RADAR: - North Texas RADAR (incl. TV station radars) - USA WSR-88Ds via RAP/UCAR - USA WeatherMatrix: TV Radars - Mexican Weather Radars - International Weather Radar Links Satellite/surface obs & analysis: - North Texas specific - Nationwide Satellite:     1. Vis and IR www.rap.ucar.edu    2. Vis wwwghcc.msfc.nasa.gov    3. IR wwwghcc.msfc.nasa.gov - Nationwide Surface    1. www.rap.ucar.edu    2. CAPS/wx Univ. of OK    3. CAPS S. Plains Meso KS OK TX Storm Prediction Center products: (spc.noaa.gov/products)    1. Convective Outlooks  (1, 2 & 3 days ahead)    2. Mesoscale Discussions (realtime discussions)    3. Current Watches - National Huricane Center (nhc.noaa.gov) -  Severe Wx Map Unisys(formerly "Purdue Wx Processor")  Sat/Surf Map Frontal map Dewpoint Contour Surface Wind Speeds Pressure Contour Temp Contour Surface Contour Plots Moisture Converg.Contour Surface Wx Depict Wx Map Symbols Space Wx NOAA Space Environ Center SEC Current Advisories SEC Educational Papers IPS Real-Time Status Panel Misc NWS Bulletins page National Severe Storms Laboratory (nssl.noaa.gov)     Software Experimental Weather Radar Browser

--- Unisys Satellite/Radar Wx summary --- --- Current Unisys Wx summary --- IPS  HF Comm. Warning: IPSGeomagnetic Warning:  IPS  Current HF Fadeout:    IPS  HF Fadeout Warning:  --- Space Weather --

This page contains links to both graphical and textual wx info. A good overall graphical depiction of US surface weather may be seen at Unisys Weather's large Satellite and Surface Map.  There is also the map of Surface observations which differs from the Satellite and Surface Map in that there is no overlay of satellite imagery indicating cloud mass.
 

In the textual information category the NWS Bulletins describe the Current Watches and Warnings. More information in graphical form in various categories can be had at Unisys Weather (formerly Purdue's Wx Processor) but this site can take a little more experience to navigate.

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Weather links

• All Severe Weather depicted graphically on a US map.
•  Wx Analysis Page Links to Surface Observations, upper level winds and a high-res Satellite imagery site.
•  RADAR Links including Intellicast NEXRAD Products *and* local TV CH 8 "Storm Track Live" Radar.

• "Earthwatch" Forecast (select a category next to the map)
• Dallas/Fort Worth "WeatherLabs" Forecast
• Tom Skilling's Forescast page from WGN TV-9 in Chicago. Tom has some good graphics and shows why we've got the arctic outbreak taking place.
• Explanation of Wx symbols found on surface plot maps ** Note: This URL isn't working !!

Textual National Wx Service stuff

• Bulletins: Watch, Warning and Damage these are (almost!) better than real time ...
• State of Texas forecsast, current observations (NWS)
• Pick a state for the NWS's take on forecsast and current observations
• Earth Watch site a variety of Wx products

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Misc. Wx stuff

• EMWIN: NWS's New Warning and information broadcast service called "Emergency Managers Weather Information Network"

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Special Wx Events

Storm report: National WX Service summary of Monday's (10-21-96) storm
Texas Rain Wx event: Images (Radar/surface maps) of Sunday's (10-27-96) Wx
A really low pressure (982 mB) center north of Lake Superior 10-30-96 low press cent N. of Lk Sup.

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Have you ever wondered what the mathematical method was for determining the length of a day? Well here is a mathematical formula to determine day length given date and latitude. This is Courtesy of M. Williams from newsgroup: sci.geo.meterology

Day_length = 24 * (w/Pi)    Comment: This will yield   Day_length   in hours.

where w is the sunset hour angle, given by:

w = arccos( -tan(phi) * tan(delta) )

where phi is the latitude, and delta is the solar declination, given by:

delta = 0.409*sin( (2*Pi/365) * J - 1.405 )

where J is the Julian day.

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