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This storm is unnamed. If the information appears to be out of date, its name may have changed, so visit the main page for the latest information.

26U Current Status

Current Wind Speed 35 knots / MPH

Max Predicted Wind Speed 50 knots / MPH at

26U Land Hazards

Maurice / Mauritius / Rodrigues / Agalega
Welcome to Mauritius Meteorological Services
La Réunion

26U Tracker

26U Satellite Loop

26U Alternate Tracking Map

26U Spaghetti Models

Spaghetti models for 26U can be found here:

26U spaghetti models page »

26U Watches and Warnings

Tropical Low 26U Tropical Cyclone Update

Tropical Low 26U Public Advisory

IDW27600
TROPICAL CYCLONE TECHNICAL BULLETIN: AUSTRALIA - WESTERN REGION
Issued by PERTH TROPICAL CYCLONE WARNING CENTRE
at: 0700 UTC 06/04/2017
Name: Tropical Low  
Identifier: 26U
Data At: 0600 UTC
Latitude: 13.4S
Longitude: 111.0E
Location Accuracy: within 40 nm [75 km]
Movement Towards: south southwest [196 deg]
Speed of Movement: 5 knots [10 km/h]
Maximum 10-Minute Wind: 35 knots [65 km/h]
Maximum 3-Second Wind Gust: 50 knots [95 km/h]
Central Pressure: 1000 hPa
Radius of 34-knot winds NE quadrant:    
Radius of 34-knot winds SE quadrant:    
Radius of 34-knot winds SW quadrant: 60 nm [110 km]
Radius of 34-knot winds NW quadrant: 60 nm [110 km]
Radius of 48-knot winds NE quadrant:    
Radius of 48-knot winds SE quadrant:    
Radius of 48-knot winds SW quadrant:    
Radius of 48-knot winds NW quadrant:    
Radius of 64-knot winds:    
Radius of Maximum Winds:    
Dvorak Intensity Code: T2.5/2.5/D1.5/24HRS STT:S0.0/06HRS
Pressure of outermost isobar: 1006 hPa
Radius of outermost closed isobar: 120 nm [220 km]
FORECAST DATA
Date/Time    : Location    : Loc. Accuracy: Max Wind   : Central Pressure
[UTC]        : degrees     :      nm  [km]: knots[km/h]: hPa
+06:  06/1200: 13.7S 110.9E:     050 [095]:  035  [065]:  998
+12:  06/1800: 14.2S 110.9E:     065 [120]:  035  [065]:  998
+18:  07/0000: 14.6S 111.2E:     075 [140]:  040  [075]:  995
+24:  07/0600: 14.9S 111.4E:     090 [165]:  040  [075]:  995
+36:  07/1800: 15.4S 111.8E:     110 [200]:  050  [095]:  988
+48:  08/0600: 15.9S 111.4E:     130 [235]:  045  [085]:  992
+60:  08/1800: 16.3S 110.5E:     150 [275]:  045  [085]:  992
+72:  09/0600: 16.8S 109.0E:     165 [310]:  040  [075]:  993
+96:  10/0600: 18.0S 105.1E:     210 [390]:  035  [065]: 1006
+120: 11/0600: 19.6S 100.8E:     300 [555]:  030  [055]: 1006
REMARKS:
Tropical low [26U] was located using visible and microwave imagery together with
recent ASCAT passes.

26U has developed considerably overnight. Initial T1 classification was assigned
at 05/0600 UTC.

Dvorak Analysis: Curved band wrap of between 0.4 and 0.5 [with some breaks in
convection] gives a DT of 2.5 [a shear pattern would yield DTs of 3.0]. Trend
was D+ and MET/PAT was 2.5. FT/CI set to 2.5. Intensity set to 35 knots with
gales in the NW and SW quadrants. Most recent visible imagery showed a slight
weakening in the structure of the system.  

ASCAT passes around 02 UTC showed gales in the NW and SW quadrants. This is
consistent with microwave imagery earlier in the day with persistent deep
convection in those quadrants. 

SSTs are 29-30C and ocean heat content is favourable.

CIMSS showed good poleward outflow and upper divergence. CIMSS shear of 15/20
knots appears a little higher than satellite imagery would suggest. 

The system is forecast to become a tropical cyclone during Friday. Given the
lack of strong synoptic forcing, the intensity may fluctuate somewhat.
Intensification to category 2 is possible for a period. The presence of dry air
and increasing shear late Sunday should cause the system to weaken, however,
gales may persist in southern quadrants due to the pressure gradient associated
with a ridge of high pressure to the south.

The system is being steered towards the south southeast due to an upper trough
passing to the south. On Saturday, a building mid level ridge will steer the
system towards the southwest. The majority of NWP guidance is consistent with
the forecast track.

Tropical low [26U] is not expected to produce gales at Christmas Island or the
WA mainland.

Copyright Commonwealth of Australia
==
The next bulletin for this system will be issued by: 06/1330 UTC by Perth TCWC.

Public Advisory not available for this storm.

Tropical Low 26U Forecast Discussion

Forecast Discussion not available for this storm.

26U storm path from BOM - PERTH

Time Speed Location Status
35 knots -13.4, 111.0
35 knots -13.7, 110.9
35 knots -14.2, 110.9
40 knots -14.6, 111.2
40 knots -14.9, 111.4
50 knots -15.4, 111.8
45 knots -15.9, 111.4
45 knots -16.3, 110.5
40 knots -16.8, 109.0
35 knots -18.0, 105.1
30 knots -19.6, 100.8


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