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The Data originates at the National Weather Service, and is
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UAlbany Department of Atmospheric and Environmental Sciences
Surface Observations
KDCA 220852Z 21005KT 10SM BKN200 08/M01 A2985 RMK AO2 SLP107 T00831006 56024=
KDCA 220952Z 24004KT 10SM BKN200 08/M01 A2985 RMK AO2 SLP108 T00781011=
KDCA 221052Z 20005KT 10SM BKN200 08/M02 A2984 RMK AO2 SLP103 T00781017=
KDCA 221152Z 20006KT 10SM BKN200 08/M01 A2982 RMK AO2 SLP099 T00831011 10106
20072 58008=
KDCA 221252Z 19007KT 10SM BKN200 10/M01 A2980 RMK AO2 SLP092 T01001006=
KDCA 221352Z 21007KT 10SM SCT160 BKN200 12/M02 A2980 RMK AO2 SLP090 T01171017=
KDCA 221452Z 21008KT 10SM BKN160 BKN220 15/M03 A2979 RMK AO2 SLP087 T01501028
56012=
KDCA 221552Z 19009KT 10SM FEW050 BKN110 BKN220 17/M02 A2975 RMK AO2 SLP075
T01721017=
KDCA 221652Z 24014G23KT 10SM SCT060 SCT200 19/M03 A2974 RMK AO2 SLP072
T01941033=
KDCA 221752Z 25010G23KT 10SM BKN100 18/M03 A2974 RMK AO2 PK WND 24031/1703
RAB21E33 SLP071 P0000 60000 T01831028 10200 20083 56016=
KDCA 221752Z COR 25010G23KT 10SM BKN100 BKN200 18/M03 A2974 RMK AO2 PK WND
24031/1703 RAB21E33 SLP071 P0000 60000 T01831028 10200 20083 56016=
KDCA 221852Z 28015G28KT 10SM SCT090 BKN200 21/M02 A2973 RMK AO2 PK WND
30028/1848 SLP066 T02061017=
KDCA 221952Z 30009G29KT 10SM SCT090 SCT200 20/M02 A2974 RMK AO2 PK WND
29032/1933 SLP070 T02001022=
KDCA 222052Z 28019G32KT 10SM SCT095 20/M03 A2975 RMK AO2 PK WND 26033/2029
SLP075 T02001028 53004=
KDCA 222152Z 28021G32KT 10SM SCT095 19/M03 A2979 RMK AO2 PK WND 27036/2138
SLP088 T01891033=
KDCA 222252Z 28014G22KT 10SM FEW050 SCT100 17/M02 A2984 RMK AO2 PK WND
31039/2208 SLP105 T01721022=
KDCA 222352Z 32023G32KT 10SM SCT095 16/00 A2988 RMK AO2 PK WND 33032/2352
SLP120 T01560000 10206 20156 53045=
KDCA 230052Z 33011G22KT 10SM SCT090 13/01 A2992 RMK AO2 PK WND 31032/0002
SLP133 T01330006=
KDCA 230152Z 36012KT 10SM SCT090 12/02 A2997 RMK AO2 SLP147 T01170017=
KDCA 230252Z 35012KT 10SM SCT080 10/01 A2998 RMK AO2 SLP151 T01000011 51031=
KDCA 230352Z 35011KT 10SM FEW080 11/00 A3000 RMK AO2 SLP158 T01060000=
KDCA 230452Z 34011KT 10SM FEW080 10/00 A3002 RMK AO2 SLP164 T01000000 402060072=
KDCA 230552Z 34014KT 10SM FEW080 09/M01 A3004 RMK AO2 SLP172 T00941011 10150
20089 53020=
KDCA 230652Z 34015G20KT 10SM CLR 08/M02 A3007 RMK AO2 SLP182 T00831017=
KDCA 230752Z 34015KT 10SM CLR 07/M03 A3009 RMK AO2 SLP188 T00721028=
Decoded Surface Observations
The weather observed at WASHINGTON DC, VA (KDCA) at 03:52 AM EST was:
The skies were mostly cloudy.
Temperature: 47F ( 8C) Dewpoint: 31F ( -1C) Relative Humidity: 53%
Winds from the SW (210 degs) at 6 mph.
Pressure: 1010.7 millibars. Altimeter:29.85 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 04:52 AM EST was:
The skies were mostly cloudy.
Temperature: 46F ( 8C) Dewpoint: 30F ( -1C) Relative Humidity: 53%
Winds from the SW (240 degs) at 5 mph.
Pressure: 1010.8 millibars. Altimeter:29.85 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 05:52 AM EST was:
The skies were mostly cloudy.
Temperature: 46F ( 8C) Dewpoint: 28F ( -2C) Relative Humidity: 49%
Winds from the SSW(200 degs) at 6 mph.
Pressure: 1010.3 millibars. Altimeter:29.84 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 06:52 AM EST was:
The skies were mostly cloudy.
Temperature: 47F ( 8C) Dewpoint: 30F ( -1C) Relative Humidity: 52%
Winds from the SSW(200 degs) at 7 mph.
Pressure: 1009.9 millibars. Altimeter:29.82 inches of mercury.
The prevailing visibility was 10 miles.
The maximum temperature in the past 6 hours was 51F.
The minimum temperature in the past 6 hours was 45F.
The weather observed at WASHINGTON DC, VA (KDCA) at 07:52 AM EST was:
The skies were mostly cloudy.
Temperature: 50F ( 10C) Dewpoint: 30F ( -1C) Relative Humidity: 46%
Winds from the S (190 degs) at 8 mph.
Pressure: 1009.2 millibars. Altimeter:29.80 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 08:52 AM EST was:
The skies were mostly cloudy.
Temperature: 54F ( 12C) Dewpoint: 28F ( -2C) Relative Humidity: 38%
Winds from the SW (210 degs) at 8 mph.
Pressure: 1009.0 millibars. Altimeter:29.80 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 09:52 AM EST was:
The skies were mostly cloudy.
Temperature: 59F ( 15C) Dewpoint: 27F ( -3C) Relative Humidity: 29%
Winds from the SW (210 degs) at 9 mph.
Pressure: 1008.7 millibars. Altimeter:29.79 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 10:52 AM EST was:
The skies were mostly cloudy.
Temperature: 63F ( 17C) Dewpoint: 28F ( -2C) Relative Humidity: 27%
Winds from the S (190 degs) at 10 mph.
Pressure: 1007.5 millibars. Altimeter:29.75 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 11:52 AM EST was:
The skies were partly cloudy.
Temperature: 66F ( 19C) Dewpoint: 27F ( -3C) Relative Humidity: 22%
Winds from the SW (240 degs) at 16 mph.
Pressure: 1007.2 millibars. Altimeter:29.74 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 12:52 PM EST was:
The skies were mostly cloudy.
Temperature: 65F ( 18C) Dewpoint: 27F ( -3C) Relative Humidity: 24%
Winds from the WSW(250 degs) at 12 mph.
Pressure: 1007.1 millibars. Altimeter:29.74 inches of mercury.
The prevailing visibility was 10 miles.
The maximum temperature in the past 6 hours was 68F.
The minimum temperature in the past 6 hours was 47F.
There has been 0.00 inches of precipitation in the past hour.
There has been 0.00 inches of precipitation in the past 6 hours.
The weather observed at WASHINGTON DC, VA (KDCA) at 12:52 PM EST was:
The skies were mostly cloudy.
Temperature: 65F ( 18C) Dewpoint: 27F ( -3C) Relative Humidity: 24%
Winds from the WSW(250 degs) at 12 mph.
Pressure: 1007.1 millibars. Altimeter:29.74 inches of mercury.
The prevailing visibility was 10 miles.
The maximum temperature in the past 6 hours was 68F.
The minimum temperature in the past 6 hours was 47F.
There has been 0.00 inches of precipitation in the past hour.
There has been 0.00 inches of precipitation in the past 6 hours.
The weather observed at WASHINGTON DC, VA (KDCA) at 01:52 PM EST was:
The skies were mostly cloudy.
Temperature: 70F ( 21C) Dewpoint: 28F ( -2C) Relative Humidity: 21%
Winds from the W (280 degs) at 17 mph.
Pressure: 1006.6 millibars. Altimeter:29.73 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 02:52 PM EST was:
The skies were partly cloudy.
Temperature: 68F ( 20C) Dewpoint: 28F ( -2C) Relative Humidity: 23%
Winds from the NW (300 degs) at 10 mph.
Pressure: 1007.0 millibars. Altimeter:29.74 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 03:52 PM EST was:
The skies were partly cloudy.
Temperature: 68F ( 20C) Dewpoint: 27F ( -3C) Relative Humidity: 21%
Winds from the W (280 degs) at 22 mph.
Pressure: 1007.5 millibars. Altimeter:29.75 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 04:52 PM EST was:
The skies were partly cloudy.
Temperature: 66F ( 19C) Dewpoint: 27F ( -3C) Relative Humidity: 22%
Winds from the W (280 degs) at 24 mph.
Pressure: 1008.8 millibars. Altimeter:29.79 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 05:52 PM EST was:
The skies were partly cloudy.
Temperature: 63F ( 17C) Dewpoint: 28F ( -2C) Relative Humidity: 27%
Winds from the W (280 degs) at 16 mph.
Pressure: 1010.5 millibars. Altimeter:29.84 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 06:52 PM EST was:
The skies were partly cloudy.
Temperature: 60F ( 16C) Dewpoint: 32F ( 0C) Relative Humidity: 35%
Winds from the NW (320 degs) at 26 mph.
Pressure: 1012.0 millibars. Altimeter:29.88 inches of mercury.
The prevailing visibility was 10 miles.
The maximum temperature in the past 6 hours was 69F.
The minimum temperature in the past 6 hours was 60F.
The weather observed at WASHINGTON DC, VA (KDCA) at 07:52 PM EST was:
The skies were partly cloudy.
Temperature: 55F ( 13C) Dewpoint: 34F ( 1C) Relative Humidity: 44%
Winds from the NW (330 degs) at 13 mph.
Pressure: 1013.3 millibars. Altimeter:29.92 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 08:52 PM EST was:
The skies were partly cloudy.
Temperature: 54F ( 12C) Dewpoint: 36F ( 2C) Relative Humidity: 50%
Winds from the N (360 degs) at 14 mph.
Pressure: 1014.7 millibars. Altimeter:29.97 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 09:52 PM EST was:
The skies were partly cloudy.
Temperature: 50F ( 10C) Dewpoint: 34F ( 1C) Relative Humidity: 54%
Winds from the N (350 degs) at 14 mph.
Pressure: 1015.1 millibars. Altimeter:29.98 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 10:52 PM EST was:
The skies were mostly clear.
Temperature: 52F ( 11C) Dewpoint: 32F ( 0C) Relative Humidity: 47%
Winds from the N (350 degs) at 13 mph.
Pressure: 1015.8 millibars. Altimeter:30.00 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 11:52 PM EST was:
The skies were mostly clear.
Temperature: 50F ( 10C) Dewpoint: 32F ( 0C) Relative Humidity: 50%
Winds from the NNW(340 degs) at 13 mph.
Pressure: 1016.4 millibars. Altimeter:30.02 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 12:52 AM EST was:
The skies were mostly clear.
Temperature: 49F ( 9C) Dewpoint: 30F ( -1C) Relative Humidity: 48%
Winds from the NNW(340 degs) at 16 mph.
Pressure: 1017.2 millibars. Altimeter:30.04 inches of mercury.
The prevailing visibility was 10 miles.
The maximum temperature in the past 6 hours was 59F.
The minimum temperature in the past 6 hours was 48F.
The weather observed at WASHINGTON DC, VA (KDCA) at 01:52 AM EST was:
The skies were clear.
Temperature: 46F ( 8C) Dewpoint: 28F ( -2C) Relative Humidity: 49%
Winds from the NNW(340 degs) at 17 mph.
Pressure: 1018.2 millibars. Altimeter:30.07 inches of mercury.
The prevailing visibility was 10 miles.
The weather observed at WASHINGTON DC, VA (KDCA) at 02:52 AM EST was:
The skies were clear.
Temperature: 45F ( 7C) Dewpoint: 27F ( -3C) Relative Humidity: 49%
Winds from the NNW(340 degs) at 17 mph.
Pressure: 1018.8 millibars. Altimeter:30.09 inches of mercury.
The prevailing visibility was 10 miles.
Short Range Forecast
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Zone Forecast
DCZ001-230900-
District of Columbia-
Including the city of Washington
133 AM EDT Sun Mar 23 2025
.OVERNIGHT...Mostly clear. Lows in the mid 30s. Northwest winds
5 to 10 mph with gusts up to 20 mph.
.SUNDAY...Mostly sunny. Highs in the mid 50s. Northwest winds
around 5 mph, becoming southwest in the afternoon.
.SUNDAY NIGHT...Cloudy. Showers likely after midnight. Lows in
the mid 40s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
Chance of rain 70 percent.
.MONDAY...Cloudy with showers likely in the morning, then partly
sunny with a chance of showers in the afternoon. Highs in the
upper 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Chance of rain 70 percent.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. West winds
10 to 15 mph.
.TUESDAY...Mostly sunny. Highs around 60.
.TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of
showers. Lows around 40.
.WEDNESDAY...Mostly sunny with a 40 percent chance of showers.
Highs in the upper 50s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 30s.
.THURSDAY...Sunny. Highs in the upper 50s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s.
.FRIDAY...Partly sunny. Highs in the mid 60s.
.FRIDAY NIGHT...Mostly cloudy. Lows in the upper 40s.
.SATURDAY...Partly sunny. Highs in the lower 70s.
State Forecast
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State Forecast Discussion
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GFS Short-Range Model Output Statistics (MOS) Forecast
KDCA GFS MOS GUIDANCE 3/23/2025 0000 UTC
DT /MAR 23 /MAR 24 /MAR 25 /
HR 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 18 00
X/N 56 47 67 45 64
TMP 46 43 41 47 53 55 52 50 49 49 50 56 63 65 59 54 50 47 47 61 55
DPT 30 27 25 23 24 27 31 34 37 40 43 45 40 36 34 33 32 31 31 32 32
CLD FW CL FW SC FW BK OV OV OV OV OV OV OV SC SC BK BK BK BK OV OV
WDR 35 35 36 34 18 17 12 13 16 16 18 22 25 25 24 26 27 26 25 27 29
WSP 11 10 07 06 05 06 08 13 13 09 08 07 10 12 07 06 06 05 05 11 07
P06 1 0 0 17 51 77 9 5 7 4 9
P12 0 51 80 8 12
Q06 0 0 0 0 1 2 0 0 0 0 0
Q12 0 1 2 0 0
T06 1/ 0 1/ 0 1/ 0 1/ 0 0/ 1 0/ 5 0/16 0/ 9 2/ 1 3/11
T12 2/ 0 2/ 0 1/ 6 0/18 2/ 3
POZ 0 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 0
POS 24 49 63 50 20 5 0 0 0 0 0 0 0 0 0 2 9 9 14 11 13
TYP R S S S R R R R R R R R R R R R R R R R R
SNW 0 0
CIG 8 8 8 8 8 8 8 7 7 4 6 4 8 8 8 8 8 8 8 8 7
VIS 7 7 7 7 7 7 7 7 7 7 7 5 7 7 7 7 7 7 7 7 7
OBV N N N N N N N N N N N HZ N N N N N N N N N
GFS Long-Range Model Output Statistics (MOS) Forecast
KDCA GFSX MOS GUIDANCE 3/23/2025 0000 UTC
FHR 24| 36 48| 60 72| 84 96|108 120|132 144|156 168|180 192
SUN 23| MON 24| TUE 25| WED 26| THU 27| FRI 28| SAT 29| SUN 30 CLIMO
X/N 56| 47 67| 45 64| 42 61| 40 60| 46 62| 51 62| 45 60 38 60
TMP 52| 50 59| 47 55| 44 52| 42 54| 48 59| 53 56| 47 55
DPT 31| 43 34| 31 32| 28 20| 27 29| 40 48| 45 42| 40 40
CLD PC| OV OV| PC OV| PC CL| CL PC| PC OV| OV OV| OV OV
WND 8| 13 12| 7 11| 8 17| 10 9| 6 14| 8 8| 7 8
P12 0| 51 80| 8 12| 22 8| 6 6| 7 29| 39 34| 30 38 22 23
P24 | 83| 18| 25| 6| 32| 56| 46 33
Q12 0| 1 2| 0 0| 0 0| 0 0| 0 0| 1 |
Q24 | 2| 0| 0| 0| 0| |
T12 1| 2 0| 2 3| 2 1| 2 2| 1 6| 6 5| 2 9
T24 | 2 | 2 | 3 | 3 | 3 | 11 | 10
PZP 0| 0 1| 0 0| 0 0| 2 1| 0 0| 0 1| 0 2
PSN 17| 0 0| 0 0| 12 20| 11 9| 3 0| 3 1| 3 0
PRS 0| 0 1| 6 10| 19 28| 23 22| 2 1| 1 2| 2 3
TYP R| R R| R R| R RS| R R| R R| R R| R R
SNW | 0| 0| 0| 0| 0| |
NGM Model Output Statistics (MOS) Forecast
Climatological Summary
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Watch and Warning Statment
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Park/Ski Recreation Report/Forecast
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