The cooler weather we've enjoyed over the last couple of days is coming to an end, and the threat of fire danger stays elevated in your Thursday forecast. Temperatures will end up around or slightly above average for your Thursday afternoon. Gusty west winds, low humidity, and dry fuels have prompted another Red Flag Warning to be issued for Modoc County from 1PM through 8PM today. Fire danger will mostly end up in the moderate to high range this afternoon, with he highest fire danger expected in Modoc County.
Skies are clear for the start of your Thursday and tmeperatures are slightly warmer than 24 hours ago. Valley and foothill areas are starting out in the 60's to 70's, and mountain areas are in the 40's to 50's this morning. Winds are light and out of the northeast to start the day, but will mostly end up out of the south to around 10mph this afternoon. Humidity will dip into the high single digits to around 20 percent this afternoon, and the dry conditions will make it very easy for fires to start. Fire danger will be in the moderate to high range again this afternoon. High temperatures are projected to top out in the high 90's to low triple digits in the valley this afternoon, while foothill and mountain areas end up in the high 80's to mid 90's. Slightly hotter temperatures can be expected in portions of the Northern Mountains this afternoon.
High pressure centered to our southeast in the Desert Southwest will dominate our extended forecast, and will result in dangerously hot temperatures on the way for your weekend and next week. Valley areas can expect high temperatures to climb back into the triple digits across the board for the valley on Friday, while mountain and foothill areas mostly top out in the 90's. Valley areas will end up well above the century mark for both days this weekend, with the current projections putting us in the 104 to 110 degree range. Mountain and foothill areas will top out in the 90's to triple digits this weekend. Overnight low temperatures will also stay very warm, with valley and foothill areas only expecting to dip into the 70's to low 80's overnight. Most mountain areas will see overnight low temperatures in the 50's to 60's this weekend. The dangerous heat ahead has prompted the National Weather Service out of Sacramento to issue an Excessive Heat Watch for the valley, foothills and Northern Mountains from noon on Friday through Sunday night. This watch could be extended as the heat is expected to continue through the start of next week. Models are hinting at clouds moving up from the south on Sunday, but the potential for active weather is expected to stay to our south in the Sierra. Those clouds are making forecasting temperatures a little bit troublesome, as they could limit daytime heating, but will also trap in heat during your overnight hours. The latest projections are keeping temperatures in the same range as the weekend through the middle of next week. Make sure you're drinking plenty of water, dressing for the hotter temperatures, and avoiding outdoor activities during the peak heat of the day over the next week.