543  
WWUS76 KSTO 210553  
NPWSTO  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
1053 PM PDT FRI JUL 20 2018  
 
...HOT TEMPERATURES TUESDAY THROUGH THURSDAY FOR THE CENTRAL  
VALLEY AND SURROUNDING FOOTHILLS......  
 
.BUILDING HIGH PRESSURE WILL BRING THE RETURN OF HOT WEATHER NEXT  
WEEK. DAYTIME HIGHS COULD BE 5 TO 10 DEGREES ABOVE NORMAL,  
SIMILAR TO WHAT WE SAW WITH THE HEAT EVENT EARLIER THIS WEEK. THE  
NORTHERN AND CENTRAL SACRAMENTO VALLEY COULD HAVE HIGH  
TEMPERATURES REACH AS HIGH AS 110 DEGREES, WITH WARM OVERNIGHT  
LOWS PROVIDING LITTLE RELIEF FROM THE HEAT.  
 
CAZ013-015>017-019-063-064-066-067-230600-  
/O.CON.KSTO.EH.A.0002.180724T1900Z-180727T0600Z/  
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-  
NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY-  
SOUTHERN SACRAMENTO VALLEY-NORTHERN SAN JOAQUIN VALLEY-  
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-  
CLEAR LAKE/SOUTHERN LAKE COUNTY-  
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-  
INCLUDING THE CITIES OF SHASTA DAM, REDDING, RED BLUFF, CHICO,  
OROVILLE, MARYSVILLE/YUBA CITY, SACRAMENTO, STOCKTON, MODESTO,  
ALDER SPRINGS, LAKEPORT, PARADISE, GRASS VALLEY, AND JACKSON  
1053 PM PDT FRI JUL 20 2018  
 
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON  
THROUGH THURSDAY EVENING...  
 
* TEMPERATURE...DAYTIME HIGHS FROM THE UPPER 90S IN THE  
FOOTHILLS TO 105 TO 110 IN THE NORTHERN AND CENTRAL SACRAMENTO  
VALLEY. OVERNIGHT LOWS ONLY EXPECTED TO DROP DOWN INTO THE MID  
70S TO NEAR 80 FOR SOME OF THE WARMEST LOCATIONS  
 
* IMPACTS...LONG OUTDOOR EXPOSURE MAY INCREASE CHANCES FOR HEAT  
RELATED ILLNESS FOR SENSITIVE GROUPS SUCH AS CHILDREN OR THE  
ELDERLY  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT  
TEMPERATURES IS EXPECTED AND WILL CREATE A DANGEROUS SITUATION IN  
WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS, STAY  
IN AN AIR-CONDITIONED ROOM, STAY OUT OF THE SUN, AND CHECK UP ON  
RELATIVES AND NEIGHBORS.  
 

 
 
INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWS.SACRAMENTO  
WWW.TWITTER.COM/NWSSACRAMENTO  
 
INTERACT WITH US VIA SOCIAL MEDIA  
WWW.FACEBOOK.COM/NWS.SACRAMENTO  
WWW.TWITTER.COM/NWSSACRAMENTO  
 

 
 
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