Ticker for September 30, 1998

                
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September 30, 1998 September 30, 1998 September 30, 1998 September 30, 1998


Soil Temperature Making Late-Season Run

Mesonet soil temperatures have risen considerably in response to the
warm days of the last week.

The following values represent statewide 24-hour average Mesonet soil
temperatures for each Mesonet soil temperature group.

It's interesting to note that the largest responses come from
the parameters nearest the surface, and from the bare soil plots.

These numbers illustrate how deeper/insulated soil layers typically have
more "memory" of the past than shallower/bare layers.


Mesonet Soil                      Sep 22       Sep 29
Parameter                         Avg Temp     Avg Temp    Change

5 cm (~2")  below Native Sod     75.7 F       80.0 F      + 4.3 F
5 cm (~2")  below Bare Soil      73.2 F       83.6 F      +10.4 F
10 cm (~4")  below Native Sod     76.3 F       79.0 F      + 2.7 F
10 cm (~4")  below Bare Soil      75.1 F       82.4 F      + 7.3 F
30 cm (~12") below Native Sod     78.2 F       78.4 F      + 0.2 F


One-day, three-day and seven-day average soil temperatures are available
via the Oklahoma AgWeather Home Page at:

http://agweather.mesonet.org/agwx.html


Tomorrow on the Ticker

October 1st is the "Hydrologist's New Year", so the Ticker will recap the
water year which ends tonight at midnight.

Also, preliminary September temperatures will be compared to historical
values.