re: Hurricane Florence - Catastrophic Flooding Potential

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Rather ominous alert for St Tammany

[quote]Tropical Storm WarningAlert:...STORM SURGE WARNING REMAINS IN EFFECT... ...TROPICAL STORM WARNING REMAINS IN EFFECT... * LOCATIONS AFFECTED - Slidell - Mandeville - Covington * WIND - LATEST LOCAL FORECAST: Equivalent Strong Tropical Storm force wind - Peak Wind Forecast: 45-60 mph with gusts to 75 mph - Window for Tropical Storm force winds: Tuesday evening until Wednesday afternoon - POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for wind 74 to 110 mph - The wind threat has increased from the previous assessment. - PLAN: Plan for life-threatening wind of equivalent CAT 1 or 2 hurricane force due to possible forecast changes in track, size, or intensity. - PREPARE: Remaining efforts to protect life and property should be urgently completed. Prepare for considerable wind damage. - ACT: Move to safe shelter before the wind becomes hazardous. - POTENTIAL IMPACTS: Extensive - Considerable roof damage to sturdy buildings, with some having window, door, and garage door failures leading to structural damage. Mobile homes severely damaged, with some destroyed. Damage accentuated by airborne projectiles. Locations may be uninhabitable for weeks. - Many large trees snapped or uprooted along with fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. Several bridges, causeways, and access routes impassable. - Large areas with power and communications outages. * STORM SURGE - LATEST LOCAL FORECAST: Life-threatening storm surge possible - Peak Storm Surge Inundation: The potential for 3-5 feet above ground somewhere within surge prone areas - Window of concern: early Tuesday evening until early Wednesday evening - POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for storm surge flooding greater than 3 feet above ground - The storm surge threat has increased from the previous assessment. - PLAN: Plan for life-threatening storm surge flooding of greater than 3 feet above ground. - PREPARE: Evacuation efforts and flood preparations should soon be brought to completion before conditions become unsafe. - ACT: Leave immediately if evacuation orders are given for your area to avoid being cut off from emergency services or needlessly risk lives. - POTENTIAL IMPACTS: Significant - Areas of inundation from storm surge flooding. Damage to several buildings, mainly near Lake Pontchartrain - Sections of near-shore escape routes and secondary roads become weakened or washed out, especially in usually vulnerable low spots. - Moderate damage to marinas, docks, boardwalks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages. * FLOODING RAIN - LATEST LOCAL FORECAST: Flash Flood Watch is in effect - Peak Rainfall Amounts: Additional 3-6 inches, with locally higher amounts - POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for moderate flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for moderate flooding from heavy rain. Evacuations and rescues are possible. - PREPARE: Consider protective actions if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action may result in serious injury or loss of life. - POTENTIAL IMPACTS: Significant - Moderate rainfall flooding may prompt several evacuations and rescues. - Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals, and ditches overflow. - Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures. * TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes - POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for a few tornadoes - The tornado threat has increased from the previous assessment. - PLAN: Emergency plans should include the potential for a few tornadoes. - PREPARE: If your shelter is particularly vulnerable to tornadoes, prepare to relocate to safe shelter before hazardous weather arrives. - ACT: If a tornado warning is issued, be ready to shelter quickly. - POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. * FOR MORE INFORMATION: - LINK ]

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Who the frick authorized that to be issued?

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Because that work still has to be made up at some point. At least from the perspective of someone who works at a HS.

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if this storm goes to the east of BR, what kind of winds are we expecting?

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