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jasons

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About jasons

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KIAH
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  • Location:
    Spring, Texas

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  1. This is an interesting thread/topic. It brings back some old childhood memories - like the charts on the Publix bags - I remember those. I have some charts from the 80's - 90's from Tampa - the WTVT charts with Roy Leep (and scud the dog). Since I moved to Houston, I save one of the charts every year, usually the ABC 13 ones because they are still the old style large pamphlets. I may have some with Dr. Neil Frank from his KHOU days. Anyway, if you have a site where these are scanned, I'd love to see some. Cool stuff!
  2. jasons

    Hurricane Maria

    913mb Product: Air Force Vortex Message (URNT12 KNHC)Transmitted: 19th day of the month at 21:29ZAgency: United States Air Force Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5303 Storm Number & Year: 15 in 2017Storm Name: Maria (flight in the North Atlantic basin)Mission Number: 5Observation Number: 17 ( See all messages of this type for this mission. )A. Time of Center Fix: 19th day of the month at 21:12:30ZB. Center Fix Coordinates: 16°46'N 63°58'W (16.7667N 63.9667W)B. Center Fix Location: 179 statute miles (288 km) to the SE (129°) from San Juan, Puerto Rico (U.S.).C. Minimum Height at Standard Level: 2,356m (7,730ft) at 700mbD. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 137kts (~ 157.7mph)E. Location of the Estimated Maximum Surface Wind Inbound: 7 nautical miles (8 statute miles) to the NNE (21°) of center fixF. Maximum Flight Level Wind Inbound: From 102° at 148kts (From the ESE at ~ 170.3mph)G. Location of Maximum Flight Level Wind Inbound: 7 nautical miles (8 statute miles) to the NNE (21°) of center fixH. Minimum Sea Level Pressure: 913mb (26.96 inHg)I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 13°C (55°F) at a pressure alt. of 3,045m (9,990ft)J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 21°C (70°F) at a pressure alt. of 3,040m (9,974ft)K. Dewpoint Temp (collected at same location as temp inside eye): 12°C (54°F)K. Sea Surface Temp (collected at same location as temp inside eye): Not AvailableL. Eye Character: Closed M. Eye Shape & Diameter: Circular with a diameter of 10 nautical miles (12 statute miles)N. Fix Determined By: Penetration, Radar, Wind, Pressure and TemperatureN. Fix Level: 700mbO. Navigational Fix Accuracy: 0.02 nautical milesO. Meteorological Accuracy: 0.5 nautical milesRemarks Section:Maximum Flight Level Wind: 148kts (~ 170.3mph) which was observed 7 nautical miles to the NNE (21°) from the flight level center at 21:10:30ZDropsonde Surface Wind at Center: From 15° at 5kts (From the NNE at 6mph)
  3. jasons

    Major Hurricane Irma- STORM MODE

    This was sent to me about an hour ago, sorry for the delay. This is from Jeff Lindner with the HCFCD:
  4. jasons

    Major Hurricane Irma- STORM MODE

    109mph gust in Broward.
  5. jasons

    Major Hurricane Irma- STORM MODE

    Didn't have time to read the whole discussion, but there were some posts overnight of 'what's happening to the eye'. At one point I woke-up and saw a satellite loop, and to me it looked like a case of some dry air ingestion disrupted the core. And that also explains the sorta 'half hurricane' look on radar. Seen it many times with land-falling hurricanes on the Gulf Coast (look at Rita and others). Irma is in an odd state because she has competing negative (dry air, increasing shear) and positive (jet fuel) factors at the moment. Never underestimate the damage dry air can do to a storm. Strong storms can shake off some of it for awhile, but when it's persistent and wraps into the storm, it starts to win-out over time.
  6. jasons

    Major Hurricane Irma- STORM MODE

    Not exactly. They do re-position the cranes to be as parallel to the wind as possible. There was some news coverage about this a couple of days ago.
  7. jasons

    Major Hurricane Irma- STORM MODE

    Dare I say it, but the death toll in the US may exceed the islands.
  8. jasons

    Major Hurricane Irma- STORM MODE

    At least as of now, the outflow is expanding nicely in all quadrants.
  9. jasons

    Major Hurricane Irma- STORM MODE

    http://www.tampabay.com/news/weather/hurricanes/tampa-bay-area-rated-nations-most-vulnerable-to-hurricane-storm-surge/2249075 Of the eight most vulnerable cities in the United States, KCC's analysis put four in Florida, three on the Gulf Coast: Tampa; Miami (No. 4, with $80 billion in potential losses); Fort Myers (No. 5, with $70 billion in potential losses); and Sarasota (No. 7, with $50 billion in potential losses).
  10. jasons

    Major Hurricane Irma- STORM MODE

    Even thought the eye has been offshore for several hours, it's only just now that the entire core is offshore, unimpeded by land friction, and has all that warm water for fuel. I really don't see any reason why Irma cannot further deepen until she hits the shear, which is still a ways off. Plenty of time to get back to a Cat 4. The surge will be beyond imagination.
  11. jasons

    Major Hurricane Irma- STORM MODE

    There is also GRLevel2 for Level II data. I use both. 3_2 is nice because it automatically loads the backgrounds for you. GR2 provides better resolution but you have to upload your own backgrounds, old school. Now if he would just re-write GR2 to have those backgrounds too... FWIW that's how I got the LSR out of MIA Int'l. They pop-up immediately. You can add all sorts of data points and overlays, including models and the NHC forecast. I tend to use GR3_2 for all the data points (winds, warnings, etc.) and leave GR2 clean with just my radar feed.
  12. jasons

    Major Hurricane Irma- STORM MODE

    Saw this posted elsewhere, this is the kind of creepy stuff we saw before IKE:
  13. jasons

    Major Hurricane Irma- STORM MODE

    Already a 75mph gust at MIA Int'l.
  14. jasons

    Major Hurricane Irma- STORM MODE

    Worst case for Tampa would be a LF near Tarpon Springs, like the 1921 storm, just north of the bay. Have to thread a needle for that to happen. And yes, as the WaPost Article illustrates, Tampa is one of the top surge-prone metros in the in the US. I remember back in the 80's (or 90's), Roy Leep (retired) from WTVT did a TV special about this. Tampa Bay, NOLA, NYC, & Houston-Galveston are the 'big 4' potential worse cases. Other places like Savannah, Charleston, Mobile, etc. are very vulnerable too, but there isn't as much there.
  15. jasons

    Major Hurricane Irma- STORM MODE

    Already a 62mph gust at Homestead AFB. This storm is huge and will affect the whole state.
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