SINCE THE RADIATION IS AT THE LOW LEVELS OF ATMOSPHERE, WE CONSIDER ALL PARAMETERS OF LOW LEVEL WINDS OF ATMOSPHERE BELOW
PARTICLES SHALL NOT CIRCULATE GLOBALLY LIKE THAT OF VOLCANIC ASH DUE TO ATTAINING THE HEIGHT OF JET STREAM
The ongoing release of radiation from the Fukushima Dai-ichi plant has affected a wide area including almost entire Japan with a 20km radius evacuation zone around the Fukushima plant
and 30km radius no flying zone and advisory of remaining indoor!
The radiation level inside the Fukushima plant reached 0.4 Sievert on Tuesday.
( Courtesy- Wikipedia)
Symptoms of acute radiation (within one day):
- 0 – 0.25 Sv (0 - 250 mSv): None
- 0.25 – 1 Sv (250 - 1000 mSv): Some people feel nausea and loss of appetite; bone marrow, lymph nodes, spleen damaged.
- 1 – 3 Sv (1000 - 3000 mSv): Mild to severe nausea, loss of appetite, infection; more severe bone marrow, lymph node, spleen damage; recovery probable, not assured.
- 3 – 6 Sv (3000 - 6000 mSv): Severe nausea, loss of appetite; hemorrhaging, infection, diarrhea, skin peels, sterility; death if untreated.
- 6 – 10 Sv (6000 - 10000 mSv): Above symptoms plus central nervous system impairment; death expected.
- Above 10 Sv (10000 mSv): Incapacitation and death.
Thus a level of 0.40 is very minor as compared to other high values.
Winds around the Fukushima plant-
With the development of a strong tropical low NE of mainland of Japan, surface and adjacent surface winds have picked up right now in the nation especially the eastern coasts.
Japan is right now recording winds upto 30km/hr from NORTH direction with the temperature ( At time of Post) around 3C
Whereas in Fukushima,the winds are upto 17km/hr from NW with negative temp of -4C.
With the NE propogation of the low, surface winds in the Fukushima peaked at 1100hrs ( LT) of 37km/hr FROM WEST reaching to max gust of 57km/hr. The air pressure was around 995mb which indicate the vicinity of the low pressure.
As depicted by the weather map by Japan Meteorological Agency, the low is a 970mb system!
Due to this low pressure,THE SURFACE WINDS AND LOW LEVEL WINDS WILL CONTINUE TO BE FROM NORTH,NORTH-WEST AT FUKUSHIMA AREA.
ALL TIME MENTIONED BELOW ARE UTC
** READERS FROM JAPAN SHALL ADD 9 HOURS TO THE FORECAST TIMES
WINDS SHALL BE AROUND 25KT ON ( THURSDAY)
WITH THE OVERALL SETUP PERMISSIBLE FOR NORTH,NORTH-WESTERLY WINDS TILL EARLY FRIDAY,
WINDS SHALL REGULATE FROM NORTH AS A HIGH PRESSURE AREA ( 1027MB) REACHES SW OF JAPAN
THE HIGH PRESSURE IS EXPECTED TO PASS THROUGH JAPAN ON FRIDAY EVENING PERIOD MAKING THE WINDS FROM NORTH AND TURNING FROM EAST TO FOR SHORT PERIOD ON FRIDAY.
AS THE HIGH PRESSURE MOVES TOWARDS EAST, WINDS SHALL AGAIN BE FROM NORTH,NORTH-WEST
IF THE RADIATION CONTINUES TO SPREAD AROUND FUKUSHIMA FOR THE COMING DAYS WHERE ALREADY RADIATIONS HAVE BEEN RELEASED IN THE LOWER ATMOSPHERE,THE SURFACE AND LOW WINDS SHALL BE PUSHING THE MATTER INTO THE PACIFIC THUS SHALL NOT AFFECT THE MAIN LAND OF JAPAN
** - A SLIGHT SHIFT OF THE WINDS ON FRIDAY IS EXPECTED DUE TO THE HIGH PRESSURE TRANSIT.
IT SHALL PARTLY SEND SOME MATTER TOWARDS THE SOUTH-EASTERN COAST OF JAPAN****
**** - UNCERTAINTY EXISTS
** PARTS OF ASIA SHALL NOT BE AFFECTED DUE TO THE RADIATION.
** NO THREAT TO USA.