Mon May 20 16:13:26 EDT 2024

Western Lassen, Eastern Plumas, and Eastern Sierra Counties-
113 PM PDT Mon May 20 2024

.TONIGHT...
* Sky/Weather........Clear. 
* Min Temperature.... 
*   Valleys..........29-39. 
*   Mid Slope........30-39. 
*   24 hr trend......Little change. 
* Max Humidity....... 
*   Valleys..........50-60%. 
*   Mid Slope........37-47%. 
*   24 hr trend......7% drier. 
* 20-Foot Winds...... 
*   Valleys/Slope....Northeast winds 9 to 14 mph in the evening 
                     becoming downslope 2 to 5 mph. 
*   Ridge Top........Northeast winds 10 to 15 mph with gusts to 25 
                     mph. 
* Haines Index.......2-3. 
* LAL................1. 
* Chc Wetting Rain...0%. 
* Mixing Height......3800-4800 ft agl decreasing to 600-700 ft agl 
                     after midnight. 
* Transport Winds....North 10 to 15 mph in the evening becoming 
                     light. 
* Ventilation........Excellent decreasing to poor after midnight. 

.TUESDAY...
* Sky/Weather........Sunny. 
* Max Temperature.... 
*   Valleys..........63-73. 
*   Mid Slope........61-69. 
*   24 hr trend......6 degrees warmer. 
* Min Humidity....... 
*   Valleys..........13-21%. 
*   Mid Slope........14-22%. 
*   24 hr trend......Little change. 
* 20-Foot Winds...... 
*   Valleys/Slope....Upslope 4 to 8 mph. 
*   Ridge Top........East winds 10 to 15 mph. 
* Haines Index.......3. 
* LAL................1. 
* Chc Wetting Rain...0%. 
* Mixing Height......2100-3100 ft agl increasing to 6200-7100 ft 
                     agl in the afternoon. 
* Transport Winds....Light winds. 
* Ventilation........Fair increasing to very good in the afternoon. 

.TUESDAY NIGHT...
* Sky/Weather........Clear. 
* Min Temperature.... 
*   Valleys..........34-44. 
*   Mid Slope........34-44. 
* Max Humidity....... 
*   Valleys..........67-77%. 
*   Mid Slope........47-57%. 
* 20-Foot Winds...... 
*   Valleys/Slope....Downslope 2 to 5 mph. 
*   Ridge Top........West winds 10 to 15 mph. 
* Haines Index.......3. 
* LAL................1. 
* Chc Wetting Rain...0%. 
* Mixing Height......3100-4100 ft agl decreasing to 600-700 ft agl 
                     after midnight. 
* Transport Winds....Light winds. 
* Ventilation........Good decreasing to poor after midnight. 

.WEDNESDAY...
* Sky/Weather........Sunny. 
* Max Temperature.... 
*   Valleys..........63-73. 
*   Mid Slope........60-70. 
* Min Humidity....... 
*   Valleys..........20-30%. 
*   Mid Slope........20-30%. 
* 20-Foot Winds...... 
*   Valleys/Slope....Upslope 4 to 8 mph becoming west 12 to 18 mph 
                     with gusts to 30 mph. 
*   Ridge Top........West winds 15 to 25 mph with gusts to 35 mph. 
* Haines Index.......2. 
* LAL................1. 
* Chc Wetting Rain...0%. 
* Mixing Height......900-1400 ft agl increasing to 6300-7300 ft agl 
                     in the afternoon. 
* Transport Winds....Light winds becoming west 15 to 25 mph in the 
                     afternoon. 
* Ventilation........Marginal increasing to excellent in the 
                     afternoon. 


.Extended...
.WEDNESDAY NIGHT...Clear. Lows 28-38. West winds 13 to 20 mph
becoming downslope 2 to 5 mph. 
.THURSDAY...Clear. Highs 60-70. Lows 28-38. Slope winds. 
.FRIDAY THROUGH SATURDAY...Clear. Highs 62-72. Lows 31-41. West
winds 10 to 15 mph. 
.SUNDAY...Clear. Highs 65-75. Lows 31-41. 
.MEMORIAL DAY...Sunny. Highs 71-81.