Australian SIGMETs (except Volcanic Ash)

The Bureau will be upgrading essential systems during the implementation periods below. During this period there may be short (1-3 minute) interruptions to some observations and radar images. Forecasts and warnings are not expected to be impacted.

  • 10:35 - 10:50 AM AEDT on Thursday 16th March (2335 – 2350 UTC on Wednesday 15th March)
  • 10:35 - 10:50 AM AEDT on Monday 20th March (2335 – 2350 UTC on Sunday 19th March)
  • 10:35 - 10:50 AM AEDT on Monday 27th March (2335 – 2350 UTC on Sunday 26th March)

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IDV60075
AUSTRALIAN SIGMETS 18:30 UTC, 26/03/2023
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YMMM SIGMET M10 VALID 261900/262300 YMMC-
YMMM MELBOURNE FIR SEV TURB FCST WI S3640 E09140 - S5000 E10220 -
S5000 E09300 - S3950 E08730 - S3730 E07510 - S3400 E07500 FL140/360
MOV E 25KT NC
RMK: MW=

YMMM SIGMET U04 VALID 261859/262259 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S0400 E08610 - S0440 E08550 -
S0510 E08400 - S0340 E08030 - S0310 E08040 - S0250 E08410 TOP FL530
MOV E 20KT NC
RMK: MW=

YMMM SIGMET T05 VALID 261847/262247 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S1000 E09350 - S1140 E09510 -
S1220 E09420 - S1230 E09250 - S1030 E09150 TOP FL530 STNR NC
RMK: MW=

YMMM SIGMET H11 VALID 261843/262243 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S1200 E11110 - S1850 E11520 -
S1920 E11330 - S1550 E10810 - S1220 E10630 - S1200 E10700 TOP FL540
STNR NC
RMK: MW=

YMMM SIGMET K10 VALID 261842/262242 YMMC-
YMMM MELBOURNE FIR SEV ICE FCST WI S2950 E13240 - S3200 E14350 -
S3420 E14610 - S3730 E14500 - S3700 E13700 - S3130 E13120
10000FT/FL210 MOV ESE 20KT NC
RMK: ME=

YBBB SIGMET A04 VALID 261841/262241 YMMC-
YBBB BRISBANE FIR SEV TURB FCST WI S2330 E15340 - S2010 E15130 -
S2620 E16300 - S2840 E16300 FL320/400 STNR NC
RMK: BN=

YMMM SIGMET M09 VALID 261500/261900 YMMC-
YMMM MELBOURNE FIR SEV TURB FCST WI S3330 E07500 - S3900 E09130 -
S5000 E09920 - S5000 E08730 - S3950 E08400 - S3710 E07500 FL140/360
MOV E 25KT NC
RMK: MW=

YMMM SIGMET U03 VALID 261459/261859 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S0410 E08450 - S0430 E08450 -
S0500 E08150 - S0410 E07900 - S0250 E08020 TOP FL530 STNR NC
RMK: MW=

YMMM SIGMET T04 VALID 261447/261847 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S0940 E09800 - S1050 E09740 -
S1230 E09250 - S0840 E09120 TOP FL530 STNR NC
RMK: MW=

YMMM SIGMET H10 VALID 261443/261843 YMMC-
YMMM MELBOURNE FIR EMBD TS OBS WI S1200 E11200 - S1500 E11240 -
S1450 E11500 - S1820 E11350 - S1600 E10940 - S1250 E10740 - S1200
E10830 TOP FL540 STNR NC
RMK: MW=

YMMM SIGMET K09 VALID 261442/261842 YMMC-
YMMM MELBOURNE FIR SEV ICE FCST WI S2930 E13250 - S3234 E14628 -
S3450 E14940 - S3720 E14800 - S3650 E13900 - S3110 E13110
10000FT/FL210 MOV ESE 20KT NC
RMK: ME=

YBBB SIGMET A03 VALID 261441/261841 YMMC-
YBBB BRISBANE FIR SEV TURB FCST WI S3000 E16300 - S2150 E15110 -
S2030 E15330 - S2740 E16300 FL320/400 STNR NC
RMK: BB=

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