Drought Information Statement
Issued by NWS Brownsville, TX

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AXUS74 KBRO 250030
DGTBRO

TXC047-061-215-247-261-427-489-505-270030
Drought Information Statement
National Weather Service Brownsville TX
730 PM CDT Sun Sep 24 2017

...Severe drought conditions have developed across extreme southern
portions of Hidalgo County...
...Moderate drought conditions have expanded across southern
portions of Hidalgo County...
...Moderate drought conditions have developed across portions of
Zapata and Jim Hogg Counties...

.SYNOPSIS...

Rainfall was below normal across most of the Rio Grande valley
during the month of August. Rainfall was above normal across
portions of Zapata...Jim Hogg and Kenedy counties. During the last
90 days...deep South Texas has received anywhere from 25 to 75
percent of their normal rainfall except across southeast portions of
Cameron county...northern portions of Zapata county and southwest
portions of Kenedy county...where 75 to 125 percent of normal
rainfall fell.

According to the latest United States Drought Monitor...severe (D2)
drought conditions were across extreme southern portions of Hidalgo
county. Moderate (D1) drought conditions were across southern
portions of Hidalgo county...southern portions of Zapata county and
western portions of Jim Hogg county. Abnormally dry conditions (D0)
were across most of the remainder of deep South Texas. Drought
conditions across deep South Texas are affecting mainly agricultural
interests and grasslands.

SUMMARY OF IMPACTS...

FIRE DANGER IMPACTS.

According to the National Interagency Fire Center, the potential for
significant wildland fires is normal for the area except across the
coastal sections of deep South Texas where the potential is below
normal. The latest Fire Danger Map from the Texas Inter-Agency
Coordination Center (TICC) on September 24th indicates a moderate
fire danger over most of the area except for high across eastern
portions of Cameron county. The latest Keetch-Byram Drought Indices
(KBDI) were 500 to 600 over Kenedy, Willacy, Brooks and Cameron
counties. KBDI`s of 600 to 700 were over Hidalgo, Starr, Jim Hogg
and Zapata counties. 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...rangeland and pasture conditions
declined with most in fair to poor conditions. Supplemental feeding
was steady or had increased, and calf weaning was underway a little
earlier than normal due to hot and dry conditions. Cattle body
conditions scores declined, but most herds were in fair condition.
Hay was still being produced. Cotton and peanuts were being
harvested. Some cotton fields were near harvest completion and
producers were busy spraying regrowth and cleaning fields post-
harvest. Local cattle markets reported above-average offerings with
steady prices for all classes of beef cattle. Soil moisture levels
were very short especially to the north.

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, August 2017 brought near normal to above normal
temperatures and below normal rainfall across most of deep South
Texas except across portions of Zapata, Jim Hogg and Kenedy counties
where above normal rainfall fell.

Current rainfall to date for the month of September at Brownsville
is 4.48 inches or 0.24 inches below normal. Year to date rainfall is
17.52 inches or 2.01 inches below normal.

Current rainfall to date for the month of September at Harlingen is
0.86 inches or 3.45 inches below normal. Year to date rainfall is
13.03 inches or 5.49 inches below normal.

Current rainfall to date for the month of September at McAllen is
0.84 inches or 2.92 inches below normal. Year to date rainfall is
7.63 inches or 9.70 inches below normal.

PRECIPITATION/TEMPERATURE OUTLOOK...

Meteorological outlook...September 25th through October 1st...An
upper level trough of low pressure across the western United States
on the 25th will bring moisture across northeast Mexico and
southwest Texas the 26th through the 28th before a weak cold front
moves into south Texas on the 28th. This will provide showers and
thunderstorms...some with heavy rainfall...across western portions
of deep South Texas the 25th through the 28th. Surface high pressure
will build into south Texas the 29th and rain chances will diminish
the 29th into the 30th. Temperatures will be near normal to above
normal the 25th and near normal to below normal the 26th through the
1st. Overall average temperatures will be near normal to below
normal from September 30th through October 4th for early October.

Rainfall totals will generally be a quarter of an inch to near two
inches across portions of deep South Texas through October 1st.
Overall average rainfall will be near normal from September 30th
through October 4th. Any rainfall that occurs in the southern
portions of Hidalgo county through the rest of September will
provide some drought relief for the area.

The long range climate outlook for deep South Texas through December
2017...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 Fall of 2017. At this time...the
potential for drought conditions ending through December 2017 is
low.

Any rainfall that affects deep south Texas through December 2017
will provide some drought relief from the current drought
conditions.

HYDROLOGIC SUMMARY AND OUTLOOK...

According to the Texas Water Development Board (TDWB)...the current
Texas water share at Falcon Reservoir has increased during the past
four weeks to 27.2 percent. This is a lowering from a previous level
of 30.0 percent three months ago. The Texas water share at Falcon at
this time last year was at 33.1 percent. The current Texas water
share at Amistad Reservoir has increased during the past four weeks
to 75.4 percent. This is a lowering from a previous level of 77.8
percent three months ago. The Texas water share at Amistad at this
time last year was at 81.7 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...

The next Drought Information Statement will be issued around
Sunday, October 22nd, 2017.

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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