The following is an example of a storm warning issued by the National Weather Service office in Seattle, Washington. The only exception is that if the extreme winds are associated with a tornado, a tornado warning (or more likely a tornado emergency) will be issued instead. Winds in excess of 115 MPH (100 kt) will always result in new issuance of an extreme wind warning shortly before their onset, typically right before the eyewall of a major hurricane makes landfall, but possibly as a substitute for a severe thunderstorm warning in an extreme derecho event. In most cases, the warning applies to winds of 40-114 MPH for at least 1 hour or any gusts of 58-114 miles per hour on land unless a tropical storm warning, blizzard warning, winter storm warning, severe thunderstorm warning, or dust storm warning covers the phenomenon. On land, the National Weather Service issues a 'high wind warning' (Specific Area Message Encoding code: HWW) for storm-force winds, which also encompasses the lesser gale-force and greater hurricane force winds. The same flag as a storm warning is used to indicate a tropical storm warning. In US maritime warning flag systems, a red square flag with a black square taking up the middle ninth of the flag is used to indicate a storm warning (the use of two such flags denotes a hurricane force wind warning or a hurricane warning). If the winds are associated with a tropical cyclone, a tropical storm warning will be substituted for the storm warning and less severe gale warning. The winds must not be associated with a tropical cyclone. Regional authorities warned on Friday against the health risks from the extended heat, advising people to drink at least 1.5 litres of water each day and limit time spent outdoors.At sea, a storm warning is a warning issued by the National Weather Service of the United States when winds between 48 knots (89 km/h, 55 mph) and 63 knots (117 km/h, 73 mph) are occurring or predicted to occur soon. In the northern port city of Tianjin, with a population of more than 13 million, the temperature reached 41.2 degrees C (106.16 F) on Thursday, smashing regional records. High temperature monitoring and warnings would continue on a rolling basis in places such as Beijing, Tianjin, Hebei, Shandong, Henan and Inner Mongolia, it added. On Thursday, the China Meteorological Administration said it expected high temperatures to persist across much of the north for the next eight to ten days. A red alert signifies the temperature is set to rise above 40 degrees C (104☏) within 24 hours. Thursday's daily maximum was Beijing's second-highest in history, just below the 41.9 degrees C (107.42 F) registered on July 24, 1999.Ĭhina follows a four-tier weather warning system in which the colour red indicates the most severe, followed by orange, yellow and blue. The previous June high was 40.6 degrees C (105.08 F) on June 10, 1961. The southern suburbs weather station, considered to be Beijing's main gauge, recorded a temperature of 41.1 degrees C (105.98 F) in the afternoon. On Thursday, the maximum temperature in the city of nearly 22 million breached 41 degrees C (105.8 F), shattering the record for the hottest day in June. But I hope that older people will go out as little as possible." "I'm definitely worried, but I think I'm still young and can handle it. "The temperature outside is just too hot," said a 28-year-old Beijing resident, surnamed Zhang, who works in the food and beverages sector. "This is the first time since the establishment of the observatory that there has been a high temperature of more than 40 degrees C for two consecutive days," Zhang Yingxin, its chief forecaster, told a press briefing. (0530 GMT) on Friday, to top out at 40.3 degrees C (104.54 F) by 4 p.m., the municipal observatory said. The official temperature, measured in Beijing's southern suburbs, hit 40 degrees C just after 1:30 p.m. BEIJING, June 23 (Reuters) - Beijing upgraded its hot weather warning on Friday to "red", the highest in its colour-coded alert system, as many parts of the Chinese capital roasted in temperatures up to 40 degrees Celsius (104 F).
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