Drought Information Statement
Issued by NWS Brownsville, TX

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630
AXUS74 KBRO 240125
DGTBRO

TXC047-061-215-247-261-427-489-505-260130
Drought Information Statement
National Weather Service Brownsville TX
830 PM CDT Mon Apr 23 2018

...Moderate drought conditions continue over portions of
deep South Texas...

.SYNOPSIS...

Rainfall has been below normal across most of deep south Texas so
far for the month of April except across northern portions of Jim
Hogg county...southern portions of Brooks county...southwest
portions of Kenedy county...eastern portions of Starr county and
southwest portions of Hidalgo county where rainfall has been above
normal. During the last 90 days...deep South Texas has received
anywhere from 25 to 100 percent of their normal rainfall except
across portions of Cameron...Willacy...Kenedy and Starr counties
where 75 to 150 percent of normal rainfall fell.

According to the latest United States Drought Monitor...Moderate
(D1) drought conditions were across most of Hidalgo and Zapata
counties as well as extreme western portions of Cameron...Willacy
and Jim Hogg counties. In addition...extreme northeast portions of
Jim Hogg and Brooks counties and extreme northwest and southwest
portions of Kenedy county were also experiencing moderate drought
conditions. Abnormally dry conditions (D0) were across the remainder
of deep South Texas except across central portions of Starr county
and eastern portions of Kenedy county. Drought conditions across
deep South Texas are affecting agricultural interests and grasslands
as well as ecologic and hydrologic interests.

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 April 23rd
indicated a moderate fire danger over the area. The latest Keetch-
Byram Drought Indices (KBDI) were 500 to 600 over all of deep South
Texas. 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...short to very short soil
moisture levels were being reported across the area. In Hidalgo
county, harvest of sugarcane, citrus and vegetables continued.

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, March 2018 brought above normal temperatures and below
normal rainfall across most of deep South Texas except across
portions of Starr county and northern portions of Zapata and Brooks
counties where normal to above normal rainfall fell.

Current rainfall to date for the month of April at Brownsville is
0.94 inches or 0.25 inches below normal. Year to date rainfall is
3.66 inches or 1.11 inches below normal.

Current rainfall to date for the month of April at Harlingen is 0.33
inches or 0.97 inches below normal. Year to date rainfall is 3.11
inches or 1.95 inches below normal.

Current rainfall to date for the month of April at McAllen is 1.01
inches or 0.09 inches above normal. Year to date rainfall is 2.32
inches or 1.79 inches below normal.

PRECIPITATION/TEMPERATURE OUTLOOK...

Meteorological outlook...April 24th through April 30th...A weak cold
front will move into the Rio Grande valley on April 26th providing
scattered showers and isolated thunderstorms across portions of deep
South Texas on the 25th through the 26th. Another weak cold front is
expected to move into the area on April 27th but significant
rainfall is not expected with this frontal boundary until the 28th
as the front stalls near the Rio Grande valley. Expect isolated
showers across portions of deep South Texas from April 28th through
April 30th.

Temperatures will be near normal on the 24th and the 25th before
becoming slightly below normal on the 26th and continuing through
the 30th. Overall average temperatures will be near normal to
slightly below normal from April 29th through May 3rd.

Rainfall totals will generally be a quarter of an inch to an inch
across most of deep South Texas through April 30th. Overall average
rainfall will be above normal from April 29th through May 3rd.

The long range climate outlook for deep South Texas through July
2018...derived from guidance from the National Weather Service and
the Climate Prediction Center...indicates that generally above
normal temperatures and equal chances of below normal...normal or
above normal rainfall...will be expected for deep South Texas
through the rest of the Spring into the Summer of 2018. The latest
seasonal drought outlook indicates that drought is likely to persist
across portions of deep South Texas through the rest of the Spring
into the Summer of 2018.

HYDROLOGIC SUMMARY AND OUTLOOK...

According to the Texas Water Development Board (TDWB)...the current
Texas water share at Falcon Reservoir has decreased during the past
four weeks to 39.9 percent. This is a decrease from a previous level
of 54.5 percent three months ago. The Texas water share at Falcon at
this time last year was at 41.2 percent. The current Texas water
share at Amistad Reservoir has decreased slightly during the past
four weeks to 73.1 percent. This is a slight decrease from a
previous level of 75.5 percent three months ago. The Texas water
share at Amistad at this time last year was at 73.0 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...

The next Drought Information Statement will be issued around Monday,
May 21st, 2018, unless conditions warrant an earlier update.

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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