Wednesday, September 3, 2014 2:05 GMT

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Manual Reconnaissance Decoder
This manual decoder decodes high density (HDOB), reconnaissance code (RECCO), dropsonde, and vortex messages from Air Force and NOAA aircraft performing reconnaissance in both tropical and non tropical systems. You can access raw data at the links at the bottom of this page and view a more complete list of acceptable products here. This decoder can decode multiple messages of any combination of the above products. Enter the product(s) you want to decode into the box below. This decoder also decodes the no longer used SXXX50, URNT40, and URNT50 formats but not supplementary vortex messages (URNT14). A highly experimental feature of this decoder is the ability to decode various formats of Airborne eXpendable BathyThermograph (AXBT) data. This feature will be more stable when our system is rewritten in 2013. (AXBT format examples: New NOAA format | FM 63-XI Ext. BATHY (JJVV) | Example of seemingly older NOAA format) Some archived NOAA AXBT data appears here.

characters (25,000 max)  





Main Options
Render decoded message as:





* Some data left out for URNT15 in the message board friendly option.




(not available for the Western Pacific) - About this product



Include option to map observations with Google Maps:



(Available with "HTML Table" and "Message Board Friendly" renders)

More Options
Dropsonde Decoder Options (UZNT13):


View diagram of normal size
(Only available with the "HTML Table" render option)



Vortex Decoder Options (URNT12):


Add informative information in addition to the normal output.


Using this mode, the decoder will reject the output if it can't decode every single item, exluding the remarks section which often has data that our decoder cannot decode, and makes sure that every item is there, unless the vortex is noted as abbreviated. Without this mode, the decoder will simply present the undecoded data in the output and not check to see if every item is there. Strict mode is not recommended.



Independent Calculations (only available for URNT15 with HTML Table render) for Manual Decoder
(About)


(Advanced Feature for HDOB messages - You must read this page before you use this feature.)

Enter the coordinates of the storm below to see how far that observation is from the center of ths storm, including the direction from the center.

Decimal Degrees:

N   W

- or -

Degrees, Minutes, Seconds:

° ' " N   ° ' " W


Atlantic Basin
Main Air Force Products (KNHC):
URNT15 - High Density (HDOB) Message (Sites: 1, 2)
UZNT13 - Dropsonde Report (Sites: 1, 2)
URNT12 - Vortex Message (Sites: 1, 2)
URNT11 - Tropical RECCO Observation (Sites: 1, 2)

Main NOAA Products (KWBC):
URNT15 - High Density (HDOB) Message (Sites: 1, 2)
UZNT13 - Dropsonde Report (Sites: 1, 2)
URNT12 - Vortex Message (Sites: 1, 2)
URNT11 - Tropical RECCO Observation (Sites: 1, 2)

Air Force Backup Products (KBIX):
URNT15 - High Density (HDOB) Message (Sites: 1, 2)
UZNT13 - Dropsonde Report (Sites: 1, 2)
URNT12 - Vortex Message (Sites: 1, 2)
URNT11 - Tropical RECCO Observation (Sites: 1, 2)
East / Central Pacific Basin
Main Air Force Products (KNHC):
URPN15 - High Density (HDOB) Message (Sites: 1, 2)
UZPN13 - Dropsonde Report (Sites: 1, 2)
URPN12 - Vortex Message (Sites: 1)
URPN11 - Tropical RECCO Observation (Sites: 1, 2)

Main NOAA Products (KWBC):
URPN15 - High Density (HDOB) Message (Sites: 1, 2)
UZPN13 - Dropsonde Report (Sites: 1, 2)
URPN12 - Vortex Message
URPN11 - Tropical RECCO Observation

Air Force Backup Products (KBIX):
URPN15 - High Density (HDOB) Message (Sites: 1, 2)
UZPN13 - Dropsonde Report (Sites: 1, 2)
URPN12 - Vortex Message
URPN11 - Tropical RECCO Observation