Tag Archives: meteorology

Typhoon threat at Fukushima reactor site

Typhoon Roke, the 15th typhoon of the season in the northwest Pacific, is passing in the vicinity of the Fukushima reactor site.  It has already left in its wake significant flooding in Nagoya (southwest of Tokyo) and on the western … Continue reading

Posted in japan ocean | Tagged , , , , , , , | Leave a comment

Scrutiny of evacuations continues

This week the Wall Street Journal published a cluster of frontpage stories (here and here, along with video content) about the evacuation mishaps and tragedies in the wake of the Fukushima Daiichi nuclear incident.  In “How Japan Stumbled in Forecasting … Continue reading

Posted in japan radiation plume | Tagged , , , , , , , , , , , , , , | Leave a comment

Update on the release of plume forecasts by the Japanese government

Last week the Japan Nuclear Safety Commission (NSC) began releasing plume forecasts. The plots show where radiation would go if an incident were to occur in the future, and also display the past forecasts covering the time period since the … Continue reading

Posted in japan radiation plume | Tagged , , , , , , , , , , | Leave a comment

Which reactor event caused the radiation plume toward the northwest?

There has been speculation that the most extreme release of radiation was associated with fires in the fuel pool of reactor 4. The wind and plume maps below support this hypothesis. The aerial radiation mapping conducted March 17-19 by the … Continue reading

Posted in japan radiation plume | Tagged , , , , , , , , , , , | Leave a comment

Japan nuclear agency to release plume forecasts

The Japan Nuclear Safety Commission (NSC) has been criticized for not releasing its airborne plume forecasts as the Fukushima incident unfolded.  At first the agency claimed that its computers were down and so it was not able to generate forecasts. … Continue reading

Posted in japan radiation plume | Tagged , , , , , , , , | Leave a comment

Tropical cyclones and Fukushima

The tropical cyclone season in the western Pacific typically kicks off in June.  Cyclone activity is heightened particularly in the months of July, August and September.  WeatherUnderground has a display of yearly maps of storms in the region.  The map … Continue reading

Posted in japan radiation plume | Tagged , , , , , | Leave a comment

Plume forecast for Japan: 4/17

Winds are projected to shift toward the southeast from the evening of Saturday April 16 through the evening of Sunday April 17 Japan Standard Time (JST).  Some drift over the Boso Peninsula and places inland could happen late in the … Continue reading

Posted in japan radiation plume | Tagged , , , , , | Leave a comment