Tornado Warning 17, NWS Houston/Galveston, TX

039 
WWUS54 KHGX 132045
SVSHGX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
345 PM CDT WED MAY 13 2015

TXC239-481-132100-
/O.CON.KHGX.TO.W.0017.000000T0000Z-150513T2100Z/
WHARTON TX-JACKSON TX-
345 PM CDT WED MAY 13 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
SOUTHWESTERN WHARTON AND NORTHEASTERN JACKSON COUNTIES...
    
AT 343 PM CDT...RADAR SHOWED THE SHOWER PRODUCING THE FUNNEL CLOUD 
WAS MOVING NORTH OF LAKE TEXANA. A TORNADO MAY DEVELOP AT ANY TIME. 
THIS DANGEROUS STORM WAS LOCATED NEAR GANADO...OR 9 MILES NORTHEAST 
OF EDNA...MOVING NORTH AT 20 MPH.

ANOTHER STRONGER SHOWER WAS DEVELOPING OVER THE SOUTHERN PART OF 
LAKE TEXANA. FUNNEL CLOUDS MAY DEVELOP WITH THIS SHOWER AS WELL.

LOCATIONS IMPACTED INCLUDE...
EDNA...GANADO AND CORDELE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

IF ON OR NEAR LAKE TEXANA...GET OUT OF THE WATER AND MOVE TO SAFE 
SHELTER IMMEDIATELY. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH 
TO BE STRUCK BY LIGHTNING. IN ADDITION...SEVERE THUNDERSTORMS CAN 
PRODUCE LARGE CAPSIZING WAVES...EVEN ON SMALL BODIES OF WATER. MOVE 
INTO DOCK AND SEEK SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN 
A THUNDERSTORM.

&&

LAT...LON 2924 9669 2923 9641 2898 9648 2899 9668
      2923 9671
TIME...MOT...LOC 2043Z 183DEG 16KT 2910 9658 

$$

40

404 
WWUS54 KHGX 132056
SVSHGX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
356 PM CDT WED MAY 13 2015

TXC239-481-132105-
/O.EXP.KHGX.TO.W.0017.000000T0000Z-150513T2100Z/
WHARTON TX-JACKSON TX-
356 PM CDT WED MAY 13 2015

...THE TORNADO WARNING FOR SOUTHWESTERN WHARTON AND NORTHEASTERN
JACKSON COUNTIES WILL EXPIRE AT 400 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
LEAGUE CITY .

LAT...LON 2924 9669 2923 9641 2898 9648 2899 9668
      2923 9671
TIME...MOT...LOC 2055Z 183DEG 16KT 2910 9658 

$$

40

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
128 PM CDT WED MAY 13 2015

.AVIATION...
COMPLEX SITUATION WITH LINE OF STORMS MOVING EAST INTO THE AREA
AND AMDAR SOUNDINGS SHOWING ONLY 81 FOR CONVECTIVE TEMPS. MOST OF
THE 12Z GUIDANCE SHOWS THIS LINE BECOMING MORE DISORGANIZED AS IT
MOVES INTO THE AREA AND SHIFTING NORTHEASTWARD WITH TIME. THIS
SHOULD FAVOR THE NORTHER AREAS AND TERMINALS CLL-UTS WITH HEAVIER
IMPACTS BETWEEN 19-22Z. THE LONE STANDOUT IS THE SPC/NCEP 4KM WRF
WHICH REORGANIZES THE LINE AS IT GETS INTO THE CENTRAL CORRIDOR
FROM UTS-IAH AT 21-23Z...BOTH WITH LOWER TO MUCH LOWER RAIN
CHANCES BY THE TIME IT GETS INTO THE LBX/GLS VICINITY. THIS SYSTEM
SHOULD DEPART THE AREA TO THE EAST THIS EVENING AND MVFR CIGS
SHOULD RETURN AND PERSIST MOST OF THE NIGHT FROM AROUND 04Z
THROUGH 14Z THEN BEGIN TO LIFT. DRIER PROFILES ALOFT TOMORROW MAY
BE MORE DRIVEN BY LOCAL INFLUENCES AND HEATING SO WOULD EXPECT
AFTERNOON BEFORE WIDELY SCATTERED TO SCATTERED COVERAGE TO
DEVELOPS.

45

&&

.PREV DISCUSSION... /ISSUED 756 AM CDT WED MAY 13 2015/

UPDATE...
WITH THE NEXT SHORTWAVE DISTURBANCE HEADING UP THE PIKE FROM
SOUTH CENTRAL TEXAS...HAVE INCREASED WESTERN CWA POPS A BIT WHILE
CONTINUING THE FLASH FLOOD WATCH THROUGH 7 PM THIS EVENING.
BE SAFE OUT THERE! 31

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      70  84  70  83  71 /  50  50  30  50  30
HOUSTON (IAH)              72  85  72  83  73 /  40  40  30  50  30
GALVESTON (GLS)            75  81  75  81  75 /  30  30  20  50  30

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING
     ZONES: AUSTIN...BRAZORIA...BRAZOS...BURLESON...CHAMBERS...
     COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...
     HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
     MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...
     WALLER...WASHINGTON...WHARTON.

GM...NONE.
&&

DISCUSSION...14
AVIATION/MARINE...45

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
653 AM CDT WED MAY 13 2015

TXZ200-213-214-227-237-238-141200-
BRAZORIA-CHAMBERS-FORT BEND-GALVESTON-HARRIS-LIBERTY-
653 AM CDT WED MAY 13 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

THESE COUNTIES HAVE RECEIVED VERY HIGH RAINFALL AMOUNTS IN A VERY
SHORT AMOUNT OF TIME AND CANNOT PICK UP MUCH MORE PRECIPITATION
UNTIL FLOODING OCCURS. ALTHOUGH HIGH RAINFALL IS NOT FORECAST...THE
FORECAST DOES CALL FOR A MODERATE TO HIGH CHANCE OF RETURNING
RAINFALL...ACCUMULATIONS OF UNDER AN INCH...THIS AFTERNOON AND
EVENING. MORE THAN AN INCH PER HOUR RATES WILL AGGRAVATE FLOODING
OVER THESE COMMUNITIES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

DAILY RAINFALL FORECASTS ARE FOR MODERATE TO LIKELY PROBABILITIES
EACH SUBSEQUENT DAY. PRIOR RAINFALL HAS SATURATED GROUNDS AND IT
WILL NOT TAKE VERY HIGH RAINFALL RATES TO INDUCE FLOODING.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED THROUGH THE WEEK.

TXZ163-164-176>179-195>199-210>212-226-235-236-141200-
AUSTIN-BRAZOS-BURLESON-COLORADO-GRIMES-HOUSTON-JACKSON-MADISON-
MATAGORDA-MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-
WASHINGTON-WHARTON-
653 AM CDT WED MAY 13 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

THESE COUNTIES HAVE RECEIVED HIGH RAINFALL AMOUNTS OVER THE PAST
FEW DAYS AND WILL BE MORE SUSCEPTIBLE TO REPEAT FLOODING WHEN RAIN
RETURNS. ALTHOUGH EXTREME RAINFALL IS DIFFICULT TO FORECAST...THE
FORECAST DOES CALL FOR A LIKELY CHANCE OF RETURNING RAINFALL TODAY
OR TONIGHT...WITH A CHANCE FOR ACCUMULATIONS OF GREATER THAN AN
INCH. GENERALLY ...MORE THAN TWO INCH PER HOUR RATES WILL AGGRAVATE
FLOODING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

DAILY RAINFALL FORECASTS ARE FOR MODERATE TO LIKELY PROBABILITIES
EACH SUBSEQUENT DAY. PRIOR RAINFALL HAS SATURATED GROUNDS AND IT
WILL NOT TAKE VERY HIGH RAINFALL RATES TO INDUCE FLOODING.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED THROUGH THE WEEK.