UMBC Weather Page (21250 Baltimore, MD)

Temp: 65.9°F Humidity: 91.1% Pressure: 30.06 inHg PM2.5: NA AQI Ozone: NA AQI Kp: 1 Wind: 2.4 mph WSW
Sun Rise / Set: 5:48:53 / 20:17:54 Moon Phase: Waxing Gibbous Want to study the physics of weather? Come to UMBC and join our Atmospheric Physics program!
NOAA Forecast (Updated Today at 7:30) Hourly	(click on image to animate, and again to zoom)
Today: Patchy fog this morning. Cloudy with isolated showers this morning. . . Then partly sunny with scattered showers and thunderstorms this afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 40 percent.
Tonight: Mostly cloudy. A chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 30 percent.
Tuesday: Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
Tuesday Night: Mostly cloudy. Lows in the upper 60s. South winds 5 to 10 mph.
Units: Metric or English

Measurement	Metric	English
Temperature	18.9°C +0.24°C	65.9°F +0.44°F
Pressure	101.79kPa +0.03kPa	30.06inHg +0.01kPa
Humidity	91.14% -1.90%
Solar	11%
Rain	0.00cm	0.00in
Current Conditions
Wind Speed	2.46kph SW	1.53mph SW
Avg Wind Speed	3.88kph WSW	2.41mph WSW
Gust Wind Speed	15.51kph W	9.64mph W
Ozone	NA AQI^* -
PM 2.5	NA AQI^* -

^*AQI Unit - The AQI unit is a set of linear fits for a given concentration to the Air Quality Indicator standard. These values may be changed in the future, so it's best to use EPA's current standards.
To convert back to the concentration use the following: AQI to concentration, Concentration to AQI

LWX Radar (animated)

MD Traffic

Lightning DCLMA

LocalTime = UTC - 4:00

Lightning WWLLN

LocalTime = UTC - 4:00

GOES Imagery

LocalTime = UTC - 4:00

MODIS Imagery

Current Meteorology

US Pressure Systems

observation key

Satellite version

Radar version

Ozone - Current AQI

Particles (PM2.5) - Current AQI

Today's sounding

Suominet

AERONET - GSFC

AERONET - MD Science Center

NOAA 7 Day Forecast
Updated Mon, 20 May 2013 07:30:00 -0400.

	Today:	Patchy fog this morning. Cloudy with isolated showers this morning. . . Then partly sunny with scattered showers and thunderstorms this afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 40 percent.
	Tonight:	Mostly cloudy. A chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 30 percent.
	Tuesday:	Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
	Tuesday Night:	Mostly cloudy. Lows in the upper 60s. South winds 5 to 10 mph.
	Wednesday:	Partly sunny in the morning. . . Then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.
	Wednesday Night:	Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 40 percent.
	Thursday:	Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 50 percent.
	Thursday Night:	Mostly cloudy with a 50 percent chance of showers. Lows in the mid 60s.
	Friday:	Partly sunny with a chance of showers and thunderstorms. Highs in the lower 70s. Chance of rain 50 percent.
	Friday Night:	Mostly clear. Lows in the mid 50s.
	Saturday:	Sunny. Highs around 70.
	Saturday Night:	Partly cloudy. Lows in the lower 50s.
	Sunday:	Partly sunny. Highs in the lower 70s.

Tabular Forecast


Fe IX/X 171 Å	Fe XII 195 Å	Fe XV 284 Å	He II/Si XI 304 Å
full-res, animate	full-res, animate	full-res, animate	full-res, animate

BETA - Kp Index

Sky chart

via: Heavens-Above

Total Electron Content

What is CCD-Bakeout?
Astronomical Data online (U.S. Naval Observatory)

Max/Min Temperature Files
Data Files (every 1-5 min)
Hourly Average Files
Daily Average Files
Data Plots (hourly avg)
UMBC Webcam

All Sky Camera archive	ALG Camera archive	LIB Camera archive

Sorry you must have the Java plugin and Java installed to view this page.
Switch to units: Metric or English.
More Java Applets

About this web page
This page was conceptualized and assembled in the Summer and Fall of 2006. The final appearance as one sees now was implemented in September of 2006. The data provided here has either been recorded by our own weather station at UMBC or cached directly from official sources (listed below).

Thanks to the many people who make this page possible:
- Tony Salemi - Codes and maintains the data systems used for the weather information, graphs, and archives.
- Tim Milligan - Designs the graphics and layout of this website.
- Steven Buczkowski - Designs and maintains the space weather portion of the website.
- Paul Schou - Codes the web portion of this site, and manages data streams.
- Dr. Ray Hoff - Advisor who oversees the running of this site
- Dr. Wallace McMillan - Provided the needed resources to make the weather information live

All data used here has been acquired by permission from their rightful owner. Data sources used to generate this page include:
- NOAA Zoned forecast model
- NOAA KBWI current conditions xml feed to give the overall observations in the area.
- NOAA live radar imagery
- AirNOW Ozone and PM2.5 readouts for air quality.

The weather station is located on the campus of UMBC which is just north of Catonsville and helps service weather for Baltimore, Maryland, weather for 21250, Greater Baltimore, MD area, weather for 21228, Catonsville, MD, weather for 21227, Arbutus, MD, and Charm City Weather. Other links to this website include: Baltimore Weather and gsfc weather. Another random link Tour UMBC.