664
FNUS71 KLWX 140121
FWSLWX

Spot Forecast for Frederick County Flooding...Frederick County Emergency Management
National Weather Service Baltimore MD/Washington DC
921 PM EDT Tue May 13 2025

Forecast is based on forecast start time of 2200 EDT on May 13.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...

A low pressure system will slowly move northeastward from just
south of Cincinnati Ohio toward our forecast region over the
next 24 hours, bringing widespread showers with embedded
thunderstorms. The low will start to pull away Thursday, but
showers and thunderstorms remain possible. Another low pressure
system will quickly move toward the Great Lakes, with more showers
and thunderstorms possible Friday and Saturday.

.REST OF TONIGHT...

Sky/weather.........Cloudy (90-100 percent). Widespread showers and
                    chance of thunderstorms late in the evening,
                    then showers likely and chance of thunderstorms
                    overnight. Patchy fog overnight.
Min temperature.....Around 60.
Surface winds (mph).East winds 5 to 9 mph with gusts to around 22
                    mph in the late evening and overnight becoming
                    light.

TIME (EDT)      10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........96  96  94  94  93  92  92  91
Weather cov.....WID NUM NUM NUM LKY LKY LKY CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC SCH SCH SCH
Temp............62  61  61  61  61  61  60  60
Surface wnd dir.SE  E   E   E   E   E   E   E
Surface wnd spd.8   9   8   8   5   3   3   3
Surface wnd gst.22  22  17  17  12  7   12  10

.WEDNESDAY...

Sky/weather.........Cloudy (85-95 percent). Patchy fog early in the
                    morning. Chance of showers in the morning, then
                    showers and slight chance of thunderstorms in
                    the afternoon.
Max temperature.....Around 71.
Surface winds (mph).Light winds becoming east 5 to 6 mph in the
                    late morning and afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........90  90  89  88  88  87  85  86  88  86  87  89
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC LKY LKY LKY DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                                SCH SCH SCH SCH
Temp............60  60  61  63  65  66  67  68  69  70  71  70
Surface wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Surface wnd spd.3   3   3   5   5   5   6   6   6   6   6   6
Surface wnd gst.10  9   8   9   9   10  10  12  12  12  12  12

$$
Forecaster...Witt
Requested by...Amie Fuller
Type of request...SAR
.TAG 2513942.0/LWX
.DELDT 05/13/25
.FormatterVersion 2.0.0
.EMAIL afuller@fcva.us