Rain Chances Picking Up
We had a round of afternoon thunderstorms today, brief heavy rain and gusty winds were scattered over the Metroplex into the evening. Meanwhile out west another line of severe weather has formed; overnight these storms will make it into our western counties:
Remnants of this squall line could produce a few morning showers in the Metroplex. High pressure anchored over Florida over the next several days will continue to pump in more moisture. This will increase cloud cover and storm chances for tomorrow and into mid-week. At the same time an upper-level disturbance will stick around to our north helping storms develop:
Rain chances will be better tomorrow afternoon and even higher on Monday. Temperatures will also be a few degrees cooler thanks to the additional moisture:
We always think of summer as our dry months. That would be correct for July and August but June is our third wettest month on average. This is due in large part to the Atlantic hurricane season. Even though we don't expect an active year (we are in the midst of an El Nino) in the month of June we can get tropical depressions or storms develop in the Gulf/Yucatan region and move into the Texas coast. It looks like this might happen on Tuesday or Wednesday. The slew of hurricane forecast tracks seem to converge on Houston. Forecast models are showing 4"-5" of rain could fall there:
This means a change of heavy rain returns to north Texas while the lakes and rivers are still running high. We'll have to watch for flooding. Tropical moisture is very deep and very thick; any storms that form would bring copious rainfall.
The good news is that the 90° days are leaving for a while. After ten days in a row of 90's at DFW Airport it "only" hit 89° today. I expect highs only in the low 80's when the bulk of this tropical moisture arrives by Wednesday. The dewpoints however will be oppressive, in the low 70's everyday in the week ahead:
