Load Data
Instructions
This app can load soundings from text files obtained from the University of Wyoming Upper Air Data website.
1. Go to the sounding website: http://weather.uwyo.edu/upperair/sounding.html
2. Choose options from the drop-down lists at the top, as follows:
á Region: Your choice
á Type of plot: choose ÒText: ListÓ
á Year: Your choice
á Month: Your choice
á From/To: Your choice, but ÒFromÓ and ÒToÓ must be the same.
á Station Number: Selected when you click on the map
3. Click on a location on the selected regional map. A text file will open in a new window or tab. It will look something like this:
71934 YSM Fort Smith
Observations at 12Z 18 Apr 2013
-----------------------------------------------------------------------------
PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV
hPa m C C % g/kg deg knot K K K
-----------------------------------------------------------------------------
1001.0 203 -8.1 -14.1 62 1.29 20 2 265.0 268.6 265.2
1000.0 213 -8.1 -17.1 48 1.01 50 7 265.1 267.9 265.2
988.2 305 -8.8 -16.5 53 1.07 80 17 265.3 268.4 265.5
971.0 441 -9.7 -15.7 62 1.17 93 21 265.7 269.0 265.9
962.0 513 -9.1 -16.1 57 1.14 100 22 267.0 270.2 267.2
.
.
.
7.9 31880 -41.7 -77.7 1 0.12 259 55 922.9 924.5 922.9
7.4 32309 -38.2 -75.7 1 0.18 270 62 953.8 956.2 953.9
7.1 32614 -35.7 -74.3 1 0.23 265 48 976.2 979.4 976.4
7.0 32710 -34.9 -73.9 1 0.25 255 52 983.4 986.9 983.5
6.8 32913 -34.1 -73.1 1 0.29
994.9 999.0 995.1
Station information and
sounding indices
Station
identifier: YSM
Station number: 71934
Observation time: 130418/1200
.
.
.
1000 hPa to 500 hPa thickness: 5157.00
Precipitable water [mm] for entire sounding: 4.89
Description
of the data columns or sounding
indices.
4. Save the page as a text file in the same directory as the file Òskewt_v15.swfÓ (very important).
a. Firefox: Either CTRL-S or File>Save Page AsÉCreate a sounding name with .txt suffix (for example, oak.txt) ÉSave.
b. Internet Explorer: similar to above.
c. Google Chrome: similar to above
5. Edit the text file to:
a. remove all the lines at the top of the file before the first dashed ( Ò-----Ò ) line
b. remove all blank lines between the end of the data and the ÒStation information and sounding indicesÓ line.
The file will now look like this:
-----------------------------------------------------------------------------
PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV
hPa m C C % g/kg deg knot K K K
-----------------------------------------------------------------------------
1001.0 203 -8.1 -14.1 62 1.29 20 2 265.0 268.6 265.2
1000.0 213 -8.1 -17.1 48 1.01 50 7 265.1 267.9 265.2
988.2 305 -8.8 -16.5 53 1.07 80 17 265.3 268.4 265.5
971.0 441 -9.7 -15.7 62 1.17 93 21 265.7 269.0 265.9
962.0 513 -9.1 -16.1 57 1.14 100 22 267.0 270.2 267.2
.
.
.
7.9 31880 -41.7 -77.7 1 0.12 259 55 922.9 924.5 922.9
7.4 32309 -38.2 -75.7 1 0.18 270 62 953.8 956.2 953.9
7.1 32614 -35.7 -74.3 1 0.23 265 48 976.2 979.4 976.4
7.0 32710 -34.9 -73.9 1 0.25 255 52 983.4 986.9 983.5
6.8 32913 -34.1 -73.1 1 0.29
994.9 999.0 995.1
Station information and sounding
indices
Station identifier: YSM
Station number: 71934
Observation time: 130418/1200
.
.
.
1000 hPa to 500 hPa thickness: 5157.00
Precipitable water [mm] for entire sounding: 4.89
Description
of the data columns or sounding
indices.
6. In the interactive Skew-T,
a. click ÒLoad DataÓ
b. enter the filename of the sounding text file (i.e., oak.txt)
c. click ÒApplyÓ