HURRICANE HARVEY FOURTH DAY AFTER LANDFALL. Part 1. TUESDAY, AUG. 29 Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA lecture by Walter Hays Uploading date: August 29, 2017 More lectures at Disasters Supercourse - http://www.pitt.edu/~super1/disasters/BADisasterSupercourse.htm PPT original - http://www.pitt.edu/~super7/55011-56001/55611.ppt Part 2 of this lecture - http://www.pitt.edu/~super1/lecture/lec55621/index.htm

THE USA HAS NEVER SEEN ANOTHER HURRICANE LIKE HARVEY THAT MADE LANDFALL AS A CAT 4 HURRICANE AND THEN JUST SAT THERE FOR 3 DAYS, DUMPING 9 TRILLION+ GALLONS OF RAIN THAT HAD NO PLACE TO GO EXCEPT TO FLOOD CITIES.

NOW, THE AREA UNDER WATER IS AN AREA THE SIZE OF NEW YORK TO BOSTON

GREAT TIMING: PRESIDENT TRUMP SIGNED A DISASTER DECLARATION TO FACILITATE PROVISION OF FEDERAL AID FOR THE IMPACTED AREA BEFORE THE STORM MADE LANDFALL IN TEXAS ON FRIDAY, AUG. 25th

AUGUST 25, 2017: HARVEY MADE LANDFALL AROUND 9:45 pm HARVEY – A HUGE RAINMAKER AND STORM-SURGE MAKER, MADE LANDFALL NEAR CORPUS CHRISTI, TX AS A CAT 4 HURRICANE WITH 130 MPH WINDS; IT QUICKLY DETEORIATED TO A CAT 1 STORM AND STALLED IN PLACE DUE TO THE LACK OF CONTROLLING STEERING WINDS.

LONG-TERM FORECAST OF IMPACTS INTO AUGUST 30th

MONDAY, AUGUST 28 Day 3 After Landfall: Summary: Incredible Rainfall Caused Catastrophic VERY RAPID Flooding in Houston, isolating it internally and externally

UNPREPARED: YOU CAN NOT PREPARE FOR A CAT 4 HURRICANE THAT STALLS JUST AFTER LANDFALL NEAR LARGE CITIES PRONE TO FLOODING AND BECOMES A CONTINUOUS RAINMAKER FOR 4-5 DAYS.

WHAT HAPPENED: Rainfall totals were staggering WHAT HAPPENED: Rainfall totals were staggering. The National Hurricane Center said that an automated rain gauge near Victoria, a city of about 68,000 in the vicinity of the landfall, recorded more than 40 cm (16 inches) in 24 hours

PUBLIC THINKING NOW HARVEY IS NOW THE STORM OF 2017, AND OF THE DECADE, AND TIME WILL LIKELY SHOW THAT IT WAS ALSO THE CAUSE OF THE USA’s WORST CATASTROPHIC FLOOD DISASTER IN HISTORY.

HOUSTON’s STREETS AND BAYOUS WERE TURNED INTO RIVERS AT OR NEAR FLOOD-STAGE IN A MATTER OF MINUTES TO A FEW HOURS OR FEW DAYS

HARVEY, WITH A STALLED CENTER OF CIRCULATION, WAS DUMPING RAIN ON HOUSTON AT RATE OF 15 CM/HOUR (6 IN/HOUR), CAUSING IT AND OTHER NEAR-BY CITIES TO BECOME IMPASSABLE BY CAR AND ISOLATED FROM EACH OTHER

DOWNTOWN HOUSTON: FLOODED

HOUSTON: NEIGHBOR-HOODS FLOODED

HOUSTON: NEIGHBOR-HOODS FLOODED

ROADS ALMOST IMPASSABLE

ROADS ALMOST IMPASSABLE

FLOODED INTERSTATE 225

FLOODED INTERSTATE HIGHWAY 610

NEW RISK: GIANT SINKHOLES ARE OPENING UNDER SOME HIGHWAYS

A RESCUE

INTERSTATE 610 FLOODED

A RESCUE OF ELDERLY ASSISTED LIVING RESIDENT

FLOODED HIGHWAY AND RESCUES

FLOODED HIGHWAY AND RESCUE

TUESDAY, AUGUST 29 Day 4 After Landfall: Summary: TEXANS HELPING TEXANS and USA HELPING TEXANS as Incredible Rainfall Continues, Increasing Risk in Texas and now Louisiana

HARVEY IS REPORTED TO HAVE NOW DUMPED MORE THAN 9 TRILLION GALLONS OF RAIN A GOOD FRACTION OF WHICH WAS IN THE HOUSTON AREA, WITH MORE TO COME.

IMPACT: EVACUEES CAN NOT RETURN; THOSE STILL IN HOUSTON CAN NOT LEAVE EXCEPT BY BOAT OR HELICOPTER WITHOUT POSSIBLE LOSS OF LIFE

TEXANS ARE HELPING TEXANS AND ALL 50 STATES OF THE USA ARE HELPING TEXANS IN AN AREA THE SIZE OF NEW YORK TO BOSTON THAT IS NOW UNDER WATER

THOUSANDS OF EMERGENCY RESPONDERS ARE JOINING WITH THE AMERICAN RED CROSS AND OTHERS AND TEXAN VOLUNTEERS TO PROVIDE SUPPLIES OF ALL KINDS AND WITH BOATS AND HELICOPTERS TO CONDUCT URBAN SEARCH AND RESCUE OPERATIONS.

STATE OFFICIALS ARE STILL RECEIVING 2,000 EMERGENCY 911 CALLS PER HOUR AND TWEETS FROM PEOPLE WANTING TO BE RESCUED FROM CARS, HOMES, NURSING HOMES, ETC, THAT ARE AT RISK FROM RAPIDLY RISING FLOOD WATERS

HEAVY RAINFALL IS EXPECTED TO CONTINUE FOR 2-3 DAYS BECAUSE HARVEY’S CENTER OF CIRCULATION IS STILL STALLED AND BEING ENERGIZED BY THE WARM GULF WATER AND THE WARM LAND; AND WORSENING IF IT MOVES AND MAKES LANDFALL AGAIN.

NEW RISK: CORPS OF ENGINEERS IS NOW RELEASING WATER IN A CONTROLLED WAY FROM TWO DAMS NORTH OF HOUSTON; ADDING TO THE WATER AVAILABLE TO FLOOD HOUSTON.

NEW RISK: CONROE TX IS NOW FACING POSSIBLE FLOODING AS THE SAN JACINTO RIVER OVERFLOWS ITS BANKS; CREATING THE POSSIBILITY OF A SECOND SURGE OF FLOODING IN HOUSTON AND OTHER CITIES.

RESCUES Emergency responders have completed more than 5,000 high-water rescues. The Coast Guard now has one-half of its helicopter fleet doing rescues in Houston area. Texas has dispatched all of its National Guard

40,000+ NOW RELOCATED TO FEMA SHELTERS

DEATH TOLL AT 11 NOW, BUT COULD RISE QUICKLY: 6 PEOPLE ARE REPORTED TO HAVE DIED ON MONDAY TRYING TO DRIVE THROUGH THE HIGH WATER.

BOTH HOUSTON AIRPORTS STILL CLOSED

HOUSTON WATER PLANT WAS COMPLETELY SUBMERGED FOR A PERIOD OF TIME.

250 HIGHWAY SYSTEMS IN HOUSTON ARE STILL CLOSED

PETS ARE INCLUDED IN RESCUE OPERATIONS

ALIGATORS FOUND IN SOME LOCATIONS

UNEXPECTED RISK: 20,000 PASSENGERS ARE STRANDED ON CRUISE SHIPS IN GULF OF MEXICO WAITING FOR PORT OF GALVESTON TO BE OPERABLE

NEW RISK: LOUISIANA IS NOW RECEIVING SIGNIFICANT RAINFALL AS A RESULT OF HARVEY THAT COULD ALSO CAUSE FLOODING.

NOW,100 BILLION DOLLARS+ IN LOSSES?? OIL REFINERIES AND PIPELINES SHUT DOWM FOR INDEFINITE PERIOD. BUSINESSES SHUT DOWN FOR LONG PERIODS. THOUSANDS OF HOMES NEEDING REHABILITATION/DEMOLITION MANY AREAS WILL BE UNINHABIT-ABAL FOR MONTHS TO YEARS

NOW,100 BILLION DOLLARS+ IN LOSSES?? RESTORATION OF HIGHWAYS, INTERSTATE FREEWAY SYSTEMS, AND BRIDGES RESTORATION OF WATER SYSTEMS RESTORATION OF AIRPORTS RESTORATION OF HOSPITALS RESTORATION OF SCHOOLS AND UNIVERSITIES