A weak Pacific low pressure system brought breezy conditions to much of the Mojave Desert. One high wind gust was reported.
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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 VEF wrote it up.
A weak Pacific low pressure system brought breezy conditions to much of the Mojave Desert. One high wind gust was reported.
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 Las Vegas, NV wrote its last area forecast discussion before the first event at Sep 14, 2:35 PM MST, 22 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 235 PM PDT MON SEP 14 2009 .SYNOPSIS...LOW PRESSURE MOVING ACROSS CENTRAL NEVADA WILL BRING BREEZY AND COOLER CONDITIONS TO THE AREA THROUGH TUESDAY. SHOWER AND THUNDERSTORM ACTIVITY WILL BE LARGELY CONFINED TO PORTIONS OF LINCOLN AND MOHAVE COUNTIES AS THE LOW MOVES EAST. THE STORM WILL HAVE DECREASING INFLUENCE BY MID WEEK AND HIGH PRESSURE IS EXPECTED TO REGAIN CONTROL...BRINGING WARMER AND DRIER WEATHER TO THE REGION THROUGH THE WEEKEND. && .SHORT TERM...AN AREA OF LOW PRESSURE WILL CONTINUE ACROSS CENTRAL NEVADA THIS AFTERNOON AND TONIGHT AND IS FORECAST TO BE CENTERED OVER UTAH ON TUESDAY. IT THEN SLOWLY SLIDES SOUTH INTO ARIZONA WEDNESDAY AND THEN EAST TO NEW MEXICO THURSDAY. ALTHOUGH MODEL AGREEMENT APPEARS TO BE FAIRLY GOOD WITH THIS GENERAL SCENARIO... THE LOCATION AND EXACT TRACK OF THE LOW OVER THE NEXT FEW DAYS WILL DETERMINE TO WHAT EXTENT THE AREA WEATHER IS AFFECTED. THROUGH THE REST OF THE AFTERNOON...THUNDERSTORM ACTIVITY SHOULD CONTINUE TO FOCUS OVER NORTHERN LINCOLN COUNTY AND POSSIBLY CENTRAL AND NORTHERN MOHAVE AHEAD OF THE TROUGH AXIS WHICH IS NOW SHIFTING INTO SOUTHERN NEVADA. A SMALL EMBEDDED DISTURBANCE AND A 60KT JET ASSOCIATED WITH THE TROUGH SHOULD CONTINUE TO PROVIDE LARGE SCALE LIFT...BUT MAINLY OVER LINCOLN COUNTY. COOLER CONDITIONS HAVE CERTAINLY MOVED INTO THE REGION TODAY AND THIS MORNINGS DOWNWARD ADJUSTMENTS LOOKS LIKE THEY ARE WORKING OUT FAIRLY WELL. AS THE LOW BASICALLY STOPS MOVING AND MEANDERS AROUND UTAH TOMORROW...MOISTURE COULD WRAP AROUND THE LOW AND AFFECT AREAS IN LINCOLN AND MOHAVE COUNTIES. SMALLER CHANCES ON WEDNESDAY AND THURSDAY AS THE LOW MOVES SOUTH AND EAST. TEMPERATURES SHOULD REMAIN BELOW NORMAL ONE MORE DAY...ESPECIALLY ALONG THE EASTERN CWA BUT WILL LIKELY BE BACK NEAR OR SLIGHTLY ABOVE NORMAL BY WEDNESDAY. .LONG TERM...LONG TERM CONTINUES TO LOOK DRY AND WARM AS MODELS STILL EXPECT HIGH PRESSURE TO NOSE IN FROM THE WEST. LATEST MODEL RUNS ARE A BIT SLOWER IN BRINGING IN THE RIDGE AND ALSO HAVE THE HEIGHT CENTER FURTHER NORTH. DID LOWER TEMPERATURES A TAD FOR THE WEEKEND BUT IT STILL APPEARS WE WILL BE WELL ABOVE NORMAL. OTHERWISE MADE MINIMAL CHANGES TO THE ON GOING FORECAST OF DRY...LIGHT WINDS...LITTLE CLOUD COVER...AND WARM TEMPERATURES. && .AVIATION...FOR MCCARRAN...WINDS WILL SUBSIDE EARLY THIS EVENING BUT WILL START SHIFTING TO THE WEST AS THE NIGHT PROGRESSES. BY LATE TUESDAY MORNING WINDS WILL GO OVER TO THE NORTHEAST TO EAST FOR THE REST OF THE DAY IN THE 5 TO 10 KNOT RANGE. FOR THIS AFTERNOON THUNDERSTORMS ARE POSSIBLE AT THE NORTH END OF THE MORMON MESA CORRIDOR. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...GUSTY WINDS FROM THE SOUTH TO SOUTHWEST WILL CONTINUE THROUGH THE AFTERNOON AND EARLY EVENING. TUESDAY WILL SEE LIGHTER WINDS RANGING FORM THE NORTHEAST TO EAST. CLOUD COVER WILL BE MINIMAL TO CLEAR TUESDAY AS WELL. THUNDERSTORMS WILL OCCUR IN NORTHERN LINCOLN AND MOHAVE COUNTIES THIS AFTERNOON. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && SALMEN/JACQUES HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 257 AM PDT MON SEP 14 2009 AZZ001-003-NVZ015-150700- NORTHWEST PLATEAU-NORTHWEST DESERTS-LINCOLN COUNTY- 257 AM PDT MON SEP 14 2009 /257 AM MST MON SEP 14 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED TODAY AND TONIGHT...ALONG WITH LOCALLY BREEZY CONDITIONS. HAZARDOUS WEATHER IS NOT LIKELY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO TUESDAY AND POSSIBLY WEDNESDAY...THEN A DRYING AND WARMING TREND IS EXPECTED TOWARD THE END OF THE WEEK. THE PROBABILITY OF HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. HOWEVER...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ002-036-CAZ519>527-NVZ014-016>022-150700- LOWER COLORADO RIVER VALLEY-LAKE MEAD NATIONAL RECREATION AREA- EASTERN SIERRA SLOPES-OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY- DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT- EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN- SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY- ESMERALDA AND CENTRAL NYE COUNTY-NORTHEAST CLARK COUNTY- WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE- SPRING MOUNTAINS-LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY- 257 AM PDT MON SEP 14 2009 /257 AM MST MON SEP 14 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY OF HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. HOWEVER...SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER ACCORDING TO STANDARD OPERATING PROCEDURES. MORGAN
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
This gust occurred at Pipe Spring National Monument.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2009Every state in 2009This day in weather historyWarnings in Arizona, September 2009
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: 192036.