Flood Watch
National Weather Service Houston/Galveston TX
728 PM CDT Sun Jun 16 2019
TXZ177-178-195>200-210>214-226-227-237-300-313-170830-
/O.NEW.KHGX.FF.A.0006.190617T0028Z-190617T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Austin-Brazos-Burleson-Chambers-Coastal Harris-Colorado-Fort Bend-
Grimes-Inland Brazoria-Inland Harris-Montgomery-Northern Liberty-
San Jacinto-Southern Liberty-Walker-Waller-Washington-Wharton-
Including the cities of Alvin, Anahuac, Angleton, Baytown,
Bellville, Brenham, Brookshire, Bryan, Caldwell, Cleveland,
Coldspring, College Station, Columbus, Conroe, Dayton, Devers,
Eagle Lake, El Campo, First Colony, Hempstead, Houston,
Huntsville, Liberty, Mission Bend, Missouri City, Mont Belvieu,
Navasota, Old River-Winfree, Pasadena, Pearland, Pecan Grove,
Prairie View, Rosenberg, Sealy, Shepherd, Somerville, Stowell,
Sugar Land, The Woodlands, Waller, Weimar, Wharton, and Winnie
728 PM CDT Sun Jun 16 2019
...FLASH FLOOD WATCH IN EFFECT UNTIL 7 AM CDT MONDAY...
The National Weather Service in Houston/Galveston has issued a
* Flash Flood Watch for a portion of southeast Texas...including
the following counties...Austin...Brazos...Burleson...
Chambers...Coastal Harris...Colorado...Fort Bend...Grimes...
Inland Brazoria...Inland Harris...Montgomery...Northern
Liberty...San Jacinto...Southern Liberty...Walker...Waller...
Washington and Wharton.
* Until 7 AM CDT Monday
* Periods of showers and thunderstorms are expected this evening
through the overnight hours. This rainfall will be heavy at
times.
* Widespread rainfall totals should average from 1 to 2 inches
with isolated totals of 4 inches for locations along and north
of Interstate 10 tonight. The collision of a large area of
storms moving in from the north and activity already lingering
over the region will help produce additional rounds of moderate
to heavy rainfall tonight. Some locations in the watch area
have already had 2 to 4 inches of rainfall with mainly street
flooding impacts.
June 2019: Showers/Storms Increasing To End June
-
Texaspirate11
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Why’s there a flash flood watch being issued for Wharton County when we’re only expected to see 1-2” of rain? I mean I understand soils are saturated, but 1-2” of rain isn’t going to cause any flooding.
Severe thunderstorm watch until 3 AM now? Are things really going to get active late tonight?
Check out the nam and HRRR.. showing a nice line of storms coming through later tonight. That’s why these watches are being hoisted
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srainhoutx
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Sunday evening weather briefing from Jeff:
NWS has issued a Flash Flood Watch until 700am Monday morning along and NE of a line from College Station to Houston.
A severe thunderstorms watch has been issued along and SW of a line from College Station to Sugar Land to Surfside until 300am Monday morning.
Heavy rainfall and severe thunderstorms will be possible tonight into early Monday.
Highly meso scale forecast continues to evolve early this evening with surface outflow boundary extending from near Tomball SE to near High Island and pushing SW. Along this boundary numerous thunderstorms are in progress over portions of Liberty, Harris, and Montgomery Counties. Heavy rainfall is the main threat with these cells with recent HCFCD gages in SE Montgomery County recording 2.60 inches in 1 hour. Storms are developing SW with the leading edge of the outflow boundary and this should help to prevent significant rainfall amounts. Additional rainfall amounts tonight of 1-2 inches with isolated totals of up to 4 inches are possible. Overall…it looks as if the surface outflow is still moving SW and as long as that continues the rainfall rates will be manageable…should the outflow boundary stall heavy rainfall could begin to focus over that certain area.
Looking upstream a line of strong to severe thunderstorms is quickly developing across central TX and this line will likely move SE and across much of SE TX tonight into early Monday especially west of I-45. The threat for damaging winds will be highest west of I-45 and toward Matagorda Bay along with additional heavy rainfall. It is still somewhat uncertain as to how the activity over central TX will evolve late tonight, but a bowing line of storms moving toward the coast is possible which would enhance the damaging wind threat.
NWS has issued a Flash Flood Watch until 700am Monday morning along and NE of a line from College Station to Houston.
A severe thunderstorms watch has been issued along and SW of a line from College Station to Sugar Land to Surfside until 300am Monday morning.
Heavy rainfall and severe thunderstorms will be possible tonight into early Monday.
Highly meso scale forecast continues to evolve early this evening with surface outflow boundary extending from near Tomball SE to near High Island and pushing SW. Along this boundary numerous thunderstorms are in progress over portions of Liberty, Harris, and Montgomery Counties. Heavy rainfall is the main threat with these cells with recent HCFCD gages in SE Montgomery County recording 2.60 inches in 1 hour. Storms are developing SW with the leading edge of the outflow boundary and this should help to prevent significant rainfall amounts. Additional rainfall amounts tonight of 1-2 inches with isolated totals of up to 4 inches are possible. Overall…it looks as if the surface outflow is still moving SW and as long as that continues the rainfall rates will be manageable…should the outflow boundary stall heavy rainfall could begin to focus over that certain area.
Looking upstream a line of strong to severe thunderstorms is quickly developing across central TX and this line will likely move SE and across much of SE TX tonight into early Monday especially west of I-45. The threat for damaging winds will be highest west of I-45 and toward Matagorda Bay along with additional heavy rainfall. It is still somewhat uncertain as to how the activity over central TX will evolve late tonight, but a bowing line of storms moving toward the coast is possible which would enhance the damaging wind threat.
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Twitter @WeatherInfinity
You may be able to see it on radar - crazy gusts with secondary outflow boundary!
Some reports of gusts over 60 mph https://mesonet.agron.iastate.edu/lsr/# ... 70459/0100
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GBinGrimes
- Posts: 108
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- Location: Anderson, TX
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Whoa Nelly...Anderson getting blasted right now. Mercy sakes!
I’m not surprised. The wind-driven rain lashed the windows and blew around furniture. 1.55 in of rain in 30 minutes.unome wrote: ↑Sun Jun 16, 2019 10:02 pm Some reports of gusts over 60 mph https://mesonet.agron.iastate.edu/lsr/# ... 70459/0100
https://www.wrh.noaa.gov/zoa/getobext.php?sid=KCLL
https://www.wrh.noaa.gov/zoa/getobext.php?sid=KCFD
batten down the hatches if you're in the path of this & you have time to secure stuff in your yard
check out the WV loop at the links above on the satellite tab - yikes
https://www.wrh.noaa.gov/zoa/getobext.php?sid=KCFD
batten down the hatches if you're in the path of this & you have time to secure stuff in your yard
check out the WV loop at the links above on the satellite tab - yikes
all ok for you & yours, Dr ?DoctorMu wrote: ↑Sun Jun 16, 2019 10:31 pmI’m not surprised. The wind-driven rain lashed the windows and blew around furniture. 1.55 in of rain in 30 minutes.unome wrote: ↑Sun Jun 16, 2019 10:02 pm Some reports of gusts over 60 mph https://mesonet.agron.iastate.edu/lsr/# ... 70459/0100
Even though the outflow has pushed through, you can see more gravity waves pushing south, and the storms from Central Texas keep holding together - keep an eye out for sure!
NWS Houston Doppler radar.
https://radar.weather.gov/ridge/radar.p ... R&loop=yes
https://radar.weather.gov/ridge/radar.p ... R&loop=yes
Just a little clean up here. Wow at the 66 mph gust in Bryan.
NW Harris Co should be seeing action now.
NW Harris Co should be seeing action now.
blew through here, but nothing major, thankfully
https://www.wpc.ncep.noaa.gov/metwatch/ ... 37&yr=2019
https://www.wpc.ncep.noaa.gov/metwatch/ ... 37&yr=2019
Mesoscale Precipitation Discussion 0437
NWS Weather Prediction Center College Park MD
1145 PM EDT Sun Jun 16 2019
Areas affected...The Hill Country through the Upper Coast of Texas
Concerning...Heavy rainfall...Flash flooding possible
Valid 170344Z - 170944Z
Summary...Clusters of thunderstorms will congeal into a larger
complex tonight producing a flash flood risk. Rain rates in excess
of 2"/hr are possible, and where storms merge or training occurs,
2-4" of rainfall is likely, with locally higher amounts possible.
This has the potential to produce flash flooding, especially
within urban areas, along any terrain, or where FFG is relatively
lowered due to antecedent rainfall.
Discussion...Clusters of thunderstorms have become more widespread
this evening beneath a mid-level trough moving overhead northern
Texas and Oklahoma. A remnant outflow boundary is evident on
regional radar mosaic as an arc of thunderstorms sinking slowly
southward across the area, while enhanced upper diffluence pointed
northward from OK/LA is evident by a cirrus channel on GOES-16 IR
imagery. All of these features together produce a chaotic
environment, but one that will remain highly favorable for
thunderstorms with heavy rainfall through the next several hours.
Recent RAP analyzed MUCape is still 3000-4000 J/kg with PWATs of
over 1.8 inches lifting into Texas. This moist advection is
occurring on an 850mb LLJ which will persist at 20-30 kts while
veering from SE to S. This LLJ will continue to pump moisture into
the region, with subsequent isentropic ascent atop any residual
outflows aiding in surface based lift due to the significant
instability. As PWATs continue to climb towards 2 inches, above
the 90th percentile for the date, and ascent remains robust in
response to both synoptic and mesoscale features, convection will
expand in coverage and likely organize in an environment with
effective bulk shear of 30-45 kts. The primary focus may continue
to be the large outflow sinking southward, and this is expected to
slow or even stall as 0-6km mean wind becomes less than 10 kts
from the west as it encounters the strengthening S/SE LLJ. RAP
Corfidi vectors are forecast to remain relatively fast, 15-20 kts,
but will feature a sharp angle to the right of the mean flow
suggesting backbuilding of cells will continue along and behind
this outflow. Where this occurs, the flash flooding threat will be
greatest.
Although some uncertainty into placement of the heaviest rainfall
remains in recent CAMs, there is good consensus for 2-4" of
rainfall due to rain rates which may exceed 2"/hr at times. Some
of this area is already primed for flash flooding due to previous
rainfall and lower FFG, urban affects (near Houston), or terrain
(along the Balcones Escarpment), and these are the locations which
have the highest chances for flash flooding. If training can occur
across these areas, flash flooding would be likely.
Weiss
ATTN...WFO...CRP...EWX...FWD...HGX...LCH...SHV...SJT...
ATTN...RFC...WGRFC...
Special Weather Statement
National Weather Service Houston/Galveston TX
1058 PM CDT Sun Jun 16 2019
TXZ178-199-200-213-214-227-237-300-313-170445-
San Jacinto TX-Inland Brazoria TX-Northern Liberty TX-Chambers TX-
Coastal Harris TX-Inland Harris TX-Southern Liberty TX-Fort Bend TX-
Montgomery TX-
1058 PM CDT Sun Jun 16 2019
...STRONG THUNDERSTORMS MOVING THROUGH SOUTHERN SAN JACINTO...CENTRAL
FORT BEND...SOUTHEASTERN MONTGOMERY...NORTH CENTRAL BRAZORIA...
NORTHWESTERN CHAMBERS...SOUTHWESTERN LIBERTY AND HARRIS COUNTIES...
At 1056 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Cut And Shoot to near Splashtown to Weston
Lakes. Movement was southeast at 30 mph.
Winds up to 40 mph will be possible with these storms.
Locations impacted include...
Pasadena, Pearland, Sugar Land, northwestern Baytown, Missouri City,
Deer Park, Rosenberg, Stafford, South Houston, Bellaire, Humble, West
University Place, Richmond, Galena Park, Jacinto City, Jersey
Village, Dayton, northwestern Manvel, Hunters Creek Village and
Bunker Hill Village.
There is a 2nd outflow from Coleman to Longview blowing up.
storm reports keep popping in https://twitter.com/iembot_hgx
the last one:
the last one:
At 9:45 PM CDT, 1 NE College Station [Brazos Co, TX] TRAINED SPOTTER reports TSTM WND DMG. SLIDING GLASS DOORS BLOWN IN AT THE TEXAS A & M OCEANOGRAPHY AND METEOROLOGY BUILDING. LARGE TREE LIMBS DOWN.