October 28-30, 2009 Flooding and Severe Wx

Summary of Events

The events of October 28-30, 2009 began as a very strong upper level low pressure system began moving across the Texas/Oklahoma Panhandles on the 28th.  Moisture began to return to the region on by the night of the 28th as the low level winds increased ahead of this system, and scattered showers began to develop across the region in the wee hours of the 29th.  As the early morning hours of the 29th continued and the environment across the Four State Region became more moist and unstable, showers and thunderstorms became more numerous ahead of the cold front.  The National Weather Service in Shreveport issued the first Tornado Warning of the event at around 1 pm on the 29th.  The tornadic portion of this event lasted through the remainder of the day and continued into the late evening.  Flash flooding became a problem by the late afternoon of the 29th, as the thunderstorms continued to move over the same areas repeatedly.  As the cold front began moving through the region, the tornadic threat transitioned into a full-blown flash flooding event.  The cold front stalled over Deep East Texas, Northwest Louisiana, and Southwest Arkansas during the overnight hours heading into the 30th.  Widespread flash flooding was reported across areas of East Texas, Southwest Arkansas, and North Louisiana during this time.  The rainfall also aggravated and worstened hydrologic flooding that was already ongoing across North Lousiana and East Texas.  By mid day on the 30th, the front finally began moving eastward again, ending rainfall in the Four State Region by that evening.  

All said and done, the region received anywhere from one to eight inches of rainfall, with widespread totals of five to six inches across Deep East Texas, Southern Arkansas, and North/Northwest Louisiana.  Damage was reported in East Texas in Panola, Bowie, and Angelina Counties, in Southwest Arkansas in Little River, Lafayette, Columbia, and Union Counties, and in North Louisiana in Bossier, Caddo, Union, and Red River Parishes.  The most extensive damage occurred in the Shreveport/Bossier City area, with numerous homes and businesses sustaining moderate to significant damage.  Damage surveys were conducted in these areas to determine if tornadoes actually occurred, and if so, where they fell on the EF (Enhanced Fujita) scale.     

 

Tornado Tracks  

 To download the KMZ file for these tracks, click here.

 

Summary of Tornadoes

NOTE: All times are CDT. 

Tornado #1

Tornado #2

Tornado #3

Tornado #4

Tornado #5

Tornado #6

Tornado #7

Tornado #8

Tornado #9

Tornado #10

Tornado #11

Shreveport-Bossier City Tornado Track

Tornado #12

Tornado #13

Tornado #14

Tornado #15

Tornado #16

Tornado #17

Tornado #18

Tornado #19

Tornado #20

Tornado #21

Tornado #22

 

Event Rainfall

 

 Rainfall totals for some selected sites across the region (in  inches):

Southeast Oklahoma

East Texas

North Louisiana

Southwest Arkansas

 

October Rainfall

October 2009 was one of the wettest Octobers on record in terms of precipitation areawide.  The top five record Octobers for rainfall are listed below for some locations across the region:

SHREVEPORT LA (RECORDS SINCE 1872)
-------------------------
1.  OCTOBER 2009 - 20.35"
2.  OCTOBER 1949 - 14.02"
3.  OCTOBER 1984 - 12.05"
4.  OCTOBER 1985 -  9.84"
5.  OCTOBER 1994 -  9.14"
NOTE: OCTOBER 2009 RANKS THIRD AMONG ALL TIME WETTEST MONTHS.


MONROE LA (RECORDS SINCE 1930)
-------------------------
1.  OCTOBER 2009 - 20.54"
2.  OCTOBER 1906 - 12.14"
3.  OCTOBER 1991 - 10.84"
4.  OCTOBER 1937 -  9.36"
5.  OCTOBER 1982 -  9.16"


TEXARKANA AR (RECORDS SINCE 1892)
-------------------------
1.  OCTOBER 1919 - 18.28"
2.  OCTOBER 2009 - 16.51"
3.  OCTOBER 1984 - 12.81"
4.  OCTOBER 1926 - 12.08"
5.  OCTOBER 1981 - 10.12"


LUFKIN TX (RECORDS SINCE 1948)
-------------------------
1.  OCTOBER 1994 - 15.54"
2.  OCTOBER 2009 - 15.04"
3.  OCTOBER 2006 - 13.24"
4.  OCTOBER 1949 - 11.53"
5.  OCTOBER 1985 -  9.87"


TYLER TX (RECORDS SINCE 1896)
-------------------------
1.  OCTOBER 1985 - 14.82"
2.  OCTOBER 2009 - 13.69"
3.  OCTOBER 1945 - 10.61"
4.  OCTOBER 1949 - 10.19"
5.  OCTOBER 1994 - 10.10"
NOTE: THESE MONTHLY RAINFALL TOTALS ARE TAKEN AT THE COOPERATIVE
      OBSERVING STATION IN TYLER DUE TO RECORD KEEPING PURPOSES.


LONGVIEW TX (RECORDS SINCE 1902)
-------------------------
1.  OCTOBER 2009 - 15.16"
2.  OCTOBER 1994 - 14.08"
3.  OCTOBER 1919 - 12.97"
4.  OCTOBER 1957 - 12.68"
5.  OCTOBER 1984 - 11.48"
NOTE: THESE MONTHLY RAINFALL TOTALS ARE TAKEN AT THE COOPERATIVE
      OBSERVING STATION IN TYLER DUE TO RECORD KEEPING PURPOSES.


EL DORADO AR (RECORDS SINCE 1904)
-------------------------
1.  OCTOBER 2009 - 19.75"
2.  OCTOBER 1919 - 16.02"
3.  OCTOBER 1984 - 12.98"
4.  OCTOBER 2004 - 10.56"
5.  OCTOBER 1985 - 10.52"


DEQUEEN AR (RECORDS SINCE 1936)
-------------------------
1.  OCTOBER 1984 - 15.67"
2.  OCTOBER 2009 - 14.12"
3.  OCTOBER 1993 - 13.26"
4.  OCTOBER 1984 -  9.89"
5.  OCTOBER 1949 -  9.84"
NOTE: THESE MONTHLY RAINFALL TOTALS ARE TAKEN AT THE COOPERATIVE
      OBSERVING STATION IN TYLER DUE TO RECORD KEEPING PURPOSES.

 

Hydrologic Impacts

The hydrologic impacts from this event will linger for several weeks.  These rains (along with previous rains in the month of October) brought flood conditions to the lakes and rivers of the region, particularly in North Louisiana.  For stages and forecasts on most area lakes and rivers, click here.

Some selected river/lake stages and forecasts are below:

Wallace Lake in Southern Caddo Parish, LA - WEDNESDAY AFTERNOON STAGE:  151.8 feet; FORECAST:  The lake will fall eight to ten inches per day and fall below flood stage by Thursday evening. 

Red Chute Bayou at Dogwood Trail near Bossier City, LA - WEDNESDAY AFTERNOON STAGE:  23.2 feet; FORECAST:  The bayou will continue to fall around six to eight inches per day through the remainder of the work week.  

Red Chute Bayou at Sligo, LA - WEDNESDAY AFTERNOON STAGE:  35.0 feet; FORECAST:  The bayou will continue to fall around a foot per day through the end of the work week.

Red Chute Bayou at High Island, LA - WEDNESDAY AFTERNOON STAGE:  28.2 feet; FORECAST:  The bayou will continue receding around a foot per day through the end of the work week. 


  • National Weather Service
  • Shreveport, LA Weather Forecast Office
  • 5655 Hollywood Ave.
  • Shreveport, LA 71109
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  • Page Author: SHV Webmaster
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  • Page last modified: November 11th 2009 6:33 PM
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