LALO BANG UMIINIT ANG ULO SA SOBRANG INIT?
Simula noong ideklara ang tag-init sa Pilipinas, laman ng balita na minsan ay umaabot na sa dangerous level ang heat index.
Ano ba ang mga terminong ito at bakit hindi ito dapat baliwalain. Here’s what you #NeedToKnow
Simula noong ideklara ang tag-init sa Pilipinas, laman ng balita na minsan ay umaabot na sa dangerous level ang heat index.
Ano ba ang mga terminong ito at bakit hindi ito dapat baliwalain. Here’s what you #NeedToKnow
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NewsTranscript
00:00DANGER LEVELS
00:02This is where the heat index in the Philippines and other countries in Southeast Asia comes into play.
00:09How does the heat index affect our body?
00:14Here's what you need to know.
00:18The heat index refers to the temperature of the human body.
00:23This is measured by the temperature and relative humidity, or the amount of moisture in the air.
00:30The higher the temperature and relative humidity, the higher the heat index.
00:36The heat index is totally different from the body temperature, which is normally 37 degrees.
00:44To better understand,
00:46according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration,
00:52the higher the temperature in a place, the hotter our body will feel.
00:57That's why we sweat to cool down or reduce the heat we feel.
01:03When sweat evaporates, our body feels hot.
01:08But if the relative humidity or the amount of moisture in the air is high,
01:13it prevents the sweat from evaporating quickly.
01:17So it accumulates.
01:19We sweat a lot.
01:21We sweat a lot.
01:23And then we also feel very hot.
01:26That's the heat index.
01:29Some places in the country are experiencing extreme heat again today.
01:33The hottest temperature in the country has risen to 48 degrees Celsius again.
01:39There are daily reports that the heat index is reaching dangerous levels.
01:44What does this mean?
01:46It has a side effect on the human body,
01:49the high or low heat index in the country.
01:54The heat index can be considered a dangerous level between 42 to 51 degrees Celsius.
02:01It is possible to have heat cramps, dizziness, and heat stroke if the exposure to this condition continues.
02:08If the heat index is higher than 52 degrees Celsius,
02:13like the 55 degrees Celsius heat index in Dagupan City in 2022,
02:19it can be considered extremely dangerous.
02:22There is a high chance of having a heat stroke.
02:25It is important that we understand the heat index concept and categories
02:31because this will help us know that this is the indicator if we are exposed directly to sunlight.
02:38If we are exposed to sunlight, we will feel a slight sweat,
02:43we will feel a slight dizziness, and we will feel dehydrated.
02:47At that time, we should start taking steps to avoid further health illnesses
02:56or health-related conditions that may have negative effects on our body.
03:01According to Pag-asa, there are also some factors that are affected by temperature and relative humidity
03:07that can also raise the heat index in a place, such as elevation.
03:12If the elevation or those in the low-lying area is lower, the temperature is hotter,
03:18like Manila, which is only 13 meters above sea level.
03:22The best example of this is Baguio, which is around 1,500 meters elevation.
03:30So the temperature they can get is relatively cold compared to the low-lying areas.
03:35Places near coastal areas or bodies of water are also prone to high relative humidity.
03:42The temperature that is recorded every hot dry season from March to May is also higher.
03:49According to our climatological analysis of the heat index and temperature,
03:54the temperature really starts to rise after March.
03:59Then it continues to rise towards April,
04:02and the highest heat index values are usually observed during the month of May.
04:10There are also large atmospheric systems that are affected by the heat of the weather in the country,
04:16such as the rising ridge of the high-pressure area in some parts of the country.
04:21If it's a high-pressure area, it suppresses the convective activity or the formation of clouds.
04:30It means that the rainfall is less likely to happen.
04:35And also, if it's a high-pressure area, since there is no rain, the experience is hotter
04:41because the sunlight is direct on the ground and there is no blocking light.
04:45If there is a cloud, of course, our surface will not be too hot.
04:49According to the forecast, it is still possible to experience a high heat index until May.
04:55El Niño is still experiencing an increase and dryness in some parts of the country.
05:01The effect of El Niño is less rainfall and higher temperature, a hotter temperature.
05:08So its contribution, if we add that this season, March-April, is really hot,
05:14plus the effect of El Niño, it will really increase,
05:18aside from the dry temperature, our heat index measurements.
05:22To avoid heat-related illnesses, here are some reminders from experts.
05:27As much as possible, stay inside the house and avoid outdoor activities.
05:33If you need to go out, use a sunblock, umbrella or wear an umbrella.
05:39Also wear lightweight and comfortable clothes.
05:42And always drink water to avoid dehydration.