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Anne Arundel Co.
 Details for Anne Arundel Co. Dense Fog Advisory
 Carroll Co.
 Details for Carroll Co. Dense Fog Advisory
 Frederick Co.
 Details for Frederick Co. Dense Fog Advisory
 Harford Co.
 Details for Harford Co. Dense Fog Advisory
 Howard Co.
 Details for Howard Co. Dense Fog Advisory
 Montgomery Co.
 Details for Montgomery Co. Dense Fog Advisory  +1 additional alert
 Prince Georges Co.
 Details for Prince Georges Co. Dense Fog Advisory
 Northern Baltimore Co.
 Details for Northern Baltimore Co. Dense Fog Advisory
 Southern Baltimore Co. & City
 Details for Southern Baltimore Co. & City Dense Fog Advisory

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Dense Fog Advisory DENSE FOG ADVISORY - Anne Arundel Co.  - Carroll Co.  - Frederick Co.  - Harford Co.  - Howard Co.  - Montgomery Co.  - Northern Baltimore Co.  - Prince Georges Co.  - Southern Baltimore Co. & City
Test Message TEST MESSAGE - Montgomery Co.

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Radar Legend
Bless America
Morning OBSERVATIONS: Its morning,overcast/fog and it feels cool outside. The temperature has been rising for the last few hours. There is a light air from the east. Visibility is about 1/4 mile(s). The sky is cloudy. The barometer has been steady over the last hour. So far no measurable precipitation has been observed today.
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Updated: 10-Dec-2024 @ 10:47am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.1°F than last hour.

47.5°F

Cool
High Today
47.6°F
10:13 		Low Today
43.5°F
04:19
Yest High
54.6°F
15:32 		Yest Low
34.4°F
05:38
Station High
65.9°F
2008* 		Station Low
18.5°F
2005*
BWI High
72.0°F
1966 		BWI Low
1.0°F
1876
* This Station's Records Since 8/2004
Overcast, Fog Overcast, Fog

Wind from E Wind:  E
1.7
Gusting to:
 2.3 mph
Current Rain Rain:
0.00 in
Fire Weather Index: MINIMAL Current FWI:4
Fire Danger:
0.8 of 232
Today

Today: Areas Of Fog
Areas Of Fog
Tonight

Tonight: Areas Of Fog
Areas Of Fog
Wednesday

Wednesday: Areas Of Fog then Rain
Areas Of Fog then Rain
Hi 53 °F Lo 50 °F Hi 61 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.1°F since last hour. 45.9°F
Last Hour: Increased 0.1°F since last hour. +0.1°F
High 10:13: 46.0°F
Low 04:15: 41.5°F
Record High: 87.6°F on
16-Aug-2017
Record Low: -34.2°F on
17-Nov-2005
Wetbulb: 46.7°F
Today: 0.00 in
Storm Rain: 0.04 in
Yesterday: 0.04 in
Last 7 Days: 0.04 in
Dec Rain: 0.04 in
Dec to Date
  Avg:10 		0.11 in
Dec to Date
  Diff from Avg:10 		Under 0.07 in for the month 0.07 in
Dec Avg: 3.63 in
Diff from Avg: Under 3.59 in for the month 3.59 in
Season:1 32.98 in
YTD
  Avg:11 		39.42 in
YTD
  Diff from Avg:11 		Under 6.44 in for the year 6.44 in
Last Rain
Time/Date: 		9-Dec-2024
at 13:33
118 rain days in 2024
1 day in December
0 days since last rain
Current: E  1.7 mph
1Hr Average: 2.8 mph
Wind Run: 4.85 miles
Wind Gust
Current: 2.3 mph
Today: 6.9 mph 10:39
Month: 40.3 mph 5-Dec
Year: 64.4 mph 5-Mar
Record Gust: 92.0 mph
19-Sep-2003
Sunlight:
9 h 31 m 38 s
of Sunlight Yesterday
9 h 30 m 57 s
of Sunlight Today Which is 41 sec shorter than
yesterday
9 h 30 m 19 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)

Waxing Gibbous
Waxing Gibbous, 9 days, 9 hours, 30 minutes in cycle
73%
Illuminated
Humidity Barometer
Current: No Change 94%
Last Hour: No Change 0%
High 07:27: 94%
Low 00:00: 92%
Record High: 100%
29-Sep-2005
Record Low: 0%
17-Aug-2023
Current: Falling 0.5 mb/hr 1015.4 mb
Last Hour: Steady
High 09:28: 1015.9
Low 04:16: 1012.8
Record High: 1045.5 mb
28-Feb-2015
Record Low: 963.4 mb
29-Oct-2012
Heating Degree Days Lightning Strikes Wind Chill Air
Today: 8.8
Dec: 270.3
2024 to Date: 3195.6
Cooling Degree Days
2024 to Date: 1673.5
Last Min: 0
Last 5 Mins: 0
Last 30 Mins: 1
Last 60 Mins: 2
Last 12 Hrs: 8
Dec: 575
2024 to Date: 91523
Last
Strike:		 10:28:48
10-Dec-2024
Current: 47.5°F
Low 04:19: 43.6°F
Yesterday: 34.4°F
Record: -25.1°F
21-Jan-2019
Quality Index:6
56

Moderate

Davis AirLink Sensor
Quality Index:12
71.5

 Moderate Air Quality 
Particulate Matter Concentration mcg/m3
PM1.0: 14.3    PM2.5: 21.9    PM10: 28.3
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
00:00
0.0
95 W/m2
24%
W/m2 ⇒ SI 		High Today:
10:04
 125  W/m2
Record:
1517 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 60.4°F
Sunrise: 07:15
Sunset: 16:43
Moonrise: 13:25
Moonset: 01:36
Full Moon: 15-Dec-2024
New Moon: 22:27 UTC
30-Dec-2024
Updated at Midnight
Current ET: 0.01 in
7-Days Rain: 0.04 in
7-Days ET: 0.32 in
7-Day: 0.283 in water in deficit of what evaporated in last 7 days. 0.283 in
December: 0.36 in water in deficit of what evaporated this month. 0.36 in
HIGHS: LOWS:
104.2°F
16-Jul-2024 		-0.0°F
1-Mar-2011
Daytime Records
  103.1°F
16-Jul-2024 		  0.5°F
23-Nov-2019
Nitetime Records
  90.3°F
08-Jul-2012 		  -0.0°F
01-Mar-2018
ICN:6 | S3C2:4 | Ajax 3.xx
ISS:Ok | CON:4.7V | RCP:100%
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured and updated as required.   4 Updated at Noon Eastern Standard Time.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index for Metro Balto, MD (9) is provided by AirNow and is updated hourly between the hours of 6AM and Midnight.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.   10 Historical average only to day 10 of just the month of December for this station since 2005.   11 Historical average rain this season to day 10 of December for this station since 2005.   12 Data from Davis AirLink AQ Sensor located at Halethorpe Weather-Watch.   13 NWS Zone Forecast (MDZ011).   14 NWS County Forecast (MDC005).  
 NWS Weather Forecast  -   Outlook Today & Tonight
Today

Today: Areas Of Fog
Areas Of Fog

Hi 53 °F 		NWS zone forecast:13 Areas of fog. Cloudy, with a high near 53. Southeast wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
 NWS county forecast:14 Cloudy. Rain likely this afternoon. Highs in the lower 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. Tonight

Tonight: Areas Of Fog
Areas Of Fog

Lo 50 °F 		NWS forecast:13 Areas of fog. Cloudy. Low around 50, with temperatures rising to around 59 overnight. South wind 7 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
 NWS Short Term Weather Forecast
Wednesday

Wednesday: Areas Of Fog then Rain
Areas Of Fog then Rain
Wednesday
Night
Wednesday Night: Rain then Partly Cloudy
Rain then Partly Cloudy
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday

Saturday: Partly Sunny then Slight Chance Light Rain
Partly Sunny then Slight Chance Light Rain
Hi 61 °F Lo 30 °F Hi 38 °F Lo 22 °F Hi 38 °F Lo 28 °F Hi 45 °F
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