April 2016 Recap: Regional Flood/Severe Weather

[djjordan]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1225 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL WHARTON COUNTY IN SOUTHEASTERN TEXAS...
COLORADO COUNTY IN SOUTHEASTERN TEXAS...
SOUTHWESTERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN FORT BEND COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 115 AM CDT

* AT 1224 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR FAYETTEVILLE TO 9 MILES NORTHEAST OF WEIMAR TO
COLUMBUS TO 8 MILES EAST OF SUBLIME...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.

* LOCATIONS IMPACTED INCLUDE...
NORTHWESTERN ROSENBERG...SEALY...BROOKSHIRE...BELLVILLE...COLUMBUS...
EAGLE LAKE...EAST BERNARD...WALLIS...FULSHEAR...SIMONTON...SAN FELIPE...
PATTISON...ORCHARD...WESTON LAKES...FRELSBURG...ALTAIR...CAT SPRING...
SHERIDAN...ROCK ISLAND AND GARWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[djjordan]

If you are in the Beaumont area heads up as you are getting some development to the south heading your way right now..... Also this big storm with the Severe Thunderstorm Warning looks to be bowing out as it moves east along IH-10 towards Houston metro..... Gusty straightline winds can be expected with hail threats continuing.

[djjordan]

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1246 AM CDT WED APR 13 2016

TXC015-089-157-473-481-130615-
/O.CON.KHGX.SV.W.0016.000000T0000Z-160413T0615Z/
WHARTON TX-COLORADO TX-WALLER TX-AUSTIN TX-FORT BEND TX-
1246 AM CDT WED APR 13 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTH CENTRAL WHARTON...COLORADO...SOUTHWESTERN WALLER...AUSTIN
AND NORTHWESTERN FORT BEND COUNTIES...

AT 1245 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR FAYETTEVILLE TO 10 MILES SOUTH OF INDUSTRY TO 7
MILES EAST OF COLUMBUS TO 6 MILES NORTHWEST OF EAGLE LAKE TO 17 MILES
EAST OF SUBLIME...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.

LOCATIONS IMPACTED INCLUDE...
NORTHWESTERN ROSENBERG...SEALY...BROOKSHIRE...BELLVILLE...COLUMBUS...EAGLE
LAKE...EAST BERNARD...WALLIS...FULSHEAR...SIMONTON...SAN FELIPE...PATTISON...
ORCHARD...WESTON LAKES...FRELSBURG...ALTAIR...CAT SPRING...ROCK ISLAND...
GARWOOD AND NEW ULM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[djjordan]

Special Marine Warning issued for Mariners in Galveston Bay at this time.... seek safe harbor.


BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1253 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
GALVESTON BAY...

* UNTIL 245 AM CDT

* AT 1249 AM CDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
ROUGHLY INDUSTRY TO SEALY TO EAGLE LAKE...MOVING EAST AT 45 KNOTS.
THIS LINE OF STORMS SHOULD REACH THE HOUSTON SHIP CHANNEL AROUND
135 AM CDT AND CONTINUE EASTWARD INTO GALVESTON BAY.

HAZARD...WIND GUSTS TO NEARLY 50 KNOTS AND SMALL HAIL.

SOURCE...RADAR INDICATED.

IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND
SUDDENLY HIGHER WAVES.

* LOCATIONS IMPACTED INCLUDE...
GALVESTON BAY...SCOTT BAY...MITCHELL BAY...TRINITY BAY...NORTHWESTERN
EAST GALVESTON BAY...UPPER SAN JACINTO BAY...EAGLE POINT...CRYSTAL
BAY...BLACK DUCK BAY...BURNET BAY...TABBS BAY AND THE TEXAS CITY DIKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

[DoctorMu]

10-12 min before Katy is impacted. Impressive bow echo. Incoming.

[djjordan]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1259 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN WHARTON COUNTY IN SOUTHEASTERN TEXAS...
SOUTHERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
WESTERN HARRIS COUNTY IN SOUTHEASTERN TEXAS...
EASTERN AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
FORT BEND COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 145 AM CDT

* AT 1259 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 8 MILES SOUTHWEST OF PINE ISLAND TO 7 MILES
NORTHWEST OF PATTISON TO BROOKSHIRE TO NEAR ORCHARD TO 10 MILES
NORTHWEST OF WHARTON...MOVING EAST AT 60 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.

* LOCATIONS IMPACTED INCLUDE...
SUGAR LAND...MISSOURI CITY...ROSENBERG...STAFFORD...BELLAIRE...WEST
UNIVERSITY PLACE...KATY...RICHMOND...TOMBALL...JERSEY VILLAGE...
BROOKSHIRE...HUNTERS CREEK VILLAGE...BUNKER HILL VILLAGE...PINEY POINT
VILLAGE...ASTRODOME AREA...SPRING VALLEY...FIRST COLONY...SPRING BRANCH
WEST...NEARTOWN / MONTROSE AND NEAR NORTHSIDE HOUSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[djjordan]

Bow Echo continues to push east at 45MPH towards Houston Metro. Severe Thunderstorm Warning in effect for The westside areas including West Houston, Astrodome area, Montrose, Sugar Land, Missouri City, Katy, Tomball, Jersey Village, Spring Branch and the like until 1:45AM. Winds could gust from 60-70 MPH as this squall line plows through. Power outages are possible in the area so be prepared with flashlights. Stay inside and away from windows as the storm passes your area.

[Houstonkid]

Heavy rain, a little pea sized hail and zero wind with this line, Katy area, Mason/Clay Roads.

[houstonia]

Thunder, lightning and some wind in southwest Houston right now (Sharpstown) Lightning is very bright.

[houstonia]

Oh lordy! Thar she blows!!

[djjordan]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
141 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL WHARTON COUNTY IN SOUTHEASTERN TEXAS...
HARRIS COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN GALVESTON COUNTY IN SOUTHEASTERN TEXAS...
NORTHERN BRAZORIA COUNTY IN SOUTHEASTERN TEXAS...
EASTERN FORT BEND COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 230 AM CDT

* AT 141 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SPRING BRANCH CENTRAL TO FAIRCHILDS TO NEAR
NEEDVILLE TO NEAR BOLING-IAGO...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.

* LOCATIONS IMPACTED INCLUDE...
PASADENA...PEARLAND...LEAGUE CITY...SUGAR LAND...BAYTOWN...MISSOURI
CITY...TEXAS CITY...FRIENDSWOOD...LA PORTE...DEER PARK...SOUTHEASTERN
ROSENBERG...ALVIN...ANGLETON...DICKINSON...STAFFORD...SOUTH HOUSTON...
BELLAIRE...WEST UNIVERSITY PLACE...LA MARQUE AND SANTA FE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[djjordan]

Heavy rain and small hail at my house ..... surprisingly very little wind.

[djjordan]

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
147 AM CDT WED APR 13 2016

TXZ226-236-237-130730-
MATAGORDA TX-BRAZORIA TX-WHARTON TX-
147 AM CDT WED APR 13 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WHARTON...NORTHERN
MATAGORDA AND SOUTHWESTERN BRAZORIA COUNTIES UNTIL 230 AM CDT...

AT 147 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES NORTHWEST OF MARKHAM...OR 11 MILES SOUTHEAST OF EL CAMPO...MOVING
EAST AT 40 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BAY CITY...WEST COLUMBIA...SWEENY...BRAZORIA...VAN VLECK...MARKHAM...WILD
PEACH VILLAGE AND DANEVANG.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHEASTERN TEXAS.

[djjordan]

Now is not such a good time to be on the water anyways....... Small craft seek safe harbor.


BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
153 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM...
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM...
MATAGORDA BAY...

* UNTIL 345 AM CDT

* AT 151 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ROUGHLY LIBERTY TO HOUSTON TO EDNA...MOVING
SOUTHEAST AT 30 KNOTS. ADDITIONAL CELLS WERE MOVING IN FROM THE
SOUTH AND WILL COLLIDE WITH THE INCOMING LINE CAUSING FURTHER
INTENSIFICATION.

HAZARD...WIND GUSTS 34 KNOTS OR GREATER AND SMALL HAIL.

SOURCE...RADAR INDICATED.

IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND
SUDDENLY HIGHER WAVES.

* LOCATIONS IMPACTED INCLUDE...
GALVESTON 256...BUOY 42035...MATAGORDA JETTY...BRAZOS 490...GALVESTON
317...GALVESTON 344...BRAZOS 400...HIGH ISLAND 63...TABS BUOY B...
MATAGORDA SHIP CHANNEL...BRAZOS 439...GALVESTON 150...HIGH ISLAND 157...
GALVESTON 221...TABS BUOY W...HIGH ISLAND A179...HIGH ISLAND 208...
MATAGORDA ISLAND 557...GALVESTON 282 AND SURFSIDE JETTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

[DoctorMu]

Heavy rain and small hail at my house ..... surprisingly very little wind.

There may be an outflow boundary ahead of the storm.

[djjordan]

Heavy rain and small hail at my house ..... surprisingly very little wind.

There may be an outflow boundary ahead of the storm.

That's what I was thinking as it looked like just before the bow echo made it to my house there was some convergence happening ahead of it. Not complaining though ... really didn't want to lose power and glad we got some rain .... lawn was starting to look a bit thirsty.

[djjordan]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
216 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...
SOUTHWESTERN BRAZORIA COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 245 AM CDT

* AT 215 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER VAN VLECK...OR
NEAR BAY CITY...MOVING EAST AT 35 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
WESTERN LAKE JACKSON...BAY CITY...WEST COLUMBIA...SWEENY...BRAZORIA...
JONES CREEK...VAN VLECK...MARKHAM AND WILD PEACH VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[djjordan]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
227 AM CDT WED APR 13 2016

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN LIBERTY COUNTY IN SOUTHEASTERN TEXAS...
GALVESTON COUNTY IN SOUTHEASTERN TEXAS...
CHAMBERS COUNTY IN SOUTHEASTERN TEXAS...
EAST CENTRAL MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN BRAZORIA COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN HARRIS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 330 AM CDT

* AT 224 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM OLD RIVER-WINFREE TO LEAGUE CITY TO NEAR DANBURY TO
NEAR BAY CITY...MOVING SOUTHEAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.

* LOCATIONS IMPACTED INCLUDE...
EASTERN PASADENA...EASTERN LEAGUE CITY...SOUTHEASTERN BAYTOWN...
GALVESTON CAUSEWAY...GALVESTON ISLAND WEST END...TEXAS CITY...LAKE
JACKSON...ALVIN...ANGLETON...DICKINSON...LA MARQUE...SANTA FE...FREEPORT...
SEABROOK...CLUTE...HITCHCOCK...BEACH CITY...KEMAH...SURFSIDE BEACH AND
GALVESTON PIER 21.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

[Katdaddy]

The early morning squall line that brought the small hail, gusty winds, and very heavy rain has pushed off the Middle and Upper TX Coast. A few additional thunderstorms will move along the coastal areas this morning. Nice weather Thursday and Friday before additional rain chances begin to increase Saturday afternoon. Onward to the 2016 National Tropical Weather Conference this morning.

[ticka1]

Email from Jeff Lindner - Wednesday morning:

Impressive line of thunderstorms crossed the area overnight with several large hail reports.

Overnight activity has progressed into the coastal waters of LA while the surface boundary has remained anchored near the coast. Trailing short wave energy continues to provide lift over the top of this boundary resulting in a W to E band of thunderstorms extending from south of Edna to Galveston Island. This line has shown very little motion to the north or south while it sits and trains from W to E . Rainfall totals are averaging 1-2 inches with these storms per hour and will have to watch totals in this area over the next few hours as flash flooding may quickly develop.

Thus far there is no radar indication of this activity attempting to lift northward toward the more populated areas of the US 59 corridor, but will need to keep an eye on any trends this morning on the meso scale. Could easily see 2-4 inches of rainfall in the next 2-3 hours over southern Jackson, Matagorda, Brazoria, and Galveston Counties.

Should see overall activity weaken and shift eastward by late morning with possibly some breaks in the overcast. Position of the upper level system over the southern plains will keep weak dynamics aloft in play this afternoon and could see additional showers and thunderstorms develop with a little heating. Will favor those coastal/near coastal counties for best chances of any afternoon development.

Thursday-Friday:
Ridging and a drier air mass behind the cool front will reside over the region. May have a hard time getting rid of the cloud cover on Thursday with better chances for breaks in the clouds on Friday. Moisture advection begins to return to the region late on Friday.

Weekend/Early Next Week:
A large upper level storm system currently over the Gulf of Alaska will move into the SW US and slow down as it runs up against strong high pressure over the eastern US. Still much uncertainty on where the main moist axis will set up this weekend as this location will feature a good chance of thunderstorms with heavy rainfall and flooding. Latest guidance has trended slightly westward with the position of the upper level low with the moist feed aimed across SC TX into NW TX which keeps SE TX on the eastern fringe of the highest rain chances and largest QPF. Potential remains for some big rains at some point in the Saturday-Tuesday period…leaning more toward Monday at the moment. Severe weather will also be possible especially with any thunderstorm complexes that move out of C or NW TX.

Overnight Storm Reports:

Weimar, Colorado: Tree limbs down and damage to roofs from fast moving bow echo.

Needville, Fort Bend: Quarter size hail

Needville, Fort Bend: 1.25 in hail.

Richmond, Fort Bend: dime size hail at FM 2977 and FM 762

Rosenberg, Fort Bend: dime size hail at US 59 and FM 2218

Katy, Fort Bend: nickel size hail in Cinco Ranch

Friendswood, Galveston: 1.0 in size hail

Webster, Harris: 1.0 in size hail

Galveston, Galveston: 47mph wind gust reported 8SE Galveston Is

Matagorda, Matagorda: 40mph wind gust recorded by hurricaneflow site

Galveston, Galveston: N jetty sustained at 47 g 52mph.

Surfside, Brazoria: 43mph gust at hurricanflow site

Bacliff, Galveston: 38mph at hurricaneflow site