Drought Information Statement
Issued by NWS St. Louis, MO

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Drought Information Statement
National Weather Service Saint Louis MO
358 PM CST Thu Jan 18 2018

...Severe drought conditions continue 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 up to 2 inches are common over the
severe drought areas.

SUMMARY OF IMPACTS...

Precipitation deficits of 8 to 10 inches since the middle of
September have resulted in several impacts across the area. Area
streamflows are also quite low for this time of year with many
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 14 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 above normal precipitation and temperatures.

In the week 2 timeframe, the CPC continues to favor both above
normal precipitation and temperatures across the mid-Mississippi
Valley.

HYDROLOGIC SUMMARY AND OUTLOOK...

Streams across Missouri and Illinois continue showing signs of
severe drought, though there has been modest improvement along some
streams.  In the St. Louis service area, 7-day average flows along
gaged streams on the Black, the Bourbeuse and the Kaskaskia rivers
along with Hinkson Creek have improved to flows above the 10th
percentile of all historical flows.  However, the Elk Fork Salt
River, South Fabius River, and Hickory Creek all fell below the 10th
percentile of historical flows.  The driest streams with flows at or
below the 5th percentile included Hickory Creek in Illinois and the
South Fabius,  the South Fork Salt, the upper Big, and the upper St.
Francis Rivers in Missouri.  Due to the recent cold air outbreak,
numerous smaller streams have frozen, with flow data unavailable.

Meanwhile, flows remain near but below normal along the major
rivers. The Missouri, Mississippi, and Illinois rivers all have
flows between the 25th and 50th percentiles 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 February 15, 2018.

&&

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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