Drought Information Statement
Issued by NWS St. Louis, MO

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Drought Information Statement
National Weather Service Saint Louis MO
816 AM CST Thu Dec 14 2017

...Severe drought conditions expand across portions of east-
central and southeastern Missouri...

SYNOPSIS...

Drier than normal conditions have largely persisted since
mid/late summer over much of the area. Over the past month,
precipitation deficits of 3 to 4 inches are common over the severe
drought areas.

SUMMARY OF IMPACTS...

Precipitation deficits of 6 to 10 inches since the middle of
September have resulted in several impacts across the area. Area
streamflows are also low for this time of year with man
streamflows across the area below the 25th percentile and some
below the 10th percentile. Please see the hydrological section
below for more details on area streamflows. Many area ponds are
also very low. This is causing some producers to move cattle or
haul water.

CLIMATE SUMMARY...

Abnormally dry weather has persisted roughly since the the middle
of summer. Precipitation deficits for this time period are on the
order of 8 to 12 inches across the area, with the highest
deficits across portions of east-central and southeastern
Missouri.

PRECIPITATION/TEMPERATURE OUTLOOK...

The outlook from the Climate Prediction Center (CPC) for the next
6-10 days favors below normal precipitation.

In the week 2 timeframe, the CPC also favors above normal
precipitation across the mid-Mississippi Valley.

HYDROLOGIC SUMMARY AND OUTLOOK...

Streams across Missouri and Illinois are showing signs of severe
drought.  In Missouri, 7-day average flows along gaged streams on
the Gasconade, the South Fork Salt, the Black, the Big, the
Bourbeuse, the Meramec, and the Kaskaskia rivers along with Hinkson
Creek and East Fork Shoal Creek have fallen to below the 10th
percentile of all flows averaged over the same 7-day period at those
gages.  The driest tributaries appear to be in the Meramec basin in
southeastern Missouri, while streams in northeastern Missouri are
closer to seasonal norms.

Meanwhile, low flows do not appear problematic along major rivers.
The Missouri, Mississippi, and Illinois rivers all have flows above
the 25th percentile of historical flows, and this is considered
normal for this time of year.

NEXT ISSUANCE DATE...

The next drought information statement is scheduled to be issued
by Thursday January 11, 2017.

&&

RELATED WEB SITES...

LOCAL WEATHER, CLIMATE, AND WATER INFORMATION:
http://www.weather.gov/saintlouis

MIDWEST CLIMATE CENTER DROUGHT INFORMATION PAGE:
http://mcc.sws.uiuc.edu/cliwatch/drought/drought.jsp

MISSOURI STATE CLIMATOLOGIST:
http://climate.missouri.edu
MISSOURI DNR DROUGHT PAGE:
http://www.dnr.mo.gov/env/wrc/droughtupdate.htm

ILLINOIS STATE CLIMATOLOGIST:
http://www.isws.illinois.edu/atmos/statecli
ILLINOIS WATER SURVEY DROUGHT PAGE:
http://www.isws.illinois.edu/hilites/drought/

U.S. DROUGHT MONITOR:
http://droughtmonitor.unl.edu/

U.S. DROUGHT PORTAL:
http://www.drought.gov

ADDITIONAL WATER INFORMATION:
NATIONAL WEATHER SERVICE ADVANCED HYDROLOGICAL PREDICTION
SERVICE (AHPS):  http://water.weather.gov
U.S. GEOLOGICAL SURVEY:  http://water.usgs.gov
ARMY CORPS OF ENGINEERS:  http://www.nwo.usace.army.mil/

CLIMATE PREDICTION CENTER:
http://www.cpc.ncep.noaa.gov/

ACKNOWLEDGMENTS...

The U.S. Drought Monitor is a weekly collaborative effort between
a number of state and federal agencies including the National
Weather Service, the U.S. Department of Agriculture, and the
National Drought Mitigation Center.

QUESTIONS OR COMMENTS...

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

Mark Britt or
Jayson Gosselin
Climate Services Focal Points
--or--
Mark Fuchs
Senior Service Hydrologist

National Weather Service Saint Louis Missouri
636-441-8467
w-lsx.webmaster@noaa.gov

$$

Gosselin



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