906  
FXUS65 KVEF 012238  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
338 PM PDT TUE JUL 1 2025  
   
KEY MESSAGES
 
 
* FINAL DAY OF WIDESPREAD MODERATE HEAT RISK, AS TEMPERATURES DROP  
BELOW-NORMAL THROUGH THE REMAINDER OF THE WORK WEEK.  
 
* LIGHT SHOWER AND THUNDERSTORM CHANCES EXPECTED THROUGH THURSDAY  
ACROSS CENTRAL NYE, LINCOLN, CLARK, AND MOHAVE COUNTIES.  
 
* THUNDERSTORMS TODAY WILL BE UNLIKELY TO PRODUCE WETTING RAIN,  
WHICH WILL RESULT IN INCREASED WILDFIRE CONCERNS.  
 

 
 
   
DISCUSSION
 
TODAY THROUGH TUESDAY.  
 
TODAY IS FORECAST TO BE THE FINAL DAY OF WIDESPREAD MODERATE  
HEATRISK AND ABOVE-NORMAL TEMPERATURES. OF NOTE, CLOUD COVER OVER  
THE LAS VEGAS VALLEY THIS AFTERNOON HAS DAMPENED THE POTENTIAL FOR  
108 DEGREES (MAX TEMP FORECAST), WITH AN OBSERVED HIGH SO FAR TODAY  
AROUND 100 DEGREES. AN AREA OF LOW PRESSURE WILL PUSH INLAND ON  
WEDNESDAY, BRINGING LOWER HEIGHTS AND INCREASED MOISTURE - BOTH OF  
WHICH WILL WORK TO REDUCE TEMPERATURES ACROSS THE REGION THROUGH THE  
WORK WEEK. TEMPERATURES WILL REMAIN AT-OR-SLIGHTLY BELOW-NORMAL  
UNTIL THE WEEKEND, WHEN A GROWING AREA OF HIGH PRESSURE WILL RETURN  
TEMPERATURES TO ABOVE-NORMAL.  
 
AN AREA OF HIGH PRESSURE OVER THE FOUR CORNERS IS HELPING TO USHER  
MID-LEVEL MOISTURE FROM AN INCOMING PACIFIC LOW UP THE COLORADO  
RIVER VALLEY TODAY AND WEDNESDAY. PWATS WILL INCREASE TO AROUND  
1.00" IN EASTERN SAN BERNARDINO, SOUTHERN CLARK, AND MOHAVE  
COUNTIES. AS THIS OCCURS, EXPECT SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. DUE TO THE VERY DRY LOW LEVELS, DCAPE IS BETWEEN 1500  
AND 1800 J/KG ACROSS OUR FORECAST AREA. SO FAR TODAY, VIRGA SHOWERS  
OVER THE LAS VEGAS VALLEY PRODUCED SEVERAL GUSTS OVER 58 MPH,  
WARRANTING A SEVERE THUNDERSTORM WARNING. THIS WILL CONTINUE AS  
LIGHT SHOWERS AND ISOLATED THUNDERSTORMS CONTINUE TO PUSH NORTHWARD  
INTO LINCOLN AND SOUTH-CENTRAL NYE COUNTIES THROUGH THE EVENING AND  
OVERNIGHT PERIOD. CONVECTION RETURNS WEDNESDAY AFTERNOON AS THE  
CENTER OF THE PACIFIC LOW MOVES INLAND. EXPECT SHOWERS TO PRODUCE  
MORE RAINFALL WEDNESDAY THAN TODAY, AS MOISTURE SATURATES THE  
COLUMN. CONDITIONS WILL DRY OUT THURSDAY ONWARD AS A RIDGE OF HIGH  
PRESSURE SLOWLY GROWS OVER THE REGION.  
 
THUNDERSTORM ACTIVITY TODAY ACROSS PORTIONS OF SOUTHERN NYE,  
LINCOLN, AND MOHAVE COUNTIES WILL STRUGGLE TO PRODUCE WETTING RAINS  
(0.10 INCHES). AS SUCH, DRY LIGHTNING THAT OCCURS POSES A WILDFIRE  
THREAT. MEANWHILE, GUSTY SOUTH WINDS ACROSS ESMERALDA COUNTY COUPLED  
WITH SINGLE-DIGIT RELATIVE HUMIDITIES WILL INCREASE WILDFIRE  
CONCERNS IN THE SOUTHWESTERN GREAT BASIN. A RED FLAG WARNING IS OUT  
FOR THESE AREAS AS A RESULT UNTIL 8PM TONIGHT.  

 
 
   
FIRE WEATHER
 
RED FLAG WARNING IN EFFECT FOR NEVADA FIRE WEATHER  
ZONES 460, 461, AND 462 AND FOR ARIZONA FIRE WEATHER ZONE 101  
THROUGH 8 PM TONIGHT. MAIN CONCERNS FOR 461, 462, AND 101 WILL BE  
DRY LIGHTNING THIS AFTERNOON. MAIN CONCERNS FOR 101 WILL BE GUSTY  
SOUTH WINDS COUPLED WITH SINGLE-DIGIT RELATIVE HUMIDITIES. VERY DRY  
CONDITIONS WILL CONTINUE ACROSS ESMERALDA, INYO, AND SAN BERNARDINO  
COUNTIES THROUGH THE WEEK. MOISTURE WILL PEAK IN CENTRAL NYE,  
LINCOLN, CLARK, AND MOHAVE COUNTIES WEDNESDAY BEFORE DWINDLING  
THROUGH THE WORK WEEK. WIDESPREAD SINGLE-DIGIT RH EXPECTED BY FRIDAY  
AFTERNOON... COUPLED WITH BREEZY CONDITIONS AND INCREASED FIREWORK  
ACTIVITY WILL ELEVATE WILDFIRE CONCERNS.  

 
 
   
AVIATION...FOR HARRY REID...FOR THE 00Z FORECAST PACKAGE
 
LIGHT  
SHOWERS WITH ISOLATED LIGHTNING EXPECTED OVER THE NEXT COUPLE OF  
HOURS. MODERATE-TO-HIGH CHANCE OF AWW-LEVEL WINDS FROM VIRGA SHOWERS  
THAT FORM OVER THE TERMINAL. EXPECT GUSTS BETWEEN 40 AND 50 KTS ON  
APPROACH IN THE LAS VEGAS VALLEY IN ALL DIRECTIONS. OTHERWISE, WINDS  
ARE GUSTY AND SOUTH-SOUTHEASTERLY. EXPECT AN ADDITIONAL SOUTHEAST  
PUSH OF GUSTS AROUND SUNSET FROM STORMS IN ARIZONA BEFORE WINDS CALM  
OVERNIGHT. EXPECT SIMILAR CONDITIONS WEDNESDAY WITH SCT-BKN AOA 12  
KFT. TEMPERATURES WILL HOVER AROUND 100 DEGREES UNTIL 04Z.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...FOR THE 00Z FORECAST PACKAGE...LIGHT SHOWERS WITH  
ISOLATED LIGHTNING EXPECTED OVER THE NEXT COUPLE OF HOURS. EXPECT  
GUSTS BETWEEN 40 AND 50 KTS FROM VIRGA SHOWERS. WEDNESDAY AFTERNOON,  
CHANCES FOR LIGHT SHOWERS AND THUNDERSTORMS RETURN TO SOUTHERN  
NEVADA AND THE COLORADO RIVER VALLEY WITH LIGHTNING AND ERRATIC  
GUSTY WINDS POSSIBLE. BREEZY SOUTHEAST WINDS WILL BECOME GUSTY SOUTH-  
SOUTHWEST WINDS THIS AFTERNOON ACROSS THE REGION. INCREASING  
CONFIDENCE IN AN OUTFLOW FROM STORMS IN ARIZONA THAT WILL BRIEFLY  
ELEVATE WINDS AROUND SUNSET... FROM THE SOUTH-SOUTHEAST FOR LAS  
VEGAS VALLEY TAF SITES AND FROM THE EAST AT KIFP. WINDS CALM  
OVERNIGHT. EXPECT SIMILAR CONDITIONS WEDNESDAY WITH SCT-BKN AOA  
12KFT.  

 
 
   
SPOTTER INFORMATION STATEMENT
 
SPOTTERS ARE ENCOURAGED TO REPORT  
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING  
PROCEDURES.  

 
 

 
 
DISCUSSION/AVIATION/FIRE WEATHER...SOULAT  
 
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:  
HTTPS://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab NV Page
The Nexlab AZ Page
The Nexlab CA Page Main Text Page