Sandbags and webbing are seen on a small hill in front of a house burned to the ground in the Thomas Fire during a winter rain storm in Ventura, California, U.S. January 9, 2018. REUTERS/Monica Almeida 

Flowers bloom on a barricade of sandbags at the U.N. buffer zone in Nicosia, Cyprus March 27, 2017. REUTERS/Yiannis Kourtoglou 

San Diego police officers help load sand bags into civilians vehicles as the city helps residents deal with El Niño-strengthened storms in San Diego,California January 7, 2016.REUTERS/Mike Blake

San Diego police officers help load sand bags into civilians vehicles as the city helps residents deal with El Niño-strengthened storms in San Diego,California January 7, 2016.REUTERS/Mike Blake

Urban Corps of San Diego help fill and distribute sand bags as the city helps residents deal with El Niño-strengthened storms in San Diego, California January 7, 2016.REUTERS/Mike Blake TPX IMAGES OF THE DAY

Workers clean up the parking garage in an apartment building after an El Nino-strengthened storm caused flooding in Ocean Beach, California January 7, 2016. REUTERS/Mike Blake

Sand bags protect the door of a closed coffee shop as floodwaters recede after an El Nino-strengthened storm flooded parts of Ocean Beach, California January 7, 2016. REUTERS/Mike Blake 

Volunteers prepare to transport sandbags which will be used to protect homes from flooding, following several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers fill sandbags which will be used to protect homes from flooding, after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers prepare to transport sandbags which will be used to protect homes from flooding, following several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers fill sandbags which will be used to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers fill sandbags which will be used to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers bring a sump pump to a basement after days of heavy rain led to flooding in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers fill sandbags which will be used to protect homes from flooding, after days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers prepare to transport sandbags which will be used to protect homes from flooding, after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers preparing to transport sandbags which will be used to protect homes from flooding, following several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers fill sandbags which will be used to protect homes from flooding, after days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers prepare to transport sandbags which will be used to protect homes from flooding, following several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsc 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers create a wall of sandbags to protect homes from flooding after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers set up a wall of sandbags and series of pumps to create a barricade preventing the rising water from flooding a home after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers set up a wall of sandbags and series of pumps to create a barricade preventing the rising water from flooding a home after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Volunteers set up a wall of sandbags and series of pumps to create a barricade preventing the rising water from flooding a home after several days of heavy rain in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

A wall of sandbags and series of pumps are set up to create a barricade to prevent the rising water from flooding a home, following several days of heavy rain, in Arnold, Missouri December 30, 2015. REUTERS/Kate Munsch 

Submerged roads and houses are seen after several days of heavy rain led to flooding, in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

Sandbags are seen near submerged roads and houses after several days of heavy rain led to flooding in Arnold, Missouri, December 30, 2015. REUTERS/Kate Munsch 

A man wades through a flooded street while carrying a sandbag in Dumfries, Scotland December 30, 2015. REUTERS/Darren Staples 

A man carries a sandbag to protect homes from flooding in Dumfries, Scotland, December 30, 2015. REUTERS/Darren Staples 

A resident stands next to sandbags and his belongings after flood waters receded on Huntington Road in York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Members of the army provide sandbags to flood affected areas of York, Britain December 29, 2015. REUTERS/Andrew Yates 

Residents are pictured on Huntington Road after flood waters receded in York, Britain December 29, 2015. REUTERS/Andrew Yates 

A resident cleans up after flood waters receded on Huntington Road in York, Britain December 29, 2015. REUTERS/Andrew Yates 

Britain's Prime Minister David Cameron (3rd R) chats to soldiers and volunteers filling sand bags to assist with flood relief in York, in northern England, December 28, 2015. REUTERS/Darren Staples

Soldiers and volunteers fill sand bags to assist with flood relief in York, in northern England, December 28, 2015. REUTERS/Darren Staples

Britain's Prime Minister David Cameron (2nd L) chats to soldiers and volunteers filling sand bags to assist with flood relief in York, in northern England, December 28, 2015. REUTERS/Darren Staples

Soldiers and volunteers fill sand bags to assist with flood relief in York, in northern England, December 28, 2015. REUTERS/Darren Staples

Britain's Prime Minister David Cameron (2nd L) chats to soldiers and volunteers filling sand bags to assist with flood relief in York, in northern England, December 28, 2015. REUTERS/Darren Staples

A sign to customers is seen infront of Christmas decorations in a sand bagged business in Cockermouth, north west England, December 7, 2015. Severe flooding in northwest England has left thousands of homes without power for a second day. REUTERS/Andrew Yates 

Sandbags for flood mitigation sit on a roadway near the flooded waters of the Stillaguamish River in Stanwood, Washington November 18, 2015. At least three people were killed and about 250,000 homes and businesses were without power in Washington state on Wednesday after a storm blew down trees and triggered mudslides, authorities said. REUTERS/David Ryder 

A fighter from the Free Syrian Army's Al Rahman legion takes up a position behind sandbags piled up on the frontline against the forces of Syria's President Bashar al-Assad in Jobar, a suburb of Damascus, Syria July 27, 2015. REUTERS/Bassam Khabieh 

A fighter from the Free Syrian Army's Al Rahman legion fires his weapon on the frontline against the forces of Syria's President Bashar al-Assad in Jobar, a suburb of Damascus, Syria July 27, 2015. REUTERS/Bassam Khabieh 

Farmers stack sandbags into Tharakam canal in an attempt to slow down water flow in Suphan Buri province, west of Bangkok, Thailand July 10, 2015. In Thailand's central province of Suphan Buri farmers are becoming increasingly desperate for water to irrigate their parched fields as the rice-producing nation suffers its worst drought in more than a decade. The wet or monsoon season is underway, but Thailand is contending with drought conditions in seven out of 67 provinces, according to Thailand's National Disaster Warning Center, and water rationing is taking place in almost a third of the country as an El Nino-fueled drought dries the land. REUTERS/Chaiwat Subprasom 

Rebel fighters from the Ahrar al-Sham Islamic Movement take positions behind sandbags in Jabal al-Arbaeen, which overlooks the northern town of Ariha, one of the last government strongholds in the Idlib province May 26, 2015. REUTERS/Khalil Ashawi 

A rebel fighter takes position behind sandbags in Aleppo's Al-Ezaa neighbourhood May 20, 2015. REUTERS/Hosam Katan 

A member of the Iraqi security forces checks his weapon in Tikrit March 30, 2015. Iraqi security forces continued their offensive against Islamic State militants on the outskirts of Tikrit on Monday, in an operation slowed by bombs and booby traps. REUTERS/Alaa Al-Marjani TPX IMAGES OF THE DAY

A rebel fighter of al-Jabha al-Shamiya (the Shamiya Front) fires his weapon at the frontline against Islamic State fighters on the outskirts of Mare town, north of Aleppo March 24, 2015. REUTERS/Sultan Kitaz 

A general view shows a damaged street with sandbags used as barriers in Aleppo's Saif al-Dawla district March 6, 2015. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

A mannequin dressed to look like a fighter, is seen near piled sandbags at the frontline against forces loyal to Syria's President Bashar al-Assad in the old city of Aleppo December 23, 2014. REUTERS/Abdalrhman Ismail (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) 

Rebel fighters from the Free Syrian Army's Al Rahman legion move along a trench in Jobar, a suburb of Damascus December 22, 2014. REUTERS/Bassam Khabieh (SYRIA - Tags: CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

Larry Miceli carries sandbags as he prepares his house for possible flooding following a massive snow storm in West Seneca, New York November 24, 2014. Emergency workers filled thousands of sandbags on Sunday as the area around Buffalo, New York braced for potential flooding as warming temperatures began to melt up to seven feet (2 metres) of snow. REUTERS/Mark Blinch (UNITED STATES - Tags: ENVIRONMENT) 

A Free Syrian Army fighter sits in a shooting position behind sandbags, during clashes with forces loyal to Syria's President Bashar al-Assad at the Karam Barre frontline, beside Al-Maysar neighbourhood of Aleppo November 2, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)