032
FNUS71 KLWX 191642
FWSLWX

Spot Forecast for NCR...DOI
National Weather Service Baltimore MD/Washington DC
1142 AM EST Sun Jan 19 2025

Forecast is based on forecast start time of 1200 EST on January 19.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Rain and sleet will continue across the event location through 1pm this afternoon before
a transition to wet snow and sleet for the remainder of the afternoon into the early
evening hours. Temperatures will continue to hover in the mid to upper 30s prior to 3pm
before falling later this afternoon and into the early evening hours. Snow character will
remain wet as a result with rates up to 1"/hr as the heaviest precip falls between 2-5pm.
Winter precipitation will exit the event location between 7-9pm. Expected snowfall amounts
will range between 1-3 inches across the immediate Washington DC area. Amounts may trend
toward the lower end of the range given the warmer air aloft hanging on longer.

Skies will slowly clear tonight as high pressure builds into the region. Northwest winds
will increase to 12 to 18 mph sustained with gusts up to 25 mph at times as low pressure
departs the region. These increased northwesterly winds will push low temperatures down
to 20 degrees. The combination of increased northwesterly winds and cold temperatures will
yield wind chills in the mid to upper teens later this evening and into the overnight hours.

Brisk and blustery conditions are expected Monday as Arctic high pressure builds into the
region. High temperatures will struggle to push into the low 20s with northwest gusts
sustained at 12 to 18 mph gusting up to 35 mph at times. This will yield wind chills
in the upper single digits throughout the day. Wind chills will continue to fall late
afternoon and early evening with subzero values expected Monday night. Dry conditions will
prevail with no additional precipitation expected.


.REST OF TODAY...

Sky/weather.........Cloudy (95-100 percent shading). Rain, snow and light
                    sleet. Snowfall accumulation of 1 to 3 inches expected.
Max temperature.....Around 39.
Min humidity........81 percent.
Surface winds (mph).North winds 7 to 9 mph increasing to 12 to 13
                    mph late in the afternoon.

TIME (EST)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........98  100 100 100 100 100
Weather cov.....DEF DEF DEF DEF DEF DEF
Weather type....RN  SN  SN  SN  SN  SN
Tstm cov........
Temp............38  36  35  33  32  31
RH..............89  85  89  89  85  85
Surface wnd dir.NE  NE  N   N   N   N
Surface wnd spd.7   7   8   9   12  13
Surface wnd gst.10  13  15  17  20  22

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent shading) then becoming
                    partly cloudy (20-30 percent shading). Snow early in
                    the evening before 8pm.
Min temperature.....Around 20.
Max humidity........89 percent.
Surface winds (mph).Northwest winds 12 to 15 mph.

TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........100 100 82  64  47  35  23  11  10  8   7   8
Weather cov.....DEF DEF
Weather type....SN  SN
Tstm cov........
Temp............30  29  28  28  26  25  25  24  24  23  23  22
RH..............85  85  81  78  81  78  74  74  71  71  71  71
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W   W
Surface wnd spd.14  14  15  14  14  14  14  14  13  12  12  12
Surface wnd gst.23  24  25  25  25  24  23  22  21  20  18  17

.MARTIN LUTHER KING JR DAY...

Sky/weather.........Sunny (15-25 percent shading).
Max temperature.....Around 23.
Min humidity........47 percent.
Surface winds (mph).West winds 12 to 18 mph. Gusts up to 35 mph
                    increasing late morning and into the afternoon.

TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   11  17  22  28  28  27  27  26  24  22  15
Weather cov.....
Weather type....
Tstm cov........
Temp............21  21  21  22  23  23  23  23  23  22  21  20
RH..............74  71  68  62  57  54  52  50  47  49  49  49
Surface wnd dir.W   W   W   NW  NW  NW  W   W   W   W   W   W
Surface wnd spd.12  13  14  16  17  18  18  18  17  16  15  13
Surface wnd gst.17  17  21  25  29  31  33  30  28  25  22  18

$$
Forecaster...Taylor
Requested by...Lia McDonald
Type of request...OTHER
.TAG 2500906.0/LWX
.DELDT 01/19/25
.FormatterVersion 2.0.0
.EMAIL lia_mcdonald@Ios.doi.gov