12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC...

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Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central Pressure: 970 mb Movement: NNE 12 kt Structure 64 KT....... 35NE 35SE 30SW 30NW 50 KT....... 70NE 90SE 60SW 60NW 34 KT.......180NE 200SE 200SW 175NW 12 FT SEAS..400NE 300SE 350SW 350NW

Transcript of 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC...

Page 1: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Initial Situation00 UTC 22nd

NHC Operational Analysis

03 UTC 22nd

Location: 31.8°N 56.3°W

Intensity: 75 kt

Central Pressure: 970 mb

Movement: NNE 12 kt

Structure64 KT....... 35NE 35SE 30SW 30NW

50 KT....... 70NE 90SE 60SW 60NW

34 KT.......180NE 200SE 200SW 175NW

12 FT SEAS..400NE 300SE 350SW 350NW

Page 2: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Phase Space Diagram 1UKMET Analysis through 00 UTC 22nd

Page 3: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Phase Space Diagram 2UKMET Analysis through 00 UTC 22nd

Page 4: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Current Status

• How would you describe the cyclone at this point based on the phase space analysis?

Page 5: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

UKMET Model ForecastsModel Initialized at 00 UTC 22nd

Page 6: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Analysis Valid at 00 UTC 22nd

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 7: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 12 UTC 22nd

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 8: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 00 UTC 23rd

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 9: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 12 UTC 23rd

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 10: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 00 UTC 24th

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 11: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 12 UTC 24th

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 12: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 00 UTC 25th

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 13: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 12 UTC 25th

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 14: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

Forecast Valid at 00 UTC 26th

MSLP and 10-m winds 850-mb rel vort and winds

MSLP, 500-mb height, abs vort and winds MSLP and 250-mb winds

Page 15: 12b1 ExtratropicalTransition Exercise Group3-UKMET-Part1 · Initial Situation 00 UTC 22 nd NHC Operational Analysis 03 UTC 22nd Location: 31.8°N 56.3°W Intensity: 75 kt Central

UKMET Forecast

• When does ET begin?

• When does ET end?