WEATHER MODEL RUN TIMES
All the times are CDT and approximate.
GFS (out to 384 hours)
0z: 10:30pm
6z: 4:30am
12z: 10:30am
18z: 4:30pm
NAM (out to 84 hours)
0z: 8:35pm
6z: 2:35am
12z: 8:35am
18z: 2:35pm
CMC (out to 180 hours)
0z: 12:00am
12z : 12:00pm
UKMET (out to 72 hours)
0z: 12:30am
12z: 12:30pm
ECMWF (EURO) (out to 240 hours)
0z: 1:30am
12z: 1:30pm
NOGAPS (out to 180 hours)
*00z = 2:00 AM
*12z = 2:00 PM
DGEX (out to 192 hours)
*00z = 5:15 AM
*12z = 5:15 PM
JMA (out to 144 hours)
*00z = Between 1:00 & 3:00 AM
*12z = Between 1:00 & 3:00 PM
CONVERTING ZULU TIME TO LOCAL TIME
The NHC, Model Runs, NOAA satellites and other tools and organizations use Zulu Time or Coordinated Universal Time (UTC) as their time reference. Many weather websites and resources are stamped in Zulu time.
To make the conversion to your local time, see the chart below. Find your local time in the first column. If you are on Central Daylight Saving Time (CDT), you would use the second column to find your Zulu Time/UTC. For instance, if it's 10 a.m. Central Daylight Saving Time in Washington, D.C., it's 1500 hours in Zulu time/UTC.
Local | EDT | EST | CDT | CST | MDT | MST | PDT | PST |
---|---|---|---|---|---|---|---|---|
Midnight | 0400 | 0500 | 0500 | 0600 | 0600 | 0700 | 0700 | 0800 |
1 a.m. | 0500 | 0600 | 0600 | 0700 | 0700 | 0800 | 0800 | 0900 |
2 a.m. | 0600 | 0700 | 0700 | 0800 | 0800 | 0900 | 0900 | 1000 |
3 a.m. | 0700 | 0800 | 0800 | 0900 | 0900 | 1000 | 1000 | 1100 |
4 a.m. | 0800 | 0900 | 0900 | 1000 | 1000 | 1100 | 1100 | 1200 |
5 a.m. | 0900 | 1000 | 1000 | 1100 | 1100 | 1200 | 1200 | 1300 |
6 a.m. | 1000 | 1100 | 1100 | 1200 | 1200 | 1300 | 1300 | 1400 |
7 a.m. | 1100 | 1200 | 1200 | 1300 | 1300 | 1400 | 1400 | 1500 |
8 a.m. | 1200 | 1300 | 1300 | 1400 | 1400 | 1500 | 1500 | 1600 |
9 a.m. | 1300 | 1400 | 1400 | 1500 | 1500 | 1600 | 1600 | 1700 |
10 a.m. | 1400 | 1500 | 1500 | 1600 | 1600 | 1700 | 1700 | 1800 |
11 a.m. | 1500 | 1600 | 1600 | 1700 | 1700 | 1800 | 1800 | 1900 |
NOON | 1600 | 1700 | 1700 | 1800 | 1800 | 1900 | 1900 | 2000 |
1 p.m. | 1700 | 1800 | 1800 | 1900 | 1900 | 2000 | 2000 | 2100 |
2 p.m. | 1800 | 1900 | 1900 | 2000 | 2000 | 2100 | 2100 | 2200 |
3 p.m. | 1900 | 2000 | 2000 | 2100 | 2100 | 2200 | 2200 | 2300 |
4 p.m. | 2000 | 2100 | 2100 | 2200 | 2200 | 2300 | 2300 | 2400 |
5 p.m. | 2100 | 2200 | 2200 | 2300 | 2300 | 2400 | 2400 | 0100 |
6 p.m. | 2200 | 2300 | 2300 | 2400 | 2400 | 0100 | 0100 | 0200 |
7 p.m. | 2300 | 2400 | 2400 | 0100 | 0100 | 0200 | 0200 | 0300 |
8 p.m. | 2400 | 0100 | 0100 | 0200 | 0200 | 0300 | 0300 | 0400 |
9 p.m. | 0100 | 0200 | 0200 | 0300 | 0300 | 0400 | 0400 | 0500 |
10 p.m. | 0200 | 0300 | 0300 | 0400 | 0400 | 0500 | 0500 | 0600 |
11 p.m. | 0300 | 0400 | 0400 | 0500 | 0500 | 0600 | 0600 | 0700 |