Convective clouds along coast line

This is a report from the MPR site.
...
At 1310 LT on 18 Dec 2011, convective clouds along coast line over
Sumatera Island (20-30 km inland, around Kinali/Bawan) were found.
At around 1340 LT, it started to rain at Muara Putus.
At 1450 LT, the clouds were migrating toward the sea.
At around 1730 LT, the rain stopped at Muara Putus.
At 2030 LT, the clouds along coast line over the sea (50 km from coast
line) were developing (see PPI at 2.4 deg attached).

Report BPD Pontianak Observation number 37

Radiosonde Observation log

Station	Pontianak (LAPAN Observatory)
Position	0.00 0 S,109.370 E
Altitude	1m MSL

BMKG Tabing Rawinsonde

Report BMKG Tabing Padang (18 UTC ,Dec 17, 2011) 1. Launching 68
2. Max height : 19.776 km
3. Weather : rain
4. T/P/RH : 25.0/1010.4/92 %

Report BMKG Tabing Padang (00 UTC ,Dec 18, 2011)
1. Launching 69
2. Max height : 31,821 km
3. Weather : Cloudy
4. T.24,0C P.1008,9 mb RH.97 %

Report BMKG Tabing Padang (06 UTC ,Dec 18, 2011)
1. Launching 70
2. Max height : 31,185 km
3. Weather : Very Cloudy
4. T.30,6C P.1009,2 mb RH.68 %

- Anizar and Bambang-
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Report BPD Pontianak Observation number 36

Radiosonde Observation log

 

Station	Pontianak (LAPAN Observatory)
Position	0.00 0 S,109.370 E
Altitude	1m MSL

 

Date (YYYY/MM/DD				2011 /12 /18
Observation Members				Suyadi, dayat, Juliansyah
Observation Number				36
Observation Time				00 (UTC)
Radiosonde Number Radiosonde Frequency				G0553773 404.50 MHz
Ground Check			Reference	P(hPa): 1007,1	T(0C) : 21,7	RH (%): 0
			Difference	P (hPa):- 0,0	T(0C) : -0,1	RH (%): 0
Sonde Release Time				06.30 LST
Observation End Time				07:44:08 LST
Flight Direction (16 direction)				West
Maximum Elevation				20808 (km)
Archive File Name				111218 / 111218.001
Weather Condition				Fine
Cloud Amount				7/8  3Octus
Surface	Pressure			1007,6    (hPa)
	Temperature			22,8         (0C)
	Relative Humidity			100      (%)
	Surface Wind Direction			101  (deg)
	Suferface Wind Speed			1,2   (m/s)
Comments		Observation success

 

souding report of sipora ( dec. 17)

shift day : susi, wu

00UTC

Max. Elevation : 20.383
weather : cloudy
pressure : 1007.6
temperature : 25.6
Humidity : 83
wind direction : 52
wind speed : 0.7

06UTC

Max. Elevation : 20.453
weather : over cast
pressure : 1008.3
temperature : 28.0
Humidity :72
wind direction :39
wind speed : 0.3

shift night : Iyan, Jeni

12UTC

Max. Elevation : 19.751
weather : rain full
pressure : 1007.5
temperature : 24.3
Humidity : 89
wind direction : 213
wind speed : 1.3

18UTC

Max. Elevation : 20.208
weather : cloudy
pressure : 1008.7
temperature : 24.2
Humidity : 91
wind direction : 155
wind speed : 0.0

sipora
iyan, jeni