088
FNUS72 KFFC 210925
FWSFFC

Spot Forecast for Emergency Communication Field Day/Exercise and...DeKalb County Office of Emergency Management
National Weather Service Peachtree City GA
525 AM EDT Fri Jun 21 2024

Forecast is based on forecast start time of 0600 EDT on June 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Good morning. A ridge of high pressure remains in place over much of
the Southeast, which will promote warm and dry conditions underneath
mostly clear skies across the majority of the area today.
Temperatures this afternoon are forecast to climb above 80 by 10 AM,
rising to above 90 after 3 PM this afternoon. The high temperature
at the site will be 92 in the mid to late afternoon today. With
relative humidity values below 50 percent through the afternoon,
heat index values today are not expected to be appreciably higher
than temperatures today. Winds will be from E today at 2-3 mph
through much of the morning, increasing to 5-7 mph by 11 AM and
through the afternoon.

We are continuing to monitor the tropical wave moving eastward
towards northeast Florida and southeast Georgia. The National
Hurricane Center is forecasting a 50 percent chance of this wave
developing into tropical cyclone (most likely a short-lived tropical
depression). Even if tropical development occurs, the system is
expected to remain weak. Showers and thunderstorms ahead of the
system will spread into southeast Georgia this afternoon, but will
remain far away from the exercise location.

As moisture associated with the disturbance continues to spread
north and west, there will be a noticeable increase in humidity
values on Saturday and Sunday. High temperatures on Saturday will
rise to 95 in the mod afternoon, with a heat index as high as 98 by
5 PM, and will be even warmer on Sunday. Furthermore, an isolated
shower or thunderstorm cannot be ruled out in the afternoon on
Saturday or Sunday, but the chances are low (around 10 percent), and
the highest chances for rain will once again be in the southeastern
part of the state. Please feel free to contact us at 770-486-1133
extension 4 if you have any further questions or concerns.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 92.
Min humidity........38 percent.
Heat index..........92.
Wind chill..........MISSING.
Surface winds (mph).East winds around 5 mph increasing to 6 to 7
                    mph in the afternoon.
Rainfall amount.....0.00 inches.
CEILING (KFT).......25.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   1   4   6   2   1   3   6   7   6   7   7
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............69  68  72  76  80  83  86  87  89  90  91  91
RH..............83  84  79  71  61  52  48  46  43  40  39  38
Heat index (F)..69  68  72  76  80  85  87  89  90  91  92  92
Wind chill (F)..M   M   M   M   M   M   M   M   M   M   M   M
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.2   2   2   2   2   5   6   6   7   7   7   7
Surface wnd gst.3   3   3   3   5   7   9   10  12  10  10  10
Ceiling (kft)...25  25  25  25  25  25  25  25  25  25  25  25

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 71.
Max humidity........83 percent.
Heat index..........94.
Wind chill..........MISSING.
Surface winds (mph).East winds 5 to 7 mph early in the evening
                    becoming light.
Rainfall amount.....0.00 inches.
CEILING (KFT).......25.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........9   8   7   7   12  13  12  11  6   8   12  14
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............91  91  89  85  82  80  78  76  75  74  73  72
RH..............38  39  41  48  55  58  62  65  67  71  76  80
Heat index (F)..92  91  90  86  83  80  78  76  75  74  73  72
Wind chill (F)..M   M   M   M   M   M   M   M   M   M   M   M
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.7   6   5   3   3   2   2   3   2   2   2   2
Surface wnd gst.10  9   8   6   5   5   5   5   5   5   5   5
Ceiling (kft)...25  25  25  25  25  25  25  25  25  25  25  25

.SATURDAY...

Sky/weather.........Sunny (20-30 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 95.
Min humidity........41 percent.
Heat index..........98.
Wind chill..........MISSING.
Surface winds (mph).East winds around 5 mph.
Rainfall amount.....0.00 inches.
CEILING (KFT).......25 decreasing to 15 late in the morning, then
                    decreasing to 9.0 late in the morning
                    decreasing to 3.5 late in the morning
                    increasing to 5.0 increasing to 6.0 late in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........17  22  25  27  31  33  32  29  28  27  26  25
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   10  10  10
Temp............71  72  74  78  81  84  87  89  91  92  93  94
RH..............83  83  82  74  68  62  56  52  48  45  43  41
Heat index (F)..71  72  74  78  85  89  91  93  95  96  96  98
Wind chill (F)..M   M   M   M   M   M   M   M   M   M   M   M
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.2   2   3   3   3   3   3   3   3   3   5   3
Surface wnd gst.3   5   5   6   6   6   6   6   6   7   7   7
Ceiling (kft)...25  25  25  15  9.0 3.5 4.0 5.0 5.0 6.0 6.0 6.0

$$
Forecaster...King
Requested by...EM Supervisor Scott Tibbetts
Type of request...OTHER
.TAG 2416444.0/FFC
.DELDT 06/21/24
.FormatterVersion 2.0.0
.EMAIL dekalbema@dekalbcountyga.gov