Isolated showers and thunderstorms across the region, dropped significant rain across small areas of the region, which helped to alleviate drought conditions slightly across portions of the Rio Grande Valley and Deep South Texas. Portions of Jim Hogg County received 4 to 6 inches of rainfall on July 13th, although this did little to alleviate drought conditions in the county.
Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
Isolated showers and thunderstorms across the region, dropped significant rain across small areas of the region, which helped to alleviate drought conditions slightly across portions of the Rio Grande Valley and Deep South Texas. Portions of Jim Hogg County received 4 to 6 inches of rainfall on July 13th, although this did little to alleviate drought conditions in the county. Despite the rainfall, there was little improvement to overall drought conditions.
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 Jun 30, 11:57 PM CST, 3 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BROWNSVILLE TX 1257 AM CDT SUN JUL 1 2012 .DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW. && .AVIATION...CURRENT RADAR IMAGES AND SURFACE OBSERVATIONS INDICATE SHOWERS PERSISTING ACROSS THE MID TO LOWER VALLEY EARLY THIS MORNING. A FEW THUNDERSTORMS CONTINUE SOUTH OF THE RIO GRANDE RIVER AND OVER THE COASTAL WATERS...BUT NOT EXPECTED TO IMPACT THE TAF SITES OVERNIGHT. 500MB LOW ACROSS THE AREA WILL CONTINUE TO BRING DEEP LOW TO MID LEVEL MOISTURE ACROSS THE RIO GRANDE VALLEY TODAY. VFR CONDITIONS EXPECTED TO PREVAIL OVERNIGHT BEFORE SHOWERS AND THUNDERSTORMS DEVELOP LATER THIS MORNING. EXPECT MVFR CEILINGS AND/OR VISIBILITIES WITH SHOWERS AND THUNDERSTORMS IN THE VICINITY LATER TODAY.. && .PREV DISCUSSION... /ISSUED 913 PM CDT SAT JUN 30 2012/ DISCUSSION...WATER VAPOR SATELLITE IMAGES AND NAM40 500MB HEIGHT ANALYSIS INDICATE AN UPPER LEVEL LOW ACROSS NORTHEAST MEXICO AND THE WESTERN PORTIONS OF THE RIO GRANDE VALLEY THIS EVENING. RADAR IMAGES FINALLY INDICATE RAIN DIMINISHING IN COVERAGE ACROSS THE WESTERN PORTIONS OF THE CWA WHERE DOPPLER RADAR ESTIMATES AT LEAST 10 INCHES OF RAIN HAVE FALLEN ACROSS THE FALCON RESERVOIR. HOWEVER...SHOWERS APPEAR TO BE REDEVELOPING ACROSS EXTREME NORTHEAST MEXICO AS WELL AS OFFSHORE THE LOWER TEXAS COAST AND ALONG THE MEXICAN COAST. THESE AREAS OF RAINFALL WILL LIKELY MOVE NORTHWEST ACROSS THE RIO GRANDE VALLEY LATE TONIGHT. HAVE ADJUSTED POPS SLIGHTLY HIGHER TONIGHT AND SUNDAY TO REFLECT THE TROPICAL LIKE RAINFALL THAT HAS FALLEN ACROSS THE AREA. PREV DISCUSSION... /ISSUED 702 PM CDT SAT JUN 30 2012/ DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW. AVIATION...SATELLITE AND RADAR IMAGES AS WELL AS SURFACE OBSERVATIONS INDICATE SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ACROSS THE WESTERN PORTIONS OF THE CWA THIS EVENING WHILE THE CONVECTION ACROSS THE EASTERN PORTIONS APPEARS TO BE FINALLY WEAKENING. 500MB LOW ACROSS THE AREA WILL CONTINUE TO BRING DEEP LOW TO MID LEVEL MOISTURE ACROSS THE RIO GRANDE VALLEY TONIGHT INTO SUNDAY. EXPECT MVFR CONDITIONS WITH SHOWERS AND THUNDERSTORMS IN THE VICINITY THIS EVENING. OTHERWISE...VFR CONDITIONS WILL PREVAIL TONIGHT BEFORE SHOWERS AND THUNDERSTORMS DEVELOP SUNDAY MORNING. EXPECT MVFR CEILINGS AND/OR VISIBILITIES WITH SHOWERS AND THUNDERSTORMS IN THE VICINITY ON SUNDAY. PREV DISCUSSION... /ISSUED 143 PM CDT SAT JUN 30 2012/ SHORT TERM /NOW THROUGH SUNDAY NIGHT/...SQUALL LINE RACING SOUTHWARD ACROSS THE COASTAL COUNTIES PRODUCED WIND GUSTS OF 35 TO 45KTS AS IT PASSED KHRL AND KBRO. DEEP MOISTURE AND IMPRESSIVE INSTABILITY HAVE KEPT THUNDERSTORM INVIGORATED...BUT STORMS HAVE NOT HAD QUITE THE HOLDING POWER DUE TO WEAK AND VARIABLE WINDS UP TO 25000 FEET. THE OUTFLOW BOUNDARY HAS STABILIZED THE REGION IN ITS WAKE FOR THE TIME BEING...BUT AREAS FURTHER INLAND HAVE SEEN LITTLE CLOUD COVER AND REMAIN UNSTABLE. SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED FOR THESE REGIONS THROUGH SUNSET. PRECIPITATION IS STILL EXPECTED TO CONTINUE THROUGH THE NEXT 36 HOURS DUE TO THE MID LEVEL LOW CURRENTLY OVERHEAD MOVING SLOWLY WESTWARD INTO MEXICO. CHANCES REMAIN ISOLATED FOR ALL AREAS THROUGH SUNDAY NIGHT. HIGHS TOMORROW WILL AGAIN REACH THE MID 90S TO AROUND 100. LONG TERM /MONDAY THROUGH SATURDAY MORNING/...TROPICAL AIR MASS CHARACTERISTICS WILL PERSIST OVER THE CWA ON MONDAY...BUT AS H5 RIDGING AND SURFACE HIGH PRESSURE COME TO DOMINATE THE GULF OF MEXICO...MUCH OF THE UPCOMING WEEK WILL SEE SEASONAL WEATHER. TEMPS WILL BE NEAR TO SLIGHTLY ABOVE NORMAL WITH A MODERATE ONSHORE WIND. COASTAL SHOWERS WILL KEEP ISOLATED POPS IN THE FORECAST. MARINE... TONIGHT THROUGH SUNDAY NIGHT...MARINE CONDITIONS ARE AGITATED AT THE MOMENT DUE TO THE SQUALL LINE PRODUCING GUSTY NORTH WINDS. AS THE LINE MOVES SOUTH AWAY FROM THE NW GULF...WINDS WILL SHIFT BACK TO THE SOUTHEAST AND RUN 15 TO 20 KNOTS. EXERCISE CAUTION WORDING IS EXPECTED...WITH POSSIBLE ADVISORIES FOR THE GULF WATERS LATE TONIGHT INTO TOMORROW WHEN WINDS REACH AROUND 20 KNOTS. SEAS WILL HOVER AROUND 3 TO 4 FEET THROUGH THE PERIOD. MONDAY THROUGH THURSDAY MORNING...THE LARGE SCALE PATTERN WILL BE DOMINATED BY SURFACE HIGH PRESSURE OVER MUCH OF THE GULF. TROPICAL MOISTURE WILL MOVE NORTH FROM THE SOUTHWEST GULF ON THE SYNOPTIC SCALE SOUTHEAST WINDS...PRODUCING PERIODS OF MARINE SHOWERS...BUT OTHERWISE EXPECT MODERATE SOUTHEAST WINDS AND MODERATE SEAS... EXCEPT FOR MONDAY WHEN WINDS AND SEAS WILL BE SLIGHTLY HIGHER AND POSSIBLY IN EXERCISE CAUTION TERRITORY. && .PRELIMINARY POINT TEMPS/POPS... BAYVIEW/PORT ISABEL 78 92 79 92 / 20 10 0 10 BROWNSVILLE 78 92 77 92 / 20 10 0 10 HARLINGEN 77 95 76 93 / 20 10 0 10 MCALLEN 78 95 76 96 / 20 10 0 10 RIO GRANDE CITY 78 96 77 97 / 20 10 0 10 SOUTH PADRE ISLAND 79 90 80 90 / 20 10 10 10 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT: HTTP://WEATHER.GOV/RGV 63/66
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BROWNSVILLE TX 1023 PM CDT SAT JUN 30 2012 TXZ248>257-020330- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 1023 PM CDT SAT JUN 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP TONIGHT. LOCALLY HEAVY RAINFALL IS POSSIBLE...PRODUCING MINOR FLOODING. THERE IS A MODERATE RISK OF RIP CURRENTS AT THE BEACHES OF SOUTH PADRE ISLAND AND AT BOCA CHICA BEACH. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP SUNDAY. LOCALLY HEAVY RAINFALL IS POSSIBLE...PRODUCING MINOR FLOODING. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED. GMZ130-132-135-150-155-170-175-020330- 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- 1023 PM CDT SAT JUN 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE GULF OF MEXICO AND THE LAGUNA MADRE. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
744 PM CDT SAT JUN 30 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0743 PM FLASH FLOOD 1 NE FALCON DAM 26.56N 99.12W
06/30/2012 STARR TX LAW ENFORCEMENT
WATER OVER HIGHWAY 83 NEAR FALCON DRIVE.
&&
EVENT NUMBER BRO1200140
JGGPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1029 PM CDT SAT JUN 30 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM FLASH FLOOD 3 NW BROWNSVILLE 25.96N 97.52W
06/30/2012 CAMERON TX TRAINED SPOTTER
SPOTTER REPORTS WATER IN THE STREETS AND RESACAS OUT OF
THEIR BANKS AND OVER WALLS. FIVE INCHES OF RAIN TODAY.
0559 PM FLASH FLOOD 2 NW BROWNSVILLE 25.95N 97.50W
06/30/2012 CAMERON TX NWS EMPLOYEE
PRICE ROAD IMPASSIBLE WITH AT LEAST A FOOT OF WATER
OVER IT IN WESTERN BROWNSVILLE.
0630 PM FLASH FLOOD 6 SE ZAPATA 26.83N 99.19W
06/30/2012 ZAPATA TX LAW ENFORCEMENT
WATER IS COMPLETELY OVER HIGHWAY 83 AT LOPENO.
0643 PM FLASH FLOOD BROWNSVILLE 25.93N 97.48W
06/30/2012 CAMERON TX EMERGENCY MNGR
WATER IN A FEW HOMES IN DOWNTOWN BROWNSVILLE. RESACAS
GETTING HIGH. PRICE ROAD MOSTLY CLOSED...BOCA CHICA
CLOSED IN A FEW SPOTS. A FEW OTHER STREETS CLOSED.
0743 PM FLASH FLOOD 1 NE FALCON DAM 26.56N 99.12W
06/30/2012 STARR TX LAW ENFORCEMENT
WATER OVER HIGHWAY 83 NEAR FALCON DRIVE.
&&
EVENT NUMBER BRO1200136 BRO1200137 BRO1200138 BRO1200139 BRO1200140
CASTILLOThe national radar mosaic for the moment the first event began.
8 drought. Local standard time, as filed.
Spotty rainfall maintained Moderate (D1) drought conditions east of Highway 77 and Severe (D2) drought conditions west of Highway 77 until mid month; Severe (D2) conditions would spread across nearly all of Kenedy County for the second half of July.
Spotty rainfall, from seabreeze convection, maintained Moderate (D1) drought conditions generally east of Highway 77 and Severe (D2) drought conditions west of Highway 77.
July would begin with all of coastal Cameron County in Severe (D2) Drought, but effects from rainfall on June 30th would kick in to the Drought Monitor by July 3rd, with several inches of rain in locations from Laguna Atascosa to South Padre Island resulting in drought conditions improving to Moderate (D1). These conditions would continue through month's end but deteriorate once again as little additional rain fell after the 1st.
Despite showers and thunderstorms at the end of June and infrequently along the sea breeze, Severe (D2) Drought continued west of Highway 77 and Moderate (D1) drought conditions persisted east of Highway 77. Across the far southern portion of the county, nearly 1.75 inches of rain fell, maintaining the Moderate (D1) drought conditions early in the month; little additional rain would expand the Severe Drought across the entire County by July 31st.
Despite spotty showers, little change occurred to drought conditions in Brooks County during July. during the first half of July across Brooks County. Severe (D2) Drought conditions persisted across all but the northern sliver of the County through the month; locations along State Highway 285 held in Extreme (D3) Drought.
Little change in drought conditions was observed across Jim Hogg County during July, despite significant rainfall of 4 to 6 inches across portions of rural western Jim Hogg County. The county remained split into thirds, with the southern third of the county in Moderate (D1) Drought, the middle third in Severe (D2) Drought, and the northern third of the county in Severe (D2) to Extreme (D3) Drought, including the city of Hebbronville.
Severe Drought (D2) conditions continued across the northern third of Zapata County. Moderate (D1) conditions continued across much of the remainder of the county, with a small area of D0 conditions pushing into the southern tip of the county. These conditions would improve after mid month rains, and the entire county would be removed from Severe or greater drought conditions, dropping to Abnormally Dry (D0) to Moderate for the last week of the month.
Moderate Drought (D1) prevailed over all but a couple of slivers of eastern Hidalgo County (Weslaco-Mercedes) and extreme northern portions through July 16th. Limited rainfall would see Severe (D2) Drought engulf the County by the middle of July. Despite spotty showers across Deep South Texas and the Rio Grande Valley, Hidalgo County did not see much, with the ASOS at McAllen Miller International Airport recording only 0.03 inches of rain during the first two weeks of the month.
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, July 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: 404762, 404768, 404772, 404773, 404774, 404775, 404777, 404780.