Latest news with #Alvin
San Francisco Chronicle
8 hours ago
- Climate
- San Francisco Chronicle
California heat could threaten long-standing temperature records. How long will warm weather last?
Hot weather will grip California for one more day, threatening long-standing temperature records before a significant cool-down Sunday. A high-pressure system will continue to keep skies generally clear across Northern and Central California on Saturday, trapping hot air beneath it. The air mass in the lower atmosphere is expected to warm by a couple of degrees Saturday, which would typically translate to similar warming at ground level, but a complex wind pattern could throw off forecasts. The area of high pressure will be flanked by two areas of low pressure, one spinning off the coast of Southern California and another approaching the Oregon coast. Together, these two low-pressure systems will complicate wind and temperature patterns across the Golden State on Saturday. In the Bay Area, a few degrees of cooling is forecast nearly everywhere as marine-chilled winds increase. A heat advisory will be in effect from 11 a.m. to 8 p.m. Saturday for the interior East Bay valleys and the North Bay interior mountains. On Friday, the heat advisory covered a larger swath of the Bay Area, but relatively cooler winds should keep the South Bay in the 80s to low 90s Saturday, short of heat advisory criteria. Triple-digit temperatures should also be avoided in the East Bay valleys Saturday as the sea breeze hits in the midafternoon, but highs will still be well above average, in the mid-90s. San Francisco's microclimates will again be on full display. Ocean Beach may struggle to hit 60 degrees while neighborhoods on the east side of the city should surpass 70 degrees. Oakland will probably wind up a degree or two shy of 80 degrees. In the Central Valley, Saturday will probably be even hotter than Friday in many locations. Highs are forecast to range from 101 to 108 degrees. The National Weather Service forecasts highs of 105 degrees in Merced (Merced County) and Hanford (Kings County), which would tie daily records in each city. A few other cities could be just short of their hottest May day in recorded history. The delta breeze may keep temperatures in west Sacramento around 100 degrees, but areas just north and east of the city, such as Roseville, will be close to 105 degrees. If the delta breeze holds off longer than expected, Sacramento Executive Airport could challenge a monthly temperature record. Red Bluff and Chico could reach 107 degrees Saturday. Sunday will mark an abrupt end to the hot spell. The high-pressure system is predicted to break down rapidly with temperatures dropping to the 60s to low 70s near the bay shoreline and 70s to low 80s in Wine Country and the interior East Bay. Even the Sacramento Valley will drop to the 80s to low 90s, only 5 to 7 degrees above average. Sierra, Southern California thunderstorms The low-pressure system spinning off the Southern California coast is expected to absorb remnant moisture from Tropical Storm Alvin this weekend, which will raise the chance of thunderstorms. The Storm Prediction Center forecasts thunderstorms across the Sierra Nevada and the Mojave Desert on Saturday. Thunderstorms will likely become more widespread Sunday, as the threat expands to the Antelope Valley and Transverse Ranges. A mix of wet and dry lightning strikes are possible, along with erratic wind gusts. It's possible rare May rain could make an appearance in Palm Springs and the desert areas if thunderstorms pop up. Palm Springs averages just 0.05 inches in May, but Sunday's storms could add up to a tenth of an inch or more.
Yahoo
17 hours ago
- Climate
- Yahoo
Houston weather: Storms possible on Friday evening, better chance on Sunday
The Brief Few storms Friday evening, then a better chance Sunday On Sunday afternoon, a few storms could be strong Hurricane season begins Sunday, June 1 HOUSTON - Storm chances will remain in the Houston area on Friday evening with a higher chance coming on Sunday. A weak cold front brought some heavy rain, small hail and gusty winds, along with frequent lightning this morning. A few more storms may fire up near the front through this evening before it pushes south of the area. High pressure is expected to build in Saturday, which will mean temperatures a little bit hotter and rain chances a bit lower. Look for a 20% chance for a few afternoon and evening showers and storms Saturday. Another disturbance will bring in a better chance for spotty to scattered showers and storms Sunday afternoon and evening. Watch out because a few of these storms could be on the strong side with hail, gusty winds and frequent lightning. The 2025 Atlantic Hurricane Season begins on Sunday. All is looking quiet for now with Saharan dust moving across the Atlantic Ocean. NOAA is predicting 13-19 named storms, 6-10 hurricanes and 3-5 major hurricanes. Now is the time to prepare. Tropical Storm Alvin formed in the eastern Pacific Ocean Thursday and is expected to gradually weaken as it tracks north towards Cabo San Lucas the next few days. This system stays well away from the gulf coast. The Source Information provided by your Gulf Coast Weather Authority Team.
Yahoo
17 hours ago
- Climate
- Yahoo
As Alvin degenerates, remnants could bring unusual pre-monsoon rainfall over Desert Southwest
PHOENIX – A surge of moisture, due in part to the placement of an upper-level low and the tropical moisture field from the Northern Hemisphere's first tropical cyclone of the year, will lead to increased rain chances across the Southwest over the next several days. Moisture from the remnants of Tropical Storm Alvin will help increase humidity levels and eventually rain chances for cities such as Phoenix and Yuma, and potentially as far west as Las Vegas and Palm Springs, California. Forecast models generally expect less than 0.25 inches of rainfall across southeast California, while parts of Arizona could see totals closer to half an inch. Forecasters caution that rainfall amounts could be enhanced over higher terrain, where totals of up to an inch are possible, potentially leading to minor flooding in downstream areas. An isolated thunderstorm cannot be ruled out, but the main impact will come from the unusual rainfall for this time of year. Southwest Monsoon Season Is Here: What You Need To Know According to National Weather Service historical data, Phoenix Sky Harbor Airport has only recorded measurable rainfall 38 times during the last week of May and the first week of June. Rainfall during this period is even rarer in Yuma, which has only recorded measurable rain 11 times during the same window since the late 1800s. The FOX Forecast Center stresses that the increased humidity and rainfall are not part of the annual monsoon, which typically begins around June 15 and lasts through Sept. 30. Cities in the Southwest accumulate roughly half of their annual precipitation during the months of June, July, August and September, though amounts can vary significantly. The monsoon pattern is closely linked to the status of the El Niño-Southern Oscillation, or what is commonly called the ENSO. During La Niña events, the monsoon signal is typically more expansive and leads to heavier rainfall, while El Niño conditions can delay the start of the rainy season. How To Watch Fox Weather The unusual early-season rainfall will bring major benefits, including reduced wildfire potential and cooler temperatures. Highs during the second half of the weekend are expected to only reach the lower 90s, a significant drop from recent temperatures reaching 100-110 degrees. Any relief is expected to be temporary, as a building heat dome late next week and into the second week of June could bring the hottest temperatures of the year so article source: As Alvin degenerates, remnants could bring unusual pre-monsoon rainfall over Desert Southwest
Epoch Times
18 hours ago
- Climate
- Epoch Times
Tropical Storm Alvin Spins in Pacific, Not Expected to Enter Gulf
The National Hurricane Center announced its first named storm of the hurricane season this week, and it formed in the Pacific Ocean. Tropical Storm Alvin was announced on May 29, spotted about 565 miles south-southeast of Mexico's Baja California peninsula with maximum sustained winds of 60 mph and moving northwest at 12 mph.
Yahoo
19 hours ago
- Climate
- Yahoo
Tropical Storm Alvin Is Here. These Are the Names for Every Hurricane This Season.
Tropical Storm Alvin, the first named storm of the 2025 hurricane season, has arrived and is making its way over the Eastern Pacific Ocean. However, there are surely more storms behind it. In fact, there are as many as 18 named storms and 10 hurricanes forecast for this year, according to Mexico's National Weather Service. Not only does Hurricane Alvin mark the first storm of the season in the Eastern Pacific, but it's the first across all ocean basins throughout the Northern Hemisphere. While we wait on the other named storms for the hurricane season, Tropical Storm Alvin is forecast to stay far enough offshore that its effects on the Mexican coast will be minimal, limited primarily to larger swells and stronger rip currents along coastal areas. The official Atlantic hurricane season occurs from June 1st to November 30th.. While most hurricanes are expected between mid-August and mid-October, with the peak typically around September, tropical cyclone activity can sometimes occur before and after these dates. Since 1953, Atlantic tropical storms have been named by a list created by the National Hurricane Center. Here are the names of every storm this season, with one assigned for each letter of the alphabet except Q, U, X, Y, and Z. Andrea Barry Chantal Dexter Erin Fernand Gabrielle Humberto Imelda Jerry Karen Lorenzo Melissa Nestor Olga Pablo Rebekah Sebastien Tanya Van Wendy Tropical Storm Alvin Is Here. These Are the Names for Every Hurricane This Season. first appeared on Men's Journal on May 30, 2025
