Chris Slocum

Colorado State University


Products and Tools

This page contains a list of meteorological products I have created and maintain as well as various tools. These products are intended for educational purposes only.


Northern Colorado NEXRAD Loop
The latest base reflectivity for KCYS.

The Northern Colorado NEXRAD Loop displays the last 25 scans made by the WSR-88D in Cheyenne, WY which covers Northern Colorado.

Currently, Level-III base reflectivity (0.5 deg) is the only data being processed from the NWS FTP server. Eventually, radial velocity and hydrometer classification will be included.

Northern Colorado NEXRAD Loop ›


Northern Colorado National Digital Forecast Database plot page
Current NWS NDFD forecast of accumulated snow for Northern Colorado.

The Northern Colorado National Digital Forecast Database plot page displays the last NWS service forecast in the NDFD.

Currently, Level-III base reflectivity (0.5 deg) is the only data being processed from the NWS FTP server. Eventually, radial velocity and hydrometer classification will be included.

Northern Colorado NDFD Plot Page ›


Global Tropics GFS Output Loop
The analysis from the current GFS model run.

Global Tropics GFS Output Loop displays output from the latest GFS model run over the tropics and subtropics using a Miller Cylindrical Projection. Included in the figure are variables that are potentially useful in forecasting tropical activity.

The top panel shows Total Precipitable Water (mm), Mean Sea Level Pressure (hPa), 10 m wind (kt). The lower panel shows Relative Vorticity (105 s-1) on the 850 hPa surface, Geopotential Height of the 500 hPa surface, Wind (kt) on the 250 hPa surface, and the 26 and 28.5 °C isotherms of Sea Surface Temperature.

Please note: This page is intended to be viewed on the high resolution monitors available in the Weather Lab of the CSU Dept. of Atmospheric Sciences.

Global Tropics GFS Output Loop ›


Today in Tropical Cyclone History

This product is in the final stages of development and testing and will appear on this site shortly.

Today in Tropical Cyclone History plots the best tracks of tropical cyclones in the North Atlantic, East Pacific, Centeral Pacific, and South Atlantic that existed on this day from 1850 to the present.

The track of current storms is shaded based on intensity. All other storms are in a shape of gray corresponding to the decade. Information about the storms' intensity, critical radii and domain are availble in a table below the figure.

Today in Tropical Cyclone History is is the by-product of a database I created to manage the decks from the National Hurricane Center and Joint Typhoon Warning Center.


Multiple Linear Regression - MOS Techniques

This online tool teaches students about statistical techniques for forecasting meteorological quantities like high temperature. Students develop multiple linear regression equations for predictors such as 850 mb temperature, specific humidity, 200 mb winds, etc using data from NARR (North American Regional Reanalysis) then take operational values from the GFS (Global Forecast System) and NAM (North American Model) to predict the 18z temperature.

This tool has been developed in collaboration with the Pennsylvania Climate Office for Penn State's forecasting course (Meteo 415). Currently, the multiple linear regression tool is only accessible from a psu.edu or colostate.edu domain.

Since access to this tool is limited, please feel free to contact me for more information.

Multiple Linear Regression ›


Nittany Weather
A screen capture from an early version of the page.

The Nittany Weather Data Page gathers information from around the web to aid in point forecasts. The page should give the user an easier format to explore and compare various data sources without wasting time trawling the internet. The project is currently hosted on Google's App Engine service.

The Nittany Weather Data Page ›