July has been a truly odd weather month by north Texas standards with two record low maximum temperatures recorded back to back on July 17 and 18, a torrential downpour of 11 inches of rain on the morning of the 17th in northern Denton and southern Cooke counties, and an incredible three frontal passages during the month – all but unheard for Dallas in July.
Ironically, despite the July 17th deluge, most Metroplex area lakes didn’t go up much. The exception was Lake Ray Roberts, rising two feet in the 24 hours after the rainfall event. Other lake changes include Grapevine Lake which did rise about three-fourths of a foot, but Lake Lavon, at only 49.8% of capacity and in about the worst shape for any major north Texas lake, didn’t rise at all.
The Metroplex cooked in 100+ heat the weekend of July 25-27 with maximum temperatures on the 27th reaching 103 at DFW and Dallas Love Field, 104 in Fort Worth and 102 in Arlington. Things cooled down behind a front on the 28th with highs in the mid 90s on July 28.
July will wind down with some precipitation in the forecast.
Northwesterly steering flow aloft will bring a rainmaker (trough) southward mid-week, and there’s potential for heavy rainfall along its track. However, it looks like the Dallas area will get the short end of the rain stick with this event, as the trough looks to stay just a bit too far to our north.
The good news is we’ll likely get some rain, and a southward deviation of less than 100 miles in the trough’s movement would bring much greater rainfall potential to the Metroplex – stay tuned.