Lancaster, Texas Weather Conditions

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Current Conditions

  • 91°
  • Clear
  • Wind: Calm
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 66°
  • Pressure: 30.02 in. +
  • Heat Index: 93

Nowcast

  • Now as of 4:40 PM CDT on July 23, 2014

    A large area of rain and clusters of thunderstorms...over southeastern Oklahoma...will continue moving south at 50 mph through 700 PM. This rain and storms should effect North Texas areas along and east of a line from Sherman to Kaufman and Gun Barrel City through sunset. Very strong outflow winds up to 50 mph or higher may occur where the stronger thunderstorms tracks through the northeast section of the North Texas. Also...dangerous cloud to ground lightning and some hail may occur. A Severe Thunderstorm Watch is in effect northeast of a Sherman to McKinney to Emory line until 10 PM. Elsewhere...temperatures should remain in the 90s through sunset while winds remain generally northeast at 10 mph or less. Areas east of I-35 and I-45 will likely see increasing high clouds and winds may increase ahead of the approaching storms.

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Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
88°
79°
79°
75°
77°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 99 °
  • Low: 73 °
  • Chance of a Thunderstorm
  • Thursday
  • Partly Cloudy
  • High: 97 °
  • Low: 73 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 97 °
  • Low: 70 °
  • Clear
  • Saturday
  • Partly Cloudy
  • High: 99 °
  • Low: 72 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 99 °
  • Low: 72 °
  • Clear

Forecast for Lancaster, Texas

Updated: 4:00 PM CDT on July 23, 2014

Heat advisory in effect from noon Thursday to 10 PM CDT Friday...
  • Wednesday

    Partly cloudy. Fog early. High of 99F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then clear. Low of 73F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Partly cloudy. High of 97F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 73F. Winds from the SE at 5 to 10 mph.

  • Friday

    Clear. High of 97F. Winds from the South at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 70F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy in the morning, then clear. High of 99F. Winds from the SSW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 72F. Winds from the South at 5 to 10 mph.

  • Sunday

    Clear. High of 99F. Winds from the SSW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 72F. Winds from the South at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 95F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds from the ENE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds from the NE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds from the East at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. High of 84F. Winds from the East at 5 to 10 mph. Chance of rain 60%.

  • Wednesday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 61F. Winds from the East at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.9 in. possible.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear. Fog overnight. Low of 63F. Winds less than 5 mph.

  • Friday

    Clear. High of 84F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 66F. Winds less than 5 mph.

  • Saturday

    Clear. High of 86F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 68F. Winds less than 5 mph.

  • Sunday

    Clear. High of 91F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 68F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Heat Advisory  Statement as of 2:34 PM CDT on July 23, 2014


... Heat advisory in effect from noon Thursday to 10 PM CDT
Friday...

The National Weather Service in Fort Worth has issued a heat
advisory... which is in effect from noon Thursday to 10 PM CDT
Friday.

* Location... all areas along and east of a line from Graham to
Killeen... including the Sherman... Dallas Fort
Worth... Waco... Temple and Killeen areas.

* Temperature... high temperatures from around 100 to 105 degrees
with heat index readings reaching the 105 to 108 degree range.

* Impacts... those exposed to the extreme heat over a prolonged
period may develop heat related illnesses.

Precautionary/preparedness actions...

A heat advisory means that afternoon heat index values are
expected to meet or exceed 105 degrees for at least two
consecutive days.

Be sure to check on persons with health problems and the
elderly... as they are the most susceptible to heat exhaustion and
heat stroke. Never leave Young children or pets in an enclosed
vehicle... even for a short time... as temperatures can quickly
rise to life threatening levels.

Take extra precautions if you work or spend time outside. When
possible... reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency - call 911.





 Air Quality Alert  Statement as of 1:36 PM CDT on July 23, 2014


... Ozone action day...

The Texas commission on environmental quality (tceq) has issued
an ozone action day for the Dallas-Fort Worth area for Thursday,
July 24, 2014.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Thursday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.

For more information on ozone:

Ozone: the facts (www.Tceq.Texas.Gov/goto/ozonefacts)

Air north texas: (www.Airnorthtexas.Org)

EPA air now
(www.Airnow.Gov/index.Cfm?Action.Local_state&stateid=45&tab=0)

Take care of Texas (www.Takecareoftexas.Org)

North central Texas Council of governments air quality
(www.Nctcog.Org/trans/air/index.Asp)



136 PM CDT Wed Jul 23 2014

... Ozone action day...

The Texas commission on environmental quality (tceq) has issued
an ozone action day for the Dallas-Fort Worth area for Thursday,
July 24, 2014.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Thursday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.

For more information on ozone:

Ozone: the facts (www.Tceq.Texas.Gov/goto/ozonefacts)

Air north texas: (www.Airnorthtexas.Org)

EPA air now
(www.Airnow.Gov/index.Cfm?Action.Local_state&stateid=45&tab=0)

Take care of Texas (www.Takecareoftexas.Org)

North central Texas Council of governments air quality
(www.Nctcog.Org/trans/air/index.Asp)



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Werner Ent. Dallas, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 92.0 °F Dew Point: 71 °F Humidity: 50% Wind: SSE at 4.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: DDR Longhorns Red Oak, Texas, Red Oak, TX

Updated: 7:14 PM CDT

Temperature: 90.1 °F Dew Point: 70 °F Humidity: 52% Wind: ENE at 2.0 mph Pressure: 29.45 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Johnson Lane, Ovilla, TX

Updated: 7:11 PM CDT

Temperature: 90.3 °F Dew Point: 69 °F Humidity: 50% Wind: NE at 3.8 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Windmill Ridge, Ovilla, TX

Updated: 5:07 PM CDT

Temperature: 94.9 °F Dew Point: 68 °F Humidity: 42% Wind: WSW at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Sleepy Hollow II, Cedar Hill, TX

Updated: 7:11 PM CDT

Temperature: 91.6 °F Dew Point: 69 °F Humidity: 48% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Heritage Ct, Midlothian, TX

Updated: 7:02 PM CDT

Temperature: 91.2 °F Dew Point: 69 °F Humidity: 49% Wind: East at 1.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Curtis Addn, Midlothian, TX

Updated: 7:14 PM CDT

Temperature: 90.7 °F Dew Point: 70 °F Humidity: 51% Wind: East at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Ellis County, Texas, Waxahachie, TX

Updated: 7:14 PM CDT

Temperature: 91.8 °F Dew Point: 70 °F Humidity: 49% Wind: WNW at 2.7 mph Pressure: 29.85 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: 20 Summit Pl, Cedar Hill, TX

Updated: 7:14 PM CDT

Temperature: 89.8 °F Dew Point: 69 °F Humidity: 50% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Bryan Parkway, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 91.0 °F Dew Point: 69 °F Humidity: 48% Wind: NNE at 2.1 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Lakeridge, Cedar Hill, TX

Updated: 7:14 PM CDT

Temperature: 96.3 °F Dew Point: 73 °F Humidity: 47% Wind: NNE at 1.3 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Spring Creek Grove, Waxahachie, TX

Updated: 7:09 PM CDT

Temperature: 92.5 °F Dew Point: 73 °F Humidity: 54% Wind: NNW at 4.2 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: 102 °F Graphs

Location: Enclave at White Rock, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 91.0 °F Dew Point: 82 °F Humidity: 77% Wind: NNW at 2.0 mph Pressure: 31.05 in Hourly Precipitation: 0.00 in Heat Index: 115 °F Graphs

Location: NE Midlothian, Midlothian, TX

Updated: 7:14 PM CDT

Temperature: 91.6 °F Dew Point: 70 °F Humidity: 49% Wind: ENE at 2.9 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Estates of Garden Valley, Waxahachie, TX

Updated: 7:11 PM CDT

Temperature: 92.3 °F Dew Point: 64 °F Humidity: 40% Wind: ENE at 4.2 mph Pressure: 29.81 in Hourly Precipitation: - Heat Index: 94 °F Graphs

Location: Road / Bridge 1 Ellis County TX, Palmer, TX

Updated: 7:14 PM CDT

Temperature: 91.8 °F Dew Point: 70 °F Humidity: 49% Wind: South at 4.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Road / Bridge 4 Ellis County TX, Midlothian, TX

Updated: 7:14 PM CDT

Temperature: 91.0 °F Dew Point: 68 °F Humidity: 47% Wind: ENE at 2.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: MesoWest MIDLOT TX US UPR, Midlothian, TX

Updated: 3:50 PM CDT

Temperature: 92 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Lakewood, Dallas, TX

Updated: 7:10 PM CDT

Temperature: 92.3 °F Dew Point: 76 °F Humidity: 59% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Little Forest Hills, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 91.8 °F Dew Point: 71 °F Humidity: 51% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: East Dallas, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 90.9 °F Dew Point: 72 °F Humidity: 54% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Gingerbread Ln, Waxahachie, TX

Updated: 7:06 PM CDT

Temperature: 95.2 °F Dew Point: 69 °F Humidity: 43% Wind: East at 2.7 mph Pressure: 30.00 in Hourly Precipitation: - Heat Index: 101 °F Graphs

Location: West Highland Park, Dallas, TX

Updated: 7:14 PM CDT

Temperature: 92.5 °F Dew Point: 71 °F Humidity: 50% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: MesoWest MARITH TX US UPR, Mesquite, TX

Updated: 5:50 PM CDT

Temperature: 99 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Vivian Drive, Waxahachie, TX

Updated: 7:00 PM CDT

Temperature: 90.7 °F Dew Point: 68 °F Humidity: 48% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Heat Index: 95 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Fort Worth Texas 
618 PM CDT Wednesday Jul 23 2014 


Aviation... 
concerns...isold-sct thunderstorms and rain over parts of the metroplex and outflow 
winds this evening. 


An upper level high was parked over southeastern Colorado with 
northeasterly flow aloft over North Texas. A shortwave embedded in 
the upper flow was driving a convective line...currently just 
south of the Red River...southward over areas east of I-35. Some of 
these storms could reach some of the metroplex terminals between 
1-3z. Gusty winds both with and behind the storms could increase 
winds at kdal/kdfw/kgky 03020g30kts for an hour or two. 


Once the storms dissipate or move away later this evening...it 
will be VFR with light winds overnight and northeast winds 5-10 
knots veering to southeast late. 75 


&& 




Previous discussion... /issued 243 PM CDT Wednesday Jul 23 2014/ 
thunderstorms have begun to develop northeast of the region in 
proximity of a weak cold front and Stout shortwave. Model trends 
indicate that convection will be on the increase to our 
northeast...with the northeast flow regime driving this activity 
southwestward toward North Texas. At the current rate of 
development and movement...convection should begin to cross over 
into Lamar County near Paris and surrounding areas around 6 PM or 
so. The time of day would suggest that some of these storms will 
be strong to possible severe...with damaging winds being the main 
threat as they affect the northeastern counties. A weakening 
trend is expected as cells move farther southwest...due to the 
waning of surface heating and also to the increasing subsidence 
from the dominant ridge to the west. Still...low probability of precipitation will be 
maintained in the metroplex and surrounding areas through midnight 
or so....with activity dissipating thereafter. 


A low chance of thunderstorms will arise again Thursday as a weak 
front sags south to near the I-20 corridor...providing focus for 
isolated development...mainly in the afternoon. West of I-35...it 
appears that subsidence from the upper ridge will shut off any 
attempt for convective development. 


The primary weather concern over the next few days will be the 
increasing temperatures and uncomfortable heat. After carefully 
running and finalizing the temperature/dewpoint forecast...the 
resulting apparent temperature grids are indicating heat indices 
fairly widespread in the 105 to 108 degree range both Thursday afternoon 
and Friday afternoon. The only exception to this is the 
southwestern counties where drier conditions should keep the heat 
index below 105. We will go ahead and include a heat advisory for 
most of North Texas...excluding the areas west of a Mineral Wells 
to Gatesville line where conditions should remain below criteria. 
The advisory will be in effect from noon Thursday until 9 PM 
Friday night. Please use caution when participating in outdoor 
activities...stay hydrated...and schedule strenuous activities for 
early in the day when possible. 


The weather pattern will begin to shift on Monday...as an upper 
trough deepens over the eastern states and the upper ridge slides 
to the west. This will place North Texas in a strong north to 
northwest flow regime. This pattern will send another rare July 
cold front south from the plains across the Red River on Monday. A 
chance of rain can be expected Monday and Tuesday associated with 
the front....with cooler conditions expected for most of next week 
behind the front. 


30 


&& 






Preliminary point temps/pops... 
Dallas-ft. Worth, Texas 79 100 80 103 79 / 20 10 10 5 0 
Waco, Texas 75 100 77 101 76 / 10 10 10 5 0 
Paris, Texas 75 95 73 99 75 / 40 20 10 5 0 
Denton, Texas 76 100 77 103 78 / 20 10 10 5 0 
McKinney, Texas 76 98 77 102 77 / 30 10 10 5 0 
Dallas, Texas 79 100 80 103 78 / 20 10 10 5 0 
Terrell, Texas 76 99 76 101 76 / 20 10 10 5 0 
Corsicana, Texas 76 99 77 100 76 / 20 10 10 5 0 
Temple, Texas 74 99 76 100 76 / 10 10 10 5 0 
Mineral Wells, Texas 75 101 76 103 76 / 20 10 10 5 0 


&& 


Forward watches/warnings/advisories... 
heat advisory from noon Thursday to 10 PM CDT Friday for 
txz091>095-100>107-117>123-131>135-144>148-158>162-174-175. 




&& 


$$ 


75/ 



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