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Weather observation changes: AWOS, radiosonde, etc.

Are these newly installed stations or are they pre-existing stations, just now affiliated with AWOS and/or just now coming online?
Some are newly installed, some have been around for years, but did not have longline communcations for NADIN/WSMCR transmission prior. It up to the owners of these non-Federal AWOS sites to fund the longline communcation costs so we see the METARs on the data feeds.
Three New Sites and One SID Change

ANQ - Angola IN
HAE - Hannibal MO
PFKT - Brevig Mission AK (AWSS)

M89 is now ADF - Arkadelphia AR
Nine More Sites

6B0 - Middlebury VT
CFD - Bryan TX
DUB - Dubois WY
ECS - Newcastle WY
OPL - Opelousas LA
PAFR - Fort Richardson AK
SAA - Saratoga WY
T20 - Gonzales TX
T77 - Presidio TX
8 More Sites Available

01M - Belmont MS
AZC - Colorado City AZ
DCY - Washington IN
FWB - Branson West MO
LXY - Mexia TX
MQJ - McCordsville IN
OWP - Sand Springs OK
USE - Wauseon OH
9 More Sites Now Available

5M9 Marion KY
C35 Reedsburg WI
D57 Glen Ullin ND
F70 Murrieta/Temecula CA
IMM Immokalee FL
MMI Athens TN
N03 Cortland NY
M25 Mayfield KY
OKZ Sandersville GA
Thanks for posting these, Boris. There are few comments here or at WX-TALK and such but it's appreciated and some of do use the heads up. How many or how often are sites decommissioned?
Thanks for posting these, Boris. There are few comments here or at WX-TALK and such but it's appreciated and some of do use the heads up. How many or how often are sites decommissioned?
Decommissioning of AWOS sites is rather uncommon, but does happen when an airport is closed permanently, as one example. New sites are commissioned often, on a irregular basis but I'd say averaging 4-6 a month. Just b/c they are commissioned does not mean their METARs are available through NCEP. That is up to the owner of the AWOS to fund long line communications on NADIN so the METARs are made available. Right now, there are about 500 AWOS sites that I know of that do not have NADIN service in the U.S.
10 More METAR Sites Now Available

28J - Palatka FL
AFO - Afton WY
CZT - Carrizo Springs TX
DWU - Ashland KY
HII - Lake Havasu City AZ
MCX - Monticello IN
PAHX - Shageluk AK
PFCL - Clarks Point AK
PFWS - South Naknek AK
RZR - Cleveland TN
Seven more METAR sites now available.

0R0 - Columbia MS
HHG - Huntington IN
HZL - Hazelton PA
L01 - Cameron LA
L18 - Fallbrook CA
SEM - Selma AL
SCD - Sylacauga AL
11 More AWOS METAR Sites Now Available

24J - Live Oak FL
AXV - Wapakoneta OH
BHC - Baxley GA
CVW - Cameron, LA
FGX - Flemingsburg KY
N38 - Wellsboro PA
PANA - Napakiak AK
PAQH - Quinhagak AK
PFKW - Kwethluk AK
PPIT - Nunapitchuk AK
PVE - Lexington-Parsons TN
29 More AWOS Now Available!

0V4 - Brookneal VA
1A9 - Prattville AL
1L0 - Reserve LA
3N8 - Mahnomen MN
4I7 - Greencastle IN
8W2 - New Market VA
CXE - Chase City VA
ELK - Elk City OK
FYM - Fayetteville TN
GNF - Grenada MS
GUR - Guernsey WY
GVE - Gordonsville VA
LCQ - Lake City FL
MEV - Minden NV
MOR - Morristown TN
MYZ - Marysville KS
PAAD - Deadhorse/Point Thomson AK
PAUT - Akutan AK
PHT - Paris TN
RCV - Del Norte CO
RNC - McMinnville TN
RZT - Chillicothe OH
SNH - Savannah TN
SXS - Fort Rucker/Shell AL
SYI - Shelbyville TN
W75 - Saluda VA
W78 - South Boston VA
W96 - Quinton VA
Y49 - Walker MN
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19 New AWOS Now Avaiable

6L4 Logan WV
ASN Talladega AL
BDG Blanding UT
BKT Blackstone VA
BMC Brigham City UT
CLW Clearwater FL
EDN Enterprise AL
EQA El Dorado KS
FKR Frankfort IN
FRR Front Royal VA
GKT Sevierville TN
LVL Lawrenceville VA
NY0 Johnstown NY
OLG Solon Springs WI
POY Powell WY
PXE Perry GA
U68 Cowley WY
W31 Kenbridge VA
W81 Crewe VA
18 New AWOS Now Available

66R Columbus TX
SQE Ship Shoal 354 (Gulf of Mexico platform)
S39 Prineville OR
MVH Grassrange MT
I67 Harrison OH
UYF London OH
PBX Pikeville KY
1K1 Benton KS
5T9 Eagle Pass TX
VBW Bridgewater VA
ELA Eagle Lake TX
3D2 Ephraim TX
6I2 Springfield KY
AQX Allendale SC
TGI Tangier VA
M91 Springfield TN
AVQ Marana AZ
2G9 Somerset PA
11 New AWOS METAR Sites Now Available and 4 Site ID Changes:

A08 - Marion AL
82C - New Libson WI
IMS - Madison IN
LNN - Willoughby OH
DTA - Delta UT
3K3 - Syracuse KS
CFJ - Crawfordsville IN
3AU - Augusta KS
1S5 - Sunnyside WA
5A6 - Winona MS
F17 - Center TX

XFL to FIN - Palm Coast FL
2K3 to JHN - Johnson KS
5W8 to SCR - Siler City NC
H21 to OZS - Camdenton MO
10 New AWOS METAR sites recently added:

0S9 Port Townsend WA
4A7 Hampton GA
CXU Camilla GA
DZJ Blairsville GA
HMZ Bedford PA
HVE Hanksville UT
MBO Madison MS
MHL Marshall MO
NOW Port Angeles WA
TVY Tooele UT