اذا صار شي، خبريني فورا.

A natural pronunciation is:

iza ṣār shi, khabberīni fōran

A simpler learner-friendly version is:

iza saar shi, khabberiini فوران/fooran

A few notes:

• إذا is usually pronounced iza in Levantine, not the more Standard Arabic-like idhā.
• صار has a long aa sound: ṣār / saar.
• شي is usually shi.
• خبريني has stress near the end: khab-be-RII-ni.
• فورا may sound like fōran or fawran, depending on the speaker.

Yes, صار literally often means became, but in Levantine it is also very commonly used to mean:

• happened
• occurred
• took place

So إذا صار شي means something like:

• if something happens
• if anything happens

This is a very normal everyday use of صار.

That is very common in Arabic conditionals.

After إذا, Levantine often uses a past-tense verb even when the meaning is present or future. So:

• إذا صار شي = if something happens
• not if something happened in the English past sense

So here the past form is part of a normal conditional pattern, not a sign that the event already happened.

شي literally means thing, but in everyday Levantine it often works like:

• something
• anything

So in this sentence, إذا صار شي is best understood as:

• if something happens
• if anything happens

Arabic does not always separate something and anything the same way English does. The context tells you which one is meant.

خبريني comes from the verb خبّر meaning to tell / to inform / to let someone know.

It breaks down like this:

• خبّري = tell! / inform! said to one woman
• ني = me

So:

• خبريني = tell me / let me know

In natural English, it often feels closer to let me know than to a direct tell me.

Yes. خبريني is addressed to one female.

Here are the matching forms:

• خبرني = say this to one male
• خبريني = say this to one female
• خبرونا or خبروني = say this to more than one person, depending on dialect and phrasing

So if you were talking to a man, you would say:

إذا صار شي، خبرني فورا

Because Arabic often does not need it.

In this kind of sentence, Levantine commonly just puts:

• the condition first: إذا صار شي
• then the result or command: خبريني فورا

The meaning of then is understood automatically. English often includes it, but Arabic usually does not need to.

فورا means:

• immediately
• right away

It is completely understandable and natural, but it can sound a bit more neutral or slightly more formal than some very colloquial alternatives.

In everyday Levantine, you might also hear:

• دغري = right away / immediately
• عالطول = straight away / immediately

So these are all possible:

• إذا صار شي، خبريني فورا
• إذا صار شي، خبريني دغري
• إذا صار شي، خبريني عالطول

Yes. Both are possible in Levantine.

• إذا صار شي = very common, natural
• إذا بصير شي = also natural in many dialects

The difference is small here. Very roughly:

• صار can sound a bit more like if something happens/comes up
• بصير can sound a bit more like if something happens/occurs

In real conversation, both can work well.

This is an important question.

• إذا is used for a real or possible condition: if
• لو is often used for a more hypothetical, unlikely, or contrary-to-fact condition

So here, إذا صار شي means:

• if anything happens
  as a real possibility

If you used لو, it would feel different, more like a hypothetical scenario rather than a normal practical instruction.

So إذا is the right choice here.

It is natural Levantine overall.

Why?

• إذا
• صار شي
• خبريني

These are all very normal in spoken Levantine.

The part that leans a little more neutral or standard-ish is فورا, but it is still widely used and sounds fine. If you want a more obviously colloquial feel, you could say:

• إذا صار شي، خبريني دغري
• إذا صار شي، خبريني عالطول

So the original sentence is absolutely usable and natural.

In this sentence, it usually feels more like let me know.

Literal meaning:

• خبريني = inform me / tell me

Natural English meaning here:

• let me know immediately
• tell me right away

So even though the verb is related to news/information, the most natural English translation in this context is often let me know.

Because Arabic often expresses that idea more simply.

In English, we say:

• if anything happens

In Levantine, the equivalent is often just:

• إذا صار شي

Literally, that looks like if a thing happens, but in real usage it naturally means if anything happens. This is one of those places where Arabic is more compact than English.