<p>This might be product specific, but if it's anything like my MODIS experience this refers to <strong>s</strong>tart and <strong>e</strong>nd latitude and longitude. Are you looking at a small region on the Mississippi/Louisiana border?</p>

CC BY-SA 4.0
2019-09-12T15:09:14.913Z
Thanks, you posted right after I did.  I appreciate your help.
raddevus
CC BY-SA 4.0
2019-09-12T15:07:12.343Z
2019-09-12T15:07:12.343Z
Deditos
<p>Oh, I think I finally figured out what those values are.</p>

<p>The data is tornado data and I believe the slat, slon are <strong>Start</strong> locations (of the tornado) and the elat, elon are <strong>End</strong> locations for the tornado.</p>

<p>This only became apparent when I added those locations to a Google map and saw the distances.</p>

<p>Here is a <a href="https://www.google.com/maps/dir/&#39;31.6671,-90.9352&#39;/31.699799985277465,+-90.8813000175732/@31.6813792,-90.9501063,13z/data=!3m1!4b1!4m9!4m8!1m3!2m2!1d-90.9352!2d31.6671!1m3!2m2!1d-90.8813!2d31.6998" rel="nofollow noreferrer">map with the two locations</a> on it (obviously the path is a driving path and not path of tornado, but it shows the distance).</p>

CC BY-SA 4.0
2019-09-12T15:05:49.173Z
2019-09-12T15:05:49.173Z
raddevus
<p>I have data from the national <a href="https://www.spc.noaa.gov/wcm/index.html" rel="nofollow noreferrer">storm prediction center</a> that is marked with values of :
elat 
slat
elon
slon</p>

<pre><code>`slat        slon        elat        elon
`31.6671    -90.9352    31.6998     -90.8813
</code></pre>

<p>What do those values mean?<br>
What does the "s" &amp; "e" prefix stand for?</p>

<models>
What does slat and elat (slon, elon) in latitude and longitude values mean?
raddevus
# What does slat and elat (slon, elon) in latitude and longitude values mean?

(Asked by: username_0 on 2019-09-12)

I have data from the national [storm prediction center](https://www.spc.noaa.gov/wcm/index.html) that is marked with values of :
elat
slat
elon
slon

```
`slat        slon        elat        elon
`31.6671    -90.9352    31.6998     -90.8813

```

What do those values mean?  
What does the "s" & "e" prefix stand for?

**Tags:** models


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## 2 answers

### Answer by username_1 on 2019-09-12. Score: 4

This might be product specific, but if it's anything like my MODIS experience this refers to **s**tart and **e**nd latitude and longitude. Are you looking at a small region on the Mississippi/Louisiana border?

> **Comments:**
> **username_0**: Thanks, you posted right after I did.  I appreciate your help.  

---

### Answer by username_0 on 2019-09-12. Score: 1

Oh, I think I finally figured out what those values are.

The data is tornado data and I believe the slat, slon are **Start** locations (of the tornado) and the elat, elon are **End** locations for the tornado.

This only became apparent when I added those locations to a Google map and saw the distances.

Here is a [map with the two locations](https://www.google.com/maps/dir/'31.6671,-90.9352'/31.699799985277465,+-90.8813000175732/@31.6813792,-90.9501063,13z/data=!3m1!4b1!4m9!4m8!1m3!2m2!1d-90.9352!2d31.6671!1m3!2m2!1d-90.8813!2d31.6998) on it (obviously the path is a driving path and not path of tornado, but it shows the distance).


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