Heat in Texas, July 9 to 10, 2019

Name: Heat in Texas, July 9 to 10, 2019
Start: 2019-07-09T09:00
End: 2019-07-10T18:00
Location: Texas

July 9 to 10, 2019 · NWS SHV · 12 events in 12 counties and zones

Where it happened

Every event with a place to put it; 12 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: 12

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 SHV wrote it up.

A large upper level ridge of high pressure was anchored over Southcentral Texas into the Lower Mississippi and Tennessee Vallies July 9th and 10th, resulting in an expansive area of sinking air which allowed for afternoon temperatures to climb into the mid 90s each day. Little mixing of dewpoints occurred during this time, with the resultant heat indices ranging from 105-110 degrees across Northeast Texas. A weak cool front and associated upper level shortwave trough moved through the area during the evening of the 10th through the overnight hours into the 11th, allowing for scattered showers and thunderstorms to develop and move through the region. Slightly cooler temperatures and lower humidities were observed in wake of the frontal passage across Northeast Texas on July 11th.

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 Shreveport, LA wrote its last area forecast discussion before the first event at Jul 9, 5:18 AM CST, 3 hours 42 minutes earlier.

Area forecast discussion, Jul 9, 5:18 AM CST, 3 hours 42 minutes before

Area Forecast Discussion
National Weather Service Shreveport LA
618 AM CDT Tue Jul 9 2019

.AVIATION...
VFR conditions to prevail throughout the 12Z TAF pd, although some
brief TEMPO fog/stratus cannot be ruled out. Tstms will be
possible by this aftn, but coverage to be too isold to mention in
TAFs. Otherwise, expect sly winds generally 5-10 kts through the
pd. /12/

&&

.PREV DISCUSSION... /issued 359 AM CDT Tue Jul 9 2019/

SHORT TERM.../Today through Wednesday Night/

Weak upper ridge axis across the Mid MS River Valley to begin a
shift wwd today, as an upper low moves across the High Plains.
Weak flow aloft will allow for isold to sct diurnal convection for
our region both today and Wednesday, with temps creeping upwards.
Dew points in the mid 70s overall will allow heat index values to
reach 105 degrees or better both today and Wednesday areawide, and
a Heat Advisory will be in effect from 10 AM today through 7 PM
Wednesday as a result.

As the ridge reinforces itself over nrn NM late in the pd, a weak,
back-door cold front may inch its way swd as the High Plains trof
sweeps across the Upper Midwest. This front may help to enhance
diurnal convection late Wednesday.

Meanwhile, area of low pressure in the nern Gulf of Mexico fcst to
begin drifting wwd, gaining strength and organization through the
short term. /12/

LONG TERM.../Thursday through Monday Night/

A 594dm upper level ridge will build and close off over the four
corners on Thursday as a Westerlies upper trof moves into the mid
Western states.  A back door cold front will be arriving into our
region with a persistent Northerly low level wind flow and should
help to enhance diurnal convection. This boundary will also spin up
the tropical low on the coast a bit with its lowest pressures early
in the weekend with the GFS not as deep and farther West than the
ECMWF for this timeframe, but better agreement should continue to
unfold in the next day or two.

Meanwhile, our temperatures will begin to ease back late in the week
and over the weekend with increasing cloud cover coming up off the
Gulf with the coastal low modeled to sit just offshore in South LA
early Friday. The system is fairly close on both the GFS and ECMWF
as the core low drifts only to NE TX by early next week. This will
allow for a fairly wet pattern to linger for days with average or
cooler than average temps. As it stands now the WPC 7 day outlook
has 1 to 2 inches for our North and some 3-5 inch contours over our
South and especially in E TX. A large bullseye for higher amounts
extends from Houston to Lake Charles. /24/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  96  76  96  77 /  20  10  20  10
MLU  97  77  97  78 /  20  10  20  10
DEQ  95  75  96  75 /  20  10  20  10
TXK  93  76  95  76 /  20  10  20  10
ELD  96  75  97  75 /  20  10  20  10
TYR  94  76  95  76 /  20  10  20  10
GGG  95  75  95  76 /  20  10  20  10
LFK  95  76  96  77 /  20  10  20  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory from 10 AM this morning to 7 PM CDT Wednesday for
     ARZ050-051-059>061-070>073.

LA...Heat Advisory from 10 AM this morning to 7 PM CDT Wednesday for
     LAZ001>006-010>014-017>022.

OK...Heat Advisory from 10 AM this morning to 7 PM CDT Wednesday for
     OKZ077.

TX...Heat Advisory from 10 AM this morning to 7 PM CDT Wednesday for
     TXZ096-097-108>112-124>126-136>138-149>153-165>167.

&&

12/24

Hazardous weather outlook, Jul 9, 5:03 AM CST, 3 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
603 AM CDT Tue Jul 9 2019

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-101115-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
603 AM CDT Tue Jul 9 2019

This Hazardous Weather Outlook is for southern Arkansas, for
northern Louisiana, for eastern Texas and southeast Oklahoma.

.DAY ONE...Today and Tonight...

Isolated showers and thunderstorms will be possible this afternoon.
A few storms may be strong enough to produce gusty winds and
brief heavy rain through the early evening hours. The hot
temperatures and the humidity will push the heat index to above
105 degrees across much of the region this afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Isolated thunderstorms remain possible again on Wednesday. The
primary threats with any storms this time of year is cloud to
ground lightning, gusty winds and brief heavy downpours. Later
this work week and especially this weekend, thunderstorms will
become much more numerous with heavier rainfall. A potential for
flooding may arise as a tropical system drifts along the northern
Gulf of Mexico. This system is expected over Northeast Texas
early next week, and keeping us wet through mid month.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators and storm spotters will not be needed through tonight.

24

The radar

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

Open the radar archive at this moment

Event by event

12 heat. Local standard time, as filed.

Heat, Red River

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Red River forecast zone
Reported by: ASOS
Coordinates: 33.621, -95.050 (the zone’s center; the record gives no point)

Heat, Bowie

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Bowie forecast zone
Reported by: ASOS
Coordinates: 33.446, -94.423 (the zone’s center; the record gives no point)

Heat, Cass

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Cass forecast zone
Reported by: ASOS
Coordinates: 33.078, -94.344 (the zone’s center; the record gives no point)

Heat, Morris

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Morris forecast zone
Reported by: ASOS
Coordinates: 33.114, -94.733 (the zone’s center; the record gives no point)

Heat, Titus

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Titus forecast zone
Reported by: ASOS
Coordinates: 33.217, -94.966 (the zone’s center; the record gives no point)

Heat, Camp

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Camp forecast zone
Reported by: ASOS
Coordinates: 32.973, -94.978 (the zone’s center; the record gives no point)

Heat, Franklin

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Franklin forecast zone
Reported by: ASOS
Coordinates: 33.176, -95.218 (the zone’s center; the record gives no point)

Heat, Wood

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Wood forecast zone
Reported by: ASOS
Coordinates: 32.786, -95.382 (the zone’s center; the record gives no point)

Heat, Smith

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Smith forecast zone
Reported by: ASOS
Coordinates: 32.375, -95.269 (the zone’s center; the record gives no point)

Heat, Cherokee

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Cherokee forecast zone
Reported by: ASOS
Coordinates: 31.837, -95.165 (the zone’s center; the record gives no point)

Heat, Upshur

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Upshur forecast zone
Reported by: ASOS
Coordinates: 32.736, -94.941 (the zone’s center; the record gives no point)

Heat, Marion

When: July 9, 9:00 AM CST to July 10, 6:00 PM CST
Where: Marion forecast zone
Reported by: ASOS
Coordinates: 32.798, -94.357 (the zone’s center; the record gives no point)

What these are

Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

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

The same day elsewhere

Every storm in Texas in 2019 Every state in 2019 This day in weather history Warnings in Texas, July 2019

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: 833261, 833262, 833263, 833264, 833265, 833266, 833267, 833268, 833269, 833270, 833271, 833272.