief north wind shift will be possible as convection passes, but conditions should rapidly improve after 05z. At Waco, precipitation chances appear too low to warrant an explicit mention through the TAF period. Overnight, there are signals that skies may clear across the Metroplex. With considerable near-surface moisture in place along with very light winds, there may be a potential for IFR cigs (and vsbys). With considerable uncertainties regarding this potential, we'll keep things more optimistic for the time-being, but a more pessimistic outlook may be needed in later TAFs. IFR (even LIFR) conditions appear to be in store for Waco as the next slug of moisture rides northward overnight. Conditions will improve quickly during the mid-morning hours on Thursday. Winds will likely briefly shift out of the west before southerly winds return during the late-afternoon and evening. Carlaw && .SHORT TERM... /Issued 331 PM CDT Wed Jun 20 2018/ /Tonight/ Tropical moisture will continue to be shunted to the east tonight which will keep the majority of showers and storms east of the forecast area. However, the eastern zones will still see some scattered activity mainly through sunset. There is also a chance for additional shower and thunderstorm development late this afternoon/early evening generally north of the forecast area in the vicinity of a weak cold front and shortwave. If these storms do develop they will move southeast into North Texas, affecting locations generally north of I-20. Instability across the northern half of the region is marginal and moisture will be decreasing through the night so storms may have difficulty holding together. Therefore, we will keep PoPs fairly low this evening/overnight. Overnight lows will be generally in the lower and middle 70s with a light south to southeast wind. 79 && .LONG TERM... /Issued 331 PM CDT Wed Jun 20 2018/ /Thursday Onward/ Thursday should begin with a relative lull in precipitation with a stalled frontal boundary positioned through southern Oklahoma. The plume of rich moisture that had brought portions of North and Central Texas some beneficial rainfall will be shifting to the south towards Mexico, leaving us with substantially lower PW values. This will also mean fewer clouds than previous days, so temperatures will warm quickly as we return to near/above normal highs Thursday afternoon. As a shortwave pivots through the Central Plains, this may force the stalled front to enter North Texas by Thursday afternoon. This boundary could serve as a focus for convective initiation Thursday afternoon during peak heating with weak low-level convergence occurring near the diffuse frontal zone. The mostly likely area would be north of I-20 and east of I-35. Unlike the previous few days, our the environment will have fewer tropical characteristics, and instead will be more unstable with steeper lapse rates aloft and some drier mid-level air in place. These condition would support a threat for some stronger storms in these areas capable of strong winds or some hail through Thursday evening. After a couple days of near or below normal temperatures, Friday will be a rude awakening that it is, in fact, summer in North Texas. The upper ridge will build back in from the west, and temperatures will climb into the upper 90s and low 100s west of I-35 both Friday and Saturday. In addition, we'll keep some residual low-level moisture around with dewpoints in the upper 60s and 70s which will contribute to heat index values at or above 105 degrees. It's possible a Heat Advisory will be needed during the Friday/Saturday time period if it appears these conditions will materialize. Both Friday and Saturday evenings, we will need to keep an eye on convection to our north as storms are expected to develop along the stalled front draped through Oklahoma. Some of this activity could affect our Red River counties on Friday evening. However, models are becoming quite a bit more aggressive with suggesting an MCS will build into North Texas on Saturday night. I've raised and expanded PoPs overnight Saturday into Sunday morning for areas including the DFW Metro. Conditions are actually reasonably favorable for a robust MCS to be maintained into North Texas during this time, with northerly Corfidi vectors, very large instability, and strong low-level warm advection. Some strong winds would be possible if the complex can sustain itself into North Texas. Following the potential early morning complex, Sunday should be a mostly dry day with temperatures a couple degrees cooler than Saturday, although heat indices near 105 will still be possible. We'll remain on the periphery of the upper ridge axis Monday through Wednesday, and temperatures will remain mostly in the mid/upper 90s. Outside of some low rain chances associated with seabreeze convection across our southeast on Monday and Tuesday, it appears most of the area will remain dry early next week. -Stalley && .PRELIMINARY POINT TEMPS/POPS... Dallas-Ft. Worth 75 95 77 98 80 / 30 20 10 10 10 Waco 74 94 76 100 78 / 20 20 0 5 0 Paris 72 91 71 92 75 / 40 40 30 30 20 Denton 74 95 74 99 79 / 30 20 10 10 10 McKinney 72 93 71 96 73 / 30 30 20 10 10 Dallas 75 95 78 98 80 / 30 20 10 10 10 Terrell 73 94 75 98 78 / 30 30 10 10 10 Corsicana 72 92 75 97 76 / 30 20 5 10 5 Temple 72 93 74 99 76 / 20 20 0 5 0 Mineral Wells 72 96 73 100 78 / 30 10 5 5 10 && .FWD WATCHES/WARNINGS/ADVISORIES... None. && 90/25
Hazardous Weather Outlook...UPDATED National Weather Service Fort Worth TX 715 PM CDT Wed Jun 20 2018 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-220015- 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- 715 PM CDT Wed Jun 20 2018 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...Tonight. Thunderstorms are possible this evening, primarily near and north of I-20/I-30. While severe weather is not anticipated, the strongest storms will be capable of producing strong wind gusts and small hail in addition to brief heavy rainfall. Isolated thunderstorms will then be possible overnight, mainly east of I-35. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorm chances will continue mostly east of Interstate 35 on Thursday. The main hazards will be locally heavy rainfall, gusty winds, and lightning. Thunderstorm complexes moving southeast from Oklahoma may affect parts of North Texas both Friday and Saturday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Fort Worth TX
804 PM CDT WED JUN 20 2018
TXZ092-093-210145-
Grayson TX-Cooke TX-
804 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COOKE AND
SOUTHWESTERN GRAYSON COUNTIES UNTIL 845 PM CDT...
At 802 PM CDT, Doppler radar was tracking several strong
thunderstorms near Callisburg, Collinsville, Dorchester, and Howe.
Movement was southwest at 10 mph.
Half inch hail and wind gusts up to 50 mph will be possible with
these storms.
LAT...LON 3347 9652 3340 9659 3342 9720 3362 9730
3372 9704 3377 9682
TIME...MOT...LOC 0102Z 040DEG 11KT 3366 9701 3356 9696 3358 9677 3347
9665
25Special Weather Statement National Weather Service Fort Worth TX 848 PM CDT WED JUN 20 2018 TXZ094-210215- Fannin TX- 848 PM CDT WED JUN 20 2018 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL FANNIN COUNTY UNTIL 915 PM CDT... At 846 PM CDT, Doppler radar was tracking a strong thunderstorm over Dodd City, or 7 miles east of Bonham, moving south at 5 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. The core of the storm should remain east of Bonham. LAT...LON 3347 9586 3349 9618 3366 9620 3368 9585 TIME...MOT...LOC 0146Z 350DEG 5KT 3359 9605 25
Special Weather Statement National Weather Service Fort Worth TX 859 PM CDT WED JUN 20 2018 TXZ103-210230- Denton TX- 859 PM CDT WED JUN 20 2018 ...SIGNIFICANT WEATHER ADVISORY FOR DENTON COUNTY UNTIL 930 PM CDT... At 855 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along the Highway 380 corridor east of Denton. a line extending from Movement was southwest at 20 mph. Winds in excess of 40 mph will be possible with these storms. At 855 PM CDT, the leading edge of the outflow stretched from Cross Roads to Little Elm to Prosper. These gusty winds will be near... Shady Shores and Hackberry around 905 PM CDT. Corinth around 910 PM CDT. The Colony and Lake Dallas around 915 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... If on or near Lake Lewisville, get out of the water and move indoors or inside a vehicle. If you can hear thunder, you are close enough to be struck by lightning. Do not be caught on the water in a thunderstorm. && LAT...LON 3341 9684 3299 9685 3299 9740 3343 9738 TIME...MOT...LOC 0155Z 023DEG 17KT 3321 9699 3320 9691 3322 9685 25
Special Weather Statement
National Weather Service Fort Worth TX
908 PM CDT WED JUN 20 2018
TXZ094-210230-
Fannin TX-
908 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN FANNIN COUNTY UNTIL
930 PM CDT...
At 907 PM CDT, Doppler radar was tracking a strong thunderstorm over
Dodd City, or 7 miles southeast of Bonham, moving south at 10 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
This strong thunderstorm will be near...
Bailey around 930 PM CDT.
The core of the storm will remain southeast of the city of Bonham.
LAT...LON 3360 9586 3341 9586 3340 9590 3336 9625
3361 9615
TIME...MOT...LOC 0207Z 006DEG 9KT 3354 9607
25Special Weather Statement
National Weather Service Fort Worth TX
917 PM CDT WED JUN 20 2018
TXZ103-210245-
Denton TX-
917 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR DENTON COUNTY UNTIL 945 PM CDT...
At 915 PM CDT, Doppler radar was tracking strong thunderstorms
within Denton County. Movement was southwest at 20 mph.
Winds in excess of 40 mph will be possible with these storms. At 915
PM CDT, the leading edge of these outflow winds had reached Corinth,
Lake Dallas, and Hackberry.
LAT...LON 3341 9684 3299 9685 3299 9740 3300 9740
3343 9738
TIME...MOT...LOC 0215Z 029DEG 18KT 3315 9712 3313 9703 3314 9694
25Special Weather Statement
National Weather Service Fort Worth TX
939 PM CDT WED JUN 20 2018
TXZ103-118-119-210300-
Denton TX-Tarrant TX-Dallas TX-
939 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN DENTON...NORTHEASTERN
TARRANT AND NORTHWESTERN DALLAS COUNTIES UNTIL 1000 PM CDT...
At 936 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms in Denton County, moving south at 20 mph.
Pea hail and wind gusts up to 50 mph will be possible with these
storms.
The leading edge of the strong outflow winds have reached New
Fairview, Roanoke, and Carrollton. The strongest winds will impact
northeastern portions of Tarrant County, including Keller,
Southlake, and Grapevine.
LAT...LON 3308 9719 3307 9684 3281 9684 3283 9725
3299 9740 3323 9739
TIME...MOT...LOC 0236Z 009DEG 19KT 3316 9740 3301 9721 3300 9692
25The Dallas/Ft Worth radar (KFWS), 55 km away, was scanning. The volume nearest the first event began at 02:48 UTC.
3 thunderstorm wind. Local standard time, as filed.
Emergency management reported trees down in the city of Flower Mound, TX.
Emergency management reported 3 vehicles damaged by trees blown down near the city of Flower Mound, TX.
A broadcast media report indicated trees down in the city of Southlake, TX.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, June 2018
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: 770883, 770888, 770884.