Weather

Severe storms possible into Saturday evening

April 18th, 2015 at 3:20 pm by under Weather

Severe storms began developing just west of the Hill Country by mid-afternoon Saturday.  Tune to KXAN-TV for live severe storm coverage through the evening.

Click for latest Composite Reflectivity radar image from the Austin/San Antonio, TX radar and current weather warnings

A severe thunderstorm watch for the Hill Country, Edwards Plateau, and northern Rio Grande Plains sections of South Central Texas is in effect until 9 PM CDT. This does not include metro Austin or San Antonio. The main threats will be wind gusts up to 70 to 70 mph and hail up to golf ball size. Localized flash flooding may also occur in areas where heavy rainfall occurred yesterday. Tornadoes are less likely, but cannot be ruled out.

There is an enhanced-slight risk of severe storms for most of South-Central Texas with the highest confidence in the gray hatched area. The main threats will be hail to the size of half dollars and and damaging winds up to 60 mph. Locally heavy rainfall will also be possible which may lead to isolated flooding concerns. The best timing for severe weather will be in the 3pm to 11pm range.
From the National Weather Service:

Headline:

…Slight Risk of Severe Thunderstorms and Flash Flooding Today Across South Central Texas… (more…)


Slight chance of severe weather continues

April 18th, 2015 at 10:34 am by under Weather

Here’s the latest update from our friends at the National Weather Service office in New Braunfels:

1

Good Morning South-Central Texas Partners,

Headline:

…Slight Risk of Severe Thunderstorms and Flash Flooding Today Across South Central Texas…

SLIGHT

Area of Concern:

Slight risk for all of South Central Texas, with the greatest risk northeast of a Kerrville to New Braunfels to Cuero line including the Austin metro area.

Threats & Impacts:

Winds:  Damaging Winds up to 60 MPH. Could cause damage to powerlines, trees, and small structures.

Hail:  Up to Quarter to Half-Dollar Sized Hail (1.0-1.25″).

Rainfall:  Average rainfall of 0.25-0.5 inches, with isolated spots up to 1-2 inches. Flash flooding will be possible in areas that have received the greatest rainfall over the past 48 hours. 

Tornadoes:  Isolated, brief tornadoes are possible.

Timing and Overview:

Scattered strong to severe thunderstorms are possible this afternoon through mid-evening as the strong upper level low pressure system in the Rockies begins to move east. Short-term models are coming into better agreement that scattered thunderstorms will most likely develop in west Texas, the Hill Country, and high terrain of Mexico this afternoon before moving into the I-35 corridor and areas east during the late afternoon and evening hours. The greatest risk of severe thunderstorms will be northeast of a Kerrville to New Braunfels to Cuero line, but there is still an isolated threat southwest of this line into San Antonio and the Rio Grande Plains. The primary threats will be damaging wind and flash flooding, though an isolated brief tornado is possible. Flash flooding is still a threat in areas that have already received a few inches of rain due to saturated soils in those areas, but storms should be lower in coverage and move faster than yesterday. See attached images. 

Confidence:

  • Severe Chances: Moderate
  • Flash Flooding Chances: Low-Moderate

Additional Information Resources:

·         NWS Austin / San Antonio Contact Numbers:  800-292-5508 or 830-606-3617

·         NWS Austin / San Antonio Webpage:  http://www.weather.gov/sanantonio

·         Storm Prediction Center:  http://www.spc.noaa.gov/

·         Online Severe Weather Reporting:  http://www.srh.noaa.gov/StormReport/SubmitReport.php?site=EWX

Request for Information:

Please relay severe weather reports and/or photo’s of severe weather to sr-ewx.alert@noaa.gov


Slight risk of more storms Saturday

April 17th, 2015 at 10:55 pm by under Weather

A slight risk for severe thunderstorms will continue into Saturday across south central Texas. The main concern will be large hail, damaging winds, and flash flooding. Although the timing of thunderstorms is uncertain, they are most likely during the morning and afternoon hours.

Severe weather threat continues Friday evening

April 17th, 2015 at 4:00 pm by under Weather
EASTERN COUNTIES OF BASTROP, CALDWELL, FAYETTE AND LEE HAVE BEEN ADDED TO SEVERE T-STORM WATCH, EFFECTIVE UNTIL 10 PM….

Severe Thunderstorm Watch for the Rio Grande Plains, Hill Country, and I-35 corridor including Austin and San Antonio metro areas until 7 PM CDT. The main threat will be wind gusts up to 60 mph and hail up to golf ball size. There is also a chance of flash flooding and an isolated brief tornado.

A Flash Flood Watch is in effect for locations east of Interstate 35. These locations received up to 5 inches of rain yesterday and an additional 1 to 2 inches is possible today with some spots reaching up to 4 inches.

Higher risk of severe storms Friday

April 16th, 2015 at 9:53 pm by under Weather

While we saw a few scattered strong to severe storms Thursday, the Storm Prediction Center has placed much of the KXAN viewing area in the “enhanced” risk area for severe storms Friday. Below you’ll find a chart describing what that means.

4-16 Severe risk Friday

Severe Risks Chart

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1230 PM CDT THU APR 16 2015

VALID 171200Z – 181200Z

…THERE IS AN ENH RISK OF SVR TSTMS ACROSS PORTIONS OF CENTRAL AND
SRN TX…

…THERE IS A SLGT RISK OF SVR TSTMS SURROUNDING THE ENHANCED RISK
AREA…AND INCLUDING PORTIONS OF SWRN LA…

…THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF THE CENTRAL AND
SRN HIGH PLAINS AND INTO CENTRAL KS…

(more…)


Severe T-storm Watch issued; storms increasing

April 16th, 2015 at 2:47 pm by under Weather

4-16 ST WATCH

URGENT – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 60
NWS STORM PREDICTION CENTER NORMAN OK
220 PM CDT THU APR 16 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTH CENTRAL TEXAS TO THE MIDDLE TEXAS COASTAL PLAIN
COASTAL WATERS

* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 220 PM UNTIL
1000 PM CDT.

* PRIMARY THREATS INCLUDE…
SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
TO 2 INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

SUMMARY…CLUSTERS OF STRONG/SEVERE STORMS WILL CONTINUE TO DEVELOP
THROUGH THE AFTERNOON FROM N TX SWD TO THE MIDDLE TX COAST.  THE
ENVIRONMENT FAVORS SOME EMBEDDED SUPERCELL STRUCTURES WITH AN
ATTENDANT RISK FOR LARGE HAIL AND DAMAGING WINDS. (more…)


Severe Weather Threat: Thursday and Friday

April 16th, 2015 at 12:43 pm by under Weather

Just as the sticky, humid feel has returned to Central Texas, the chance for severe weather has jumped back into the mix.  This chance is not confined to just today.  In fact, the possiblility of severe weather will come our way Friday afternoon and Saturday afternoon as well.  Current weather models are even expecting Friday’s threat to be the greatest we will see over the three day stretch.  Here are the latest details from the Storm Prediction Center, the National Weather Service, and those of us in the First Warning Weather Center.

Remember…. the KXAN Weather App is a great tool to stay ahead of the severe weather threat.  Interactive Radar, our latest video forecasts, plus real time severe weather alerts, are just a few tools on our app that will help keep you and your family safe.

1 SPC

(more…)


Heat burst observed in San Angelo this morning

April 16th, 2015 at 7:40 am by under Weather

heat burst

 

Via Twitter — @wall_cloud (Mike Johnson): Heatburst in #SanAngelo. Wind of 49 mph with 14 deg temp jump near 7AM. Trace is from Mertzon mesonet site. #txwx

A rare phenomenon was observed under dying thunderstorms this morning in West Texas.

(more…)


Risk of severe storms Thursday-Friday

April 15th, 2015 at 3:38 pm by under Weather

There is a slight risk of severe thunderstorms across all most of south central Texas on Thursday, particularly south of a line from Burnet to Round Rock to Lexington. The main concerns will be damaging wind gusts and large hail. A brief tornado can not be ruled out as well. In addition, these storms may also produce locally heavy downpours of 1 to 3 inches.

(National Weather Service)

Headline:

…Severe Thunderstorms Possible Thursday-Friday across most of South-Central Texas…

Area of Concern:

All of South Central Texas.

Threats & Impacts:

Winds:  Damaging Winds up to 60 MPH. Could cause damage to powerlines, trees, and small structures.

Hail:  Up to Quarter Sized Hail.

Rainfall:  Average rainfall of 1-2 inches, with isolated spots up to 3-4 inches through Friday.

Tornadoes:  Isolated, brief tornadoes are possible.

Timing and Overview:

A strong upper-level storm system in the Rockies will approach South Central Texas tonight into this weekend, causing strong to severe thunderstorms as early as tonight in the Rio Grande Plains and tomorrow morning in the Hill Country, I-35 corridor, and Coastal Plains. The timing and evolution of storms still remains very uncertain, but current thinking is that smaller disturbances ahead of the larger scale upper-level storm system from the west and a weak surface boundary closer to the coast will help these storms develop during the late morning to early afternoon time-frame on Thursday. Storms that occur after this will depend on previous storms and additional disturbances moving in from the west. Damaging winds up to 60 MPH are the biggest threat, but there will be the possibility of large hail and isolated, brief tornadoes in the strongest cells. Locally heavy rainfall may also be concern due to recent rainfall along and south of Highway 90 and Interstate 10. Confidence in timing and impacts will likely increase based on what happens tonight storms and with future model updates. Please see the attached image for the current slight risk area.

Confidence:

  • Severe Chances: Low-Moderate
  • Rain Chances: Moderate-High

NASA celebrates Earth Day with public events, online activities

April 14th, 2015 at 2:38 pm by under Weather
NASA Administrator Charles Bolden speaks to students at the 2014 Earth Day events at Union Station in Washington. Image Credit: NASA/Aubrey Gemignani

NASA Administrator Charles Bolden speaks to students at the 2014 Earth Day events at Union Station in Washington.
Image Credit: NASA/Aubrey Gemignani

NASA will celebrate the 45th annual Earth Day April 17-22 with a variety of live and online activities to engage the public in the agency’s mission to better understand and protect our home planet.

NASA uses the vantage point of space to increase our understanding of our home planet, improve lives and safeguard our future. The agency develops new ways to observe and study Earth’s interconnected natural systems with long-term data records, shares this unique knowledge, and works with institutions around the world to gain new insights into how our planet is changing.

Earth Day in the Nation’s Capital (more…)