Regular Expressions 101

Positive Lookbehind(?<=\d{6}\s)

\d{6}a digit, repeated exactly 6 times

\sany whitespace character

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<=\d{6}\s)[A-Z]+

LTUS41 KCAR 141558 AAD TMLB Forecast for the National Parks 
KHNX 141001 RECHNX Weather Service San Joaquin Valley