Texas, 2020

Excessive Heat and Heat in Texas, August 12 to 16, 2020

August 12 to 16, 2020 · NWS FWD · 70 events in 46 counties and zones

August 12-16th was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning over the region. Actual temperatures soared to around 101-110 degrees in several places with heat index values ranging from 100-115 degrees.

Where it happened

Every event with a place to put it; 70 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
70

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.

What happened

The episode as NWS FWD wrote it up.

August 12-16th was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning over the region. Actual temperatures soared to around 101-110 degrees in several places with heat index values ranging from 100-115 degrees.

What forecasters said that day

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 Aug 12, 4:21 AM CST, 7 hours 39 minutes earlier.

Area forecast discussion, Aug 12, 4:21 AM CST, 7 hours 39 minutes before
Area Forecast Discussion
National Weather Service Fort Worth TX
521 AM CDT Wed Aug 12 2020

.SHORT TERM... /NEW/

Update:
The only significant change since the previous discussion was to
go ahead with the Heat Advisory, which is in effect from this
afternoon through Thursday. There were only 2 counties in the CWA
which were excluded from the advisory, Mills and Lampasas, where
afternoon dewpoints should sufficiently mix to keep heat indices
just below criteria. Isolated storms are still possible across the
northeastern-most zones today. Modest deep layer shear which was
in place yesterday is dwindling with the slow exit of the upper
level system over the Arklatex, so threats associated with any
storm which develops will likely be limited to frequent lightning
and brief heavy rain.

30

Previous Discussion:
/Through Thursday/

North and Central texas will remain beneath the eastern periphery
of a strong ridge centered near El Paso. Hot conditions will be
the primary and most widely felt result from this fairly common
summer pattern. Meanwhile, a shortwave trough extending
southwestward from an upper low centered over Missouri will
continue to slowly move southeast through the Arklatex region.
This feature continues to produce thunderstorms, which will
occasionally affect areas northeast of the Metroplex through the
overnight hours. Activity should fall apart Wednesday morning with
the loss of a modest low level jet. Redevelopment this afternoon
will be mainly east of the region as the upper level feature
begins its exit to the east. However, some high-resolution
guidance indicates one last wave of storms in the area, so will
keep chance to slight chance POPs going across the northeast zones
through the afternoon.

The rest of the region will have to deal with triple-digit heat
indices, with forecast values exceeding 105 across a good portion
of the region over the next couple of afternoons. The only
exceptions are the far northeast, where clouds and precip may
keep temps down a few degrees, and the southwestern-most zones
where dewpoints should mix out more efficiently each afternoon.
Will be collaborating with neighbors over the next few hours about
if and where a heat advisory might be needed, and have a decision
made before daybreak. The other headache will be elevated fire
danger west of I-35 where drying vegetation and hot, dry
afternoons will only aggravate the ongoing conditions. One
positive for Wednesday-Thursday is that it looks like winds will
be a few MPH lower than the past couple of days. That being said,
will likely issue another grass-fire danger statement due to min
RH dropping to or below 30 percent and winds still topping 10 MPH.

30

&&

.LONG TERM... /Issued 311 AM CDT Wed Aug 12 2020/
/Thursday Night through Tuesday/

Little change to the extended forecast through the weekend as we
appear to be entering the hottest stretch of summer so far.
Strong subtropical ridging will remain centered just to our west
but its sprawling eastward extent will keep us hot and dry through
the weekend with ambient air temperatures climbing to between
100-105 degrees. The only discrepancies among the guidance
continues to be the extent of afternoon boundary layer mixing and
subsequent drop in dewpoints which directly impacts heat index
values. As temperatures climb above 100 degrees, we usually see
dewpoints drop into the low/mid 60s which will likely be the case
Friday through Sunday. Areas east of I-35 may actually see
dewpoints remain in the upper 60s and lower 70s and this will be
where heat indices are highest. Either way, it'll be hot with heat
advisories likely being extended into the weekend.

There is still a consensus among the guidance with the center of
the ridge axis shifting westward early next week and a weak front
sliding southward in the Mon-Tue timeframe. This certainly won't
bring significantly cooler air into the region, but the associated
increase in cloud cover and drier air should provide some relief
from the very hot weather. We'll continue to advertise some low
rain chances Monday into Tuesday with the frontal boundary
lingering around.

Dunn

&&

.AVIATION... /NEW/
Update:
Convection has remained just east of the Bonham cornerpost and
should gradually shift east through the morning. Additional storms
may pop up farther west this afternoon, though coverage should
remain low enough to keep impacts to a minimum. It still looks
like storms should remain east of all TAF sites. VFR and south
winds are still expected at all locations through the end of the
forecast period.

30

Previous Discussion:
/06Z TAFs/

Isolated thunderstorms may occasionally affect east departure and
northeast arrival gates of DFW TRACON through Wednesday afternoon.
Otherwise, VFR and persistent southerly low level winds are
expected area-wide through the end of the forecast period.

30

&&

.PRELIMINARY POINT TEMPS/POPS...
Dallas-Ft. Worth   102  80 101  82 103 /   5   0   0   0   0
Waco               101  78 102  79 105 /   0   0   0   0   0
Paris               93  73  98  76  97 /  30   5   5   5   0
Denton             101  79 101  80 103 /   5   0   0   0   0
McKinney           100  79 101  80 102 /  20   0   0   0   0
Dallas             102  80 102  82 103 /  10   0   0   0   0
Terrell            100  77 101  78 102 /  20   0   0   0   0
Corsicana          100  77  99  78 102 /   5   0   0   0   0
Temple             101  77 102  77 103 /   0   0   0   0   0
Mineral Wells      102  77 103  78 105 /   0   0   0   0   0

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from 1 PM this afternoon to 7 PM CDT Thursday for
TXZ091>095-100>107-115>123-129>135-141-143>148-157>162-174-175.

&&

30/91
Hazardous weather outlook, Aug 12, 10:52 AM CST, 1 hour 8 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Fort Worth TX
1152 AM CDT Wed Aug 12 2020

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-131230-
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-
1152 AM CDT Wed Aug 12 2020

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...This Afternoon and Tonight.

There is a chance of thunderstorms for areas along and east of a
Bonham to Palestine line this afternoon. Gusty winds, locally heavy
rainfall, and frequent lightning will be the main threats.

A Heat Advisory is in effect for most of North and Central Texas as
heat index values are expected to rise above 105 degrees today.

There will be a threat for grass fires mainly west of I-35 through
this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hot weather will continue through the weekend with heat indices
exceeding 105 degrees each afternoon.

There will be an elevated fire weather threat during the afternoon
hours Thursday through Sunday.

There is a chance of thunderstorms across North Texas late Sunday
through Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

46 heat, 24 excessive heat. Local standard time, as filed.

Heat, Montague

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Montague forecast zone
Reported by
Official NWS Observations
Coordinates
33.676, -97.725 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Montague County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 100-105 during this period.

Heat, Cooke

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Cooke forecast zone
Reported by
Official NWS Observations
Coordinates
33.639, -97.213 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Cooke County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 98-101 during this period.

Heat, Grayson

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Grayson forecast zone
Reported by
Official NWS Observations
Coordinates
33.627, -96.678 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Grayson County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 98-101 during this period.

Heat, Fannin

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Fannin forecast zone
Reported by
Official NWS Observations
Coordinates
33.594, -96.107 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Fannin County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 98-101 during this period.

Heat, Lamar

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Lamar forecast zone
Reported by
Official NWS Observations
Coordinates
33.667, -95.571 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Lamar County. Afternoon Heat Index Values ranged from 105 to 112 degrees. The ambient temperatures topped out between 93-100 during this period.

Heat, Hunt

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Hunt forecast zone
Reported by
Official NWS Observations
Coordinates
33.124, -96.085 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Hunt County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 97-106 during this period.

Heat, Delta

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Delta forecast zone
Reported by
Official NWS Observations
Coordinates
33.386, -95.672 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Delta County. Afternoon Heat Index Values ranged from 100 to 105 degrees. The ambient temperatures topped out between 95-102 during this period.

Heat, Hopkins

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Hopkins forecast zone
Reported by
Official NWS Observations
Coordinates
33.150, -95.564 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Hopkins County. Afternoon Heat Index Values ranged from 100 to 108 degrees. The ambient temperatures topped out between 98-103 during this period.

Heat, Collin

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Collin forecast zone
Reported by
Official NWS Observations
Coordinates
33.188, -96.572 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Collin County. Afternoon Heat Index Values ranged from 105 to 112 degrees. The ambient temperatures topped out between 99-103 during this period.

Heat, Rockwall

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Rockwall forecast zone
Reported by
Official NWS Observations
Coordinates
32.898, -96.408 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Rockwall County. Afternoon Heat Index Values ranged from 105 to 111 degrees. The ambient temperatures topped out between 99-103 during this period.

Heat, Kaufman

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Kaufman forecast zone
Reported by
Official NWS Observations
Coordinates
32.599, -96.288 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Kaufman County. Afternoon Heat Index Values ranged from 105 to 112 degrees. The ambient temperatures topped out between 100-103 during this period.

Heat, Rains

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Rains forecast zone
Reported by
Official NWS Observations
Coordinates
32.870, -95.793 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Rains County. Afternoon Heat Index Values ranged from 105 to 111 degrees. The ambient temperatures topped out between 95-102 during this period.

Heat, Van Zandt

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Van Zandt forecast zone
Reported by
Official NWS Observations
Coordinates
32.564, -95.836 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Van Zandt County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 95-103 during this period.

Heat, Navarro

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Navarro forecast zone
Reported by
Official NWS Observations
Coordinates
32.047, -96.472 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Navarro County. Afternoon Heat Index Values ranged from 105 to 112 degrees. The ambient temperatures topped out between 100-106 degrees during this period.

Heat, Henderson

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Henderson forecast zone
Reported by
Official NWS Observations
Coordinates
32.212, -95.854 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Henderson County. Afternoon Heat Index Values ranged from 104 to 108 degrees. The ambient temperatures topped out between 95-101 degrees during this period.

Heat, Anderson

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Anderson forecast zone
Reported by
Official NWS Observations
Coordinates
31.813, -95.653 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Anderson County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 98-102 degrees during this period.

Heat, Freestone

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Freestone forecast zone
Reported by
Official NWS Observations
Coordinates
31.705, -96.149 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Freestone County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 98-102 degrees during this period.

Heat, Limestone

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Limestone forecast zone
Reported by
Official NWS Observations
Coordinates
31.546, -96.580 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Limestone County. Afternoon Heat Index Values ranged from 105 to 111 degrees. The ambient temperatures topped out between 100-103 degrees during this period.

Heat, Falls

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Falls forecast zone
Reported by
Official NWS Observations
Coordinates
31.253, -96.936 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Falls County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 100-103 degrees during this period.

Heat, Young

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Young forecast zone
Reported by
Official NWS Observations
Coordinates
33.177, -98.688 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Young County. Afternoon Heat Index Values ranged from 105 to 111 degrees. The ambient temperatures topped out between 104-109 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 12th through the 15th.

Heat, Milam

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Milam forecast zone
Reported by
Official NWS Observations
Coordinates
30.786, -96.977 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Milam County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 100-105 degrees during this period.

Heat, Robertson

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Robertson forecast zone
Reported by
Official NWS Observations
Coordinates
31.027, -96.513 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Robertson County. Afternoon Heat Index Values ranged from 105 to 112 degrees. The ambient temperatures topped out between 100-105 degrees during this period.

Heat, Leon

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Leon forecast zone
Reported by
Official NWS Observations
Coordinates
31.297, -95.996 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory for Leon County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 99-104 degrees during this period.

Heat, Jack

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Jack forecast zone
Reported by
Official NWS Observations
Coordinates
33.234, -98.172 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Jack County. Afternoon Heat Index Values ranged from 105 to 111 degrees. The ambient temperatures topped out between 103-107 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 12th through the 15th.

Heat, Stephens

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Stephens forecast zone
Reported by
Official NWS Observations
Coordinates
32.736, -98.836 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Stephens County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 105-107 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 12th through the 15th.

Heat, Wise

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Wise forecast zone
Reported by
Official NWS Observations
Coordinates
33.216, -97.654 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Wise County. Afternoon Heat Index Values ranged from 104 to 111 degrees. The ambient temperatures topped out between 102-107 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Palo Pinto

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Palo Pinto forecast zone
Reported by
Official NWS Observations
Coordinates
32.753, -98.313 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Palo Pinto County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 105-109 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 12th through the 15th.

Heat, Eastland

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Eastland forecast zone
Reported by
Official NWS Observations
Coordinates
32.327, -98.832 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Eastland County. Afternoon Heat Index Values ranged from 100 to 107 degrees. The ambient temperatures topped out between 102-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Denton

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Denton forecast zone
Reported by
Official NWS Observations
Coordinates
33.205, -97.117 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Denton County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 100-107 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Parker

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Parker forecast zone
Reported by
Official NWS Observations
Coordinates
32.778, -97.805 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Parker County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 104-109 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Tarrant

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Tarrant forecast zone
Reported by
Official NWS Observations
Coordinates
32.772, -97.291 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Tarrant County. Afternoon Heat Index Values ranged from 105 to 117 degrees. The ambient temperatures topped out between 104-109 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Dallas

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Dallas forecast zone
Reported by
Official NWS Observations
Coordinates
32.767, -96.778 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Dallas County. Afternoon Heat Index Values ranged from 105 to 117 degrees. The ambient temperatures topped out between 102-107 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Ellis

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Ellis forecast zone
Reported by
Official NWS Observations
Coordinates
32.348, -96.794 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Ellis County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 100-105 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Johnson

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Johnson forecast zone
Reported by
Official NWS Observations
Coordinates
32.379, -97.366 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Johnson County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 102-106 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Hood

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Hood forecast zone
Reported by
Official NWS Observations
Coordinates
32.430, -97.832 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hood County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 105-110 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Somervell

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Somervell forecast zone
Reported by
Official NWS Observations
Coordinates
32.222, -97.774 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Somervell County. Afternoon Heat Index Values ranged from 105 to 115 degrees. The ambient temperatures topped out between 105-110 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Erath

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Erath forecast zone
Reported by
Official NWS Observations
Coordinates
32.236, -98.218 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Erath County. Afternoon Heat Index Values ranged from 100 to 110 degrees. The ambient temperatures topped out between 102-106 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Comanche

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Comanche forecast zone
Reported by
Official NWS Observations
Coordinates
31.948, -98.558 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Comanche County. Afternoon Heat Index Values ranged from 104 to 110 degrees. The ambient temperatures topped out between 104-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Hamilton

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Hamilton forecast zone
Reported by
Official NWS Observations
Coordinates
31.705, -98.111 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hamilton County. Afternoon Heat Index Values ranged from 104 to 110 degrees. The ambient temperatures topped out between 104-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Bosque

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Bosque forecast zone
Reported by
Official NWS Observations
Coordinates
31.900, -97.634 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Bosque County. Afternoon Heat Index Values ranged from 105 to 114 degrees. The ambient temperatures topped out between 104-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Hill

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Hill forecast zone
Reported by
Official NWS Observations
Coordinates
31.991, -97.132 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hill County. Afternoon Heat Index Values ranged from 105 to 114 degrees. The ambient temperatures topped out between 104-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, McLennan

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
McLennan forecast zone
Reported by
Official NWS Observations
Coordinates
31.552, -97.202 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for McLennan County. Afternoon Heat Index Values ranged from 105 to 110 degrees. The ambient temperatures topped out between 102-108 degrees during this period. This county was upgraded to an Excessive Heat Warning on August 13th through the 15th.

Heat, Coryell

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Coryell forecast zone
Reported by
Official NWS Observations
Coordinates
31.391, -97.799 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Coryell County. Afternoon Heat Index Values ranged from 100 to 110 degrees. The ambient temperatures topped out between 100-106 degrees during this period. This county was upgraded to an Excessive Heat Warning for August 15th.

Heat, Bell

When
August 12, 12:00 PM CST to August 16, 6:00 PM CST
Where
Bell forecast zone
Reported by
Official NWS Observations
Coordinates
31.038, -97.478 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Bell County. Afternoon Heat Index Values ranged from 103 to 110 degrees. The ambient temperatures topped out between 102-106 degrees during this period. This county was upgraded to an Excessive Heat Warning for August 15th.

Excessive Heat, Young

When
August 12, 2:00 PM CST to August 15, 6:00 PM CST
Where
Young forecast zone
Reported by
Official NWS Observations
Coordinates
33.177, -98.688 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Young County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-109 degrees. Afternoon Heat Index Values ranged from 105 to 111 degrees.

Excessive Heat, Jack

When
August 12, 2:00 PM CST to August 15, 6:00 PM CST
Where
Jack forecast zone
Reported by
Official NWS Observations
Coordinates
33.234, -98.172 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Jack County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-111 degrees. Afternoon Heat Index Values ranged from 105 to 111 degrees.

Excessive Heat, Palo Pinto

When
August 12, 2:00 PM CST to August 15, 6:00 PM CST
Where
Palo Pinto forecast zone
Reported by
Official NWS Observations
Coordinates
32.753, -98.313 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Palo Pinto County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-109 degrees. Afternoon Heat Index Values ranged from 105 to 111 degrees.

Excessive Heat, Stephens

When
August 12, 2:00 PM CST to August 15, 6:00 PM CST
Where
Stephens forecast zone
Reported by
Official NWS Observations
Coordinates
32.736, -98.836 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Stephens County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-107 degrees. Afternoon Heat Index Values ranged from 105 to 110 degrees.

Excessive Heat, Eastland

When
August 13, 12:00 PM CST to August 15, 6:00 PM CST
Where
Eastland forecast zone
Reported by
Official NWS Observations
Coordinates
32.327, -98.832 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Stephens County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-108 degrees. Afternoon Heat Index Values ranged from 100 to 107 degrees.

Heat, Lampasas

When
August 13, 2:00 PM CST to August 16, 6:00 PM CST
Where
Lampasas forecast zone
Reported by
Official NWS Observations
Coordinates
31.196, -98.241 (the zone’s center; the record gives no point)

August 13-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Lampasas County. Afternoon Heat Index Values ranged from 100 to 108 degrees. The ambient temperatures topped out between 100-105 degrees during this period. This county was upgraded to an Excessive Heat Warning for August 15th.

Excessive Heat, Mills

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Mills forecast zone
Reported by
Official NWS Observations
Coordinates
31.495, -98.595 (the zone’s center; the record gives no point)

Mills County was under an Excessive Heat Warning from August 12-15th when ambient temperatures reached 105-109 degrees. The Heat Index values topped out at 100-110 degrees during this period.

Excessive Heat, Wise

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Wise forecast zone
Reported by
Official NWS Observations
Coordinates
33.216, -97.654 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Wise County. During the Excessive Heat Warning period, ambient temperatures topped out between 104-107 degrees. Afternoon Heat Index Values ranged from 104 to 111 degrees.

Excessive Heat, Denton

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Denton forecast zone
Reported by
Official NWS Observations
Coordinates
33.205, -97.117 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Denton County. During the Excessive Heat Warning period, ambient temperatures topped out between 102-106 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Dallas

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Dallas forecast zone
Reported by
Official NWS Observations
Coordinates
32.767, -96.778 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Dallas County. During the Excessive Heat Warning period, ambient temperatures topped out between 100-104 degrees. Afternoon Heat Index Values ranged from 105 to 117 degrees.

Excessive Heat, Tarrant

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Tarrant forecast zone
Reported by
Official NWS Observations
Coordinates
32.772, -97.291 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Tarrant County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-109 degrees. Afternoon Heat Index Values ranged from 105 to 117 degrees.

Excessive Heat, Parker

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Parker forecast zone
Reported by
Official NWS Observations
Coordinates
32.778, -97.805 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Parker County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-109 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Comanche

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Comanche forecast zone
Reported by
Official NWS Observations
Coordinates
31.948, -98.558 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Comanche County. During the Excessive Heat Warning period, ambient temperatures topped out between 104-108 degrees. Afternoon Heat Index Values ranged from 104 to 110 degrees.

Excessive Heat, Erath

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Erath forecast zone
Reported by
Official NWS Observations
Coordinates
32.236, -98.218 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Erath County. During the Excessive Heat Warning period, ambient temperatures topped out between 103-106 degrees. Afternoon Heat Index Values ranged from 100 to 110 degrees.

Excessive Heat, Hood

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Hood forecast zone
Reported by
Official NWS Observations
Coordinates
32.430, -97.832 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hood County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-110 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Somervell

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Somervell forecast zone
Reported by
Official NWS Observations
Coordinates
32.222, -97.774 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Somervell County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-110 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Johnson

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Johnson forecast zone
Reported by
Official NWS Observations
Coordinates
32.379, -97.366 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Johnson County. During the Excessive Heat Warning period, ambient temperatures topped out between 104-106 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Ellis

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Ellis forecast zone
Reported by
Official NWS Observations
Coordinates
32.348, -96.794 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Ellis County. During the Excessive Heat Warning period, ambient temperatures topped out between 102-105 degrees. Afternoon Heat Index Values ranged from 105 to 115 degrees.

Excessive Heat, Hill

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Hill forecast zone
Reported by
Official NWS Observations
Coordinates
31.991, -97.132 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hill County. During the Excessive Heat Warning period, ambient temperatures topped out between 100-102 degrees. Afternoon Heat Index Values ranged from 105 to 114 degrees.

Excessive Heat, Bosque

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Bosque forecast zone
Reported by
Official NWS Observations
Coordinates
31.900, -97.634 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Bosque County. During the Excessive Heat Warning period, ambient temperatures topped out between 104-108 degrees. Afternoon Heat Index Values ranged from 105 to 114 degrees.

Excessive Heat, Hamilton

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
Hamilton forecast zone
Reported by
Official NWS Observations
Coordinates
31.705, -98.111 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Hamilton County. During the Excessive Heat Warning period, ambient temperatures topped out between 105-107 degrees. Afternoon Heat Index Values ranged from 104 to 110 degrees.

Excessive Heat, McLennan

When
August 13, 2:00 PM CST to August 15, 6:00 PM CST
Where
McLennan forecast zone
Reported by
Official NWS Observations
Coordinates
31.552, -97.202 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for McLennan County. During the Excessive Heat Warning period, ambient temperatures topped out between 102-108 degrees. Afternoon Heat Index Values ranged from 105 to 110 degrees.

Excessive Heat, Bell

When
August 14, 2:00 PM CST to August 15, 6:00 PM CST
Where
Bell forecast zone
Reported by
Official NWS Observations
Coordinates
31.038, -97.478 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Bell County. During the Excessive Heat period, ambient temperatures topped out around 105-106 degrees. Afternoon Heat Index Values ranged from 105 to 110 degrees.

Excessive Heat, Coryell

When
August 14, 2:00 PM CST to August 15, 6:00 PM CST
Where
Coryell forecast zone
Reported by
Official NWS Observations
Coordinates
31.391, -97.799 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Coryell County. During the Excessive Heat period, ambient temperatures topped out around 105-106 degrees. Afternoon Heat Index Values ranged from 100 to 110 degrees.

Excessive Heat, Lampasas

When
August 14, 2:00 PM CST to August 15, 6:00 PM CST
Where
Lampasas forecast zone
Reported by
Official NWS Observations
Coordinates
31.196, -98.241 (the zone’s center; the record gives no point)

August 12-16 was the hottest period of the year with an extended Heat Advisory and/or Excessive Heat Warning for Lampasas County. During the Excessive Heat period, ambient temperatures topped out around 105-106 degrees. Afternoon Heat Index Values ranged from 100 to 108 degrees.

Heat, Mills

When
August 15, 6:00 PM CST to August 16, 6:00 PM CST
Where
Mills forecast zone
Reported by
Official NWS Observations
Coordinates
31.495, -98.595 (the zone’s center; the record gives no point)

Mills County was under a Heat Advisory on August 16th when ambient temperatures reached 103 degrees.

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
Excessive Heat
Heat at or above the local excessive heat warning criteria, or heat that caused deaths.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Texas in 2020Every state in 2020This day in weather historyWarnings in Texas, August 2020

Sources

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: 916539, 916541, 916543, 916545, 916546, 916549, 916552, 916554, 916563, 916565, 916567, 916568, 916569, 916570, 916571, 916572, 916574, 916575, 916577, 916578, 916580, 916581, 916582, 916598, 916599, 916600, 916602, 916605, 916606, 916607, 916613, 916618, 916629, 916632, 916643, 916644, 916647, 916648, 916650, 916652, and more.