Surface high pressure over the Great Basin brought very strong and gusty northeast to east winds and hot weather from the 12th through the 14th, before the winds finally decreased. The hardest hit areas were the mountains and western foothills of Riverside and San Diego County. The gusty winds downed countless trees, power lines and blew tiles from roofs. The winds also helped to fuel and spread nearly a dozen wildfires in San Diego County alone. The hot weather even spawned a damaging dust devil early on, before the winds really got going.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 14-MAY-14 01:00:00 to 14-MAY-14 12:00:00 (PST-8)
Magnitude: 76.00 MG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Big Black Mountain mesonet between 0107-0117 PST on the 14th and ended between 1037-1047 PST that morning. During this time, winds were sustained out of the east at 50-70 mph with gusts mostly over 65 mph, including the peak gust of 87 mph, recorded between 0537-0547 PST. High winds began at the Hellhole Canyon mesonet between 0640-0650 PST on the 14th and ended between 1030-1040 PST that morning. During this time, winds were sustained out of the east-northeast at 30-40 mph with gusts over 60 mph, including the peak gust of 75 mph, recorded between 0920-0930 PST. These winds eventually made it down to the Bonsall area, downing a power line. High winds began at the Alpine RAWS between 0352-0452 PST on the 14th and ended between 1052-1152 PST that morning. During this time, winds were sustained out of the east-northeast at 35-40 mph with gusts over 65 mph, including the peak gust of 69 mph, recorded between 0752-0852 PST. The Alpine Fire department reported part of a carport roof being blown off by the strong winds around 0930 PST. High winds began at the Dye Mountain mesonet between 00430-0440 PST on the 14th and ended between 0930-0940 PST that morning. During this time, winds were sustained out of the east-northeast at 35-40 mph with gusts off an on over 58 mph, including the peak gust of 63 mph, recorded between 0450-0500 PST. High winds occurred at the County Estates mesonet between 0910-0930 PST on the 14th with a peak gust of 64 mph out of the east during that time. A nearby spotter reported a 2.5 inch tree limb fell while wind had been gusting to 50 mph.

High Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 14-MAY-14 06:00:00 to 14-MAY-14 12:30:00 (PST-8)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds began at the Highland Springs RAWS between 0615-0715 PST on the 14th and ended between 1116-1216 PST the same day. During this time, winds were sustained out of the east at 30-45 mph with gusts around 60 mph. A peak gust of 68 mph was recorded between 0716-0816 PST.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 13-MAY-14 19:00:00 to 14-MAY-14 13:00:00 (PST-8)
Magnitude: 75.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Sill Hill SDGE mesonet between 1940-1950 PST on the 13th and ended between 1250-1300 PST on the 14th. During this time, winds were sustained out of the east at 45-55 mph with gusts over 65 mph, including the peak gust of 86 mph recorded between 0700-0710 PST on the 14th. High winds began at the Viejas Grade SDGE mesonet between 0600-0610 PST on the 14th. During this time, winds were sustained out of the east-northeast at 30-40 mph with gusts over 60 mph, including the peak gust of 77 mph recorded between 0830-0840 PST. High winds began at the North Descanso SDGE mesonet between 0530-0540 PST on the 14th. During this time, winds were sustained out of the east at 30-40 mph with gusts off and on over 58 mph, including the peak gust of 64 mph recorded between 0850-0900 PST. High winds occurred at the West Santa Ysabel SDGE mesonet between 0740-0850 PST on the 14th, with sustained easterly winds of 30-35 mph and a peak gust of 63 mph during that time. High winds occurred at the Buckman Springs SDGE mesonet between 0740-0850 PST on the 14th, with sustained northeasterly winds of 30-35 mph and a peak gust of 61 mph during that time.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 12-MAY-14 05:30:00 to 12-MAY-14 09:30:00 (PST-8)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Sill Hill mesonet between 0540-0550 PST and ended between 0910-0920 PST on the 12th. During this time, winds were sustained out of the east at 35-40 mph with gusts off and on over 60 mph. The peak gust of 70 mph was measured between 0610-0620 PST.

Strong Wind in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 13-MAY-14 04:00:00 to 13-MAY-14 06:00:00 (PST-8)
Magnitude: 48.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A ham operator reported strong winds blew off one-quarter of the tiles from a structure just northwest of Hemet.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 13-MAY-14 07:30:00 to 13-MAY-14 08:30:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A peak wind gust of 61 mph out of the east was recorded at the Pleasants Peak mesonet between 0731-0801 PST.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 12-MAY-14 04:00:00 to 12-MAY-14 05:30:00 (PST-8)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Pleasants Peak mesonet recorded a peak wind gust out of 58 mph out of the east-northeast between 0430-0500 PST on the 12th.

High Wind in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 14-MAY-14 06:30:00 to 14-MAY-14 09:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds occurred at the Pleasants Peak mesonet between 0630-0900 PST on the 14th. Winds were sustained out of the east to east-northeast at 30-45 mph with gusts over 65 mph, including the peak gust of 65 mph recorded between 0700-0730 PST.

High Wind in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 13-MAY-14 07:00:00 to 13-MAY-14 10:00:00 (PST-8)
Magnitude: 63.00 MG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Mesonet

High winds occurred at the Otay Mountain mesonet between 0700-0820 PST on the 13th, with a peak gust of 61 mph recorded twice during that time period. High winds occurred at the Big Black Mountain mesonet between 0707-0957 PST on the 13th, with winds sustained out of the east at 45-60 mph and several gusts over 65 mph, including a peak gust of 72 mph recorded between 0817-0827 PST. High winds occurred at the Round Potrero mesonet between 0600-0920 PST on the 13th, with winds sustained out of the east at 40-45 mph and a few gusts over 60 mph, including a peak gust of 63 mph recorded between 0910-0920 PST. High winds occurred at the Alpine RAWS between 0552-0752 PST on the 13th, with a peak gust of 63 mph recorded near the beginning of that time period. In San Marcos, a storm chaser reported strong winds blowing down a 20-foot section of wooden fence.

High Wind in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 13-MAY-14 02:30:00 to 13-MAY-14 15:30:00 (PST-8)
Magnitude: 76.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds began at the Sill Hill SDGE mesonet between 0240-0300 PST on the 13th and ended between 1500-1510 PST that afternoon. During this time, winds were sustained out of the east at 40-50 mph and gusting mostly above 65 mph with several over 75 mph. The peak gust of 87 mph was recorded between 0350-0400 PST. High winds began at the Boulder Creek SDGE mesonet between 0540-0550 PST on the 13th and ended between 0850-0900 PST that morning. During this time, winds were sustained out of the east-northeast at 30-35 mph, with a few gusts over 58 mph, including the peak gust of 64 mph, recorded between 0540-0550 PST. High winds began at the Lucky Five Ranch SDGE mesonet between 0420-0430 PST on the 13th and ended between 0940-0950 PST that morning. During this time, winds were sustained out of the east-northeast at 35-45 mph and gusting above 58 mph. A peak gust of 63 mph was recorded between 0540-0550 PST. High winds occurred at the Inaja Park mesonet between 0540-0640 PST on the 13th, with a peak gust of 62 mph recorded near the beginning of that time period. The Viejas Grade mesonet recorded two peak gusts, one of 58 mph and the other of 61 mph, between 0540-0920 PST on the 13th. The Dye Mountain and West Santa Ysabel mesonets each recorded a peak gust of 58 mph out of the east between 0530-0700 PST on the 13th.

Dust Devil in ORANGE, CALIFORNIA
From 12-MAY-14 14:00:00 to 12-MAY-14 14:30:00 (PST-8)
Location: FULLERTON
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Public

Public reported a dust devil near Fullerton that came abruptly out of the west carrying large amounts of dust and leaves, and damaged portions of roof shingles on a few homes with estimated wind gusts of 60 mph.