Date | Time | News and Notes |
09/28/1010 | 0658 | National PL: 2 North Ops PL: 2 MACS Mode: 2 Initial Attack Activity was light in the GACC yesterday with 16 fires for 48 acres reported in the Daily Situation Report, ( there may be a 24-hour delay in reporting on the SIT report) There are 2 small fires being managed to achieve multiple objectives (ENF). Prescribed burning has begun in the GACC, although most units are holding off until they receive additional precipitation. There are currently no large fires burning in the GACC. Fuels are dry throughout the region. 1000 hour fuels are measured at or below 15 percent except for the North Coast PSA. BI is averaged at 45 for the GACC. Today and Wednesday will be hot with some near to new record heat expected. Warmest inland areas will see max afternoon temps of 100-105 and min RH below 15%. Poor nighttime RH recovery will also continue for many mid and upper slope areas. The marine layer will remain very thin and winds light. Wednesday will see the start of a cooling trend as the high pressure ridge weakens. There will also be some improvement in RH recovery and the marine layer will become thicker and return further inland. Thursday a southerly flow will begin to bring in some moisture, and Friday and Saturday afternoons will have the best (slight) chance of isolated thunderstorms over the Cascade/Sierra crest and eastward. A low pressure trough approaches the coast late next weekend to moderate the hot, dry conditions even further. Resources committed out of the GACC are supporting SOPS and Nevada. |
9/27/2010 | 0651 | Initial Attack Activity was light in the GACC yesterday with 22 fires for 2 acres reported in the Daily Situation Report, ( there may be a 24-hour delay in reporting on the SIT report) Fuels are dry throughout the region. 1000 hour fuels are measured at or below 15 percent except for the North Coast PSA. BI is averaged at 45 for the GACC. A strong high pressure ridge will continue to linger over North Ops well into the week. Conditions will remain dry to very dry and unseasonably warm with afternoon max temps on the order of 8-15 degrees above normal. The warmest days will be Monday and Tuesday when the warmest inland areas will top out near 100, and some areas may set new max temp records for the day. Fairly widespread afternoon RH's of 12% or less are expected, especially for the Bay Area, LNU/Southern MNF and near and east of the Cascade/Sierra crest. Thermal belt conditions will continue to develop overnight in many areas and contribute to poor nighttime RH recovery (<30%) around mid slope and higher. The marine layer will continue to be quite shallow until at least mid-week but will likely deepen later this week. Winds will generally remain light through the 7 day period. The ridge may shift eastward to around the 4 Corners region later this week which would set up a possible thunderstorm pattern for the eastern PSA's in particular Thurs-Sat, but the details of this are still quite uncertain. |
9/26/2010 | 0730 | Initial Attack Activity was light in the GACC yesterday with 19 fires for 3 acres reported in the Daily Situation Report, ( there may be a 24-hour delay in reporting on the SIT report) There are currently no large fires burning in the GACC, but there are several smaller incidents to note: CA-LNU, Bodega, 89 acres, 80 percent contained, Hwy 1 open to one-lane controlled traffic. Fuels are dry throughout the region. 1000 hour fuels are measured at or below 15 percent except for the North Coast PSA. BI is averaged at 45 for the GACC. Observed fire behavior yesterday was more intense that seen in recent weeks. Very strong high pressure will be over North Ops well into next week. This will keep conditions very dry and unseasonably warm with afternoon max temps on the order of 8-15 degrees above normal. The warmest days are likely to be Monday and Tuesday when the warmest inland areas will top out at over 100, and some areas may be warm enough then to set new records for the day. Fairly widespread afternoon RH's of 12% or less are expected, too. Thermal belt conditions are also likely to develop in many areas and contribute to poor nighttime RH recovery (<30%) mid slope and higher. Winds will remain light and the marine layer shallow. The high pressure may shift eastward into the 4 Corners region late next week to set up a possible thunderstorm pattern over the eastern PSA's, but this possible weather change is still very uncertain Resources committed out of the GACC are supporting SOPS and Nevada. |
09/25/2010 | 1422 | Intial attack activity is beginning to pick up in the GACC. LNU is currently working two fires for a total of 40 to 50 acres. |
09/25/2010 | 0718 | Initial Attack Activity was light in the GACC yesterday with 6 fires for 2 acres reported in the Daily Situation Report. Fuels are dry throughout the region. 1000 hour fuels are measured at or below 15 percent except for the North Coast PSA. BI is averaged at 45 for the GACC. Unseasonably warm weather is in store well into next week as a high pressure system strengthens over North Ops. Afternoon max temps 8-15 degrees above normal are expected through early next week with the warmest inland areas climbing to near 100 early next week. Fairly widespread afternoon min RH's of 15% or less and many areas with very poor RH recovery will be in place, either just from the dry airmass conditions we will have or from overnight thermal belt conditions that develop (depending on the day/area). The marine layer will remain rather thin, so coastal night/morning low clouds/fog will be minimized. Winds will mostly remain light and slope driven (day and night). There is the possibility of a thunderstorm pattern developing late next week if the high pressure becomes centered over the 4 corners area and brings some moisture northward in the S to SE flow around the west side of the high. |
09/24/2010 | 0653 | Initial Attack Activity was light in the GACC yesterday with 14 fires for 11 acres reported in the Daily Situation Report. A long term warm up began yesterday. Even warmer and drier Friday...with near record level heat possible in some areas this weekend or early next week. Long range computer models are hinting that this hot/dry pattern could continue through most of next week. Overall, winds will be light and slope driven over the next few days. |
09/23/2010 | 0655 | National PL: 2 North Ops PL: 2 MACS Mode: 2 Initial Attack Activity was light in the GACC yesterday with 7 fires for 20 acres reported in the Daily Situation Report. There are 2 small fires being managed to achieve multiple objectives (ENF). Prescribed burning has begun in the GACC. There are currently no large fires burning in the GACC. Fuels are dry throughout the region. 1000 hour fuels are measured below 16 percent. ERC is averaged across the GACC at the 80th percentile. A warming and drying trend will bring temperatures to 5-10 degrees above normal with minimum afternoon RH in interior areas dropping to the 5-15% range by Friday. Areas west of the Cascade-Sierra crest will see light to moderate N-NE/offshore winds that will enhance these conditions and produce poor overnight RH recovery. There are very few resources committed out of the GACC. |
--
Check out http://groups.yahoo.com/group/californiadisasters/
Read our blog at http://eclecticarcania.blogspot.com/
Visit me on Facebook at http://www.facebook.com/derkimster
__._,_.___
No comments:
Post a Comment