00Z model run on time, 26 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.
114 weather balloon launches were available to feed this run (10 in Alaska, 26 in Canada, 60 in Lower 48, 11 in Mexico, 2 in Caribbean, 5 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 for the GFS.
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.
26 stations were flagged: 14 sent no usable sounding at all, 9 reported a numeric status code, 1 had a balloon burst early, 2 were missing part of the transmission. 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 |
|---|---|---|---|
| BET 70219 | Bethel/Bethel Airport, 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. | No report for NAM/GFS |
| AKN 70326 | King Salmon, 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. | No report for NAM/GFS |
| SYA 70414 | Shemya AFB, AK | No weather balloon data from this station reached the NAM run. The GFS run did get a report from it. | No report for NAM.. in for GFS |
| 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 for NAM/GFS |
| FWD 72249 | Fort Worth, TX | No weather balloon data from this station reached the NAM run. The GFS run did get a report from it. | No report for NAM.. in for GFS |
| 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 for NAM/GFS |
| 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 for NAM/GFS |
| INL 72747 | Intl.Falls/Falls Intl Mn, MN | No weather balloon data from this station reached the NAM run. The GFS run did get a report from it. | No report for NAM.. in for GFS |
| 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 for NAM/GFS |
| TKK 91334 | Truk/Caroline Is · Micronesia | 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 for NAM/GFS |
| PNI 91348 | Ponape/Caroline Is · Micronesia | 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 for NAM/GFS |
| MAJ 91376 | Majuro/Marshall Island Intl · Marshall Islands | 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 for NAM/GFS |
| ROR 91408 | Koror/Caroline Is · Palau | 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 for NAM/GFS |
| YAP 91413 | Yap/Caroline Is · Micronesia | 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 for NAM/GFS |
| OTZ 70133 | Kotzebue, Ralph Wien, AK | Any reason not listed above — other or unspecified reason. “Unavailable” may appear as free text, but is not the formal definition. | 10159 |
| SNP 70308 | St. Paul Islands, AK | Any reason not listed above — other or unspecified reason. “Unavailable” may appear as free text, but is not the formal definition. | 10159 |
| YAK 70361 | Yakutat, AK | Observation delayed — the observation was delayed. The GFS run still got a usable report from this station. | 10143 for NAM..full report in for GFS |
| MAF 72265 | Midland/Midland Reg. Airterm, TX | Ground equipment failure — the receiving, tracking, processing, or other ground system failed. | 10142 |
| TWC 72274 | Tucson, AZ | Any reason not listed above — other or unspecified reason. “Unavailable” may appear as free text, but is not the formal definition. | 10159 |
| TOP 72456 | Topeka/Municipal, KS | Any reason not listed above — other or unspecified reason. “Unavailable” may appear as free text, but is not the formal definition. | 10159 |
| ZAC 76526 | Zacatecas Sondeo · Mexico | Ground equipment failure — the receiving, tracking, processing, or other ground system failed. | 10142 |
| GCM 78384 | Owen Roberts Airport Grand Cay · Cayman Islands | Ground equipment failure — the receiving, tracking, processing, or other ground system failed. | 10142 |
| POS 78970 | Piarco Intl, Trinidad · Trinidad and Tobago | Any reason not listed above — other or unspecified reason. “Unavailable” may appear as free text, but is not the formal definition. | 10159 |
| MEX 76679 | Aeropuerto Internacional Mexico, D · Mexico | The balloon burst early. It stopped reporting at 554.8 mb, so this sounding only covers the lower part of the atmosphere — forecasters and models got no data above roughly 4.8 km (15,500 ft). (554.8 mb ≈ 4.8 km (15,500 ft)) | Short to 554.8 mb |
| MFL 72202 | Miami, FL | The station reported, but part of the sounding transmission was missing — specifically TTAA, the mandatory-levels section that carries the standard pressure levels up to 100 mb. | Missing TTAA/TTBB for NAM..Missing TTAA for GFS |
| SJU 78526 | San Juan/Intl, Puerto Rico, PR · Puerto Rico | The station reported, but part of the sounding transmission was missing — specifically TTBB, the "significant levels" section that carries the extra detail between the standard pressure levels. | Missing TTBB |
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 080303 ADMSDM SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGE NWS CENTRAL OPERATIONS COLLEGE PARK MD 0302Z SAT AUG 08 2026 The 00Z NWS model production suite continues to run on time with 10 Alaskan..26 Canadian..60 CONUS..11 Mexican..2 Caribbean..and 5 Pacific stations available for ingest into the 00Z GFS. UPDATED 00Z GFS RAOB RECAP... 70219/BET - No report for NAM/GFS 70326/AKN - No report for NAM/GFS 70414/SYA - No report for NAM.. in for GFS 72206/JAX - No report for NAM/GFS 72249/FWD - No report for NAM.. in for GFS 72388/VEF - No report for NAM/GFS 72645/GRB - No report for NAM/GFS 72747/INL - No report for NAM.. in for GFS 72786/OTX - No report for NAM/GFS 91334/TKK - No report for NAM/GFS 91348/PNI - No report for NAM/GFS 91376/MAJ - No report for NAM/GFS 91408/ROR - No report for NAM/GFS 91413/YAP - No report for NAM/GFS 70133/OTZ - 10159 70308/SNP - 10159 70361/YAK - 10143 for NAM..full report in for GFS 72265/MAF - 10142 72274/TWC - 10159 72456/TOP - 10159 76526/ZAC - 10142 78384/GCM - 10142 78970/POS - 10159 76679/MEX - Short to 554.8 mb 72202/MFL - Missing TTAA/TTBB for NAM..Missing TTAA for GFS 78526/SJU - Missing TTBB Churchill/SDM/NCO