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Mid Atlantic Radar Baltimore Radar

Updated: @ 21-Dec-2014 8:13pm - next update at 12:00am  
Summary/Temperature Wind Rain Outlook


Night time, Dry
Night time, Dry
Currently 32.6F, Max: 41.4F, Min: 30.2F 32.6°F
Colder 1.2°F than last hour.

---

Feels like: 33°F

24-hr difference
-0.8°FColder 0.8°F than yesterday at this time.
RELAY HIGH LOW
Today: 41.4°F
2:02pm
30.2°F
12:25am
Yesterday: 37.3°F
3:42pm
26.4°F
5:40am
NWS
Normal:
Record:
Year:
HIGH
44.1°F
71.1°F
2013
LOW
27.0°F
5.0°F
1942
 Wind from NNE NNE
0.3

Gust:
0 mph

Max Gust: 10 12:36pm
Gust Month:   33   Dec 10
Rain Today: 0.00 in
Rain Yesterday: 0.000 in
Storm Rain Total: 0.00 in
December Total: 2.110 in
MTD Departure: -0.45 in
Year Total: 43.055 in
YTD Departure: + 2.19 in
9 rain days in December
Monday

Wintry Mix. Chance for Measurable Precipitation 50%
Wintry
Mix
Barometer Humidity Air Quality
Current: 30.325 inHg Rising 0.015 °F/hr
1-Hr Trend: Rising slowly  
3-Hr Trend: Rising slowly 
High: 30.356  | Low: 30.262
Humidity: 73 % Decreased 2% since last hour.
Humidex: 27.1°F
Dew Point: 24.9°F Decreased 1.9°F since last hour.
Wetbulb: 29.9°F
Current AQI

68


  Moderate
UV Index Forecast 7-Day Averages
21 Dec 2014     1.4
22 Dec 2014     1.4
23 Dec 2014     1.5
Temperature: 38.3 °F
Humidity: 74.8 %
Barometer: 30.100 inHg
Wind Chill Heating Degree Days Sun
Current: 32.6F°F
Today: 28.6 F°F  5:37am
Yesterday: 19.1 F
Last Week: 16.8 °F
Record: -38.2°F   07-Jan-2014
Today: 27.4
December: 540.1
2014 to Date: 4705.5
Cooling Degree Days
2014 to Date: 1047.5
Daylight:
graph
37.8% 62.2% 9:24 min.
+00:01:01 Minutes
-05:31 since Jun 21
Snow Trends Balt. Harbor Tides Clouds



Today: 0.00 in
Yesterday: 0.00 in
December: 0.00 in
Season Total: 0.25 in
Snow Depth: 0.00 in
0 snow day in December
1 snow day this season
Temp Last Hr: -1.3°F Colder 1.2°F than last hour.
Hum. Last Hr: -2% Decreased 2% since last hour.
Dew Last Hr: -1.9°F Decreased 1.9°F since last hour.
Baro Last Hr: +0.015 inHg Increased 0.015 inHg since last hour.
   
Climate Change Trend

     
Current 12 Month Temperature Trend
-2.18°F
Sun 21 December
Low Tide: 00:48 0.0 ft
High Tide: 05:26 0.8 ft
Low Tide: 11:39 - 0.4 ft
High Tide: 18:15 1.5 ft

5 hrs, 17 min. to low tide
Time Till Tide
Current Cloud Height
NWS Weather Forecast  -  Tonight's and Monday's Outlook
Tonight

Partly Cloudy
Partly
Cloudy

Lo 29 °F
NWS forecast: Partly cloudy, with a low around 29. Calm wind.
  Monday

Wintry Mix. Chance for Measurable Precipitation 50%
Wintry
Mix

Hi 36 °F
NWS forecast: A slight chance of rain, freezing rain, and sleet before 9am, then a chance of rain. Mostly cloudy, with a high near 36. Calm wind becoming northeast around 6 mph in the morning. Chance of precipitation is 50%.
NWS 4 Day Weather Forecast - Last Update: 7:47 pm EST Dec 21, 2014
Monday
Night

Rain Likely. Chance for Measurable Precipitation 60%
Rain
Likely
Tuesday

Chance Rain. Chance for Measurable Precipitation 30%
Chance
Rain
Tuesday
Night

Rain. Chance for Measurable Precipitation 80%
Rain
Wednesday

Rain. Chance for Measurable Precipitation 90%
Rain
Wednesday
Night

Rain. Chance for Measurable Precipitation 80%
Rain
Christmas
Day

Partly Sunny
Partly
Sunny
Thursday
Night

Partly Cloudy
Partly
Cloudy
Lo 36 °FHi 47 °F Lo 44 °FHi 64 °F Lo 43 °FHi 50 °F Lo 34 °F
Today's Temperature Facts
Todays high of 41° at 14:02 missed the record high of 71° set in 2013 by 30 degrees for Relay Weather Station
Todays low of 30° at 00:25 missed the record low of 5° set in 1942 by 25 degrees for Relay Weather Station
Today in Weather History

Weather History for December 21
 
1989
Forty cities in the north central U.S., including thirteen in Iowa, reported record low temperatures for the date. Havre and Jordan, MT, tied for honors as the cold spot in the nation with morning lows of 43 degrees below zero, and the temperature remained close to 40 degrees below zero through the daylight hours. Dickinson ND reported a morning low of 33 degrees below zero and a wind chill reading of 86 degrees below zero. The high for the date of 16 degrees below zero at Sioux Falls SD was December record for that location. (The National Weather Summary)

1998
Cold air spread into the southern San Joaquin Valley of California. For the next four nights, temperatures in the agricultural portions of Fresno, Tulare, and Kern counties dropped below 28 degrees for several hours at a time. In some locations, temperatures dipped into the teens. The California citrus industry suffered more than $600 million in damages due to the extreme cold.

 
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