Limited rainfall (generally two inches or less), along with continued hot and breezy conditions in a month that typically sees the highest average rains (3 to 5 inches) across the western King Ranch and hunting grounds in Brooks County, deteriorated drought conditions to Exceptional (D4) for most of the county from the second week of September through month's end. Parts of western and…
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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 BRO wrote it up.
Limited rainfall (generally two inches or less), along with continued hot and breezy conditions in a month that typically sees the highest average rains (3 to 5 inches) across the western King Ranch and hunting grounds in Brooks County, deteriorated drought conditions to Exceptional (D4) for most of the county from the second week of September through month's end. Parts of western and southeastern Brooks County received less than one inch of rain, 3 to 4 inches below average.
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 Brownsville, TX wrote its last area forecast discussion before the first event at Sep 10, 11:32 PM CST, 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 1232 AM CDT TUE SEP 11 2012 .DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW. && .AVIATION...CALM AND VARIABLE WINDS WILL PREVAIL THROUGH THE NIGHT WITH VFR CONDITIONS AT THE 3 TAFS SITES. EXPECT IN THE EARLY MORNING HOURS A FEW TO SCATTERED CLOUD COVER WILL INCREASES AS MORE MOIST AIR MASS MIGRATES WEST. WINDS SHIFT SE AS THE DAY PROGRESSES WITH A FEW GUSTS IN THE AFTERNOON. WINDS DIMINISH AFTER SUNSET. && .PREV DISCUSSION... /ISSUED 618 PM CDT MON SEP 10 2012/ DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW. AVIATION...SURFACE HIGH PRESSURE EXTENDING SOUTHWEST ALONG THE TEXAS GULF COAST TO MAINTAIN A LIGHT NORTHEAST TO EAST FLOW AND VFR CONDITIONS ACROSS ALL OF DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY AIRPORTS TONIGHT AND TUESDAY MORNING. WINDS VEER SOUTHEAST BUT REMAIN LIGHT WITH GUSTS LESS THAN 20 KNOTS TUESDAY AFTERNOON AS THE HIGH MOVES EAST. PREV DISCUSSION... /ISSUED 128 PM CDT MON SEP 10 2012/ SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...HIGH PRESSURE OVER THE MID MISSISSIPPI AND OHIO VALLEYS WILL EXTEND BACK ACROSS THE NORTH GULF TO INFLUENCE LOCAL CONDITIONS IN THE SHORT TERM. THE CENTER OF THE HIGH WILL SHIFT EAST HOWEVER...CAUSING LIGHT TO MODERATE NORTH EAST WINDS TO VEER TO SOUTHEAST. WITH THE SLOWLY EVOLVING SYNOPTIC SITUATION...HAVE ABOVE AVERAGE TO HIGH CONFIDENCE IN THE CURRENT INHERITED FORECAST AND THUS KEPT CHANGES TO A MINIMUM. WITH MOISTURE BEGINNING TO RETURN AND CONTINUED LIGHT ONSHORE WINDS...MAINTAINED AN INHERITED 10 PERCENT HINT OF A WEAK SEA BREEZE ON TUESDAY...WITH A NARROW LINE OF SHOWERS POSSIBLY DEVELOPING FROM WILLACY NORTH INTO KENEDY COUNTY TUESDAY AFTERNOON. ONLY OTHER CHANGE WORTH MENTIONING IS A SLIGHT LOWERING OF TEMPERATURES TONIGHT. THIS TOOK INTO ACCOUNT THE TEMPS LAST NIGHT AND THE CONTINUED LOWER DEW POINTS UNDER MOSTLY CLEAR TO CLEAR SKIES. LONG TERM /WEDNESDAY THROUGH SUNDAY/...WEAK RIDGING ALOFT WILL BEGIN TO WEAK AS THE NEXT MIDLEVEL TROUGH SWEEPS ACROSS THE CENTRAL PLAINS. HOT AND MORE HUMID CONDITIONS RETURN FOR WEDNESDAY...WITH THE WESTERN VALLEY AGAIN APPROACHING RECORD HIGHS. WEAKNESS ALOFT...LIGHTER WINDS AND DEEPER GULF MOISTURE SHOULD ALLOW THE SEABREEZE TO FIRE A COUPLE SHOWERS THURSDAY IN ADVANCE OF THE NEXT FRONT. MODELS ARE STILL SOMEWHAT AT ODDS REGARDING THE FRONTAL PASSAGE FRIDAY THROUGH THE WEEKEND. THE LATEST GFS RUN MATCHES WHAT THE ECMWF OUTPUT YESTERDAY...BRINGING THE FRONT INTO TEXAS FRIDAY AND SLOWLY DRIFTING IT SOUTHEAST THROUGH DEEP SOUTH TEXAS BY SUNDAY MORNING. THE ECMWF IS NOW BACKING OFF THE FRONT GETTING ANY FARTHER THAN CENTRAL TEXAS...WITH THE ASSOCIATED MIDLEVEL TROUGH REACHING NO FARTHER SOUTH THAN IOWA. WHILE FRONTAL PASSAGE IS STILL SOMEWHAT UP IN THE AIR ATTM...MOISTURE POOLING AHEAD OF THE FRONT IS CONSISTENT AND DEEP...WHICH SHOULD ALLOW SHOWER ACTIVITY FROM ONE SOURCE OR ANOTHER FRIDAY THROUGH THE WEEKEND. HAVE CONTINUED WITH SLIGHT CHANCE FOR THE TIME BEING UNTIL A BETTER CONSISTENCY SHOWS UP...BUT GETTING MORE CONFIDENT IN SOME RAIN SOMETIME THIS WEEKEND. MARINE... TONIGHT THROUGH TUESDAY NIGHT...HIGH PRESSURE ACROSS THE NORTH GULF WILL MAINTAIN A LIGHT TO MODERATE ONSHORE FLOW. WINDS AT BUOY 020 ARE LIGHT EAST NORTHEAST WITH SEAS OF 2 TO 3 FEET THIS AFTERNOON WHILE WINDS ON THE LAGUNA MADRE ARE LIGHT NORTHEAST. LITTLE CHANGE EXPECTED THROUGH TUESDAY NIGHT EXCEPT WINDS WILL VEER TO SOUTHEAST AS THE HIGH PRESSURE CENTER OVER THE MID MISSISSIPPI AND OHIO VALLEYS SHIFTS EAST. WEDNESDAY THROUGH FRIDAY...CONSISTENT MODEST SOUTHEAST FLOW WILL DOMINATE THE LATTER HALF OF THE WEEK...RUNNING 10 TO 15 KNOTS. THIS WILL HAVE ONLY SLIGHT INFLUENCE ON SEAS...REMAINING 3 FEET OR LESS THROUGH THE FORECAST PERIOD. A COUPLE STREAMER SHOWERS MAY START TO SHOW UP AROUND THE DAWN TIME PERIOD THURSDAY...BUT CHANCES ARE TOO LOW TO PUT IN FORECAST YET. && .BRO WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT: HTTP://WEATHER.GOV/RGV 67/66
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 123 PM CDT MON SEP 10 2012 TXZ248>257-111830- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 123 PM CDT MON SEP 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. GMZ130-132-135-150-155-170-175-111830- LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO- LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT MANSFIELD TX- LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX- COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM- COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM- WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO 60 NM- WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO 60 NM- 123 PM CDT MON SEP 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE GULF OF MEXICO AND THE LAGUNA MADRE. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The national radar mosaic for the moment the first event began.
1 drought. Local standard time, as filed.
The majority of Brooks County deteriorated to Exceptional (D4) drought conditions, except for a small sliver along the south and southwest border, which remained in Extreme (D3) drought conditions through the end of September.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2012Every state in 2012This day in weather historyWarnings in Texas, September 2012
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: 413356.