Atlantic hurricane season

Discussion in 'Environmental Discussion' started by tochatihu, Jun 5, 2016.

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  1. bwilson4web

    bwilson4web BMW i3 and Model 3

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    If it heads to Houston, we'll see the effect in gas prices.

    Bob Wilson
     
    #121 bwilson4web, Aug 25, 2017
  2. RCO

    RCO Senior Member

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    My news brief says the offshore oil rig worker have been brought ashore already and prices are expected to rise soon.
     
    #122 RCO, Aug 25, 2017
  3. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Watching live weather radar for Galveston:
    • 5:30 AM - first light band
    • 6:30 AM - second heavy band
    • 7:30 AM - third band, very heavy band
    [​IMG]

    [​IMG]

    [​IMG]

    Bob Wilson
     
    #123 bwilson4web, Aug 25, 2017
    Last edited: Aug 25, 2017
  4. tochatihu

    tochatihu Senior Member

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    Must say that H. Harvey grew to category 4 with unusual speed. Never lasts over land though.

    Intense rain is still offshore Corpus Christi. 2.5 inches/hr surely qualifies:eek:.
     
    #124 tochatihu, Aug 25, 2017
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  5. tochatihu

    tochatihu Senior Member

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    Bad news so far. First eyewall winds have destroyed some buildings in Rockport (N. of Corpus Christi), with some perhaps having been occupied. Second eyewall winds will arrive there soon.

    Harvey is holding together and remaining strong even though half over land. Coastal plain is too darn flat!

    Power line workers from other states are preparing to mobilize. It may be a while before we scroll down to concerns about mosquitoes.
     
    #125 tochatihu, Aug 26, 2017
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  6. tochatihu

    tochatihu Senior Member

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    #126 tochatihu, Aug 26, 2017
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  7. tochatihu

    tochatihu Senior Member

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    #127 tochatihu, Aug 26, 2017
  8. wxman

    wxman Active Member

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    Convection usually occurs in the feeder bands of tropical systems, not in the central dense overcast. Any tornadoes that may occur also usually form in those convective feeder bands in the northeast (right-front) quadrant of the system.
     
    #128 wxman, Aug 26, 2017
    Last edited: Aug 26, 2017
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  9. tochatihu

    tochatihu Senior Member

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    Rockport and Port Aransas have damage to structures and other property. Wind damage appears to have completed.

    Power outages to <150,000 customers apparently.

    Rainfall has exceeded 6 inches in areas small compared to predictions for this (stalled inland) system. Appears to me that models are not 'backing off' from that. So, some may wish to look at river levels to see how that water is returning to sea over following days:

    Advanced Hydrologic Prediction Service: Corpus Christi
     
    #129 tochatihu, Aug 26, 2017
  10. bwilson4web

    bwilson4web BMW i3 and Model 3

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    The western shore of Galveston Bay has taken a real beating. Band after band in that area.

    Bob Wilson
     
    #130 bwilson4web, Aug 27, 2017
  11. tochatihu

    tochatihu Senior Member

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    TX coast is getting heavily watered and it has not ended. But I do not see large inland area getting to 20-ish inches rain as predicted.

    Happy about that, don't get me wrong. But for this to be more than a coastal-trashing storm, inland rain would need to increase.
     
    #131 tochatihu, Aug 27, 2017
  12. bwilson4web

    bwilson4web BMW i3 and Model 3

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    I've noticed Galveston really got hit but it could be an artifact of the rain shielded radar. The radar signal can be attenuated by rain giving a smaller signal further away:
    [​IMG]

    A question for @wxman, what sort of rain gauges would be there to map out the regional rain?

    Bob Wilson
     
    #132 bwilson4web, Aug 27, 2017
  13. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Johnson Space Flight Center is located southeast of Houston and subject to flooding under pretty much any high rain event. Harvey has been beating this area for days with high rain and wind-blown, high tides.

    Typically, NASA closes the center and evacuates staff. Then when conditions allow, an emergency evaluation crew comes in to figure out how to restore power and operations. Pure speculation, this could take a while and a lot of money. There are unique, national space resources at JSC such as the water tank for EV practice.

    Bob Wilson
     
    #133 bwilson4web, Aug 27, 2017
  14. wxman

    wxman Active Member

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    There's a METAR map that I use on a regular basis. The U.S. map is available at CWSU National TAF METAR maps - NOAA NWS and the East Texas map is available at http://www.wrh.noaa.gov/zoa/mwmap2.php?map=zhu . You can drill down even further by clicking on that map. You can also click on any METAR site and get a whole array of wx data, including 5-min precip amounts. For example, IAH (Houston Intercontinental Airport) has had 13.43 inches in last 24 hours, with an additional 0.89 inches since the 24-hour total was calculated.

    Looks like many of the ASOS/AWOS sites have been taken out by Harvey near landfall (note large area of no data).
     
    #134 wxman, Aug 27, 2017
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  15. bisco

    bisco cookie crumbler

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    we've had an historical stretch of beautiful weather, low 70's and mostly sunny for weeks, and weeks forecast ahead. almost drought conditions after a very rainy spring and early summer.
     
    #135 bisco, Aug 27, 2017
  16. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Johnson Space Center (JSC) also has a 24x7 control center to monitor and communicate with the International Space Station (ISS). There is a backup center, Huntsville Operations Space Center (HOSC) that also works 24x7 and now would be primary.

    Marshall Space Flight Center (MSFC) has an emergency, RV/utility truck. It has antenna for satellite communications and an extendable tower to create a local area network for phones and data. It usually heads near the area as the storm develops.

    There are two other NASA facilities:
    • Michoud Assembly Facility (MS) - located on a river to support barge transportation of space assemblies
    • Stennis Space Center (MS) - primary engine testing facility and a co-located, NASA help center
    It will be a long haul but the refineries are still at risk. The one's I've seen have water barriers and independent power. The problem is they need staff to operate the emergency pumps and systems to preserve the refinery. That is pretty hard to do when the area floods.

    Bob Wilson
     
    #136 bwilson4web, Aug 27, 2017
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  17. tochatihu

    tochatihu Senior Member

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    Hurricane Harvey will be one for history books. Steering currents said "hey not me", and center of rotation has lingered near to coast for an unusually long time and brought a lot of rain onshore.

    Houston area is (so far!) the most affected after initial high-wind damage further south. So much rain. Evacuation was not proposed and that will be argued for sure, but essence of Harvey was late rapid intensification and lack of 'steering guidance'. I don't know of a similar prior.

    Houston is now hoping for center of circulation to move NE, leaving them on the drier side. That would, even so, leave them above any previous watering. In a broad sense I suppose we may not have thought enough about how how coastal-lingering storms can interact with coastal populations and infrastructures. Hurricanes always seem to be 'going somewhere' - but what if they are not?

    Houston area will be as a large new lake for days at least. This will strongly impede assistance brought in, even as that is being fully offered.

    Coastal areas NE of Houston may develop their own new large lakes in next few days and they are no better prepared for such.

    Hoping that soon this irritating center of circulation will finally go inland and its marine water supply fails.
     
    #137 tochatihu, Aug 28, 2017
    Last edited: Aug 28, 2017
  18. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Local TV weather reports are the center is moving back over the Gulf.

    Bob Wilson
     
    #138 bwilson4web, Aug 28, 2017
  19. tochatihu

    tochatihu Senior Member

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    #139 tochatihu, Aug 28, 2017
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  20. bwilson4web

    bwilson4web BMW i3 and Model 3

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    I predict Harvey in Houston will increase hispanic construction workers.

    Bob Wilson
     
    #140 bwilson4web, Aug 28, 2017
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