blaylockbk

import matplotlib

# Generate a list of colors
cmap = matplotlib.cm.get_cmap('Spectral')

# Retrieve 19 colors from the colormap
colors = cmap(np.arange(19)/19)

blaylockbk

# Print a progress bar for a loop completion

from time import sleep
F = range(10)
num = len(F)
for i in F:
  sleep(1)
  sys.stdout.write('\r%.1f%% Complete (%s of %s)' % (i/num*100, i, num))

blaylockbk

masked = H['value']
masked = np.ma.array(masked)
masked[masked == -10] = np.ma.masked

blaylockbk

from datetime import datetime
import numpy as np

def to_datetime(date):
    """
    Converts a numpy datetime64 object to a python datetime object 
    Input:
      date - a np.datetime64 object
    Output:
      DATE - a python datetime object

blaylockbk

# Download single variable from single day
DATE = date(2017, 3, 10)   # Model run date
variable = 'HGT:500 mb'       # Must be part of a line in the .idx file              
download_HRRR_variable_from_pando(DATE, variable,
                                  hours=range(0, 24), fxx=[0],
                                  model='hrrr', field='sfc',
                                  more_vars=4,
                                  outdir='./')

blaylockbk

# Fast download of HRRR grib2 files (single variable) with multithreading
# import some additional modules
from queue import Queue 
from threading import Thread

def worker():
    # This is where the main download function is run.
    # Change the hour and fxx parameters here if needed.
    while True:
        item = q.get()

blaylockbk

# === User change these parameters ================================
# date range
sDATE = date(2017, 3, 10)   # Start date
eDATE = date(2017, 3, 13)   # End date (exclusive)
# list of variables
variables = ['TMP:2 m', 'DPT:2 m', 'UGRD:10 m', 'VGRD:10 m'] 
# =================================================================

days = (eDATE-sDATE).days
DATES = [sDATE + timedelta(days=d) for d in range(days)]

blaylockbk

# === User change these parameters ============================
# date range
sDATE = date(2017, 3, 10) # Start date
eDATE = date(2017, 3, 13) # End date (exclusive)
# variable string
variable = 'TMP:2 m'      # Must be part of a line in the .idx file
# =============================================================

days = (eDATE-sDATE).days
DATES = [sDATE + timedelta(days=d) for d in range(days)]

blaylockbk

# Download single variable from single day
DATE = date(2017, 3, 10)   # Model run date
variable = 'TMP:2 m'       # Must be part of a line in the .idx file              
download_HRRR_variable_from_pando(DATE, variable,
                                  hours=range(0, 24), fxx=[0],
                                  model='hrrr', field='sfc',
                                  outdir='./')

blaylockbk

#########################################
# ✨ Use the new Herbie Package instead: 
#   https://github.com/blaylockbk/Herbie
#########################################

# Brian Blaylock 
# February 13, 2018

# Updated December 10, 2018 for Python 3 (Thanks J.Matt for sharing)