Tuesday, October 27, 2015

Highway 58 Flash Flood - Oct 2015

State Route 58 was closed on Thursday, October 15, 2015 due to a major mudslide located between Cameron Road overcrossing and post mile 166 at 6:07 pm. It was discovered that approximately 1 ½ miles of roadway was covered in 5-6 feet of mud. A total of 78 passenger vehicles, 2 buses, 36 trucks, 1 RV & 1 travel trailer were stuck in the mud. Emergency personnel were able to safely remove all travelers and move them to emergency shelters.

There were not any injuries or fatalities due to this mudslide on State Route 58. Caltrans removed up to 7500 cubic yards of mud and debris equivalent to 23 full olympic-size swimming pools.  The storm that hit the Tehachapi area was a 1000 year event that triggered a flash flood that flowed down the canyons onto State Route 58.
This is the Radar of the storms that hit the area on Oct 15th 2015. Notice how the storms build around Lancaster, and head NNW towards the Lake Isabella area, but collapsed before reaching the lake. This path led the storms over the Mojave area, and caused the flash flood conditions that closed Highway 58.

NWS Warnings:
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THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN KERN COUNTY IN CENTRAL CALIFORNIA...
* UNTIL 645 PM PDT
* AT 611 PM PDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 14 MILES NORTH OF ROSAMOND...OR 26 MILES NORTH OF LANCASTER...AND MOVING NORTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
MOJAVE AND JAWBONE CANYON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
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THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A FLOOD WARNING FOR...CENTRAL KERN COUNTY IN CENTRAL CALIFORNIA...
* UNTIL 715 PM PDT
* AT 410 PM PDT...DOPPLER RADAR INDICATED AREAS OF THUNDERSTORMS PRODUCING HEAVY RAIN WHICH WILL CAUSE FLOODING.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BAKERSFIELD...WASCO...ARVIN...SHAFTER...ROSAMOND...TEHACHAPI...TAFT...MARICOPA...WEEDPATCH...GOLDEN HILLS...ROSEDALE...VALLEY ACRES...SOUTH TAFT...EDWARDS AFB...LAMONT...METTLER...MCKITTRICK...STALLION SPRINGS...DUSTIN ACRES AND FORD CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES IN URBAN AREAS. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
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This is a map showing the area effected by the mudslide










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