At 2010/01October 28th 17: 45, the Shanghai Central Meteorological Observatory issued a yellow lightning warning signal. It is expected that there will be lightning activities in the central city, Pudong, Chongming, Songjiang, Qingpu, Minhang, Jiading and Baoshan within 3 hours, accompanied by short-term heavy precipitation of 20-30 mm, small hail and northerly winds of 7-9.
There were short showers or thunderstorms in northern Shanghai before midnight yesterday, but the rain was just a preview. Affected by the vortex shear line, there will be a rainstorm to rainstorm in Shanghai from the afternoon of 29th to the morning of 30th, accompanied by lightning, short-term heavy precipitation, strong wind and cooling.
1
The main precipitation period is from midnight on 29th to the morning of 30th, with process rainfall of 30-50mm, local rainfall of 50-70mm, hourly maximum rainfall intensity of 25-35mm, accompanied by lightning. From the morning of the 30th, the rain tends to weaken.
2. Strong wind
Affected by the low pressure entering the sea, from midnight on the 29th to the morning on the 30th, the southeast wind in Shanghai was strong, with the gust on the mainland being 6-7, the Yangtze River estuary and the coastal areas along the Yangtze River being 8-9, and Yangshan Port and the coastal areas of Shanghai being 9- 10. On the afternoon of the 30th, the wind weakened obviously.
Cool down
As of 28 15: 25, the highest temperature at Xujiahui Station was 3 1.4. Affected by precipitation, the temperature in Shanghai will drop significantly today, with the highest temperature around 25.
Step 4: Skills
There will be obvious short-term precipitation in Shanghai from midnight today to early tomorrow morning. If you want to travel during this time, please pay attention to safety and avoid low-lying areas.
This precipitation process is accompanied by lightning activities, so pay attention to prevent lightning hazards.
Put away outdoor items that are easily affected by strong winds, and stay away from billboards and simple structures.
We are experiencing the hottest first five months in history.
According to meteorological monitoring data, from June 65438+1 October1to May 27, the average temperature in Shanghai was 2.4 higher than normal, the highest in the same period in history.
As far as the temperature in May is concerned, from May/KLOC-0 to May 24th, the average temperature was 22.9, which was 2.8 higher than normal, the highest since the official meteorological record.
However, May is not over yet, and these records are not a foregone conclusion. However, from the trend, it is still possible to break the temperature record, although the temperature will be lowered later this week.
skill
There will be obvious short-term precipitation in Shanghai from midnight today to early tomorrow morning. If you want to travel during this time, please pay attention to safety and avoid low-lying areas.
This precipitation process is accompanied by lightning activities, so pay attention to prevent lightning hazards.
Put away outdoor items that are easily affected by strong winds, and stay away from billboards and simple structures.