Hydrometeorological Discussion
Issued by NWS West Gulf RFC

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
272
AGUS74 KFWR 221648
HMDFWR
HYDROMETEOROLOGICAL DISCUSSION
NATIONAL WEATHER SERVICE...WEST GULF RFC...FORT WORTH TX
1047 AM CST THU FEB 22 2018

                VALID FEBRUARY 22 THROUGH FEBRUARY 27

...WIDESPREAD HEAVY RAINFALL EXPECTED THROUGH SATURDAY FOR
NORTH AND EAST TEXAS...

                   ...METEOROLOGICAL DISCUSSION...
Widespread showers and thunderstorms are currently impacting most
of North and Northeast Texas...and this activity is expected to
continue throughout the day. Rainfall amounts are averaging 0.25 to
0.50 inch per hour, with higher amounts reported in isolated storms.
Rainfall will become more scattered during the evening hours, as an
upper disturbance exits the WGRFC region.

Additional storms are forecast again late tonight/early tomorrow
as a stationary boundary currently on the coast, begins to move
north as a warm front. Rainfall amounts of up to 1.00 inch are
expected with higher amounts possible. By Saturday morning, a line
of showers and thunderstorms is forecast to develop along the I-35
corridor, and quickly move eastward as the cold front pushes out
of the area. Thereafter, a slight improvement in atmospheric
conditions will begin Sunday.

More rainfall is possible again late next week. Stay tuned for more
updates.

                    ...PRECIPITATION FORECAST...
For Today into Friday morning, Mean Areal Precipitation (MAP)
amounts of up to 1.00 inch are forecast for portions of North
and Northeast Texas.

For Friday into Saturday morning, MAP amounts of up to
1.00 inch are forecast for portions of North and Northeast
Texas...mainly along and north of I-20.

For Saturday into Sunday morning, MAP amounts of 0.25 to 0.50 inch
are forecast for portion of East Texas.

For Sunday into Tuesday morning, MAP amounts of 0.25 to 0.50 inch
are forecast for portion of Southeast Texas.

NOTE - This product will no longer be generated after March 1, 2018.

                     ...HYDROLOGIC DISCUSSION...
...Neches Basin...
...Moderate Flooding...
Heavy rainfall has occurred over a large area of the Neches River
basin over the last several days.  Rainfall is forecast to continue
for the next couple days, mainly over the upper and middle sections
of the basin. River levels have risen to, or are forecast to rise
to, minor flood levels. The only exception is on the lower part
where the Neches River at the Saltwater Barrier (NSBT2)is forecast
to rise into moderate flood levels.

...Sabine Basin...
...Moderate Flooding...
The past 24 hours have left 3 to 5 more inches of rainfall with
some isolated higher amounts mostly over Toledo Bend Reservoir.
However, upstream Lake Fork released water on to flooding coming
down the Sabine to put the river near Quitman into moderate flood
category. Most of the other sites will be in minor impact flooding
as rain still lingers in the area keeping levels elevated. Downstream
will depend on releases from Toledo Bend which could extend for a bit
of
time.

...Trinity Basin...
...Minor Flooding...
Minor flooding occurring on both ends of the Trinity as water from
the heavy rainfall over the past 48 hours is moving its way through
the river. Minor impacts are expected along the mainstem and the
tributaries should be close to if not cresting and receding into the
mainstem.  Will take several days to move the water down through Lake
Livingston and out to the Gulf.

...San Jacinto Basin...
...Higher Flow Non-Flood Forecasts...
The East Fork of the San Jacinto received some heavier amounts of
rainfall of 3++ inches causing some sites to rise out of banks, but
no impacts are expected.

...Remainder of WGRFC Basins...
Rain remains in the forecast for the weekend, but will more than
likely extend current flooding, not cause much in the way of
additional flooding.  However, areas in the eastern half of the
state of Texas are sensitive and will respond if totals begin to
mount.

Otherwise the rest of the area should remain within banks.


              ...SUPPLEMENTARY GRAPHICAL INFORMATION...
The following URLs (all lower case) provide additional graphical
information on current and forecast hydrologic conditions, past and
future precipitation, and drought and climate forecasts.  This
information is provided by a variety of National Weather Service,
NOAA, and private sector entities.

NOTE - This product will no longer be generated after March 1, 2018.

All information in this product can be found at:
http://www.weather.gov/wgrfc/quick_briefing

For specific information on river conditions, refer to the AHPS
pages from the local NWS offices at:
http://water.weather.gov/ahps/

The Flood Potential Outlook can be viewed on our webpage at:
http://www.weather.gov/wgrfc/wgrfcfop

The West Gulf River Forecast Center is now on Facebook:
http://www.facebook.com/NWSWestGulf

National Precipitation Analysis:
http://water.weather.gov/precip/

The forecast rainfall amounts (QPF) can be viewed on our webpage at:
http://www.weather.gov/wgrfc/wgrfcqpfpage

The US Drought Assessment:
http://www.cpc.ncep.noaa.gov/products/Drought

The latest on Reservoir Information for Texas:
http://www.waterdatafortexas.org/reservoirs/statewide

MCCANTS


$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.