Mon May 20 17:28:50 EDT 2024

Lower Columbia Basin of Oregon-Lower Columbia Basin-
228 PM PDT Mon May 20 2024

.TONIGHT...
* Sky/weather.........Mostly clear. 
* Min temperature.....39-46. 
* Max humidity........69-81 percent. 
* Humidity recovery...Good. 
* 20-foot winds....... 
*     Valleys/lwr slopes...West winds 6 to 12 mph. 
*     Ridges/upr slopes....West winds 6 to 12 mph. 
* CWR.................0 percent. 
* LAL.................1. 
* Haines Index........2 or very low potential for extreme fire 
  behavior. 
* Mixing height.......Near surface. 
* Transport winds.....West 10 to 15 mph. 

.TUESDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy. A 
  chance of showers in the afternoon. 
* Max temperature.....61-69...except 57-64 ridges. 
* Min humidity........36-46 percent. 
* 20-foot winds....... 
*     Valleys/lwr slopes...Southwest winds 7 to 13 mph. 
*     Ridges/upr slopes....Southwest winds 7 to 13 mph. 
* CWR.................20 percent. 
* LAL.................1. 
* Haines Index........2 or very low potential for extreme fire 
  behavior. 
* Mixing height.......6000 ft agl. 
* Transport winds.....Southwest 15 to 20 mph. 

.TUESDAY NIGHT...
* Sky/weather.........Mostly cloudy. Showers in the evening, then a 
  chance of showers after midnight. 
* Min temperature.....42-47. 
* Max humidity........80-95 percent. 
* Humidity recovery...Excellent. 
* 20-foot winds....... 
*     Valleys/lwr slopes...Southwest winds 7 to 13 mph with gusts up to 
      25 mph. 
*     Ridges/upr slopes....Southwest winds 8 to 14 mph. 
* CWR.................60 percent. 
* LAL.................1. 
* Haines Index........2 or very low potential for extreme fire 
  behavior. 
* Mixing height.......Near surface. 
* Transport winds.....Southwest around 20 mph. 

.WEDNESDAY...
* Sky/weather.........Partly cloudy. A chance of showers. 
* Max temperature.....54-64...except 52-59 ridges. 
* Min humidity........34-49 percent. 
* 20-foot winds....... 
*     Valleys/lwr slopes...West winds 12 to 18 mph with gusts up to 30 
      mph. 
*     Ridges/upr slopes....West winds 12 to 18 mph. 
* CWR.................10 percent. 
* LAL.................1. 
* Haines Index........3 or very low potential for extreme fire 
  behavior. 
* Mixing height.......8000 ft agl. 
* Transport winds.....West around 25 mph. 


.Forecast days 3 through 7......
.THURSDAY...A chance of showers. Partly cloudy. Lows 38 to 46.
Highs 64 to 73. West winds 8 to 14 mph. 
.FRIDAY...A slight chance of showers. Partly cloudy. Lows 43 to
48. Highs 61 to 69. Southwest winds 5 to 11 mph. 
.SATURDAY...A slight chance of showers. Partly cloudy. Lows 38 to
44. Highs 58 to 69. West winds 8 to 14 mph. 
.SUNDAY...Partly cloudy. Lows 39 to 45. Highs 64 to 72. Southwest
winds 6 to 12 mph. 
.MEMORIAL DAY...Mostly clear. Lows 42 to 47. Highs 71 to 79.
Southwest winds 3 to 8 mph.