A slow moving coastal low produced heavy rains that flooding several roads in the Palacios area.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HGX wrote it up.
A slow moving coastal low produced heavy rains that flooding several roads in the Palacios area.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before the first event at Jan 15, 5:12 AM CST, 8 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
512 AM CST FRI JAN 15 2010
.DISCUSSION...
NEED TO ADDRESS THE HEAVY RAIN OVER SOUTHERN JACKSON AND MATAGORDA
COUNTY. PALACIOS ASOS IS REPORTING 2.65 INCHES OF RAIN SINCE
YESTERDAY BUT THE RADAR STORM TOTAL PRECIP IS SHOWING ALMOST 8
INCHES. THE RADAR WAS USING A ZR RELATIONSHIP MORE SUITED FOR
SUMMER. THE ZR HAS BEEN CHANGED TO REFLECT STRATIFORM RAIN. THE
RADAR STP IS OVER ESTIMATING RAINFALL AMOUNTS AND DOES NOT REFLECT
WHAT HAS FALLEN OVERNIGHT. 43
&&
.PREV DISCUSSION... /ISSUED 336 AM CST FRI JAN 15 2010/
DISCUSSION...
AN AREA OF HEAVY RAIN IS AFFECTING PARTS OF MATAGORDA...WHARTON
AND JACKSON COUNTIES EARLY THIS MORNING. DUE TO THE HEAVY RAIN AND
THE POTENTIAL FOR ADDITIONAL RAIN THIS MORNING...FEEL IT IS BEST
TO KEEP A FLOOD WATCH IN EFFECT OVER THESE COUNTIES THIS MORNING.
ELSEWHERE...THE RAIN HAS BEEN SCATTERED AND CONSIDERABLY LIGHTER.
THE BEST LOW LEVEL CONVERGENCE FAVORS THE SOUTHWEST ZONES THIS
MORNING AND THIS IS WHERE THE BEST MOISTURE AXIS IS LOCATED. HAVE
LOWERED POPS OVER THE NORTH AND CENTRAL ZONES AS LIFT AND
CONVERGENCE NEVER REALLY GETS IN PHASE. IN ADDITION...MOISTURE
SHIFTS EAST AROUND DEVELOPING LOW PRESSURE OVER THE GULF. IT WILL
BE BREEZY ALONG THE IMMEDIATE COAST TODAY AS THE GRADIENT TIGHTENS
AROUND THE DEVELOPING GULF LOW.
FORCING FROM THE UPPER LOW OVER NORTHERN MEXICO SHOULD KEEP
PERIODS OF LIGHT RAIN GOING THROUGH EARLY SATURDAY. RAIN SHOULD
END FROM WEST TO EAST ON SATURDAY. WEAK HIGH PRESSURE WILL BUILD
INTO TEXAS SUNDAY AND MONDAY AND SHIFT EAST ON TUESDAY. FIRST PART
OF NEXT WEEK LOOKS NICE WITH TEMPS A BIT WARMER THAN NORMAL. A
WEAK UPPER LEVEL TROUGH COUPLED WITH AN INCREASE IN MOISTURE WILL
BRING A CHANCE OF RAIN BACK TO THE AREA ON TUESDAY AND WEDNESDAY.
HIGH PRESSURE WILL BUILD BACK INTO THE THURSDAY AND FRIDAY. 43
CLIMATE...
YESTERDAY WAS THE FIRST DAY OF 2010 TO HAVE AN AVERAGE DAILY
TEMPERATURE ABOVE NORMAL. THE NEXT COUPLE OF WEEKS LOOK TO BE NEAR
OR SLIGHTLY WARMER THAN THE CLIMATOLOGICAL AVERAGES. 43
MARINE...
A COASTAL LOW IS EXPECTED TO FORM OFF THE S TX COAST AND MOVE
NORTHEASTWARD LATER TODAY. UNTIL THEN...THERE WILL BE A FAIRLY TIGHT
GRADIENT BETWEEN THE HIGH PRESSURE AREA TO THE NORTH AND THE
DEVELOPING LOW TO THE SOUTH. THIS GRADIENT WILL BE THE MAIN REASON
FOR THE SMALL CRAFT ADVISORY CONDITIONS EARLY THIS MORNING. THE
GRADIENT SHOULD INCREASE A BIT AS THE LOW APPROACHES THE MID AND
UPPER TEXAS COASTAL AREAS. AS THAT OCCURS...GALE FORCE WIND GUSTS
MAY OCCUR. ADVISORY CONDITIONS ARE EXPECTED TO END BY SATURDAY
EVENING.
THE STRONG EAST TO NORTHEAST WINDS WILL ALSO HAVE AN ADVERSE AFFECT
UPON THE TIDES. STILL THINK THAT THE TIDE LEVELS WILL STAY BELOW 3.3
FEET.
40
&&
.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 58 45 57 39 66 / 60 60 30 10 10
HOUSTON (IAH) 59 45 58 41 65 / 70 60 60 10 10
GALVESTON (GLS) 59 48 58 48 62 / 80 60 60 10 10
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...FLOOD WATCH UNTIL 3 PM CST THIS AFTERNOON FOR THE FOLLOWING
ZONES: COLORADO...JACKSON...MATAGORDA...WHARTON.
GM...SMALL CRAFT ADVISORY UNTIL 6 AM CST SATURDAY FOR THE FOLLOWING
ZONES: GALVESTON BAY...MATAGORDA BAY.
SMALL CRAFT ADVISORY UNTIL 8 AM CST SATURDAY FOR THE FOLLOWING
ZONES: WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL
OUT 20 NM...WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM.
SMALL CRAFT ADVISORY UNTIL 6 PM CST SATURDAY FOR THE FOLLOWING
ZONES: WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL
20 NM TO 60 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 TO
60 NM.
&&
DISCUSSION...43The Houston radar (KHGX), 137 km away, was scanning. The volume nearest the first event began at 11:18 UTC.
1 flash flood. Local standard time, as filed.
Area roads around St. Mary's Street, Vietnam Street and St. Joseph's street were impassable due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2010Every state in 2010This day in weather historyWarnings in Texas, January 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 211994.