Drought Information Statement
Issued by NWS Brownsville, TX

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000
AXUS74 KBRO 211507
DGTBRO

TXC047-061-215-247-261-427-489-505-231500
Drought Information Statement
National Weather Service Brownsville TX
910 AM CST Thu Dec 21 2017

...Drought conditions have ended over Jim Hogg County...
...Drought conditions expected to develop across western portions of
deep South Texas later this winter into spring...

.SYNOPSIS...

Rainfall was above normal across western portions Hidalgo
county...as well as across extreme northeast portions of Starr
county and extreme southeast portions of Jim Hogg county for the
month of November. Rainfall was near normal to below normal across
the rest of deep South Texas for the month of November. During the
last 90 days...deep South Texas has received anywhere from 50 to 100
percent of their normal rainfall except across most of
Hidalgo...Brooks and Zapata counties as well as western portions of
Kenedy county...where 100 to 200 percent of normal rainfall fell.

According to the latest United States Drought Monitor...recent rains
have brought an end to drought conditions across the area.

SUMMARY OF IMPACTS...

FIRE DANGER IMPACTS.

According to the National Interagency Fire Center, the potential for
significant wildland fires is normal.  The latest Fire Danger Map
from the Texas Inter-Agency Coordination Center (TICC) on December
19th indicates a low fire danger over the area. The latest Keetch-
Byram Drought Indices (KBDI) were 300 to 400 over most of deep South
Texas except for Cameron...Willacy and Starr counties where indices
were 400 to 500. County burn bans are currently in effect for
Zapata, Jim Hogg, Brooks, Starr and Willacy counties. Residents are
urged to take extra precautions when conducting any outside burning,
and should contact county officials for any scheduled burning.
Residents are also reminded that fire danger can change quickly from
one day to another as winds and relative humidity values vary.

AGRICULTURAL IMPACTS.

According to the United States Department of Agriculture and Texas
Agrilife Extension Service Agents...pasture and rangeland conditions
were fair to good but were declining as summer perennial grasses
began to go dormant. Body condition scores on cattle remained good.
Some areas reported steady supplemental feeding of livestock. Fall
vegetable crops in Starr county progressed well. In Hidalgo
county...harvests of sugarcane, citrus and vegetables continued. Row
crop field work continued as well.

WATER RESTRICTIONS.

According to the Texas Commission of Environmental Quality
(TCEQ)...there are currently 31 cities or water supply entities that
are under voluntary or mandatory water restrictions. There are 7
Public Water Supply entities in Cameron county, 13 in Hidalgo
county, 6 in Starr county, 3 in Zapata county and 2 in Willacy
county. All water users are urged to conserve water.

CLIMATE SUMMARY...

Overall, November 2017 brought above normal temperatures across most
of deep South Texas and above normal rainfall across western
portions Hidalgo county...as well as across extreme northeast
portions of Starr county and extreme southeast portions of Jim Hogg.
Below normal to near normal rainfall has fallen across the remainder
of deep South Texas for November 2017.

Current rainfall to date for the month of December at Brownsville is
0.87 inches or 0.09 inches above normal. Year to date rainfall is
22.59 inches or 4.48 inches below normal.

Current rainfall to date for the month of December at Harlingen is
0.92 inches or 0.06 inches below normal. Year to date rainfall is
19.25 inches or 5.65 inches below normal.

Current rainfall to date for the month of December at McAllen is
1.05 inches or 0.31 inches above normal. Year to date rainfall is
19.57 inches or 2.18 inches below normal.

PRECIPITATION/TEMPERATURE OUTLOOK...

Meteorological outlook...December 22nd through December 28th...An
upper level trough of low pressure across the southwest United
States on the 22nd will bring a cold front through South Texas on
the 23rd providing showers across deep South Texas. A strong area of
high pressure will build into South Texas on the 24th and move
eastward on the 25th. A weak coastal trough on the 25th will provide
a slight chance of rain across the lower Texas coast the 25th and
26th. Another cold front will move through South Texas on the 28th
providing a chance of rain across most of deep South Texas.
Temperatures will be above normal the 22nd and below normal the 23rd
through the 25th. Temperatures will return to near normal on the
26th and continue through the 27th before becoming below normal on
the 28th. Overall average temperatures will be near normal from
December 26th through December 30th.

Rainfall totals will generally be a hundredth of an inch to a tenth
of an inch...mainly across the coastal sections of deep South
Texas...through December 28th. Overall average rainfall will be
above normal from December 26th through December 30th.

The long range climate outlook for deep South Texas through February
2018...derived from guidance from the National Weather Service and
the Climate Prediction Center...indicates that generally above
normal temperatures and below normal rainfall will be expected for
deep South Texas through the Winter of 2018. The latest United
States seasonal drought outlook indicates that drought development
is likely across the western portions of deep South Texas through
the rest of the Winter into early Spring 2018.

HYDROLOGIC SUMMARY AND OUTLOOK...

According to the Texas Water Development Board (TDWB)...the current
Texas water share at Falcon Reservoir has increased slightly during
the past four weeks to 54.0 percent. This is an increase from a
previous level of 27.1 percent three months ago. The Texas water
share at Falcon at this time last year was at 38.4 percent. The
current Texas water share at Amistad Reservoir has increased
slightly during the past four weeks to 75.9 percent. This is a
slight increase from a previous level of 75.4 percent three months
ago. The Texas water share at Amistad at this time last year was at
84.0 percent. The reservoirs at Falcon and Amistad provide much of
the water for the Rio Grande valley. Residents, including growers
and ranchers of the lower Rio Grande valley, are urged to take all
necessary steps to conserve water.

NEXT ISSUANCE DATE...

Since drought conditions have ended over deep South Texas...this
will be the last Drought Information Statement for this event. The
next Drought Information Statement will be issued when significant
drought conditions return to deep South Texas.

RELATED WEB SITES...

For additional information...and the latest weather forecast for
deep South Texas...visit our website at www.weather.gov/rgv. You may
also visit the National Weather Service Climate Prediction Center
website at www.cpc.ncep.noaa.gov and get the latest information on
reservoir levels from the International Boundary and Water
Commission (IBWC) at www.ibwc.gov.

Additional web sites:

NWS BROWNSVILLE DROUGHT PAGE:
http://www.weather.gov/bro/drought

NWS BROWNSVILLE Advanced Hydrologic Prediction Service (AHPS):
http://water.weather.gov/ahps2/index.php?wfo=bro

U.S. Drought Monitor:
http://droughtmonitor.unl.edu

U.S. Drought Portal:
http://www.drought.gov

National Drought Mitigation Center:
http://drought.unl.edu

Texas Water Development Board Reservoir Website:
https://waterdatafortexas.org/reservoirs/statewide

Texas Interagency Coordination Center (TICC):
http://ticc.tamu.edu

Texas Commission on Environmental Quality (water restrictions):
www.tceq.texas.gov/drinkingwater/trot/location.html

ACKNOWLEDGMENTS...

The Drought Monitor is a multi-agency effort involving NOAA`s
National Weather Service and National Centers for Environmental
Information...the USDA...state and regional center climatologists
and the National Drought Mitigation Center. Information for this
statement has been gathered from NWS and FAA observation sites...the
USDA...state Agrilife Extension Service District agents, Texas Inter-
agency Coordination Center, Texas Forest Service, state and federal
wildlife departments Texas Commission on Environmental Quality
(TCEQ), Texas Water Development Board (TWDB) and the International
Boundary and Water Commission (IBWC).

QUESTIONS OR COMMENTS...

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

National Weather Service
20 South Vermillion Road
Brownsville, TX
Phone: 956-504-1432
Email: sr-bro.webmaster@noaa.gov

$$

Castillo


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