Weather Facts

Weather Facts

  • Weather Facts

  • Wednesday, May 22 2013 6:56 PM EDT2013-05-22 22:56:12 GMT
    In the wake of the recent tornado outbreaks, Julie Wynn of Austin was wondering about how the enhanced Fujita scale works and how we estimate the tornado winds. A tornado's strength cannot be determined
    In the wake of the recent tornado outbreaks, Julie Wynn of Austin was wondering about how the enhanced Fujita scale works and how we estimate the tornado winds. A tornado's strength cannot be determined
  • Thursday, May 16 2013 6:28 PM EDT2013-05-16 22:28:06 GMT
    This time of year we talk about the dry line a bunch. Elizabeth Kramer of Austin was wondering what it is and how it makes storms? The dry line is a narrow boundary separating hot and dry air from very
    This time of year we talk about the dry line a bunch. Elizabeth Kramer of Austin was wondering what it is and how it makes storms? The dry line is a narrow boundary separating hot and dry air from very
  • Thursday, May 2 2013 7:06 PM EDT2013-05-02 23:06:09 GMT
    Storm season is here! So what determines when a storm can reach severe status? We'll talk about the difference between a watch and a warning. Here in Central Texas we get an average of 40 to 50 storm days
    Storm season is here! So what determines when a storm can reach severe status? We'll talk about the difference between a watch and a warning. Here in Central Texas we get an average of 40 to 50 storm days
  • Thursday, April 25 2013 6:50 PM EDT2013-04-25 22:50:22 GMT
    This week's weather questions come from Dave Meck. What is the difference between dew point temperature and humidity and which one should we use to get a better handle on how much moisture is in the air? Humidity
    This week's weather questions come from Dave Meck. What is the difference between dew point temperature and humidity and which one should we use to get a better handle on how much moisture is in the air? Humidity
  • Wednesday, April 17 2013 6:39 PM EDT2013-04-17 22:39:18 GMT
    This week we got a summer preview with highs in the 90s. Yvonne Johnson was wondering what this summer will look and feel like in a couple of months. The severity of the summer heat all depends on how
    This week we got a summer preview with highs in the 90s. Yvonne Johnson was wondering what this summer will look and feel like in a couple of months. The severity of the summer heat all depends on how
  • Wednesday, April 10 2013 6:56 PM EDT2013-04-10 22:56:01 GMT
    Spring is here and so is storm season. Days before a severe weather outbreak the storm prediction center will issue severe weather outlooks. Today we'll look at the different types and discuss what they mean.
    Spring is here and so is storm season. Days before a severe weather outbreak the storm prediction center will issue severe weather outlooks. Today we'll look at the different types and discuss what they mean.
  • Wednesday, April 3 2013 6:36 PM EDT2013-04-03 22:36:19 GMT
    Gabe McDaid was wondering if tornadoes in the northern hemisphere can really turn clockwise like they mentioned on the FOX show Bones. Before we can answer this weather question we first must understand
    Gabe McDaid was wondering if tornadoes in the northern hemisphere can really turn clockwise like they mentioned on the FOX show Bones. Before we can answer this weather question we first must understand
  • Wednesday, March 27 2013 6:38 PM EDT2013-03-27 22:38:37 GMT
    In order for hail to form there has to be enough moisture and instability in the atmosphere. The more unstable the air is the stronger the updrafts or rising currents. This vertical motion is responsible
    In order for hail to form there has to be enough moisture and instability in the atmosphere. The more unstable the air is the stronger the updrafts or rising currents. This vertical motion is responsible
  • Wednesday, March 20 2013 6:39 PM EDT2013-03-20 22:39:49 GMT
    Spring began Wednesday. A few of you have emailed FOX 7 about if we're done with the freezes, will it be a very warm season and will we get our normal spring rain to see some improvements in the drought.
    Spring began Wednesday. A few of you have emailed FOX 7 about if we're done with the freezes, will it be a very warm season and will we get our normal spring rain to see some improvements in the drought.
  • Wednesday, March 6 2013 6:48 PM EST2013-03-06 23:48:23 GMT
    Shirley Thompson of Austin was wondering if the recent wind events are normal and why they are happing so much in the last few weeks. So what produces wind? The difference in air pressure is the answer.
    Shirley Thompson of Austin was wondering if the recent wind events are normal and why they are happing so much in the last few weeks. So what produces wind? The difference in air pressure is the answer.
  • Wednesday, February 27 2013 6:33 PM EST2013-02-27 23:33:45 GMT
    After a meteor exploded in the sky above Russia a few weeks ago causing a shockwave that blew out countless windows and injured hundreds of people. Many of you emailed me and was wondering what the difference
    After a meteor exploded in the sky above Russia a few weeks ago causing a shockwave that blew out countless windows and injured hundreds of people. Many of you emailed me and was wondering what the difference
  • Wednesday, February 20 2013 6:44 PM EST2013-02-20 23:44:12 GMT
    Couple of weeks ago a rare sight showed up in our afternoon sky. Many viewers sent in interesting pictures of rainbows in the clouds when it wasn't raining. So today we'll show you what causes these fire
    Couple of weeks ago a rare sight showed up in our afternoon sky. Many viewers sent in interesting pictures of rainbows in the clouds when it wasn't raining. So today we'll show you what causes these fire
  • Wednesday, February 13 2013 6:39 PM EST2013-02-13 23:39:35 GMT
    The peak time for tornadoes is usually from April to June. But this year we're getting a jump start to the tornado season. Sixty-seven confirmed tornadoes already most of them were weak twisters with winds
    The peak time for tornadoes is usually from April to June. But this year we're getting a jump start to the tornado season. Sixty-seven confirmed tornadoes already most of them were weak twisters with winds
  • Thursday, February 7 2013 6:47 PM EST2013-02-07 23:47:46 GMT
    Punxsutawney Phil predicted an early spring since he didn't see his shadow last weekend. He may actually be correct this year. The last three weeks the highs and lows have been well above average. So
    Punxsutawney Phil predicted an early spring since he didn't see his shadow last weekend. He may actually be correct this year. The last three weeks the highs and lows have been well above average. So
  • Wednesday, January 23 2013 6:36 PM EST2013-01-23 23:36:34 GMT
    In the last month we've had two rounds of wintry mix in the area. Donna White wonders what the difference is between freezing rain, sleet and snow and how does all these kinds of precipitation form? What
    In the last month we've had two rounds of wintry mix in the area. Donna White wonders what the difference is between freezing rain, sleet and snow and how does all these kinds of precipitation form? What
  • Wednesday, December 19 2012 7:39 PM EST2012-12-20 00:39:14 GMT
    Lately rain has been hard to come by. Gary from Leander was wondering the last time we had an above average year for rainfall, what is causing less rain events and are these dry years a sign of things
    Lately rain has been hard to come by. Gary from Leander was wondering the last time we had an above average year for rainfall, what is causing less rain events and are these dry years a sign of things
  • Wednesday, December 12 2012 6:42 PM EST2012-12-12 23:42:19 GMT
    The rain has shut-off lately. No soaking rain in the last two months and the drought is making a comeback. The extreme drought is consuming much of the heartland. The Dust Bowl of the 1930s was caused
    The rain has shut-off lately. No soaking rain in the last two months and the drought is making a comeback. The extreme drought is consuming much of the heartland. The Dust Bowl of the 1930s was caused
  • Wednesday, December 5 2012 6:58 PM EST2012-12-05 23:58:23 GMT
    The 2012 Atlantic hurricane season featured 19 named storms, of which 10 became hurricanes and one became a major hurricane. The number is well above the average and also slightly above the May outlook.
    The 2012 Atlantic hurricane season featured 19 named storms, of which 10 became hurricanes and one became a major hurricane. The number is well above the average and also slightly above the May outlook.
  • Wednesday, November 21 2012 6:39 PM EST2012-11-21 23:39:42 GMT
    As we transition from summer to winter, the landscape is slowly changing around here. Andrew Ross of Austin was wondering what causes the leaves to change colors. November is the peak time for fall foliage
    As we transition from summer to winter, the landscape is slowly changing around here. Andrew Ross of Austin was wondering what causes the leaves to change colors. November is the peak time for fall foliage
  • Wednesday, November 14 2012 7:29 PM EST2012-11-15 00:29:19 GMT
    So far it's been a very dry autumn. Kay Adams of Austin was wondering if El Nino is still coming to our rescue to get us out of the drought completely this winter or will it just get worse going into next
    So far it's been a very dry autumn. Kay Adams of Austin was wondering if El Nino is still coming to our rescue to get us out of the drought completely this winter or will it just get worse going into next
  • Wednesday, November 7 2012 7:03 PM EST2012-11-08 00:03:24 GMT
    November is here and colder mornings are right around the corner. John Lopez of Austin was wondering when the area normally receives its first freeze of the season. Some areas of the western hill country
    November is here and colder mornings are right around the corner. John Lopez of Austin was wondering when the area normally receives its first freeze of the season. Some areas of the western hill country
  • Wednesday, October 31 2012 11:20 PM EDT2012-11-01 03:20:36 GMT
    The big weather story this week has been hurricane sandy merging with a cold front to make a superstorm. Many Central Texans want to know how this storm compares to the perfect storm of 1991. Both Superstorm
    The big weather story this week has been hurricane sandy merging with a cold front to make a superstorm. Many Central Texans want to know how this storm compares to the perfect storm of 1991. Both Superstorm
  • Wednesday, October 24 2012 6:36 PM EDT2012-10-24 22:36:40 GMT
    The ninth hurricane of the season has formed and here we are in mid-October. Kimberley Martin of Austin was wondering if this is normal and how often does hurricanes hit Texas this late in the year. The
    The ninth hurricane of the season has formed and here we are in mid-October. Kimberley Martin of Austin was wondering if this is normal and how often does hurricanes hit Texas this late in the year. The
  • Wednesday, October 3 2012 6:38 PM EDT2012-10-03 22:38:20 GMT
    Brian O'Connor wants to know now that Nadine is three weeks old and over 80 advisories issued, what's the record for longest storm duration in the Atlantic? And will Nadine shatter that record? The 14th
    Brian O'Connor wants to know now that Nadine is three weeks old and over 80 advisories issued, what's the record for longest storm duration in the Atlantic? And will Nadine shatter that record? The 14th
  • Wednesday, September 26 2012 6:43 PM EDT2012-09-26 22:43:38 GMT
    The latest tropical system over the eastern Pacific is making a U-turn toward Mexico and eventually could enhance rain chances for Texas. Rick Mathis of Austin was wondering if a hurricane from the Pacific
    The latest tropical system over the eastern Pacific is making a U-turn toward Mexico and eventually could enhance rain chances for Texas. Rick Mathis of Austin was wondering if a hurricane from the Pacific
  • Friday, September 21 2012 3:25 PM EDT2012-09-21 19:25:05 GMT
    Summer of 2012 is about to wrap up this weekend. The weather outlook for Fall depends on the comeback for El Nino. After the worst drought in decades, the rain this year has been a beautiful sight. We've
    Summer of 2012 is about to wrap up this weekend. The weather outlook for Fall depends on the comeback for El Nino. After the worst drought in decades, the rain this year has been a beautiful sight. We've
  • Wednesday, September 5 2012 6:40 PM EDT2012-09-05 22:40:16 GMT
    Heavy rain and strong winds are not the only reasons for concern when a tropical system like Isaac moves ashore.
    Heavy rain and strong winds are not the only reasons for concern when a tropical system like Isaac moves ashore.
  • Friday, August 24 2012 9:02 AM EDT2012-08-24 13:02:26 GMT
    Ann Collins of Austin wants to know how this summer compares to the last few. She says it seems like lately every summer is super hot and we keep breaking records.
    Ann Collins of Austin wants to know how this summer compares to the last few. She says it seems like lately every summer is super hot and we keep breaking records.
  • Wednesday, August 8 2012 6:34 PM EDT2012-08-08 22:34:29 GMT
    Six named storms have formed and the peak time for hurricanes is still a month away. In order for tropical systems to form, the ocean water has to be warm enough and high moisture levels need to be in
    Six named storms have formed and the peak time for hurricanes is still a month away. In order for tropical systems to form, the ocean water has to be warm enough and high moisture levels need to be in
  • Wednesday, August 1 2012 9:26 PM EDT2012-08-02 01:26:20 GMT
    Many have heard the term "the dog days of summer." Rebecca White of Austin is wondering what does the saying mean and where does it come from. The time between July 15 and August 15th is known as the
    Many have heard the term "the dog days of summer." Rebecca White of Austin is wondering what does the saying mean and where does it come from. The time between July 15 and August 15th is known as the
  • Wednesday, July 25 2012 6:37 PM EDT2012-07-25 22:37:54 GMT
    After a quick start to the hurricane season with four named storms, it has been a very quiet July in the tropics. John Wilson of Austin was wondering if this is normal and what does it mean for the rest
    After a quick start to the hurricane season with four named storms, it has been a very quiet July in the tropics. John Wilson of Austin was wondering if this is normal and what does it mean for the rest
  • Wednesday, July 18 2012 9:58 PM EDT2012-07-19 01:58:36 GMT
    A tutt low has broken up the hot and dry summer for the last week. Bill Hoglan was wondering what it is and how it differs from a tropical system.
    A tutt low has broken up the hot and dry summer for the last week. Bill Hoglan was wondering what it is and how it differs from a tropical system.
  • Wednesday, July 11 2012 6:39 PM EDT2012-07-11 22:39:57 GMT
    Susan Hopkins of Round Rock was wondering what a sea breeze is and how it makes rain. A sea breeze forms because of temperature differences between land and water. On a hot summer day, the land heats
    Susan Hopkins of Round Rock was wondering what a sea breeze is and how it makes rain. A sea breeze forms because of temperature differences between land and water. On a hot summer day, the land heats
  • Wednesday, June 27 2012 10:45 PM EDT2012-06-28 02:45:24 GMT
    Four people have died in the United States after being struck by lighting. Due to it being lighting safety awareness week, there are common facts and myth about the silent killer that many should be aware
    Four people have died in the United States after being struck by lighting. Due to it being lighting safety awareness week, there are common facts and myth about the silent killer that many should be aware
  • Thursday, June 21 2012 6:38 PM EDT2012-06-21 22:38:02 GMT
    Summer is here and David Kerry of Austin was wondering what the weather outlook is for the new season. Will the heat be as bad as last year or will have a normal summer?
    Summer is here and David Kerry of Austin was wondering what the weather outlook is for the new season. Will the heat be as bad as last year or will have a normal summer?
  • Wednesday, June 13 2012 6:48 PM EDT2012-06-13 22:48:03 GMT
    The last few weeks have been quiet in the tropics. Zack takes a look at the prime months for hurricanes and when do they most likely strike Texas.
    The last few weeks have been quiet in the tropics. Zack takes a look at the prime months for hurricanes and when do they most likely strike Texas.
  • Wednesday, June 6 2012 7:33 PM EDT2012-06-06 23:33:57 GMT
    The hurricane season is only a week old and we have already seen two named storms. Jane Baird of Austin was wondering if this has happened before and does this mean another active season is on the way.
    The hurricane season is only a week old and we have already seen two named storms. Jane Baird of Austin was wondering if this has happened before and does this mean another active season is on the way.
  • Friday, May 11 2012 9:39 PM EDT2012-05-12 01:39:39 GMT
    A tornado's strength cannot be determined by just looking at it. Examining the damage will give you a better idea of the strength of the tornado.
    A tornado's strength cannot be determined by just looking at it. Examining the damage will give you a better idea of the strength of the tornado.
  • Friday, May 11 2012 9:34 PM EDT2012-05-12 01:34:03 GMT
    Tornado season has arrived early this year. The peak time for tornadoes is usually from April to June. But this year we are getting a jump start to the tornado season. Earlier in January, for the first
    Tornado season has arrived early this year.
  • Friday, May 11 2012 9:31 PM EDT2012-05-12 01:31:42 GMT
    Most of the tornadoes occur right down the middle of the country. In tornado alley, the cool, dry air dropping from the Rockies slams into the warm and humid air coming from the Gulf of Mexico.
    Most of the tornadoes occur right down the middle of the country. In tornado alley, the cool, dry air dropping from the Rockies slams into the warm and humid air coming from the Gulf of Mexico.
  • Wednesday, May 9 2012 6:58 PM EDT2012-05-09 22:58:10 GMT
    Sherri Powers of Austin wants to know how lighting forms and when is it safe to go outside again.
    Sherri Powers of Austin wants to know how lighting forms and when is it safe to go outside again.
  • Monday, May 7 2012 5:18 PM EDT2012-05-07 21:18:26 GMT
    This time of year the dry line will be mentioned numerous times. Gabe McDaid of Austin was wondering how it makes storms and how do you know when it passes by. The dry line is a narrow boundary separating
    This time of year the dry line will be mentioned numerous times. Gabe McDaid of Austin was wondering how it makes storms and how do you know when it passes by.
  • Monday, May 7 2012 4:28 PM EDT2012-05-07 20:28:33 GMT
    Regan Shedd is wondering if Central Texas should expect another warm and dry summer. It all depends on what happens with La Nina. The overdue soaking rain has been a welcome sight across the state this
    For the 1st time since last April not one inch of Central Texas is under an exceptional drought.
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