The summer heat really started showing in late June and early July. A Heat Advisory for Heat Index values over 105 degrees was issued beginning June 30th and continuing into the first few days of July.
Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
The summer heat really started showing in late June and early July. A Heat Advisory for Heat Index values over 105 degrees was issued beginning June 30th and continuing into the first few days of July.
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 30, 4:49 AM CST, 6 hours 11 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Fort Worth TX 549 AM CDT Tue Jun 30 2020 .SHORT TERM... /NEW/ Update: An area of sprinkles and light rain has developed across Central Texas this morning as a weak mid level trough moves through. Much of this activity is rooted in the mid levels over a dense stratus deck, which has developed a seeder-feeder growth mechanism. As the lower stratus erodes and the trough continues east, the showers should come to an end by the afternoon. Elsewhere, a few isolated showers are possible across Northeast Texas in association with weak isentropic ascent this morning. Similar to the Central Texas activity, much of this should come to an end by the afternoon. The remainder of the forecast remains largely on track, with another hot, humid, and breezy day expected across the region. Isolated to scattered thunderstorms remain possible across the Big Country along the dryline late this afternoon. Additional details regarding today's setup can be read below. Bonnette Previous Discussion... /Issued 139 AM CDT Tue Jun 30 2020/ /Today and Tonight/ The remnants of yesterday afternoon's storm system will continue east through the early morning hours. Increased cloud cover from this system and a layer of gulf stratus combined with elevated winds have prevented temperatures from dropping too much this evening. Temperatures may drop a couple of degrees at best through the rest of the night, giving way to another warm and humid start to the day today. This trend will continue into the afternoon as the status erodes and gives way to partly cloudy skies and plentiful insolation. Expect both the ambient and dew point temperatures to be a couple degrees warmer today than yesterday due to a northward surge of higher theta-e air from Southeast Texas. This has resulted in the issuance of a Heat Advisory for much of the region as heat index values range in the 105-108 range this afternoon. The exception to this is across Central and Southeast Texas where thicker upper cloud cover should keep afternoon high temperatures in the low to mid 90s. Tonight should be a "wash-rinse-repeat" of the past couple nights with gusty south winds, warm temperatures, and mostly cloudy skies. To our west, a dryline will advance east through the afternoon. Similar to yesterday, isolated to scattered thunderstorms are expected to develop along this boundary primarily to the west of our forecast area. The storms may initially become strong to severe with the primary threat being damaging wind gusts and large hail. With that being said, a strong capping inversion and large inhibition will reside over much of our forecast area this afternoon. As the storms continue east, they will have to overcome this inhibition...causing much of them to weaken as they enter North Texas. The storms will also be cold-pool dominate by this time as well and increasingly detached from the source of ascent (the dryline). A couple of the CAM members have hinted at the storms developing along and east of US-281, however, the inhibition should be too strong for storms to develop or move into this area. Bonnette && .LONG TERM... /Issued 319 AM CDT Tue Jun 30 2020/ /Late Week, The Holiday Weekend, and Monday/ The upper ridge currently over the Gulf of Mexico and Central Gulf Coast is forecast to expand north-northwest across much of North and Central Texas Wednesday and Thursday. This will likely bring our hottest ambient high temperatures of the week. With the surface dryline remaining well west of area, any focus for isolated showers and storms should also remain west of the CWA. In addition, the strengthening ridge and only shallow moisture should suppress any potential for storm development with hot and humid weather being the main weather headline. We may need to watch the immediate Colorado River Valley region of our western Central Texas counties for the potential of dying storm activity Wednesday evening. As of right now, confidence is too low that any activity survives further east into the more capped environment across our southwest counties. High temperatures will range from the mid 90s to between 100 to 102 along and west of Highway 281 on Wednesday. Combine this with dew point temperatures in the upper 60s far west to the lower to mid 70s elsewhere and you have the recipe for oppressive heat. We have maintained the current Heat Advisory configuration both spatially and temporally with heat index values across eastern Central Texas remain at or just below 105 degrees. The area should remain suppressed underneath a strengthening upper ridge Thursday and Friday with hot temperatures between 95 and 100 degrees forecast each afternoon. The one caveat here, however, will be deeper mixing expected to lower surface dew point temperatures by Friday. With these trends noted, have decided not to extend the Heat Advisory for parts of North Texas into Thursday considering some of the marginal values across much of the area. We'll reevaluate both ambient and dew point temperatures later today and tonight to assess whether we need to add an extra day to the Heat Advisory for parts of the area Thursday afternoon. Nothing too out of the norm moving into early July across our part of the country. Regarding storm chances to end the week, it appears storms will form late in the day Thursday along a stalled frontal boundary well north of the CWA across the KS/OK border region into the Ozarks. Any nocturnal storm clusters appear to move south to southeast along the periphery of the main upper ridge axis anchored well northwest of our area. Have maintained slight chances for a weakening cluster of storms late Thursday night into Friday morning for areas near the Red River Valley into our northeast counties...possibly as far south as the I-30 corridor. Considering the mostly nocturnal time of day and the expected veering and relatively weak 925-850mb flow, we don't expect severe weather to occur. However, we can't rule out gusty winds from convection that will be likely outflow-dominant by the time it nears our far north-northeast counties. The upper ridge shifts further west of North and Central Texas for the Independence Day Weekend. This will put our area along the east or southeast periphery of this feature with likely an increase in atmospheric moisture through 700mb. Occasional mid level impulses are forecast to round the upper ridge and move south-southwest from the Lower Mississippi Valley toward the Western Gulf of Mexico and Southeast Texas...Have added 20-30% PoP chances to our East Texas counties considering that even if the bulk of the lift remains east of our area, strong diurnal heating and weaker inhibition should at least allow for diurnal convective development. Nothing severe, but can't rule out a few late day heavy downpours, frequent lightning, and even gusty winds. Don't fret if you have outdoor plans for for Independence Day across eastern parts of the area, as most activity should diminish rapidly after dark with loss of daytime heating and just in time for any regional festivities. In addition, the weakening of the upper ridge will bring high temperatures back down into the lower to mid 90s. Similar weather trends continue into Monday and possibly much of next week, as medium range models and their ensembles continue maintain the core of the upper ridge well west of our area and across the Southwest CONUS. 05/ && .AVIATION... /NEW/ /12Z TAFs/ A patchy layer of MVFR stratus is covering much of North and Central Texas at this hour. The ceilings are more patchy further north and west, including across the D10 terminals. Expect the ceilings to vary between MVFR/VFR through the morning, eventually prevailing VFR by 15-17Z. The ceilings are more dense across Central Texas, and the KACT terminal, with a band of operationally insignificant light rain south of KACT. The rain should come to an end with the erosion of the stratus deck mid to late this morning. Winds across the region should remain gusty between 25-30 kts out of the south with slight diurnal fluctuations in wind direction and wind speed. Bonnette && .PRELIMINARY POINT TEMPS/POPS... Dallas-Ft. Worth 96 79 98 77 99 / 10 10 0 5 0 Waco 95 78 98 76 99 / 10 10 0 5 0 Paris 93 78 95 75 96 / 10 5 0 5 5 Denton 96 78 99 76 98 / 20 10 0 5 5 McKinney 96 78 98 76 99 / 10 5 0 5 5 Dallas 97 79 99 78 100 / 10 5 0 5 0 Terrell 94 78 97 76 98 / 10 5 0 5 5 Corsicana 94 79 96 76 96 / 10 5 5 0 0 Temple 95 78 98 76 98 / 10 10 0 5 0 Mineral Wells 98 76 101 76 98 / 10 20 0 5 10 && .FWD WATCHES/WARNINGS/ADVISORIES... Heat Advisory from noon today to 7 PM CDT Wednesday for TXZ091>095-100>107-115>123-129>135-141>146-156>159. && 06/05
Hazardous Weather Outlook National Weather Service Fort Worth TX 151 AM CDT Tue Jun 30 2020 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-011200- 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- 151 AM CDT Tue Jun 30 2020 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...Tonight. Heat index values between 105 and 110 degrees are expected this afternoon and early evening across all areas except eastern Central Texas. These areas will likely see heat index values between 100 to 105 degrees. Isolated to scattered thunderstorms are possible over the Big Country late this afternoon and early this evening. A few strong storms capable of producing hail, gusty winds, and heavy rain are possible west of US-281. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Widespread heat index values between 105 and 110 degrees will continue again Wednesday afternoon and early evening for all areas except eastern Central Texas. Heat index values from the upper 90s to around 105 degrees will continue Thursday and Friday. Additional low storm chances are expected Thursday night and Friday near the immediate Red River Valley, then continuing through this weekend into early next week mainly along and east of I-35. Severe weather is not expected. Primary hazards will be lightning strikes and a few torrential downpours. Gusty winds cannot be ruled out with brief stronger storms. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The national radar mosaic for the moment the first event began.
7 heat. Local standard time, as filed.
Afternoon Heat Index values soared to near 110 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 110 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 110 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 110 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 105 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 105 degrees. A Heat Advisory was in effect through July 2nd.
Afternoon Heat Index values soared to near 105 degrees. A Heat Advisory was in effect through July 2nd.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2020Every state in 2020This day in weather historyWarnings in Texas, June 2020
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: 904097, 904098, 904099, 904100, 904101, 904102, 904103.