NWS Guide

00Z model run on time, 39 balloon reports flagged

00Z model run on time, 39 balloon reports flagged

Routine ADM

00Z model run on time, 39 balloon reports flagged

Issued (0310Z TUE OCT 27 2026) · by Kempisty, on duty as SDM

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.

126 weather balloon launches were available to feed this run (7 in Alaska, 26 in Canada, 63 in Lower 48, 12 in Mexico, 8 in Caribbean, 10 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.

39 stations were flagged: 5 sent no usable sounding at all, 10 reported a numeric status code, 26 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.

Weather balloon stations flagged in this message
Station Where What happened As printed
ANN 70398 Annette Island, AK Ground equipment failure — the station’s tracking/receiving equipment was down, so no usable sounding was produced. No report for the NAM...10142...Ground equipment failure for the GFS
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 for the NAM...10145...Unfavorable weather conditions for the 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
DTX 72632 White Lake, MI 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
OME 70200 Nome, AK The station reported status code 10158. 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 10158 10158...Flight equipment failure
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
TOP 72456 Topeka/Municipal, KS The station reported status code 10148. 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 10148 10148...Ascent not authorized for this period
GCM 78384 Owen Roberts Airport Grand Cay · Cayman Islands Ground equipment failure — the station’s tracking/receiving equipment was down, so no usable sounding was produced. 10142...Ground equipment failure
BRW 70026 Barrow/W. Post W. Rogers, AK 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 the NAM....Missing TTAA for the GFS
YVQ 71043 Norman Wells A, Nwt · Canada 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. This affected the GFS run. Missing TTAA/TTBB for the GFS
YYR 71816 Goose A, Nfld · Canada 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
YYQ 71913 Churchill A Ua, Man · Canada 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. This affected the GFS run. Missing TTAA/TTBB...Full report in for the GFS
YEU 71917 Eureka A, Nu · Canada 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. This affected the GFS run. Missing TTAA/TTBB for the GFS
YYE 71945 Fort Nelson A, Mexico · Canada 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 the NAM...Missing TTAA for the GFS
TBW 72210 Tampa Bay Area, FL 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
BMX 72230 Birmingham, AL 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
JAN 72235 Jackson/Allen C. Thompson Fiel, MS 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 TTAA/TTBB for the NAM...Missing TTBB for the GFS
FWD 72249 Fort Worth, TX 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
AMA 72363 Amarillo/INTL, TX 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
ABQ 72365 Albuquerque/Intl, NM 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 TTAA/TTBB for the NAM...Missing TTBB for the GFS
VEF 72388 Las Vegas, NV 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. The GFS run still got a usable report from this station. Missing TTAA for the NAM...Full report in for the GFS
ILN 72426 Wilmington, OH 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
OKX 72501 Upton, NY 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
BUF 72528 Buffalo/Greater Buffalo Intl, NY 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
SLC 72572 Salt Lake City/Intl Ut, UT 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
UNR 72662 Rapid City/Regional Airport, S, SD 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 TTAA/TTBB for the NAM...Missing TTBB for the GFS
RIW 72672 Riverton, WY 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
BOI 72681 Boise/Municipal, ID 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
CAR 72712 Caribou/Municipal, ME 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
BIS 72764 Bismarck/Municipal, ND 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. The GFS run still got a usable report from this station. Missing TTBB for the NAM...Full report in for the GFS
TFX 72776 Great Falls, MT 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
ACA 76805 Acapulco, Mexico · Mexico 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
SDQ 78486 Santo Domingo · Dominican Republic 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. The GFS run still got a usable report from this station. Missing TTAA/TTBB for the NAM...Full report in for the GFS
ROR 91408 Koror/Caroline Is · Palau 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 the NAM...Missing TTAA for the GFS
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 270311
ADMSDM

SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGE
NWS CENTRAL OPERATIONS COLLEGE PARK MD
0310Z TUE OCT 27 2026

00Z NWS model production is running on time with 7 Alaskan...
26 Canadian...63 CONUS...12 Mexican...8 Caribbean...and 10
Pacific stations available for ingest.

UPDATED 00Z GFS RAOB RECAP...
70398/ANN - No report for the NAM...10142...Ground
            equipment failure for the GFS
70414/SYA - No report for the NAM...10145...Unfavorable
            weather conditions for the GFS
72206/JAX - No report
72632/DTX - No report
72786/OTX - No report
70133/OTZ - 10159
70200/OME - 10158...Flight equipment failure
70219/BET - 10159
70308/SNP - 10159
70326/AKN - 10159
72274/TWC - 10159
72456/TOP - 10148...Ascent not authorized for this period
78384/GCM - 10142...Ground equipment failure
70026/BRW - Missing TTAA/TTBB for the NAM....Missing TTAA
            for the GFS
71043/YVQ - Missing TTAA/TTBB for the GFS
71816/YYR - Missing TTAA/TTBB
71913/YYQ - Missing TTAA/TTBB...Full report in for the GFS
71917/YEU - Missing TTAA/TTBB for the GFS
71945/YYE - Missing TTAA/TTBB for the NAM...Missing TTAA
            for the GFS
72210/TBW - Missing TTBB
72230/BMX - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72235/JAN - Missing TTAA/TTBB for the NAM...Missing TTBB
            for the GFS
72249/FWD - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72363/AMA - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72365/ABQ - Missing TTAA/TTBB for the NAM...Missing TTBB
            for the GFS
72388/VEF - Missing TTAA for the NAM...Full report in for
            the GFS
72426/ILN - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72501/OKX - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72528/BUF - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72572/SLC - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72662/UNR - Missing TTAA/TTBB for the NAM...Missing TTBB
            for the GFS
72672/RIW - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72681/BOI - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72712/CAR - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
72764/BIS - Missing TTBB for the NAM...Full report in for
            the GFS
72776/TFX - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
76805/ACA - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
78486/SDQ - Missing TTAA/TTBB for the NAM...Full report in
            for the GFS
91408/ROR - Missing TTAA/TTBB for the NAM...Missing TTAA
            for the GFS


Kempisty/SDM/NCO