Ten-Day Concatenated NWAC Telemetry
(page created February 2006, last updated December 2013)
See the Historical NWAC Climatological Snowdepth Data & Plots page
for custom plots and data back to the 1916-17 season.
See the main Cascade Snowfall and Snowdepth page, plus
Snow Season Reports: 2005-2006, 2004-2005,
See also Previous Seasons, Normals & Info,
Cascades El Niño / La Niña, and
Paradise & Crater Lake Snowfall/Snowdepth Plots
This page concatenates and prints telemetry data for the last 10 days for any
Northwest Weather and Avalanche Center (NWAC) telemetry site. The current data
is printed first with full headers, followed by the archived data for each of the past 10 days ending at 4AM (headers printed only
for the first day), with the current data also appended to the end. Alternately, the data can be shown in reverse chronological
order, which seems to be preferred by most people.
As of November 2009, a version of this 10-day concatenation script has been added to the telemetry display on the NWAC website.
Unfortunately, archived telemetry data older than 10 days is not yet available online from NWAC as of fall 2013.
I've also written a more flexible viewer script for NWAC telemetry which uses this code, and has numerous options for concatenating
all sites, or displaying 2 sites side-by-side for comparison: CascadeSnowNWAC-Data.php
|Program Version History
||03 Feb 2006||
||First online release. Simple data scraping and concatenation in about 15 lines of PHP code.
|1.1||04 Feb 2006
||Inline frame now scales to browser width. Current data now placed both first and last.
Added links to display the past 10 days of mountain weather and avy forecasts.
|1.2||07 Feb 2006
||Added option for reverse chronological order (which more than doubles the amount of PHP code).
|1.3||01 Nov 2009
||New NWAC website of October 2009 broke this page, since all URLs there were changed.
Updated to change data directory URL from http://www.nwac.us/products/ to
Also wrote a new PHP script to grab data from the new website, with several display options.
This can be found at: CascadeSnowNWAC-Data.php
|1.4||05 Dec 2012
||Updated the list of NWAC websites to add Berne Maintenance Station, Blewett Pass, and Top of Cascade Express at Mt Hood Meadows
|1.5||10 Dec 2013
||Detect and mark missing data, including the number of missing hours
|1.6||14 Dec 2013
||Remove blank left margin completely, and set correct number of missing hours in most recent day's data
Data on this page provided by
Northwest Weather and Avalanche Center.