April 2016 Recap: Regional Flood/Severe Weather

[unome]

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
557 AM CDT MON APR 18 2016

...FLASH FLOOD EMERGENCY EXPANDED TO THE EAST...

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN HARRIS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 900 AM CDT

* AT 552 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE HEAVY RAIN ACROSS THE WARNED
AREA. FLASH FLOODING IS OCCURRING. BUSH INTERCONTINENTAL AIRPORT IS APPROACHING
9 INCHES OF RAINFALL. RAINFALL RATES ARE RANGING BETWEEN 2 TO 4 INCHES AN HOUR.

THIS IS A FLASH FLOOD EMERGENCY. THIS IS A PARTICULARLY DANGEROUS SITUATION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HUMBLE...KATY...JERSEY VILLAGE...SPRING...THE WOODLANDS...ELDRIDGE /
WEST OAKS...GREATER GREENSPOINT...SOUTHEASTERN ADDICKS PARK TEN...
SPRING BRANCH NORTH...SPRING BRANCH WEST...ALDINE...KINGWOOD...OAK
RIDGE NORTH...SHENANDOAH...WOODLOCH...GREATER INWOOD...WESTBRANCH...BUSH
INTERCONTINENTAL AIRPORT...PORTER HEIGHTS AND SPLASHTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE-THREATENING SITUATION. STAY OFF ROADS IN
THE EMERGENCY AREA.

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

[unome]

hgxchat 2016/04/18 5:59 AM iembot

HGX issues Flood Warning for ((ELBT2)) until further notice
hgxchat 2016/04/18 5:59 AM iembot

HGX issues Flood Warning for ((FHNT2)) until further notice
hgxchat 2016/04/18 5:59 AM iembot

HGX issues Flood Warning for ((WABT2)) until further notice
hgxchat 2016/04/18 5:59 AM iembot

HGX issues Flood Warning for White Oak Bayou at Houston [TX] till Apr 19, 7:59 AM CDT
hgxchat 2016/04/18 5:57 AM iembot

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON, TX
559 AM CDT MON APR 18 2016

...The National Weather Service in Houston/Galveston has issued a flood warning
for the following rivers...

White Oak Bayou Ella Boulevard affecting the following counties in
Texas...Harris
White Oak Bayou Fairbanks North Houston affecting the following
counties in Texas...Harris
White Oak Bayou At Alabonson Road affecting the following counties in Texas...
Harris
White Oak Bayou At Heights Boulevard affecting the following counties in
Texas...Harris


For White Oak Bayou at Ella Boulevard...Jones Road...Jersey Village...Fairbanks
North Houston...Alabonson Road...Tidwell Road...Pinemont...Heights Boulevard,
Minor flooding is occurring, with Moderate flooding forecasted.

The current weather is dominated by a slow moving cluster of thunderstorms.
This weather system will produce rainfall amounts ranging from 5 to 10 inches.
All of the White Oak Bayou watershed is now included in the flooding warning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay away from the river until water levels recede.

Motorists should avoid any water covered roads and find an alternate route.

Livestock and equipment should remain out of the flood plain for the next few
days.



Stay tuned to NOAA Weather radio or other news sources for further updates.

[srainhoutx]

Will need to monitor next shortwave rotating around the base of the trough near Del Rio. Back building thunderstorms to our West in San Antonio and a bit further W towards the Edwards Plateau is moving generally Eastward along the stalled boundary.

[davidiowx]

Does it look like the line has slowed its progression southward? Kinda worried this may be a similar event that our friends North of I-10 have experienced.

[srainhoutx]

Does it look like the line has slowed its progression southward? Kinda worried this may be a similar event that our friends North of I-10 have experienced.

Front flank squall line is progressing ESE towards Chambers County, BUT becoming increasingly concerned with strengthening development to our West along the I-10 Corridor back to near Kerrville with the next approaching shortwave.

[Andrew]

Very concerned about the metro region too. Progression has slowed a bit and strong inflow from the south.

[Cromagnum]

Any chance of this filling in to the south? From Pearland southward not much of anything has happened.

[srainhoutx]

Flash Flood Emergency will be expanded yet again by HGX to include locations further S including portions of Southern Harris County

[unome]

thinking of driving in on the nw side? not a good idea

[srainhoutx]

Playing catch up. Latest from Jeff:

THIS IS A LIFE THREATENING SITUATION

Rainfall last 12-hrs of 10-15 inches over NW Harris County leading to very significant flash flood event. Numerous reports of house flooding from at least 40 different subdivisions from both rainfall and channels. Many homes are flooding that have likely not flooded before based on channel water levels in the Addicks watershed.

Major flooding (structures)

Greens Bayou
White Oak Bayou
Cypress Creek
Horsepen Creek
Langham Creek
South Mayde Creek
Bear Creek
Little Cypress Creek
Willow Creek
Spring Creek
Halls Bayou

Tremendous number of calls requesting water rescue from many different areas.

Forecast:
Catastrophic training event refuses to end with new development to the west which may come up over already hard hit areas of Waller and N Harris County. Storm totals for 12-18 hours could push 15-20 inches.

[srainhoutx]

Further West, Flash Flood Warnings being issued in the San Antonio Area on E into New Braunfels and further West into the Edward Plateau area with the next shortwave. Water Rescues underway across many EWX Forecast Locations including US 290 on the way to Austin.

[unome]

neighbor tried getting to 290 via Barker Cypress from Huffmeister direction, water up to the running boards on his F-250, cars parked, stalled all over, turned around and came back, before reaching 290 - his advice "don't even try it"

[ticka1]

i am back home driving is dangerous - roads are flooded. got message park and rides closed

[srainhoutx]

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
630 AM CDT MON APR 18 2016

...FLASH FLOOD EMERGENCY EXPANDED SOUTH...

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
EAST CENTRAL COLORADO COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
WEST CENTRAL HARRIS COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN FORT BEND COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 900 AM CDT

* AT 624 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A BAND OF THUNDERSTORMS PRODUCING
VERY HEAVY RAIN ACROSS THE WARNED AREA. RAINFALL RATES ARE RANGING FROM 2 TO 4
INCHES AN HOUR. FLASH FLOODING IS OCCURRING.

THIS IS A FLASH FLOOD EMERGENCY. THIS IS A PARTICULARLY DANGEROUS SITUATION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NORTHEASTERN SUGAR LAND...KATY...SEALY...BROOKSHIRE...COLUMBUS...BUNKER
HILL VILLAGE...PINEY POINT VILLAGE...MISSION BEND...TOWN WEST...SPRING
BRANCH WEST...SPRING BRANCH NORTH...SPRING VALLEY...SOUTHERN ELDRIDGE
/ WEST OAKS...PECAN GROVE...MEADOWS PLACE...HEDWIG VILLAGE...FULSHEAR...
SIMONTON...SAN FELIPE AND ALIEF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE-THREATENING SITUATION. STAY OFF ROADS
IN THE EMERGENCY AREA.

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

[davidiowx]

I would strongly suggest not going anywhere this morning. This is not worth risking your life or property over.

[wxman57]

I'm stuck at home. About 4" of rain so far and the roads are flooded. May be at home for quite a while today.

[unome]

pretty much says it all http://radar.weather.gov/lite/N0R/HGX_loop.gif

[unome]

http://gis.centerpointenergy.com/outagetracker/

As of 4/18/2016 6:35:14 AM, CenterPoint Energy reporting 107274 Customers without lights.

updates in 5 minutes

[srainhoutx]

HGX is concerned about the next shortwave approaching. Radar Loop from EWX:

[Andrew]

I10 at Houston Ave