Jump to content

MegaMike

Meteorologist
  • Content count

    294
  • Joined

  • Last visited

About MegaMike

  • Birthday 09/09/1993

Profile Information

  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KHFD
  • Gender
    Male
  • Location:
    Storrs, CT

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. MegaMike

    GFS Model Data Extraction

    No problem, Wiz! I'm glad to help. I may keep my process in this thread for the sake of reference.
  2. MegaMike

    GFS Model Data Extraction

    I've been working on extracting operational variables myself for modeling purposes. I believe the first url ('https://www.ncdc.noaa.gov/data-access/model-data/model-datasets/global-forcast-system-gfs') archives only analysis data (is this what you want?). Regardless, the second url ('http://www.nco.ncep.noaa.gov/pmb/products/gfs/') stores/archives both analysis and operational (forecast/predicted) data. When you write "choose which parameters and data," I'm assuming you mean NWP variables such as temperature, wind speed, etc... That being stated; Typically, NWP data is stored by grib files. Very rarely are these grib files stored for specific variable such as 'temperature' or 'wind speed' separately. If they are, however, all you'd need to do is connect to a particular server then download a variable-specific grib file for 'x' different files. You can then convert that file into a .txt/.csv/etc... file afterwards in order to manipulate the data as you wish. What I think you'll need to do, however, is download a grib file (which contains all variables) for one timestamp from a server, then you'll have to extract a specific variable from a grib file itself. Therefore you'll need to a) connect to a server to obtain grib files likely by ftp b) extract a variable from the grib file and c) store the extracted variable as a .txt/.csv/etc... file to manipulate its data. This is how I'm planning on accomplishing this task for my project: a) Firstly, I'd recommend this server ('ftp://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/'). The server hosts multiple NWP models (analysis/operational) in a user friendly and organized manner. It'll be easy to cd and loop through certain directories in order to obtain multiple NWP models for multiple variables == It's convenient . You can use this link 'https://www.weather.gov/mdl/ndfd_data_grid' to determine the abbreviations and the formatting of the directories. b) As for extracting certain variables, I'd recommend NCAR Command Language (NCL). The program can be run on Linux (recommended) or a Linux Bash Shell via Windows 10. It takes only a couple lines of code to extract data using this program. Alternatively, you can use MATLAB by utilizing nctoolbox or MeteoLab (likely more functions than this). Both functions accomplish the same procedure in a slightly more intensive way. If you want a more interactive program and have the patience of a Jets or Browns fan (~1/2 a century worth of patience), you can use the NOAA Weather and Climate Toolkit. This program is 10x more tedious and longer than simply using NCL or MATLAB. You'd have to download the grib files manually (or automatically by a loop using a program of your choice) before being able to process the data through the Toolkit. I first used this program when I was an undergraduate. I definitely wouldn't recommend this program now, unfortunately. I'd say it's useful for case studies of one or two events. - You can also use Python and probably R to obtain, extract, and manipulate grib files, as well. My knowledge is very limited for these programs though. I hope this helps and I welcome anyone else who has other methods, ideas, and or corrections!
  3. Hello,

    Please read my comment that I posted to your 'stock market' related thread! :thumbsup:

  4. MegaMike

    March 12/13/14 Blizzard/Winter Storm/WWA etc

    Meh. They were in between bands for most of the event. I don't think they ever got into the mega band, either (by a few miles). I'm glad I'm in RI for this event instead!
  5. MegaMike

    March 12/13/14 Blizzard/Winter Storm/WWA etc

    There are three observations of 8+ inches of snow already. North Dighton, MA (8.2/9:38am), Acushnet, MA (8.0/9:45am), and Burrillville, RI (8.0/9:12am). It seems like most of interior SE MA and RI have snowfall accumulations between 4-8 inches atm.
  6. MegaMike

    The King Regains its Throne

    Around 4-5 inches of snow in Storrs, CT. I heard/seen a couple smaller sized tree limbs snap on my walk an hour ago. Power is also flickering here as well.
  7. Haven't they been doing this for a couple of years now? The "EURO" is doing this, the "GFS" is doing that... it seems like they don't want to take responsibility in their own "forecasts" anymore. If something goes wrong, they'll just blame NWP models. They have literally no forecasting value anymore because of it. Anyone can "rip and read" model output.
  8. MegaMike

    The Pope's 'And There You Have It" SWFE Feb 7 2018

    Ice accumulation on trees and branches is becoming visible in Storrs after roughly an inch of snow from earlier this morning/afternoon. 31/30
  9. MegaMike

    Nearing the 2nd half of Meteorological winter:

    Yup. From our completely honest, reliable, and unbiased friends at CNN: "The tsunami alerts were canceled "because additional information and analysis have better defined the threat... (embedded quote from the NWS National Tsunami Warning Center Palmer AK)" Small tsunami waves of less than 1 foot were reported in Alaska."
  10. MegaMike

    Obs Thread 1/15-17

    This storm reminds me of an event in 09' or 10'. SE Ma was expecting around 14-16", but only received 2-4" of snow on the backend of a strengthening coastal. Classes were canceled with literally no snowfall accumulation (during school hours) despite observing snow throughout the morning and afternoon. I'm just basing this comparison on vibe/feel and nothing more. My classes have been canceled this afternoon since last night. Currently, Storrs has roughly 1-2" of snow on the ground. I thought schools and universities have learned from that event... Make your final calls during the early morning hours so the event has more time to materialize.
  11. MegaMike

    January 4-6 Coastal Bomb Observations/Nowcast

    I'm pretty confident KPVD will verify a blizzard. Visibility has been less than 0.25 miles since 9:00am this morning with wind and or gusts consistently surpassing 35 mph. There were only 3 occasions (5 minute increment observations) in which the visibility reached 0.5 miles within this timeframe. Otherwise, snow rates are picking up again! I think 2-4 more inches is certainly possible for this area (Pawtucket/surrounding locations). I think that'll bring my total to ~15-18. We'll see!!!
  12. MegaMike

    January 4-6 Coastal Bomb Observations/Nowcast

    I'm about at one foot, as well. Moderate to heavy snow accompanied by strong winds all day long so far (Pawtucket, RI). I'm surprised the Attleboro/Providence/Pawtucket area didn't dry slot, change to sleet, spontaneously combust, etc... I'm not used to this area performing well during winter storms. I'm glad I made the trip from CT to experience this! This is truly a memorable event for this area imo.
  13. MegaMike

    Jan 4-6 Coastal Bomb

    Yup! Already a couple observations of snow reaching the surface (eastern LI and eastern CT).
  14. MegaMike

    January 2018 Model Discussion Thread

    You mean compared to its previous run? Using TT's looking at sfc pressure, the mean appears slightly east (by maybe 10 miles) than last run with less spread towards the west and more spread towards the east. I'd post images, but I only have my phone with me atm.
  15. MegaMike

    Help/Suggest: Climate Metric/Score

    I agree with Brony Ellinwood. This would be a very subjective model that would vary from person to person. That being said/written!!! I'd use variables that correlate weather to physical and psychological health. Therefore, you'd have a standardized, universal method to calculate "what the weather is like" at a certain location via health. Some variables that I'd consider: Coefficient of Pressure (fluctuates blood pressure///can cause joint pain///headaches///sinuses) Coefficient of Temperature (narrowing of blood vessels///dehydration///hypothermia///heart attacks)... Coefficient of Temperature wrt (with respect to) Time (may cause illness [could look at Pressure and DP Temp change too for this]) Coefficient of Dew Point Temperature (difficulty to breath/cool off under high humidity) Coefficient of Heat Index (Combination of Temp and DP Temp [might be unnecessary or vise versa]) Coefficient of FROPAs (thinning and thickening of blood vessels via cold or warm fronts [diabetics]) Coefficient of Cloud Cover (depression///migraines on bright days) Coefficient of Precipitation (i.e... 'Cloud Cover') Coefficient of Precipitation Type (shoveling snow can cause deaths for a number of reasons///ice can cause fatalities due to knocking out power (exposure), driving accidents, etc...) Coefficient of Air Quality (respiratory problems[asthma])... Coefficient of Insurance Claims (from weather related damages) Sum Value Coefficients (one, overall value to determine "what the weather is like" wrt health)... The Köppen climate classification categorizes regions of similar climate. It doesn't numerically calculate the livability of a given location. If you can derive something to numerically portray livability, you'll create a model that's useful/helpful imo. Admittedly, if you choose to create a model similar to what I mentioned above, it will likely resemble the Köppen climate classification. I hope my template gives you some ideas!!! You can always choose to create a model that determines the livability wrt weather enthusiasts, snow lovers, etc... basically anything. This is where things become subjective though.
×