Drought Information Statement
Issued by NWS Brownsville, TX

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000
AXUS74 KBRO 192259 AAA
DGTBRO

TXC047-061-215-247-261-427-489-505-212300
Drought Information Statement...updated
National Weather Service Brownsville TX
600 PM CDT Fri May 19 2017

...Severe drought conditions have developed across extreme southern
portions of Cameron County...
...Moderate drought conditions continue across southern portions of
Cameron County...

.SYNOPSIS...

Rainfall was above normal across most portions of deep South Texas
during the month of April except for portions of Cameron and Hidalgo
counties where rainfall was below normal. During the last 90
days...deep South Texas has received anywhere from 125 to 200
percent of their normal rainfall except across portions of Cameron
county where 50 to 100 percent of normal rainfall fell.

According to the latest United States Drought Monitor...severe (D2)
drought conditions have developed across extreme southern portions
of Cameron county. Moderate (D1) drought conditions continue across
southern portions of Cameron county. Abnormally dry conditions (D0)
continue across the rest of Cameron county and have expanded across
most of Hidalgo county. 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. The latest Fire
Danger Map from the Texas Inter-Agency Coordination Center (TICC) on
May 14th indicates a moderate fire danger over most of the area
except for high across the northern portions of Zapata and Jim Hogg
counties. The latest Beech-Byram Drought Indices (KBDI) were 300 to
400 over Kenedy, Jim Hogg, Brooks and Zapata counties. KBDI`s of 400
to 500 were over Willacy, Hidalgo and Starr counties. KBDI`s of 500
to 600 were over Cameron county. 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...corn, sorghum and cotton fields
were being irrigated due to dry conditions and strong winds. Pasture
and rangeland conditions remained fair to poor but they could use
some moisture. Some areas improved but others were declining rapidly
due to hot and dry conditions and some grasses were turning brown.
Cattle body condition scores remained good. Stock tanks needed
rainfall to replenish. In Hidalgo county, harvesting of 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, April 2017 brought above normal temperatures and above
normal rainfall across most of deep South Texas, except across
portions of Cameron and Hidalgo counties where below normal rainfall
fell.

Current rainfall to date for the month of May at Brownsville is 0.03
inches or 1.52 inches below normal. Year to date rainfall is 4.04
inches or 2.63 inches below normal.

Current rainfall to date for the month of May at Harlingen is 0.12
inches or 1.32 inches below normal. Year to date rainfall is 4.52
inches or 2.35 inches below normal.

Current rainfall to date for the month of May at McAllen is a trace
or 1.37 inches below normal. Year to date rainfall is 4.88 inches or
1.02 inches below normal.

PRECIPITATION/TEMPERATURE OUTLOOK...

Meteorological outlook...May 20th through May 29th...A weak cold
front will move into South Texas on the 20th possibly providing
significant rainfall across portions of deep South Texas the 20th
through the 22nd. A weak cold front will move into deep South Texas
on the 23rd possibly providing significant rainfall across the area
the 23rd and 24th. Temperatures will be above normal on the 20th.
Near normal temperatures can be expected the 21st through the 23rd.
Below normal temperatures are expected to develop on the 24th before
returning to near normal on the 25th and near normal to above normal
on the 26th. Overall average temperatures will be above normal from
May 25th through May 29th for late May.

Rainfall totals will generally range from a tenth of an inch to 1
inch across portions of deep South Texas through May 26th. Overall
average rainfall will be below normal from May 25th through May
29th. Any rainfall that occurs in the southern portions of Cameron
county through the rest of May will provide some drought relief for
the area.

The long range climate outlook for deep South Texas through August
2017...derived from guidance from the National Weather Service and
the Climate Prediction Center...indicates that generally above
normal temperatures and above normal rainfall will be expected for
deep South Texas through Summer 2017. At this time...the potential
for drought conditions ending through August 2017 is low to
moderate.

Any rainfall that affects deep south Texas through August 2017 will
provide 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 decreased during the past
four weeks to 33.3 percent. This is a lowering from a previous level
of 38.3 percent three months ago. The Texas water share at Falcon at
this time last year was at 45.2 percent. The current Texas water
share at Amistad Reservoir has decreased during the past four weeks
to 74.6 percent. This is a lowering from a previous level of 82.1
percent three months ago. The Texas water share at Amistad at this
time last year was at 74.2 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
Tuesday, June 13th, 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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