After for so many weeks, about a few months, of dry and warm weather, significant changes in the weather are forecast to occur during the first half of the week of October 2-8, 2011, the first week of the month. A couple of early season Pacific storm systems would impact Northern and Central California.
On Monday and Monday night, the first frontal boundary is forecast to move across Northern California, spreading light rain southward through the San Francisco Bay Area Monday afternoon and then spreading south to the Monterey Bay areas by Monday night. This first front will be weak and is expected to only have light rainfall. A quick break is projected for Tuesday but will be short as the other, stronger cold front is currently timed to arrive Tuesday night and early Wednesday morning. A brief period of heavy rain and gusty southerly winds are likely with the front as it passes through on Tuesday night in the San Francisco Bay Area, including our area in San Jose, CA. Temps will drop 10-20 degrees below normal was observed. Some showers are expected into Wednesday afternoon and evening behind the cold front. On top of that, due to the cold, unstable air mass aloft behind the cold front, and as the main center of the Pacific low pressure system hovers above our region, thunderstorms were entirely possible on Wednesday afternoon. Over a half an inch of rain fell during this stormy period, approximately 0.67 inches of rainfall to be exact.
In this video, it shows the calm before the storm, beginning on the first day of October 2011. As the storm(s) near California, temps dropped to the low 70's, unusually cool compared to what we were experiencing for many days.
Then coming Monday of October 3, 2011, the first weaker cold front was bearing into Northern California. It shows the high clouds from this front. Later that afternoon, winds from the south are now being felt as the cold front nears the region. By late afternoon, we encountered light rain along I-680. You could even hear on the radio that California had some winter storm watches and warnings already! We were headed to Stockton, CA. High cloud cover covered much of the skies in Stockton, CA. Although it was dry now, the rains came later that evening as we drove back home.
Then coming Tuesday, October 4, 2011, it shows our skies filled with rain-filled cumulus/nimbostratus clouds. Although this day was the day we would have a bit of a break, skies remained mostly cloudy. Just before the sun began to break through the high cloud cover, the next, stronger front arrived later that afternoon. It shows me talk a bit about what was to come with the weather. That was at Evergreen Valley College actually.
It was now around almost 1 a.m., Wednesday, October 5, 2011. The stronger front finally came through our area, spreading moderate to possibly heavy rain. Gusty southerly winds was experienced in some areas.
Then coming the next day, (still Wednesday, October 5, 2011), it shows us storm chase to Tracy, CA. While on I-680, we encountered a heavy downpour, almost like what you see in Florida or the Midwest! (Amazing storm view at 12:28 in the video. Heavy rain starts at 13:37 in the video)
As we continued along I-680, we saw more beautiful storm cells and another brief rainshower. More storms were forming north of Dublin, CA as well as southeeast of Livermore, CA. We stopped by Dublin to observe the incoming storm cells to the north and west. Later, we continued east, onto Interstate 580, towards Tracy, CA.
When we arrived to Tracy, we saw more thunderstorms north of the area, possibly extending as far north as the Sacramento Valleys. Thunderstorms were easily formed this day and Thursday around Central California since the center of the pacific storm low-pressure system was spinning right above the region, causing instability aloft. The low pressure storm system was moving towards the southwest but at a slow pace.
Later, we headed back to San Jose, CA. We possibly experienced a bit of hail while on Altamont Pass. Once back home, there was a nice brief clearing, just enough to see the sunset to end this stormy day.
Then the next day, it shows more rainy weather on Thursday, October 6, 2011. More heavy downpours was experienced around the morning hours. Ominous skies were then followed during the early afternoon hours. The low pressure storm system was slowly drifting southwestward leaving our area, but we were caught with the upper swirls of moisture from the system, therefore still creating a chance for the formation of showers and thunderstorms, especially from San Jose, CA southward.
Later around late afternoon, at around 4 p.m., the skies cleared up dramatically fast as the last band/swirl of moisture from the system drifts southward, away from our area. I never seen the air so clear... It was a great week, weather-wise!
[Footage taken from October 3-6, 2011 with my Canon Powershot SD1100 IS Digital ELPH camera]
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?