747-600X
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Metar Code "frg"?

Wed Jun 12, 2013 10:40 pm

Here's a current METAR from O'Hare, and for the life of me I can't find anywhere on ye olde Internets what the "FRG" stands for. Anyone know?

KORD 122220Z 07013G16KT 10SM -TSRA SCT060CB BKN075 BKN095 OVC180 22/18 A2970 RMK AO2 TSB19RAB19 FRG LTGICCG VC SW-W TS SW-W MOV NE P0000 $
 
steex
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RE: Metar Code "frg"?

Wed Jun 12, 2013 10:54 pm

My assumption is it's a typo that slipped through and should be "FRQ" to denote the lightning as frequent. A lightning advisory should typically denote the condition as OCNL (occasional) or FRQ (frequent), which is otherwise missing here before LTGICCG (lightning, intracloud and cloud to ground).

[Edited 2013-06-12 15:55:33]
 
747-600X
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:09 pm

I wondered about that; thought perhaps it meant "frontal growth". How can there be a typo in an automated report? (Maybe that's why it has a $ at the end!)
 
Type-Rated
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:12 pm

I thought it could mean "freezing fog".
There are some big T-storms passing through ORD right now. They were forecasting tornadoes earlier this afternoon.

I wonder who was diverted?
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747-600X
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:19 pm

Freezing fog pops up from time to time, but not when it's this warm. That's just FZFG. I think as steex said, it has to be a "typo", as I can't find any indication of FRG actually meaning anything anywhere.

The current TAF makes it look like conditions should clear up relatively soon visibility-wise. For instrument approaches, visibility is the more important minimum (rather than ceiling) in determining whether an approach can be made, and nothing here looks like it would be restrictive in that sense. Also, winds don't look too bad, so I'm thinking there's no need to divert.
 
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Acey559
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:25 pm

Storms are forecast to continue for a while and center just evacuated due to a tornado warning, which won't help. ORD is a zoo right now.
 
IAHFLYR
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:25 pm

Quoting 747-600X (Reply 4):
For instrument approaches, visibility is the more important minimum (rather than ceiling) in determining whether an approach can be made, and nothing here looks like it would be restrictive in that sense.

Very true except when you are flying a circling approach then the ceiling does have a meaning in the line of minimums.
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flyby519
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:26 pm

Frogs. It is raining frogs and started at :19 past the hour.  
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747-600X
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:37 pm

A) They evacuated ZAU?! That's gonna leave a mark...
B) Do they ever do circling approaches to O'Hare? Elgin sure has fun lining them up straight as an arrow a loooooong way out. Midway might be a bigger issue. Those guys definitely make some sharp turns after the runway's in sight...
 
747-600X
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:41 pm

Looks like someone caught the typo. No more frogs at O'Hare 

KORD 122333Z 15004G16KT 8SM TS SCT010 SCT025 BKN036CB OVC130 21/19 A2967 RMK AO2 RAE32 *FRQ* LTGICCG OHD TS OHD MOV E P0059 $
 
26point2
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:43 pm

FRQ is "frequent" and that modifier makes sense. Perhaps it said FRQ at one time......
 
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Acey559
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:47 pm

Quoting 747-600X (Reply 8):

I've never circled at ORD, but I'm not sure if it's something they do in certain instances or not. MDW does it, though. Or at least they used to but I haven't flown there in over two years.
 
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foxecho
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RE: Metar Code "frg"?

Wed Jun 12, 2013 11:56 pm

Quoting flyby519 (Reply 7):

Frogs. It is raining frogs and started at :19 past the hour.

could be related to the Tornadoes.....   

Andrew
..uh, we'll need that to live......
 
YYZatcboy
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RE: Metar Code "frg"?

Sat Jun 15, 2013 2:53 am

METARS are not all automated. only the ones that go "METAR xxxxx AUTO xxxxxxxxxxxx"

For example:

CYLW 150200Z AUTO 33011KT 9SM OVC120 19/10 A3000 RMK MAX WND 35024KT AT 0102Z SLP160 DENSITY ALT 2100FT
DHC1/3/4 MD11/88 L1011 A319/20/21/30 B727 735/6/7/8/9 762/3 E175/90 CRJ/700/705 CC150. J/S DH8D 736/7/8

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