National Weather Service United States Department of Commerce

Isolated to scattered showers and thunderstorms will be possible tonight with the best chances generally south of I-20 and east of I- 35. Locally heavy rainfall, gusty wind and lightning will be the main hazards. Overnight lows will be in the lower and middle 70s.
Chances for showers and thunderstorms continue Wednesday and Thursday with the highest chances east of I-35 each day. While severe storms aren't expected during this time period, gusty winds may accompany stronger storms on Thursday.
Hot weather will return this weekend with forecast high temperatures in the mid 90s (east) to lower 100s (west). Humid conditions will result in afternoon heat index values rising into the lower 100s, with a few locations likely seeing heat index values in the mid 100s. This extreme heat can cause heat exhaustion and heat stroke. Outdoor activities should be avoided during the hottest part of the day. If participating in any outdoor activities, caution should be exercised by wearing lightweight and loose-fitting clothing if possible, and drinking plenty of water. Take frequent breaks in shaded or air conditioned environments.

 
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September 2010 Review

Tropical Storm Hermine brought a deluge to the I-35 corridor, with widespread storm totals in excess of 5 inches.  Over 10 inches fell in south Arlington, resulting in high water rescues.  A life was lost in Johnson County as a result of the flooding.  Another flood death occurred in Bell County where many areas saw more than 10 inches of rain.

Bell County Storm Totals
Location Precipitation
Youngsport 11.27
Fort Hood 11.26
Killeen 11.13
Stillhouse Hollow 10.66

 

Hermine Rainfall

         

 

Both DFW and Waco recorded 24-hour precipitation totals that are among the highest on record. 

Dallas/Fort Worth
Greatest 24-Hour Precipitation Totals
Rank Precipitation Date
1 9.57 Sep 4-5, 1932
2 8.81 Apr 24-25, 1922
3 7.44 Sep 20-21, 1900
4 6.99 May 23-24, 1908
5 6.03 May 16-17, 1949
6 5.91 Sep 30-Oct 1, 1959
7 5.85 Sep 3-4, 1943
8 5.75 Sep 7-8, 2010
9 5.40 Aug 17-18, 1915
10 5.34 May 16-17, 1989

Waco
Greatest 24-Hour Precipitation Totals
Rank Precipitation Date
1 7.98 Dec 20, 1997
2 7.18 May 11-12, 1953
3 6.40 Jun 16-17, 1938
4 6.03 Sep 26-27, 1936
5 5.98 Sep 11-12, 1913
6 5.89 Sep 7-8, 2010
7 5.72 Oct 30-31, 1974
8 5.67 Oct 1-2, 1927
9 5.56 Jun 13-14, 1927
10 5.40 Dec 3-4, 1913

 

 

 

In addition to the torrential rains, Hermine spawned several tornadoes across North Texas.  The strongest was rated EF-2, impacting west Dallas near the intersection of Mockingbird Lane and Irving Blvd. The tornado caused minor roof damage to several buildings and caused extensive damage to a warehouse. 

Hermine Tornadoes

         

For the second consecutive year, September ranks among the wettest on record. 

 

 

Dallas/Fort Worth
Greatest Precipitation Totals for September
Rank Precipitation Year
1 10.80 1932
2 9.52 1964
3 9.12 1900
4 9.09 2010
5 7.31 1943
6 7.30 1936
7 7.29 1913
8 7.16 1973
9 6.54 1980
10 6.52 2009

Waco
Greatest Precipitation Totals for September
Rank Precipitation Year
1 11.17 1913
2 10.39 1936
3 9.49 2010
4 9.37 1942
5 9.11 1935
6 8.14 2009
7 7.29 1970
8 6.80 1974
9 6.57 1990
10 6.43 1932