Strong 1036 mb surface high pressure built over the Great Basin resulting in two main periods of gusty northeast to east winds over the coastal slopes and inland valleys during the early mornings to early afternoons. Strong winds downed several trees across the mountain foothill and eastern valley areas, as well as power lines just north of Descanso in San Diego County. Significant impacts occurred at US Border Patrol check points on I-8 where large signs were blown over, trees downed and a semi overturned. Widespread gusts over 60 mph (25 locations in San Diego County) were reported with gusts up to around 100 mph in the favored spots like Sill Hill (just west of Cuyamaca Lake) and Buckman Springs in San Diego County and Fremont Canyon in Orange County. This was the strongest and most widespread wind event in several years.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 29-APR-14 05:30:00 to 29-APR-14 12:30:00 (PST-8)
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds began at the Fremont Canyon RAWS between 0551 and 0651 PST on the 29th and ended between 1051 and 1151 PST the same day. During this time, winds were sustained out of the east at 40 to 45 mph with a peak gust of 66 mph recorded twice between 0751 and 0951 PST.
High winds began at the Pleasants Peak mesonet between 0530 and 0600 PST on the 29th and ended between 1200 and 1230 PST the same day. During this time, winds were sustained out of the east-northeast around 45 to 55 mph with a peak gust of 76 mph recorded between 0700 and 0730 PST.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 30-APR-14 04:30:00 to 30-APR-14 14:00:00 (PST-8)
Magnitude: 82.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds began at the Fremont Canyon RAWS between 0551 and 0651 PST on the 30th and ended between 1251 and 1351 PST the same day. During this time, winds were sustained out of the northeast at 50 to 65 mph with a peak gust of 94 mph recorded between 0851 and 0951 PST. Another gust to 91 mph occurred during the hour prior.
High winds began at the Pleasants Peak mesonet between 0430 and 0500 PST on the 30th and ended between 1330 and 1400 PST the same day. During this time, winds were sustained out of the east-northeast around 45 to 55 mph with several gusts over 70 mph, including a peak gust of 85 mph recorded twice between 0930 and 1000 PST.
High winds began at the Santiago Peak mesonet between 0631 and 0701 PST on the 30th and ended between 1001 and 1031 PST the same day. During this time, winds were sustained out of the north-northeast around 45 to 55 mph with a peak gust of 62 mph recorded between 0901 and 0931 PST.

Strong Wind in ORANGE COUNTY COASTAL AREAS, CALIFORNIA
From 30-APR-14 08:00:00 to 30-APR-14 11:00:00 (PST-8)
Magnitude: 34.00 ES
Property damage: 160.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Strong winds damaged a roof at Thomas Payne elementary school in Garden Grove. The City of Anaheim reported three downed power lines, one light tower down, and multiple trees down.  The Yorba and Irvine regional parks were closed due to high winds. The Yorba school district experienced power outages at four school sites ranging from 30 minutes to 2 hours. The roof of the Beverly Manor Reservoir was blown off causing damage to the reservoir, employee vehicles, and minor damage at OCFA station 48.  A tree was blown down damaging the vehicle gate at John Wayne Airport. Four downed trees were reported in La Habra, damaging two vehicles. In the city of Orange, 11 power lines were downed, 5 intersections closed, 27 trees down and power outage to 388 customers. Orange Lutheran High School was also closed for the day.

High Wind in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 30-APR-14 06:00:00 to 30-APR-14 12:30:00 (PST-8)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds occurred at the Highland Springs RAWS between 0716 and 1216 PST on the 30th. During this time, winds were sustained 35 to 45 mph, gusting over 65 mph. A peak gust of 75 mph was measured between 0716 and 0816 PST.
High winds occurred at the Poppet Flat RAWS between 0614 and 1114 PST on the 30th. During this time, winds were sustained around 35 mph, gusting over 60 mph. A peak gust of 64 mph was measured between 0714 and 0814 PST.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 30-APR-14 14:00:00 to 30-APR-14 18:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: RAWS

High winds occurred at the Cabazon RAWS between 0514 and 0914 PST on the 30th. During this time, winds were sustained 30 to 35 mph, with a peak gust of 64 mph measured between 0614 and 0714 PST. A spotter in Hemet measured a 50 mph wind gust, small trees snapped or uprooted, and many roof tiles blowing off of houses.  The Ontario airport ASOS recorded a wind gust of 69 mph around 0645 PST and a 70 mph gust between 0851 and 0951 PST on the 30th.  The Chino airport ASOS measured a peak gust of 59 mph around 0906 PST on the 30th.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 29-APR-14 04:30:00 to 29-APR-14 06:00:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter near Rancho Cucamonga measured a 60 mph wind gust which downed several small tree limbs.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 28-APR-14 23:20:00 to 29-APR-14 13:00:00 (PST-8)
Magnitude: 71.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Sill Hill mesonet station between 2320 and 2330 PST on the 28th and ended between 1250 and 1300 PST on the 29th. During this time winds gusted out of the east 35-50 mph with most gusts over 60 mph. The peak gust of 82 mph was recorded between 0620-0630 PST on the 29th.
High winds occurred at the Buckman Springs mesonet between 0600 and 0620 PST on the 29th, with a peak gust of 59 mph.
High winds occurred at the Boulder Creek mesonet between 1220 and 1240 PST on the 29th, with a peak gust of 64 mph.
High winds occurred at the Viejas Grade mesonet between 0520 and 0540 PST on the 29th, with a peak gust of 64 mph.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 30-APR-14 05:00:00 to 30-APR-14 10:00:00 (PST-8)
Magnitude: 60.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Mesonet

An Alpine mesonet (ANEC1) measured a peak wind gust of 69 mph between 0530 and 0600 PST on the 30th.
High winds occurred at the Big Black Mountain mesonet between 0530 and 0930 PST on the 30th with a peak gust of 63 mph recorded between 0737 and 0747 PST.
A peak gust of 58 mph was recorded at the Viejas mesonet station between 0510 and 0520 PST on the 30th.
Lakeshore Drive was closed 400 feet east of Vine to Lindo Lake Place due to a tree limb hanging in the street.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 30-APR-14 05:00:00 to 30-APR-14 13:00:00 (PST-8)
Magnitude: 77.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter 4 miles east of Pine Valley measured wind gust of 89 mph with three trees either snapped or uprooted. Another spotter reported multiple wind gusts estimated near 70 mph, which blew down a few trees near the top of Mt. Laguna that were 6 inches in diameter. Another spotter reported a 65 mph wind gust that knocked down small tree limbs and power.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 29-APR-14 21:00:00 to 30-APR-14 16:00:00 (PST-8)
Magnitude: 88.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Sill Hill mesonet station between 2100 and 2110 PST on the 29th and ended between 1500 and 1510 PST on the 30th. During this time, winds were sustained out of the east and east-northeast 35-65 mph with most gusts over 70 mph. Several gusts over 90 mph were recorded as well, including the peak gust of 101 mph measured between 0900 and 0910 PST on the 30th.
High winds began at the Crestwood mesonet station between 0600 and 0610 PST on the 30th and ended between 1530 and 1540 PST the same day. During this time, winds were sustained out of the northeast 40-50 mph with most gusts over 60 mph. Several gusts over 70 mph were recorded as well, including the peak gust of 76 mph measured between 0650 and 0700 PST.
High winds began at the Buckman Springs mesonet station between 0000 and 0010 PST on the 30th and ended between 1130 and 1140 PST the same day. During this time, winds were sustained out of the northeast 30-40 mph with most gusts over 60 mph. Several gusts over 75 mph were recorded as well, including the peak gust of 87 mph measured between 0800 and 0810 PST.
High winds began at the Campo ASOS between 0352 and 0452 PST on the 30th and ended between 1102 and 1152 PST the same day. During this time, winds were sustained out of the east and east-northeast 35-45 mph with a peak gust of 75 mph measured between 0752 and 0852 PST.
High winds began at the Boulder Creek mesonet station between 0050 and 0100 PST on the 30th and ended between 1100 and 1110 PST the same day. During this time, winds were sustained out of the east-northeast 35-45 mph with most gusts over 60 mph, including the peak gust of 72 mph measured between 0910 and 0920 PST.
High winds began at the Descanso (AU702) mesonet station between 0421 and 0426 PST on the 30th and ended between 0901 and 0906 PST the same day. During this time, winds were sustained out of the east-northeast 35-45 mph with a peak gust of 70 mph measured twice between 0831 and 0841 PST. Sycamore Drive was closed between Oak Grove and Elm in Descanso area. Several mesonet sites reached peak gusts of 69 mph including Lucky Five Ranch, North Boulder Creek, Viejas Grade, La Posta, Sunrise Highway, and Alpine. Several other mesonet sites reached gusts up to 67 mph. Significant damage occurred at US Border Patrol checkpoints with signs large mobile signs and trailers blown over and piled tires blown over and rolled in the wind.
Trees self pruning all over the Mountain Empire High School campus, along Buckman Springs Road, which was closed in both directions due to trees across the road. Many instances of roofing was taken down to the bare wood and a huge amount of top soil moved aloft, and one broken window at the wood shop. No direct student injuries.  The highest wind was 74 mph between 0730 and 0800 PST on the 30th, with several other gusts over 65 mph. School was closed the following day.