Brian Alonzo
@wxprobrian.bsky.social
Chief Meteorologist for CPS Energy in San Antonio, Texas. Former TV broadcast meteorologist in San Antonio, Tyler, and Victoria, Texas.
4:36PM: Showers and storms are approaching from the west. Expect moderate to heavy rain, lightning, some gusty winds, and small hail possible.
November 20, 2025 at 10:38 PM
4:36PM: Showers and storms are approaching from the west. Expect moderate to heavy rain, lightning, some gusty winds, and small hail possible.
FLOOD WATCH UPDATE: NWS has removed Bexar county from the Flood Watch. They expect the heavier rains to stay mainly west of San Antonio and in the Hill Country. We still have a chance for showers and storms in our forecast so stay weather aware through Friday morning.
November 20, 2025 at 6:19 PM
FLOOD WATCH UPDATE: NWS has removed Bexar county from the Flood Watch. They expect the heavier rains to stay mainly west of San Antonio and in the Hill Country. We still have a chance for showers and storms in our forecast so stay weather aware through Friday morning.
FUTURE RADAR: Here is what our in house weather model is showing as we move through the next 4 days. Note that at times, some rain could range from isolated to numerous across South Texas. As mentioned in my previous post, the higher rain totals will be west of San Antonio.
November 19, 2025 at 9:17 PM
FUTURE RADAR: Here is what our in house weather model is showing as we move through the next 4 days. Note that at times, some rain could range from isolated to numerous across South Texas. As mentioned in my previous post, the higher rain totals will be west of San Antonio.
FLASH FLOOD THREAT UPGRADED: A short time ago in coordination with our NWS office, the Weather Prediction Center upgraded areas west of San Antonio into a Moderate Risk for flash flooding. Models show some areas could receive 5"+ through Thursday. Stay weather aware!
November 19, 2025 at 7:55 PM
FLASH FLOOD THREAT UPGRADED: A short time ago in coordination with our NWS office, the Weather Prediction Center upgraded areas west of San Antonio into a Moderate Risk for flash flooding. Models show some areas could receive 5"+ through Thursday. Stay weather aware!
FLOOD WATCH: Has been issued for Bexar county going into effect Thursday morning through Friday morning. Average rainfall totals from 1-3" with isolated higher amounts.
November 18, 2025 at 6:29 PM
FLOOD WATCH: Has been issued for Bexar county going into effect Thursday morning through Friday morning. Average rainfall totals from 1-3" with isolated higher amounts.
LATER THIS WEEK: Rain and storms are still in the forecast for Thursday. Per my previous post I still see the possibility of some strong to severe storms. One model shows we could see waves of rain and storms on Thursday. We have been flagged for the potential for flash flooding on Thursday.
November 17, 2025 at 9:27 PM
LATER THIS WEEK: Rain and storms are still in the forecast for Thursday. Per my previous post I still see the possibility of some strong to severe storms. One model shows we could see waves of rain and storms on Thursday. We have been flagged for the potential for flash flooding on Thursday.
A LOOK AHEAD: An upper level low is expected to go over Texas late next week. Models are indicating all modes of severe weather will be possible from large hail, damaging winds, and tornadoes. Heavy rain also possible. Timing could change on when storms arrive so be weather aware late next week.
November 14, 2025 at 8:28 PM
A LOOK AHEAD: An upper level low is expected to go over Texas late next week. Models are indicating all modes of severe weather will be possible from large hail, damaging winds, and tornadoes. Heavy rain also possible. Timing could change on when storms arrive so be weather aware late next week.
NEXT 7 DAYS: We have warm temperatures in the forecast. Record high possible on Sunday. Rain chances going up late next week. There also could be strong to severe storms as well. I'll be keeping an eye on that.
November 14, 2025 at 2:59 PM
NEXT 7 DAYS: We have warm temperatures in the forecast. Record high possible on Sunday. Rain chances going up late next week. There also could be strong to severe storms as well. I'll be keeping an eye on that.
RED FLAG WARNING: On Veterans Day, strong southerly winds will contribute to high fire threat. A Red Flag Warning has been issued for most of South Texas starting tomorrow morning at 9am.
November 10, 2025 at 7:24 PM
RED FLAG WARNING: On Veterans Day, strong southerly winds will contribute to high fire threat. A Red Flag Warning has been issued for most of South Texas starting tomorrow morning at 9am.
FREEZE WARNING: Issued for the Hill Country overnight tonight. Low temps in Bexar county are expected to stay above freezing. However, tomorrow morning around sunrise, wind chills will make it feel like near/below freezing in parts of the county. High temps will rebound into the mid 60s for highs.
November 10, 2025 at 1:01 AM
FREEZE WARNING: Issued for the Hill Country overnight tonight. Low temps in Bexar county are expected to stay above freezing. However, tomorrow morning around sunrise, wind chills will make it feel like near/below freezing in parts of the county. High temps will rebound into the mid 60s for highs.
TIED THE HIGH: AS 2:25pm, the current temp of 88° at San Antonio Int'l ties the record for the date. We still could go higher. Also, a Fire Weather Watch was issued for South Texas ahead of a strong cold front that is expected on Sunday. This will more than likely be upgraded to a Red Flag Warning.
November 7, 2025 at 8:35 PM
TIED THE HIGH: AS 2:25pm, the current temp of 88° at San Antonio Int'l ties the record for the date. We still could go higher. Also, a Fire Weather Watch was issued for South Texas ahead of a strong cold front that is expected on Sunday. This will more than likely be upgraded to a Red Flag Warning.
THIS WEEK: We have a few chilly mornings but afternoons will be getting warmer each day. In fact, we will be near record highs on Friday. We still do need rain. Unfortunately, there is none in the 7 day forecast.
November 3, 2025 at 6:33 PM
THIS WEEK: We have a few chilly mornings but afternoons will be getting warmer each day. In fact, we will be near record highs on Friday. We still do need rain. Unfortunately, there is none in the 7 day forecast.
7:27PM: Most of the severe storms are in South Texas. There are still showers in Central Texas moving south. We still have a chance for those to make it to San Antonio but I don't anticipate severe storms.
November 2, 2025 at 12:30 AM
7:27PM: Most of the severe storms are in South Texas. There are still showers in Central Texas moving south. We still have a chance for those to make it to San Antonio but I don't anticipate severe storms.
5:52PM: This 2 hour loop shows how storms rapidly developed in the San Antonio metro area. Storms near Seguin are severe with quarter size hail being the main threat. Storm in eastern Bexar is also strong with hail indicated. Storm over Boerne moving SE also strong.
November 1, 2025 at 10:57 PM
5:52PM: This 2 hour loop shows how storms rapidly developed in the San Antonio metro area. Storms near Seguin are severe with quarter size hail being the main threat. Storm in eastern Bexar is also strong with hail indicated. Storm over Boerne moving SE also strong.
TIME CHANGE: Friendly reminder to change those clocks back one hour Sunday morning at 2am. This is also a good reminder to change the batteries in your smoke and carbon monoxide detectors along with weather radios.
October 31, 2025 at 7:16 PM
TIME CHANGE: Friendly reminder to change those clocks back one hour Sunday morning at 2am. This is also a good reminder to change the batteries in your smoke and carbon monoxide detectors along with weather radios.
CHANCE FOR SHOWERS: On Saturday late afternoon and evening there is a 20-30% chance for a showers and isolated storms. I'm not expecting severe weather for the San Antonio area. Just be aware if you have any outdoor plans mainly Saturday night.
October 31, 2025 at 4:02 PM
CHANCE FOR SHOWERS: On Saturday late afternoon and evening there is a 20-30% chance for a showers and isolated storms. I'm not expecting severe weather for the San Antonio area. Just be aware if you have any outdoor plans mainly Saturday night.
DROUGHT IMPROVED: San Antonio and parts of South Central Texas saw an improvement in this morning's update thanks to this past weekend's rain and storms. However, the drought expanded south of San Antonio. They didn't see much rain.
October 30, 2025 at 1:40 PM
DROUGHT IMPROVED: San Antonio and parts of South Central Texas saw an improvement in this morning's update thanks to this past weekend's rain and storms. However, the drought expanded south of San Antonio. They didn't see much rain.
RECORD HIGH: This afternoon as the front moved into the San Antonio area, the temperature went up to 91 degrees. This broke the record high of 90 degrees set back in 1931.
October 29, 2025 at 2:49 AM
RECORD HIGH: This afternoon as the front moved into the San Antonio area, the temperature went up to 91 degrees. This broke the record high of 90 degrees set back in 1931.
4PM WIND GUSTS: Wind gusts behind the front are ranging from near 20 mph up to 36 mph being reported at San Antonio Int'l Airport.
October 28, 2025 at 9:09 PM
4PM WIND GUSTS: Wind gusts behind the front are ranging from near 20 mph up to 36 mph being reported at San Antonio Int'l Airport.
COLD FRONT ARRIVING: Because the front is picking up dust and other debris, the radar can see it. The front is now entering northern Bexar county. Gusty winds 15-25 mph already observed behind the front. They will get stronger the rest of the afternoon.
October 28, 2025 at 5:52 PM
COLD FRONT ARRIVING: Because the front is picking up dust and other debris, the radar can see it. The front is now entering northern Bexar county. Gusty winds 15-25 mph already observed behind the front. They will get stronger the rest of the afternoon.
RED FLAG WARNING: has been issued for most of South Texas including the San Antonio area for Wednesday, October 29th. High winds and low relative humidity values can cause wildfires (if they start) to spread rapidly. Any type of outdoor burning is not recommended & dispose of cigarettes properly.
October 28, 2025 at 5:22 PM
RED FLAG WARNING: has been issued for most of South Texas including the San Antonio area for Wednesday, October 29th. High winds and low relative humidity values can cause wildfires (if they start) to spread rapidly. Any type of outdoor burning is not recommended & dispose of cigarettes properly.
WIND ADVISORY: Was just issued for South Central Texas. This goes into effect at 2pm today through 7pm on Wednesday. Sustained winds up to 30 mph and gusts 45 mph possible. This is the best time to secure outdoor furniture or Halloween decorations.
October 28, 2025 at 4:11 PM
WIND ADVISORY: Was just issued for South Central Texas. This goes into effect at 2pm today through 7pm on Wednesday. Sustained winds up to 30 mph and gusts 45 mph possible. This is the best time to secure outdoor furniture or Halloween decorations.
COLD FRONT: Is just hours away. It's now entering the Edwards Plateau. Expecting the front to arrive in San Antonio around 1pm (give or take an hour). Winds will increase. Gusts up to 35 mph this afternoon and gusts this evening/overnight up to 45 mph. Cooler temps also on the way too.
October 28, 2025 at 3:54 PM
COLD FRONT: Is just hours away. It's now entering the Edwards Plateau. Expecting the front to arrive in San Antonio around 1pm (give or take an hour). Winds will increase. Gusts up to 35 mph this afternoon and gusts this evening/overnight up to 45 mph. Cooler temps also on the way too.
MELISSA: As of 7pm, Hurricane Melissa is Category 5 storm with sustained winds of 175 mph. This is bringing heavy rain and high winds to Jamaica.
October 28, 2025 at 12:05 AM
MELISSA: As of 7pm, Hurricane Melissa is Category 5 storm with sustained winds of 175 mph. This is bringing heavy rain and high winds to Jamaica.
BIG CHANGES ON THE WAY: A cold front arrives tomorrow around midday. This front will bring increasing winds, lower humidity, along with a high fire threat on Wednesday. 1/2
October 27, 2025 at 6:09 PM
BIG CHANGES ON THE WAY: A cold front arrives tomorrow around midday. This front will bring increasing winds, lower humidity, along with a high fire threat on Wednesday. 1/2