National Weather Service United States Department of Commerce

Excessive Heat Continues in the Southwest on Monday

A cold front will bring relief to the Pacific Northwest on Monday, but the Southwest will see above average temperatures again. Excessive Heat Warnings are in effect for many locations through Monday evening. The hottest temperatures will be in the desert as daytime high temperatures may exceed 115 degrees. Read More >

There will be a risk for rain and storms today as an upper level trough slides southward through North and Central TX. The best rain chances will be across western portions of North TX and across Central TX. Widespread severe weather is unlikely, but a few storms may contain gusty winds and heavy rain. Afternoon max temperatures will climb into the 80s.
Low storm chances will linger tonight across portions of western North TX and across Central TX. Overnight low temperatures should be comfortable with readings in the 60s and 70s.
After the nice break from the heat over the weekend, temperatures will warm up again into the 90s this week. There will be low chances of showers and thunderstorms across parts of North and Central Texas this week. Highs will be in the lower 90s and lows will be in the low-to-upper 70s.
Here's an early look at the forecast for the 4th of July Weekend (Saturday through Tuesday). There is a chance for isolated to scattered rain Friday night and Saturday, but then an upper level ridge will move across the region, potentially keeping Sunday through Tuesday dry. Temperatures will be warm/hot in the mid 90s to around 100 degrees.

 
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March 2011 Review

 

The warm weather during the latter half of February continued largely unabated during March.  At DFW Airport, there were 19 days during the month with highs in the 70s or 80s.  Waco reached a record high of 94°F on March 26, Waco's first 90-degree day of the year.  Despite an unseasonably cool conclusion to the month, there were only a handful of below normal days in March.  Both DFW and Waco ended the month 4 degrees above normal. 

 

 DFW Temps - March 2011          Waco Temps - March 2011

 

Some areas east of I-35 picked up a half-inch or more of rainfall during March, but many areas saw little or no measurable precipitation the entire month.  The image below shows estimated precipitation for the month of March.

 

March 2011 Precipitation

March 2011 Precipitation

 

For both DFW and Waco, March 2011 ranks among the driest on record.  It was the driest March since 1925 in Dallas/Fort Worth and the driest since 1972 at Waco.

Dallas/Fort Worth
Lowest Precipitation Totals
for March
Rank Precipitation Year
1 0.02 1925
2 0.07 2011
3 0.10 1972
4 0.11 1956
5 0.32 1899
6 0.34 1971
7 0.40 1940
8 0.41 1909
9 0.48 1963
10
(tie)
0.63 1936
0.63 1932
Waco
Lowest Precipitation Totals
for March
Rank Precipitation Year
1 T 1925
2 0.04 1956
3 0.09 1972
4 0.15 2011
5 0.16 1950
6 0.22 1959
7 0.28 1916
8 0.37 1940
9 0.43 1986
10 0.61 1974

 

March 2011 Precipitation
Location Precipitation Normal Departure
DFW Airport 0.07 3.06 -2.99
Waco 0.15 2.48 -2.33
Dallas Love Field 0.28 3.13 -2.85
Fort Worth Meacham 0.09    
Dallas Executive 0.04    
Fort Worth Alliance 0.10    
Arlington 0.01 3.18 -3.17
Denton 0.12 2.82 -2.70
McKinney 0.26 3.37 -3.11
Terrell 0.76 3.30 -2.54
Corsicana 0.08 3.34 -3.26
Mineral Wells 0.05 2.69 -2.64

 

6-Month Precipitation (October 1, 2010 - March 31, 2011)
Location Precipitation Normal Departure % of Normal
DFW Airport 7.30 16.58 -9.28 44
Waco 8.48 15.85 -7.37 54
Dallas Love Field 8.39 17.12 -8.73 49
Fort Worth Meacham 6.15      
Dallas Executive 7.50      
Fort Worth Alliance 6.59      
Arlington 8.42 17.75 -9.33 47
Denton 6.92 17.65 -10.73 39
McKinney 9.67 19.90 -10.23 49
Terrell 12.58 21.32 -8,74 59
Corsicana 11.29 20.17 -8.88 56
Mineral Wells 3.52 13.81 -10.29 25

 

 

 

Precipitation deficits have been mounting since Tropical Storm Hermine in September.  Much of North Texas has received less than half of normal precipitation during the last six months.  Mineral Wells' 3.52" is only 25% of normal.

 

The image below shows estimated precipitation deficits since October 1, 2010.  Much of North and Central Texas are more than 8 inches below normal with 6-month deficits over 12 inches in portions of East Texas.

6-Month Precipitation Deficits (October 2010 - March 2011)

6-Month Precipitation Deficits (October 2010 - March 2011)

 

 

Drought continues to intensify across the region.  For the first time in 2 years, the entire state of Texas is classified as at least abnormally dry.  Almost 95% of the state has some drought classification.  The extent of extreme drought statewide has not been matched since 2006.

For more information about the ongoing drought across North Texas, see our Drought Information Statement.

 

 

 U.S. Drought Monitor - March 29, 2011