364  
WWHW40 PHFO 300112  
WSWHFO  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE HONOLULU HI  
312 PM HST SUN JAN 29 2023  
 
...WINTER STORM WARNING FOR MAUNA KEA AND MAUNA LOA SUMMITS  
THROUGH 6 PM HST MONDAY...  
 
.DEEP MOISTURE AND INSTABILITY WILL INCREASE TONIGHT OVER THE BIG  
ISLAND AND CONTINUE THROUGH MONDAY AFTERNOON WITH SNOW LEVELS  
AROUND 12,000 FEET. EXPECT ADDITIONAL PERIODS OF HEAVY SNOW OVER  
THE SUMMMITS OF MAUNA KEA AND MAUNA LOA THROUGH MONDAY AFTERNOON.  
ADDITIONALLY, WINDS ARE EXPECTED TO STRENGTHEN LATE TONIGHT  
THROUGH MONDAY WITH PERIODS OF BLIZZARD-LIKE CONDITIONS EXPECTED  
ON MONDAY.  
 
HIZ028-301415-  
/O.CON.PHFO.WS.W.0001.000000T0000Z-230131T0400Z/  
BIG ISLAND SUMMITS-  
312 PM HST SUN JAN 29 2023  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM HST MONDAY
 
 
* WHAT...HEAVY SNOW. ADDITIONAL SNOW ACCUMULATIONS OF OVER A FOOT.  
WINDS INCREASING LATE TONIGHT THROUGH MONDAY WITH GUSTS AS HIGH  
AS 60 MPH. PERIODS OF BLIZZARD-LIKE CONDITIONS ON MONDAY.  
 
* WHERE...BIG ISLAND SUMMITS.  
 
* WHEN...UNTIL 6 PM HST MONDAY.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. SNOW  
WILL SIGNIFICANTLY REDUCE VISIBILITY AT TIMES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW, SLEET,  
AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO  
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. ANY  
TRAVEL PLANS TO THE SUMMITS SHOULD BE POSTPONED UNTIL THE THREAT  
DIMINISHES.  
 

 
 

 
 
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