A series of upper level disturbances, lining up from south to north across northeastern Mexico into the Lower Rio Grande Valley and Deep South Texas, during the first full week of July, acted on residual deep tropical moisture left by a dissipating weak tropical wave at the end of June, to produce a prolonged period of cloudiness and locally heavy showers, which added up to an area average of 4 to 8 inches, with locally higher amounts, extending westward into Starr and Brooks County.
The heaviest rainfall was concentrated from eastern Hidalgo into Cameron County, where locally 9 to 10 inches fell in a few spots. Due to the spring and early summer drought, much of the rain was welcome relief for dry soils, though nuisance urban/poor drainage flooding resulted, particularly by the end of the wet period on July 7th and 8th.
Higher rain totals for the period July 1st through 8th included: 10.55 inches 5 miles south southeast of San Benito; 9.33 inches near Rancho Viejo, and 6.17 and 6.18 inches, respectively at Brownsville International Airport and Harlingen Valley Airport (all in Cameron County).  In Hidalgo County, 6.31 inches fell at the Weslaco/Mid Valley airport, and 4.87 at McAllen/Miller airport.

Heavy Rain in CAMERON, TEXAS
From 07-JUL-08 10:30:00 to 07-JUL-08 14:00:00 (CST-6)
Location: HARLINGEN
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads in typically poor drainage locations sustained minor flooding in Harlingen when persistent bands of torrential rains moved through the western half of Cameron County during the morning and early afternoon of July 7th.  In general, rainfall between 2 and 3 inches fell during this time period, near the end of a weeklong welcome drenching that  that dropped between 6 and 9 inches, perhaps higher in a few spots, across the more populated areas of the Lower Rio Grande Valley.

Extensive street flooding was reported in Harlingen and San Benito.  This included the Fair Park area of Harlingen, First Street in Harlingen, particularly near the Highway 83 and 77 interchange near downtown. Numerous streets also experienced minor flooding in San Benito, and heavy rains affected construction sites in La Feria near the Hidalgo County line.
Brownsville had more nuisance problems with widespread ponding in poor drainage locations, such as those on Boca Chica Boulevard between McDavitt and Security Drive.  In all cases, structures were not threatened, and there were no casualties.
The rains ended before mid afternoon on the 7th, and minor street flooding subsided.

Heavy Rain in WILLACY, TEXAS
From 07-JUL-08 10:45:00 to 07-JUL-08 14:00:00 (CST-6)
Location: RAYMONDVILLE
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A number of roads in typically poor drainage locations of Raymondville sustained minor flooding, when persistent bands of torrential rains moved through the western half of Willacy County during the morning and early afternoon of July 7th.  In general, rainfall between 2 and 3 inches fell during this time period, near the end of a weeklong welcome drenching that  that dropped between 5 and 7 inches, perhaps higher in a few spots, across the more populated areas of the Lower Rio Grande Valley, stretching north and northwest toward the King Ranch (Kenedy County) and northeast Hidalgo County.

Street flooding seeped into the the Raymondville City Hall, soaking some carpeting and forcing crews to sandbag the doorways.  Other streets were blocked by Law Enforcement to prevent vehicles from pushing floodwaters into stores in poor drainage areas of downtown. As of this writing, no significant damage was reported.
The rains ended by mid afternoon on the 7th, and minor street flooding subsided.

Heavy Rain in JIM HOGG, TEXAS
From 08-JUL-08 04:00:00 to 08-JUL-08 04:45:00 (CST-6)
Location: RANDADO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Jim Hogg County Sheriff's Department reported the southbound lane of Route 16 experienced nuisance flooding, with one half to one inch of water covering the road for a distance of approximately 3 miles, approximately 13 miles southwest of Hebbronville.