Drought Information Statement
Issued by NWS Des Moines, IA

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Drought Information Statement
National Weather Service Des Moines IA
452 PM CDT Thu Sep 14 2017

...Extreme Drought Conditions Remain, Abnormally Dry Conditions
Expand...

.SYNOPSIS...

Significant precipitation deficits remain over a large portions of
southern Iowa, where the severe and extreme drought conditions
exist. With hefty rainfalls well in the rear view mirror at this
point, no areas saw improvement and many areas saw expansion or
category increases. Eastern Iowa saw the greatest expansion with
nearly all areas at least in the abnormally dry category now. A small
area of severe drought conditions also crept into far northeast
Iowa.

.SUMMARY OF IMPACTS...

As of mid-August, extreme drought conditions were introduced to
parts of south central and southeast Iowa and continue currently.
This includes the Highway 34 corridor in areas near Ottumwa,
Chariton, and Osceola. Moderate drought continues in large swath
south of Interstate 80 from roughly Creston on east towards the
Mississippi River. Agriculture in southern Iowa had already thrown in
the towel and harvested for silage back in August in many cases,
while other areas remained moderately to significantly stressed with
regards to corn and soybean fields.

Currently, only 1 Iowa county remains under an open burn ban, Monroe.

Soil moisture continues to be of concern in southern Iowa, where
parts of the extreme drought area have returned to percentiles under
20 percent. Should dry conditions continue, soil moisture concerns
and percentiles under 20 percent will likely expand significantly
into parts of central and eastern Iowa, which will in turn raise
concerns for the next planting season.

.PRECIPITATION/TEMPERATURE OUTLOOK...

Temperatures through the remainder of August lean strongly towards
above normal temperatures, while a switch to below normal is favored
come September. Through the remainder of fall and into early winter,
a slight favor to above normal temperatures returns.

Precipitation wise, the short term outlook has glimmers of hope with
a nod towards above normal precipitation with a more active pattern
looking to emerge. However, looking into September and then through
the rest of fall, below normal precipitation to near normal
precipitation dominates the outlook. Should even normal or a bit
above normal precipitation prevail, it will be hard to dent some of
the precipitation deficits with normal precipitation values in the
fall trailing off from summer peaks.

.HYDROLOGIC SUMMARY AND OUTLOOK...

The Chariton River Basin lies within the extreme drought area. All
river gauge sites within this basin continue to run well below
normal for stream flow levels, according to the USGS as of mid-
September. While mid-August rainfalls allowed stream flow levels to
rise above the 25th percentile, flows once again dropped toward the
10th percentile of late.

.NEXT ISSUANCE DATE...

This product will be updated at the end of September, or as
necessary.


&&

.Related websites...

Local weather...climate and water information -
   http://weather.gov/desmoines

Drought Monitor and information -
   http://droughtmonitor.unl.edu
   http://www.cpc.ncept.noaa.gov/products/Drought/

Iowa State University Cooperative Extension Service -
   http://www.extension.iastate.edu/topic/recovering-disasters

Iowa Environmental Mesonet -
   http://mesonet.agron.iastate.edu

Additional River Information -
   USGS - http://water.usgs.gov
   COE  - http://www.mvr.usace.army.mil

Climate Prediction Center -
   http://www.cpc.ncep.noaa.gov

.ACKNOWLEDGEMENTS...

.QUESTIONS AND COMMENTS...

If you have any questions or comments about this drought information
please contact:

   Craig Cogil
   Climate Services focal point
   National Weather Service
   Johnston...IA 50131
 email: craig.cogil@noaa.gov

$$

CURTIS



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