Cold Weather Impacts to Continue into Thursday Morning...

The strong arctic cold front that moved through the area yesterday will continue to produce a variety of cold weather conditions across the area through Thursday morning.

...Today...

Wind Chill values will reach about 20 degrees near dawn and then slowly moderate up into the 20s throughout the remainder of the morning hours. A few sprinkles or snow flurries are possible before 8-9am, but no significant precipitation will occur.

Anyone who must be outdoors for extended time periods this morning (i.e., those working outdoors, waiting for a bus, etc.), should take precautions such as wearing loose fitting, layered clothing under a coat for additional insulation. Also be sure to cover the ears and wear gloves to minimize exposure to the cold wind chill temperatures if you will be outside for more than a few minutes during this time period.

Wind Chill values will moderate into the lower 30s by around 12 Noon, and will slowly moderate up into the 30s during the afternoon hours. Wind Chill values will then drop back into the 20s by around 6-7pm this evening.


...Tonight and Wednesday Morning...

Temperatures will be at or below freezing from around 10pm this evening through about 8:30-9:00 am on Wednesday morning. This will result in the first hard, killing freeze across the entire area for this season. Based on the present forecast, readings will be at or below freezing for approximately 10-11 hours during this time period.

Minimum temperatures will likely reach the 28-30 degree range from around 4am through about 6am on Wednesday morning and then slowly moderate to around 32 by 9am. Readings will then moderate into the upper 30s to lower 40s throughout the mid and late morning hours.

Wind Chill values will be in the 20s again on Wednesday morning, mainly before 9-10am.


...Wednesday Night & Thursday...

Another hard freeze is likely during the pre-dawn and early morning hours, with temperatures likely to fall to around 30 degrees at most locations from 5-6am to about 7:30 a.m.

Temperatures will quickly moderate after sunrise, reaching the upper 50s to lower 60s on Thursday afternoon.

Cold Weather Impacts likely Today through Wednesday night/Thursday morning...

A surge of arctic air will bring a variety of cold weather impacts to the area from today through Wednesday night/Thursday morning. Please see below for details by day.

...Today...
Northerly wind will increase to 20-25 mph sustained with frequent gusts to around 35 mph from about 12 Noon through around Midnight tonight. A few peak wind gusts of 35-40 mph are also possible at times mainly during the afternoon hours today.

Present indications suggest the wind will decrease mainly into the 15-25 mph range with occasional gusts to 30 mph around or shortly after Midnight tonight.

The strong, gusty winds combined with slowly falling temperatures (mainly in the 40s) will result in wind chill values in the 30s this afternoon, and the upper 20s by this evening.


...Tuesday...
Wind Chill values will be in the 20s throughout the pre-dawn and much of the morning hours on Tuesday - including the morning rush/transportation period. During this time, minimum Wind Chill values are likely to reach the lower 20s especially from near 4am through about 8am on Tuesday morning.

Anyone who must be outdoors for extended time periods (i.e., working outdoors, waiting for a bus, etc.), should take precautions such as wearing loose fitting, layered clothing under a coat for additional insulation. Also be sure to cover the ears and wear gloves to minimize exposure to the cold wind chill temperatures if you will be outside for more than a few minutes during this time period.

Wind Chill values will moderate into the 30s by around 12 Noon on Tuesday, and will continue at those levels into the afternoon before dropping back into the 20s on Tuesday evening.

Early on Tuesday morning, temperatures will fall to around 33-34 degrees across most of the area. A few spots West of I-35 could briefly touch the freezing mark near dawn on Tuesday.  Further West of the metro, a hard freeze is likely across the Hill Country.


...Wednesday...
Temperatures are expected to be at or below freezing from late Tuesday evening/Tuesday night through about 8am on Wednesday morning. Minimum temperatures will likely reach the 28-30 degree range from around 4am through about 6am or so on Wednesday morning.

With temperatures forecast to be at or below freezing for approximately 10 hours, this will result in the first hard, killing freeze of the season across the area. Readings will quickly moderate during the daytime hours, reaching the lower 50s by Wednesday afternoon.

Wind Chill values will be in the 20s once again for the morning rush period on Wednesday.


...Thursday Morning...
Temperatures will fall to around freezing or just below near dawn on Thursday, with wind chill values in the 20s for the morning commute.

Much Colder Conditions Monday thru Wednesday; First Hard Freeze of Season Likely Wednesday Morning...

A surge of arctic air will bring a variety of cold weather impacts to the area from Monday through Wednesday of this week. Please see below for details by day.

...Monday...
Northerly wind will increase to 20-25 mph sustained with frequent gusts to around 35 mph from about 12 Noon on Monday through around Midnight on Monday night. Present indications suggest the wind will decrease mainly into the 15-25 mph range around Midnight on Monday night.

The strong, gusty winds combined with slowly falling temperatures (mainly in the 40s) will result in wind chill values in the 30s on Monday afternoon, and the upper 20s by Monday evening.


...Tuesday...
Wind Chill values will be in the 20s throughout the pre-dawn and much of the morning hours on Tuesday - including the morning rush/transportation period. During this time, minimum Wind Chill values are likely to reach the lower 20s especially from near 4am through about 8am on Tuesday morning.

Anyone who must be outdoors for extended time periods (i.e., working outdoors, waiting for a bus, etc.), should take precautions such as wearing loose fitting, layered clothing under a coat for additional insulation. Also be sure to cover the ears and wear gloves to minimize exposure to the cold wind chill temperatures if you will be outside for more than a few minutes during this time period.

Wind Chill values will moderate into the 30s by 11am to 12 Noon on Tuesday, and will continue at those levels (and perhaps reach the lower 40s) into Tuesday afternoon.


...Wednesday...
Temperatures are expected to reach freezing from well before dawn on Wednesday morning through about 7:30 am on Wednesday morning. Minimum temperatures will likely reach the 28-30 degree range from around 4am through about 6am on Wednesday morning.

This will likely be the first freeze, as well as a hard freeze, of the season across the area. Readings will quickly moderate during the daytime hours, reaching the lower to middle 50s by Wednesday afternoon.

Cold weather early-mid week next week -- likely including the first freeze of the season on Wednesday...

Another surge of arctic air will bring a variety of cold weather conditions to the area from Monday through Wednesday of next week:

...Monday - Strong, Gusty Winds and Falling Wind Chill Values...

Northerly wind will increase to 20-25 mph sustained with frequent gusts to around 35 mph from about 11am to 10pm on Monday. Present indications suggest the wind will decrease mainly into the 15-25 mph range around 10pm on Monday evening.

The strong, gusty winds combined with slowly falling temperatures (mainly in the 40s) will result in wind chill values in the 30s on Monday afternoon, and the upper 20s by Monday evening.


...Tuesday - Wind Chill Values in the lower 20s for the a.m. Rush...

Wind Chill values will be in the 20s throughout the pre-dawn and first part of the morning hours on Tuesday - including the morning rush/transportation period. During this time, minimum Wind Chill values are likely to reach the lower 20s especially from near 4am to about 8am on Tuesday morning.

Anyone who must be outdoors for extended time periods (i.e., working outdoors, waiting for a bus, etc.), should take precautions such as wearing loose fitting, layered clothing under a coat for additional insulation. Also be sure to cover the ears and wear gloves to minimize exposure to the cold wind chill temperatures if you will be outside for more than a few minutes during this time period.


...Wednesday - Likely the First Freeze of the Season...

Temperatures are expected to reach freezing from near 4am through about 7am on Wednesday morning. A few locations may also see readings drop 1-2 degrees below the freezing mark, especially during the 6 o'clock hour on Wednesday morning.

This will likely be the first freeze of the season across the area. Readings will quickly moderate during the day, reaching the middle and upper 50s by Wednesday afternoon.


Be sure to take some time this weekend to prepare for the next round of cold weather...

Weather for Primary Trick-Or-Treat Time Still Questionable...

A cold front will move across the region this afternoon and evening, causing shower and thunderstorm activity both along it and well behind it. Ahead of the front this morning into the midday hours, areas of drizzle and/or light rain can be expected, along with some scattered showers. As the front approaches later this afternoon, we expect showers and thunderstorms to develop and/or increase across the local area by around 4-5pm and continue into the mid-evening hours before decreasing between 8pm and 10pm. Scattered showers and isolated thunderstorms will then be possible into the pre-dawn hours of Thursday morning, but will be less numerous compared to the late afternoon and evening hours today.

Locally heavy downpours of rain and lightning can be expected at times with any thunderstorms especially later this afternoon into this evening. A few strong thunderstorms are also possible, which could produce strong, gusty winds and/or spotty hail in some parts of the area. At this time the most likely time period for any stronger activity locally appears to be from around or shortly after 4-5pm through about 8pm.

Please also note that strong to severe thunderstorm activity is likely to be even more numerous to the immediate East of the local area this evening.

Regarding the threat of locally heavy downpours across the local area, please keep in mind that ground conditions remain very damp to wet from recent rainfall. Any concentrated areas of locally heavy downpours could result in minor flooding of low lying and poor drainage areas at times from late this afternoon into this evening.

We will continue monitoring the situation and issue updates as conditions warrant.

Weather May Provide More Tricks than Treats for Halloween...

A cold front will move across the region on Wednesday afternoon, causing shower and thunderstorm activity both along it and well behind it into Wednesday evening. At this time we expect showers and thunderstorms to be most numerous across the local area from around/shortly after 4-5pm through about 10pm on Wednesday, and then decrease in coverage from after 10pm Wednesday on into the pre-dawn hours of Thursday morning.

Locally heavy downpours of rain and lightning can be expected at times with any thunderstorms. A few strong thunderstorms are also possible, which could produce strong, gusty winds and/or spotty hail in some parts of the area. At this time the most likely time period for any stronger activity locally appears to be from around or shortly after 4-5pm through about 8-9pm.

Please also note that strong to severe thunderstorm activity is likely to be even more numerous to the immediate East and Northeast of the local area on Wednesday afternoon and evening.

Regarding the threat of locally heavy downpours across the local area, please keep in mind that ground conditions remain very damp to wet from recent rainfall. Any concentrated areas of locally heavy downpours could result in minor flooding of low lying and poor drainage areas at times from late Wednesday afternoon into Wednesday evening.

We will continue monitoring the situation and issue updates as conditions warrant.

Rain To Increase Throughout the Day Today - Possible Issues This Afternoon into Tonight...

Periods of drizzle and light rain will continue across the area this morning. Most of this precipitation will be very light to light in intensity. Rain is expected to increase in coverage and intensity during the afternoon hours today and continue into early this evening before ending from West to East across the area by 8-9pm. Moderate to locally heavy downpours of rain are possible at times with some of the activity during the afternoon and/or early evening hours today. An isolated thunderstorm also cannot be ruled out during the afternoon or early evening hours.

Average additional rainfall of 1.0-1.5 inches can be expected across most of the area through 8-9pm today, with locally higher amounts possible in some spots.

Due to saturated ground conditions and continued higher than normal stream levels across much of the area, ponding of water and/or minor flooding is possible at times mainly this afternoon and/or evening in low lying areas such as low water crossings, etc. in some parts of the area. Areas that are most susceptible include locations that received heavier rainfall earlier this week, as well as areas where any moderate to heavier showers may recur at times during the afternoon and/or early evening hours today.

The Colorado and San Gabriel rivers and tributaries will need to be monitored for possible rises mainly this afternoon into tonight due to rainfall that occurs upstream during the day today. 

As we work through the day today, we'll be able to identify any concentrated areas of enhanced rainfall (if any) on the upstream portions of these rivers which should make it easier to anticipate where rises may occur later on.

Please remember that larger rivers will continue rising well after the upstream rains end, as runoff flows downstream. Hence the reason we mention that these streams will need to be monitored into the nighttime hours tonight.

We will continue to monitor the situation and issue updates as conditions warrant.