Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Every event with a place to put it; 31 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.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
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 Sep 1, 4:43 AM CST, 6 hours 17 minutes earlier.
Area Forecast Discussion National Weather Service Fort Worth TX 543 AM CDT Wed Sep 1 2021 ...New Short Term, Aviation... .SHORT TERM... /NEW/ Update: Another hot day will be in store today as high temperatures climb into the mid 90s to around 100. With increased moisture in the area, heat index values will climb into the triple digits throughout much of North and Central Texas. Areas along and east of the I-35 corridor will experience oppressive heat index values between 105 to 109, which is the reason for the Heat Advisory this afternoon. A few showers and storms will once again be possible this afternoon, mainly south of I-20. Gusty outflow winds will be the main threat with any storm. Hernandez Previous Discussion: /Through Sunrise Thursday/ Considering today is the first day of meteorological fall, the temperatures will surely continue to remain summerlike across North and Central Texas. An axis of higher pressure across the Southern and Central Plains will gradually migrate eastward today, leading to temperatures in the mid to upper 90s this afternoon. Southerly flow will also help advect higher moisture into our region, bumping dew points into the lower to mid 70s. Given the T/Td combination, heat index values will likely climb above 100 degrees throughout much, if not all of the area. A Heat Advisory will be in effect through around sunset today for the areas where heat index values are expected to exceed 105 degree. This will be roughly along and east of I-35. There will a potential for isolated showers and thunderstorms this afternoon, mainly driven by the daytime heating within a moist and unstable atmosphere. Gusty winds cannot be ruled out from any thunderstorm, but severe weather is not anticipated. As the sun sets and temperatures begin to cool, any precipitation will quickly dissipate. Fairly quiet weather conditions will persist as lows bottom out in the lower to mid 70s. As is typical for this time of the year, the Urban Heat Island effect will keep temperatures in the upper 70s to around 80 degrees in the Dallas/Fort Worth Metroplex. Hernandez && .LONG TERM... /Issued 330 AM CDT Wed Sep 1 2021/ /Thursday through Tuesday/ Mid level ridging will dominate the Southern Plains through the end of the week into early next week resulting in hot conditions and little chance for rainfall. There could be a few scattered sea breeze storms in our southeast counties on Thursday where lingering moisture will be in place. The heat and humidity will send heat indices near 105 again Thursday afternoon. It will be a little drier Friday through Monday so additional heat advisories may not be needed. A weak cold front will slide into the Southern Plains on Sunday as the ridge center backs to the west some. We'll have some low PoPs north of I-20 Sunday afternoon. Otherwise, ridging will build back early next week with medium range guidance in agreement on a period of above normal temperatures and below normal precipitation. Dunn && .AVIATION... /NEW/ /12Z TAFs/ Concerns...Isolated convection this afternoon. Similar to the previous couple of days, the main concern to aviation today will be any isolated convection that develops in the afternoon. The highest potential for any precipitation is likely to be south of I-20, where moisture will be a bit higher. At this time there remains too much uncertainty in location to place any mention of convection in the TAF. It's quite possible that much of the convection stays well east of Waco today, preventing any disruptions to the airfield. Afternoon Cu will once again be possible today as daytime heating ramps up. Winds will remain out of the south, generally between 5-7 knots through the night. Any afternoon convection will dissipate by sunset, leaving behind a quiet and calm night throughout the region. Hernandez && .PRELIMINARY POINT TEMPS/POPS... Dallas-Ft. Worth 100 78 97 78 97 / 10 10 10 5 5 Waco 98 77 96 76 96 / 20 10 10 5 5 Paris 97 75 93 74 92 / 5 5 10 0 5 Denton 99 75 98 76 98 / 5 10 10 5 5 McKinney 99 76 96 76 96 / 10 5 10 5 5 Dallas 100 80 97 79 97 / 10 10 10 5 5 Terrell 99 75 96 75 95 / 10 5 10 5 5 Corsicana 96 76 96 76 96 / 20 5 10 5 5 Temple 97 75 97 74 96 / 20 10 10 5 10 Mineral Wells 97 74 96 74 95 / 10 5 5 0 5 && .FWD WATCHES/WARNINGS/ADVISORIES... Heat Advisory from noon today to 8 PM CDT this evening for TXZ091>095-102>107-118>123-133>135-145>148-158>162-174-175. &&
Hazardous Weather Outlook National Weather Service Fort Worth TX 332 AM CDT Wed Sep 1 2021 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-020845- 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- 332 AM CDT Wed Sep 1 2021 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...Today and Tonight. Isolated thunderstorms are possible mainly south of I-20 this afternoon. Gusty winds and an occasional lightning strike would be the main threats with any storms. Heat indices between 105-110 degrees can be expected this afternoon. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Isolated thunderstorms are expected Thursday mainly southeast of Waco. Gusty winds and lightning will be the main threats. Additional thunderstorm chances return on Sunday afternoon mainly north of I-20. Severe weather is not expected. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The national radar mosaic for the moment the first event began.
31 heat. Local standard time, as filed.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st and 2nd.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
Heat Index values reached 105-110 degrees in the afternoon hours of the 1st.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2021Every state in 2021This day in weather historyWarnings in Texas, September 2021
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: 979513, 979514, 979515, 979516, 979517, 979518, 979519, 979520, 979521, 979522, 979523, 979524, 979525, 979526, 979527, 979528, 979529, 979530, 979531, 979532, 979533, 979534, 979535, 979536, 979537, 979538, 979539, 979540, 979541, 979542, 979543.