Tropical weather pattern continues 

Posted: 6:16 am Wednesday, August 1st, 2018

By Kirk Mellish

As stated days ago it will not rain everywhere all the time, but a shower will be possible anytime of the day or night. However, peak coverage and intensity will reach a maximum in the afternoon and early evening hours, at least on most days.

Tropical downpours with huge rain drops will be on and off the next few days along with isolated thunderstorms in the mix at times.

Greater than normal cloud cover and high humidity will continue as well along with cooler than normal high temperatures.

FLASH FLOOD WATCH (green) continues metro wide through 8am Friday:

Screen Shot 2018-08-01 at 5.57.01 AM

There were some strong thunderstorms in spots yesterday but NO SEVERE WEATHER occurred.

RADAR estimated rainfall from TUESDAY shows amounts averaged 1/2 to 1 inch but with 2-3 inches in some areas, mainly near or north of I-85.  Outside the metro area a small part of POLK COUNTY had 5 inches:

Screen Shot 2018-08-01 at 4.34.26 AM

Why so much moisture in the air? Because of where the air is coming from, the SOURCE REGION of our air mass is right out of the tropics, no need to go to Jamaica, Cuba, Bermuda, or the Bahamas as their air is coming here as you can see below:

Screen Shot 2018-08-01 at 8.11.27 AM

No big change in the synoptic weather charts for the rest of the week, then the front falls apart over the weekend and more high pressure builds over the area into early next week, this will allow for a reduction in the rain and storm coverage and an increase in sun and heat over that time frame.

SURFACE WEATHER CHART WEDNESDAY AFTERNOON AND EVENING:

Screen Shot 2018-08-01 at 5.26.03 AM

SEVERE WEATHER RISK WEDNESDAY:

GA_swody1

SURFACE WEATHER CHART THURSDAY AFTERNOON AND EVENING:

Screen Shot 2018-08-01 at 5.27.08 AM

The WEEKEND rain and thunderstorm chance will NOT be zero, it will just lower to more normal or typical levels for late summertime in Atlanta.

FLOOD RISK ZONES WEDNESDAY:

94ewbg

FLOOD RISK ZONES THURSDAY:

98ewbg

Additional rainfall amounts expected to average 1 to 1.5 inches the next 24 hours, and then another 1.5 inches on average Thursday. Then rain amounts on Friday expected to average a tenth to a quarter of an inch.

Again the word average means some locations get much less and some get much more.

3-DAY ADDITIONAL RAINFALL ESTIMATED AVERAGE AMOUNTS:

Screen Shot 2018-08-01 at 9.43.11 AM

 

Follow me on Twitter @MellishMeterWSB.

 

 

 

 

 

0 comments