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November 2001 Weather Brings Floods, Severe Weather and
A Winter Precipitation Event

More cloud cover and much more rain came to parts of Central and South Central Texas in November 2001, compared to October. November 2001 began warm and ended cold. Like October stormy weather showed up for the 2nd month in a row in the Fall of 2001. So far the Fall of 2001 is kind of similar to the Fall of 2000 with  flood and severe weather events.  Last year in November severe weather events came November 2nd, 5th, 12th, and 23rd, 2000.

November 2001 weather began unseasonably warm and sunny for the first five days. On the night of the 8th and early morning of the 9th, a cool front passed through the area. Rain, showers and thunderstorms accompanied the front and left 0.24 inches at Austin Mabry, 0.36 inches at Austin Bergstrom, a Trace at Del Rio, and 0.87 inches at San Antonio. Skies cleared up in the day of Friday, November 9th after the cool front, with mostly sunny conditions and afternoon highs were 10 to 16 degrees cooler than the day before. Clouds increased across the area again on Sunday the 11th, and continued to increase Monday the 12th and Tuesday the 13th.

A significant flood and severe weather event came Wednesday November 14th to Friday November 16th.  A slow moving low pressure system aloft began to affect parts of Central and South Central Texas Wednesday the 14th, as the first wave of rain came across the area, with showers and thunderstorms. This weather system stalled just west and northwest of the area Thursday the 15th and Friday the 16th. This allowed additional waves of rain and thunderstorms to sweep across Central and South Central Texas. In this event floods, severe thunderstorms and tornadoes were observed.

On Wednesday the 14th, the first wave of flooding along with thunderstorms pounded the region. Over the western Texas Hill Country flash flooding was observed. Camp Wood in Edwards County had 8.37 inches of rain, followed by Tarpley in Bandera County with 5.80 inches of rain. In Val Verde County, 22 miles northeast of Comstock 4.49 inches of rain fell and Cauthorn Ranch had 2.21 inches, while Del Rio International Airport had 0.22 inches for November 14th. Medina Lake had 2.10 inches; Laguna, 19 miles northwest of Uvalde, 1.65 inches; and Hondo Municipal Airport 1.50 inches. After these floods and thunderstorms affected western parts of South Central Texas in the early morning, the wave of rain and thunderstorms then moved across the Texas Hill Country in the day; San Antonio around noon to early afternoon and the Austin Area in the afternoon. Rainfall amounts were the greatest over the Hill Country, where 1.70 inches fell near Fredericksburg and 2.53 inches fell near Johnson City.

Flash Floods and Severe Weather followed the night of the 14th to the day and evening of the 15th. Very heavy rain and severe weather came Thursday, November 15th. In the early morning hours, thunderstorms and heavy rain pounded parts of the hill country east to South Central Texas. Heavy rain flooded the Austin Area, as well as parts of the Hill Country and southward to South Central Texas. In the mid to late afternoon, Tornado reports came in from near New Braunfels to Buda to the Austin Area. At Austin Bergstrom Airport winds gusted to 62 mph. Heavy rain reports around Austin were as follows: Austin Barton Creek and Loop 306 8.38 inches; Austin-Onion Creek 7.73 inches; Austin Great Hills 6.13 inches; and Austin Bull Creek and Loop 360 6.49 inches. Austin Bergstrom International Airport had 8.68 inches and Austin Mabry had 7.55 inches. Other heavy rain reports from west to east of Austin include the following: Marble Falls 5.80 inches; Johnson City 5.51 inches; Horseshoe Bay 6.66 inches; Sandy 6.01 inches; Bertram 5.49 inches; Burnet 4.98 inches; Spicewood 4.53 inches; Elgin 6.10 inches; 3 Miles North of Leander 5.73 inches; 24 miles Southwest of Llano 5.32 inches; and 3 miles North of Bertram 6.19 inches. Very heavy rain also swept across the San Antonio Area between 4 and 7 pm on November 15th, producing numerous street flooding and flooding in low lying areas.  For November 15th, San Antonio International Airport had 2.18 inches and Randolph AFB 2.58 inches. To the north of San Antonio, Helotes had 2.58 inches and Spring Branch had 5.31 inches of rain. Other rain reports include the following: 5 Miles East of Canyon Dam 8.57 inches; 5 Miles North of New Braunfels 7.32 inches; New Braunfels Central Fire Station 5.03 inches; 3 Miles East Northeast of New Braunfels 6.20 inches; New Braunfels Fire Station 3 - 5.74 inches; Bulverde 3.10 inches; and 1 mile East of Bulverde 3.46 inches. To the west and southwest of San Antonio, the following rainfall reports from the 15th were as follows: 2 miles Northwest of Concan 1.60 inches; Campbelton 1.45 inches; 22 miles Northeast of Comstock 0.13 inches; Langtry 0.10 inches; and Del Rio 0.27 inches.

On Friday, November 16th, mostly cloudy skies, with scattered showers and thunderstorms continued. Cloudy skies and scattered light rain amounts were observed Saturday the 17th, and on Sunday November 18th, skies began to clear out by the afternoon, after some patchy early morning drizzle and light rain.

The picture below shows storm total rainfall from November 15 to 18th, 2001.

 

Nov. 15 to 18, 2001 Rainfall

The pictures below show Satellite Photos from November 15 and 16, 2001. The top left GOES 8 water vapor photo was at 1215 pm Nov. 15th; the top right GOES 8 water vapor photo was at 545 pm Nov. 15th. At the bottom left is a GOES 8 infrared photo at 815 pm Nov. 15th, and at the bottom right is a GOES 8 water vapor photo from 1215 pm Nov. 16.

 
1215 pm Nov. 15, 2001 Satellite Photo
545 pm Nov. 15, 2001 Satellite Photo
815 pm Nov. 15, 2001 Satellite Photo
1215 pm Nov. 16, 2001 Satellite Photo

On Monday, November 19th, a cold front swept across the area, along with rain, showers and thunderstorms. The heaviest rains were from parts of Kinney, Uvalde, and Frio Counties, extending northward to parts of Bandera County. The heaviest rain amounts came in at 1.11 inches at 10 miles North of Vanderpool, 1.06 inches at Tarpley, and 0.89 inches at 26 miles north of Brackettville. The cloud cover lingered through the evening hours, along with patches of rain and showers. The rain and showers moved east in the night, and cloud cover began to slowly decrease from the north and northeast.

During the day of November 20th, decreasing clouds halted over the west and southwest parts of the South Central Texas, as another weather system evolved over North Central Mexico to the west. Mostly cloudy skies over the west parts of South Central Texas made for a cool November Day, where Del Rio had a high of only 53. Further east, where sunshine was present, afternoon highs rose to 60 at San Antonio and Austin Bergstrom and to 61 at Austin Mabry. Clouds, between 5000 and 10,000 feet, steadily increased north and northeastward across the region from the southwest from around sunset and early evening of the 20th to the morning of the 21st. A cloudy day followed on Wednesday the 21st. After morning clouds on Thanksgiving the 22nd, mostly sunny to mostly clear skies followed from the mid to late morning through the afternoon. Afternoon highs rose to the 70s. On Friday the 23rd, after early morning low clouds and fog, a mostly sunny and mild late November Day followed with afternoon highs in the upper 70s to the low and mid 80s. A sunny, mild and dry day came Saturday the 24th, with afternoon highs in the 70s.

On Sunday the 25th, after cold early morning lows in the 30s over the Hill Country to lower 40s across South Central Texas, afternoon highs warmed to the 70s under clear skies. On Sunday evening, low clouds returned rapidly from the south, and patchy fog followed early Monday morning. By late Monday morning through the afternoon, mostly sunny and unseasonably warm conditions followed with afternoon highs in the upper 70s to lower 80s.

Much colder conditions followed Tuesday the 27th, in wake of a cold front that swept through the region in the early morning hours of Tuesday the 27th. Temperatures fell during the day into the 40s across the Hill Country to the 50s over South Central Texas in the early afternoon, then to the 30s over the Hill Country to 40s over South Central Texas by late afternoon. Temperatures in the night fell into the 30s across South Central Texas, with strong north winds. In the early morning hours of Wednesday November 28th, after Midnight, an area of showers and thunderstorms formed from south of San Antonio to San Antonio to New Braunfels to Austin to Pflgerville. Some of thunderstorms between 130 am and 400 am were severe and produced hail. The following hail reports were observed: At 150 AM 0.88 Inch hail fell near Pleasanton; At 155 AM 0.50 Inch hail fell in San Antonio; At 155 AM 0.50 to 1.75 Inch Hail in Universal City; At 15 Miles Southeast of San Antonio 1 Inch Hail; At 240 AM 0.50 Inch Hail 5 Miles northeast of New Braunfels; At 330 AM 0.75 Inch Hail at Pflgerville; and At 350 AM 0.50 Inch Hail 2 Miles Southeast of New Braunfels. Snow, sleet and freezing rain in the predawn hours then began to affect the western and northern hill country to parts of Edwards and Val Verde County.

Snow fell across parts of Val Verde County in the early morning of the 28th and continued to spread across the rest of Val Verde County through the early afternoon. Sleet and freezing rain were reported in Val Verde County around 630 AM November 28th. Some of the bridges and overpasses were beginning to ice over. The mix of winter precipitation was causing icy roads not only in Val Verde County, also further east over parts of the hill country. A half inch of snow was reported near Hunt in Kerr County in the morning. Slippery roads and highways from the Mix of Winter Precipitation was reported in the Kerrville Area; Comfort; Boerne and Fredricksburg. Between 2 and 3 pm on the 28th, 5 inches of snow was reported 11 miles northeast of Pandale; 4 inches 1 mile north of Pandale; 2 inches at 13 miles west of Langtry; 2 inches at 16 miles east southeast of Langtry; 2 inches at 9 miles southwest of Juno; and also 2 inches at 6 miles north northeast of Loma Alta. By late afternoon several inches of snow had accumulated in and around Comstock, about 30 miles northwest of Del Rio. Around 7 miles west of Comstock near 6 inches of snow was observed, with reports of drifts up to near 10 inches. Snow began falling in the Del Rio area around 1 PM on November 28th, and snowfall amounts of up to 1 to 2 Inches were observed in the Del Rio Area. The temperature at the Del Rio International Airport fell to 32 degrees in the afternoon, and a report of the temperature at 29 degrees was observed north of Del Rio.

In the late afternoon of Wednesday the 28th, a new band of precipitation was poised to move across the area from near Del Rio south to near Eagle Pass and El Indio. In the evening of the 28th, this band of Rain, mixed with Freezing Rain and Sleet, with some snow flurries, began to move across South Central Texas from the Southwest. Rain changed to freezing rain around Hondo to San Antonio to Austin in the night, mixed with sleet and some snow flurries. The band of winter precipitation affected the Hondo and San Antonio Areas in the evening to just after Midnight and the Austin Area in the predawn hours to around daybreak on November 29. Clouds began to decrease from the west around 3 AM Thursday the 29th, as the early morning moonlight begin show up through the clouds. The rain and winter precipitation moved east of South Central Texas after sunrise. Mostly clear skies prevailed over the west parts of South Central Texas around sunrise, and decreasing clouds continued across the rest of the area. Mostly sunny conditions prevailed over all of South Central Texas by late morning and early afternoon. By Mid to Late Afternoon scattered high clouds moved across the area, and turned to an orange to reddish color in the sky around sunset. On the last day of the month, clear skies prevailed with afternoon highs rising to the 60s.

November 2001 was the wettest November of record for the Austin City Climate Station, now Austin Mabry, mainly from the affects of the November 15th flood. For November the total precipitation at Austin Mabry was 10.00 inches, exceeding the previous record of 7.99 inches in 1907. For Austin Bergstrom, 10.51 inches of precipitation fell in November, making November 2001 the 2nd wettest November of record. The wettest November was in 1974, when flooding rains also came to the Austin Area, and left 12.49 inches of rain at Austin Bergstrom.  November 2001 precipitation for San Antonio was 4.36 inches, making November 2001 the 19th wettest November of Record for San Antonio.  The wettest November for San Antonio was in 1874 when 9.16 inches of rain fell, and the 2nd wettest was in November 2000 when 8.58 inches of rain fell.   Del Rio in November 2001 had 1.12 inches of precipitation. This made November 2001 the 30th wettest November for Del Rio.  The wettest November for Del Rio was November 1913 when 4.54 inches of rain fell.                                       

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