A very moist environment was in place with deep easterly flow over the area. A weak disturbance helped storms to develop over Hudspeth county and cause flash flooding in Dell City.
Every event with a place to put it. 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 EPZ wrote it up.
A very moist environment was in place with deep easterly flow over the area. A weak disturbance helped storms to develop over Hudspeth county and cause flash flooding in Dell City.
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 El Paso, TX wrote its last area forecast discussion before the first event at Jul 30, 12:39 PM MST, 3 hours 21 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM
139 PM MDT FRI JUL 30 2010
.SYNOPSIS...
AN UPPER LEVEL LOW PRESSURE SYSTEM WILL COMBINE WITH THE FLOW OF
MOIST UNSTABLE TO BRING SHOWERS AND THUNDERSTORMS ACROSS SOUTHERN
NEW MEXICO AND WESTERN TEXAS THROUGH SUNDAY. A FEW STORMS MAY
PRODUCE HEAVY RAINS ALONG WITH FLOODING. NEXT WEEK HIGH PRESSURE
ALOFT WILL RESULT IN WARM MOSTLY DRY WEATHER.
&&
.DISCUSSION...
COMPLEX WEATHER SITUATION CONTINUES TO EVOLVE OVER THE
SOUTHWESTERN UNITED STATES WITH CHALLENGING FORECAST AHEAD. MODELS
AND SATELLITE DATA SUGGEST UPPER LOW HAS EVOLVED OVER NORTHWESTERN
MEXICO WITH VORTICITY AXIS EXTENDING NORTHWARD INTO WESTERN NEW
MEXICO. HOWEVER A SECOND WAVE/VORT AXIS EXTENDS EASTWARD SOUTH OF
THE CWA. UPPER LOW EXPECTED TO REFORM/TRANSLATE INTO ARIZONA ON
SATURDAY WITH SEVERAL WAVES POSSIBLE ROTATING NORTH FROM MEXICO
INTO THE CWA. THUS PERIODS OF DYNAMIC LIFTING ALOFT WILL OCCUR
INTO SATURDAY NIGHT.
REGIONAL PATTERN WILL ALSO INCLUDE THERMAL SURFACE LOW OVER
WESTERN ARIZONA WITH THIS FEATURE BECOMING ALMOST COLLOCATED WITH
UPPER LOW BY SATURDAY AFTERNOON. TO THE EAST SURFACE HIGH WILL
ALSO BECOME ESTABLISHED BENEATH HIGH PRESSURE ALOFT. OVERALL
PRESSURE/HEIGHT CONFIGURATION WILL INDUCE LOW TO MID LEVEL
SOUTHEAST TO SOUTHWEST FLOW WITH ABUNDANT MOISTURE TRANSPORT FROM
BOTH GULF OF MEXICO AND GULF OF CALIFORNIA. THUS COPIOUS AMOUNTS
OF WATER VAPOR WILL COVER THE CWA WITH PRECIPITABLE WATER FROM
1.4 TO 1.6 INCHES MOST AREAS THROUGH SATURDAY AFTERNOON. DESPITE
CLOUDS AIR MASS WILL BE MODERATELY UNSTABLE WITH LITTLE CONVECTIVE
INHIBITION AND CAPES AROUND 1000 J/KG IN THE AFTERNOON. FINALLY
WIND PROFILES WILL EXHIBIT LOW WIND SPEEDS AND LITTLE SHEAR WITH
HEIGHT SUGGESTING SLOW MOVING OR BACK BUILDING CELLS. ALL THESE
INGREDIENTS INDICATE RISK OF HEAVY RAINS AND FLOODING THROUGH
SATURDAY EVENING.
STILL EXPECT UPPER RIDGE TO THE EAST TO EXPAND WESTWARD ACROSS
THE CWA BEGINNING SUNDAY. THUS RAIN THREAT WILL DIMINISH EARLY
NEXT WEEK WITH WARM MOSTLY DRY WEATHER FORECASTED LATER PERIODS.
&&
.AVIATION...VALID 31/00Z-01/00Z
SCATTERED TO WIDESPREAD TSRA CAN BE EXPECTED OVER MOST OF THE CWA
AS AN UPPER LEVEL LOW PRESSURE SYSTEM OVER SOUTHERN NMEX CONTINUES
TO GRADUALLY MOVE WESTWARD AND THEN WILL EVENTUALLY MOVE BACK OVER
OUR AREA ON SATURDAY. BASIC SKY CONDITIONS AGL: SCT-BKN040-060
100-140 AND BKN TO OVC 200-250. SCT MVFR/IFR CONDS IN TSRA WITH
CONDS NR STORMS: VRB25G35KT 3SM +TSRAGS BKN020CB OVC060. SVR TURBC
WITHIN 10 MI OF CB. WINDOW FOR MOST PRECIPITATION IS FROM 00Z TO 12Z.
MOIST UNSTABLE AIR CONTINUES TO FLOW INTO SOUTHERN NEW MEXICO AND
FAR WEST TEXAS. A SLOW MOVING LOW PRESSURE SYSTEM ALOFT OVER SOUTHERN
NEW MEXICO IS SLOWLY TRACKING WEST. THIS COMBINATION WILL KEEP AN
UNSETTLED WEATHER PATTERN OVER THE FIRE WEATHER ZONES. SCATTERED
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA
AGAIN TODAY AND TONIGHT WITH LOCALLY HEAVY RAINS POSSIBLE AND SOME
LOW LOW AREA AND STREAM FLOODING ESPECIALLY WEST OF THE RIO GRANDE
THROUGH THE WEEKEND...AS THE UPPER LOW SLOWLY CURVES NORTH ACROSS
THE BOOTHEEL AND GILA. HIGH PRESSURE ALOFT WILL START TO PUSH
WESTWARD INTO SOUTHERN NEW MEXICO NEXT WEEK BRINGING WARM AND MOSTLY
DRY WEATHER. MIN RH VALUES WILL RANGE FROM 40% TO 45% LOWLANDS TO
THE 50% TO 60% RANGE ABOVE 7000 FEET MSL WITH THE HAINES INDEX
STAYING IN THE 2 AND 3 CATEGORY FOR TODAY AND SATURDAY.
&&
.PRELIMINARY POINT TEMPS/POPS...
EL PASO 70 88 72 94 72 / 40 50 40 20 20
SIERRA BLANCA TX 64 84 65 90 64 / 40 30 30 20 10
LAS CRUCES 68 87 69 93 69 / 40 40 40 20 20
ALAMOGORDO 64 89 66 94 64 / 40 40 30 20 20
CLOUDCROFT 50 67 51 71 49 / 40 40 30 20 20
TRUTH OR CONSEQUENCES 66 86 65 92 65 / 50 50 40 30 20
SILVER CITY 59 77 59 83 57 / 60 60 60 40 30
DEMING 65 86 66 92 66 / 50 50 50 30 20
LORDSBURG 65 86 65 93 64 / 60 60 60 40 30
&&
.EPZ WATCHES/WARNINGS/ADVISORIES...
NM...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR NMZ022>025-
030>032.
TX...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR TXZ055-056.
&&
05 ROGASH/20 NOVLANHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM 1025 AM MDT FRI JUL 30 2010 NMZ022>025-030>032-TXZ055-056-311700- SOUTHWEST MOUNTAINS/LOWER GILA REGION-SIERRA COUNTY LAKES REGION- TULAROSA BASIN/SOUTHERN DESERT-SOUTHERN SACRAMENTO MOUNTAINS- SOUTHWEST DESERT/BOOTHEEL-SOUTHWEST DESERT/MIMBRES BASIN- SOUTHERN DESERT-EL PASO-HUDSPETH- 1025 AM MDT FRI JUL 30 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL NEW MEXICO...SOUTHWEST NEW MEXICO AND SOUTHWEST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE FORECAST THIS AFTERNOON AND TONIGHT. A FEW STORMS WILL PRODUCE VERY HEAVY RAINFALLS WITH OVER 2 INCHES OF RAIN FALLING OVER ISOLATED LOCATIONS. THUS FLASH FLOODING IS POSSIBLE. ISOLATED STORMS MAY ALSO PRODUCE STRONG GUSTS TO 50 MPH AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ON SATURDAY AND SATURDAY NIGHT WITH LOCALLY HEAVY RAINS...HAIL AND GUSTY WINDS POSSIBLE. ISOLATED STORMS MAY DROP OVER 2 INCHES OF RAIN WITH FLASH FLOODING POSSIBLE. SCATTERED SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINS WILL OCCUR MAINLY WEST OF THE RIO GRANDE SUNDAY WITH A FEW SHOWERS AND THUNDERSTORMS EAST. MOSTLY DRY TUESDAY THROUGH THURSDAY WITH ONLY A SLIGHT CHANCE OF AFTERNOON AND EARLY EVENING THUNDERSTORMS EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY THROUGH SATURDAY...ESPECIALLY TO MONITOR FOR FLASH FLOODING. ROGASH
The El Paso radar (KEPZ), 137 km away, was scanning. The volume nearest the first event began at 23:00 UTC.
1 flash flood. Local standard time, as filed.
Hudspeth County Herald reported one to two inches of rain fell quickly in Dell City causing the city's roads to become flooded.
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, July 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: 251281.