Check GFS data availability from EarthEngine

readme.txt

Here's the procedure
1. Access GFS data via GEE, example: https://code.earthengine.google.com/de11b37bc8010d4a7b0316e95fdc360c
2. In the Console, you will get "ImageCollection NOAA/GFS0P25 (24 elements)", then klik JSON in the right.
3. Click {, Copy and Paste in Text Editor, and save as result.json
4. Run "python parse.py" in the same directory with point 3.

gfs_ee_parse.py

import json
import csv
import sys
import datetime as dt

with open('result.json') as f:
    content = json.load(f)

w = csv.writer(sys.stdout)

def to_date(v):
    return dt.datetime.fromtimestamp(v/1000).strftime('%Y-%m-%d %H:%M:%S')

for i,f in enumerate(content['features']):
    p = f['properties']
    row = [
        ['creation_time', to_date(p['creation_time'])],
        ['system:time_start', to_date(p['system:time_start'])],
        ['system:time_end', to_date(p['system:time_end'])],
        ['forecast_time', to_date(p['forecast_time'])],
        ['forecast_hours', p['forecast_hours']]
    ]
    if i == 0:
        w.writerow(e[0] for e in row)
    w.writerow(e[1] for e in row)