00Z model run on time, 12 balloon reports flagged
Model status
NWS is producing the 00Z model run on schedule. Forecast model output should reach forecasters, apps and websites at the usual times.
“00Z” is the run’s start time in UTC. NWS runs its main models four times a day — 00Z, 06Z, 12Z and 18Z — and each run begins by digesting a global snapshot of current conditions taken at that hour.
128 weather balloon launches were available to feed this run (9 in Alaska, 25 in Canada, 62 in Lower 48, 15 in Mexico, 8 in Caribbean, 9 in Pacific). “Stations available for ingest” means balloon soundings that arrived in time to be folded into the model’s starting picture of the atmosphere. Twice a day, sites across North America release balloons that measure temperature, humidity, pressure and wind all the way up. More stations reporting means a better-anchored starting point.
Balloon reports UPDATED 00Z GFS RAOB RECAP...
Twice a day, NWS and partner agencies release weather balloons that carry a radiosonde — a small instrument package that radios back temperature, humidity, pressure and wind as it climbs. Those soundings are one of the main ingredients in a forecast model’s starting conditions. This section is the roll call of stations that had a problem for the 00Z run of the GFS.
12 stations were flagged: 5 sent no usable sounding at all, 6 reported a numeric status code, 2 had bad data removed by quality control. A handful of gaps is normal and is not by itself a sign of a forecast problem — the models are built to work with an incomplete picture.
| Station | Where | What happened | As printed |
|---|---|---|---|
| SYA 70414 | Shemya AFB, AK | No weather balloon data from this station reached the model for this cycle — either no launch happened or the data did not arrive in time. unrecognised status code 10145 | No report...10145...Unfavorable weather conditions |
| JAX 72206 | Jacksonville/Intl, FL | No weather balloon data from this station reached the model for this cycle — either no launch happened or the data did not arrive in time. | No report |
| VEF 72388 | Las Vegas, NV | No weather balloon data from this station reached the model for this cycle — either no launch happened or the data did not arrive in time. | No report |
| GRB 72645 | Green Bay/A.-Straubel, WI | No weather balloon data from this station reached the model for this cycle — either no launch happened or the data did not arrive in time. | No report |
| OTX 72786 | Spokane, WA | No weather balloon data from this station reached the model for this cycle — either no launch happened or the data did not arrive in time. | No report |
| OTZ 70133 | Kotzebue, Ralph Wien, AK | The station reported status code 10159. NWS does not publish a public legend for these codes, so we will not guess at what it means — it signals some problem with the launch or the data. unrecognised status code 10159 | 10159 |
| BET 70219 | Bethel/Bethel Airport, AK | The station reported status code 10159. NWS does not publish a public legend for these codes, so we will not guess at what it means — it signals some problem with the launch or the data. unrecognised status code 10159 | 10159 |
| SNP 70308 | St. Paul Islands, AK | The station reported status code 10159. NWS does not publish a public legend for these codes, so we will not guess at what it means — it signals some problem with the launch or the data. unrecognised status code 10159 | 10159 |
| AKN 70326 | King Salmon, AK | The station reported status code 10159. NWS does not publish a public legend for these codes, so we will not guess at what it means — it signals some problem with the launch or the data. unrecognised status code 10159 | 10159 |
| TWC 72274 | Tucson, AZ | The station reported status code 10159. NWS does not publish a public legend for these codes, so we will not guess at what it means — it signals some problem with the launch or the data. unrecognised status code 10159 | 10159 |
| YYR 71816 | Goose A, Nfld · Canada | Quality control removed part of this sounding before it reached the models: temps/moisture 648-646mb...wet bulb effect. The rest of the sounding was still used. | Purged temps/moisture 648-646mb...wet bulb effect |
| XMR 74794 | Cape Kennedy, FL | Quality control removed part of this sounding before it reached the models: temps/moisture 744-680mb...wet bulb effect. The rest of the sounding was still used. | Purged temps/moisture 744-680mb...wet bulb effect |
Show the original message
Exactly as NWS transmitted it. Everything above is our plain-English reading of this text — if the two ever disagree, this is the authoritative version.
000
NOUS42 KWNO 250306
ADMSDM
SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGE
NWS CENTRAL OPERATIONS COLLEGE PARK MD
0305Z FRI SEP 25 2026
00Z NWS model production is running on time with 9
Alaskan...25 Canadian...62 CONUS...15 Mexican...8
Caribbean...and 9 Pacific stations available for ingest.
There were also 10 dropsondes in the vicinity of Hurricane
Nolo in the Central Pacific.
UPDATED 00Z GFS RAOB RECAP...
70414/SYA - No report...10145...Unfavorable weather
conditions
72206/JAX - No report
72388/VEF - No report
72645/GRB - No report
72786/OTX - No report
70133/OTZ - 10159
70219/BET - 10159
70308/SNP - 10159
70326/AKN - 10159
72274/TWC - 10159
71816/YYR - Purged temps/moisture 648-646mb...wet bulb
effect
74794/XMR - Purged temps/moisture 744-680mb...wet bulb
effect
Kempisty/SDM/NCO