I-Calculator ye-Wind Chill
Ukushisa kwezulu nokuhamba kwezulu, usebenzisa ifomula ye-NWS.
Iziphetho zivuselelwa uma ubhala.
Malunga nale khadi
Wind chill is how cold the air actually feels on exposed skin once moving air is factored in, because wind strips away the thin insulating layer of warmed air around the body and speeds up heat loss. This wind chill calculator uses the current U.S. National Weather Service formula (adopted in 2001): in imperial units, WC(°F) = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T·V^0.16, with T the air temperature in °F and V the wind speed in mph; the metric version, WC(°C) = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T·V^0.16, uses °C and km/h.
As a worked example, an air temperature of 20 °F with a 15 mph wind feels like about 6 °F — roughly 14 degrees colder than the thermometer reads. Raise the wind and the chill deepens, but with diminishing returns, since the V^0.16 term flattens out at high wind speeds. The calculator shows the feels-like temperature, how much colder that is than the actual air, and a table of wind chills across a range of wind speeds so you can see the trend.
The formula is only defined for cold, breezy conditions — at or below 50 °F (10 °C) and winds above about 3 mph (5 km/h) — so above those the "feels like" simply equals the air temperature. Beyond comfort, wind chill matters because it governs how fast exposed skin can freeze: the tool flags frostbite risk, which becomes serious once the wind chill drops below about −18 °C (0 °F) and can freeze skin in under 30 minutes in extreme cold.
Imibuzo ebuzwa kaningi
Yini ifomu le-wind chill?
Ifomula ye-NWS (2001) eyunithini elilawulayo yi-WC = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T·V^0.16, ne-T e °F ne-V e mph. Imodelisa ukulahleka kokushisa kusuka esikhumba esingenalutho njengoba umoya ususa i-layer encane epholile ejikeleze umzimba.
Ngabe imvula ebandayo isebenza nini?
Icaciswa ngezinga lokushisa elingaphansi noma elingaphansi kuka-50 °F (10 °C) kanye nemvula engaphezulu kwe-3 mph (5 km/h). Ngaphakathi kwalezi, umoya unemiphumela encane yokupholisa futhi "iziva ngathi" ilingana nezinga lokushisa lomoya.
Ingabe i-frostbite ingase iqale ngokushesha kangakanani?
Uma imvula iphansi ngaphansi kuka-18 °C (0 °F) i-frostbite ivela, futhi ngaphansi kuka-28 °C (-19 °F) isikhumba esivele sikhona singabanda imizuzu engu-30 noma ngaphantsi - kuqala emvulani enamandla.
Ingabe ukubanda kwezulu kuthinta izinto, noma abantu kuphela?
Umoya obandayo ulinganisela ukuthi isilwane esibandayo silahlekelwa kanjani ukushisa ngokushesha, ngakho-ke kwenza abantu nezilwane zizwe zibanda, kodwa akufanele upholile into efana nemoto noma ipayipi le-water ngaphansi kokushisa kwe-air.
Kungani umoya ongaphezulu awugcinanga ukwenza kube mnandi ngokuya ngezinga?
Ifomuli isebenzisa isivinini somoya kumandla 0.16, okuvela ngokuqinile ekuqaleni bese kuhlanganiswa. Ukusuka ku-5 kuya ku-15 mph ukuwa phansi kwengcindezi ebukekayo kakhulu, kodwa ukusuka ku-40 kuya ku-50 mph kushintsha kancane.
Ingabe i-calculator isebenza ku °F/mph kanye no °C/km/h?
Yebo. Khetha i-imperial ukungenisa i-°F ne-mph noma i-metric ye-°C ne-km/h, futhi ifaka i-NWS elinganayo. Ama-frostbite thresholds ahlolwa nge-metric scale ngaphakathi ukuze ama-unit systems amabili avumelana.
Ngasiphi isimo sezulu lapho ukushisa kwezulu kuyeka ukuthinta?
Ngaphakathi kuka-50 °F (10 °C), noma uma umoya ungaphansi kuka-3 mph (5 km/h), umoya unemiphumela encane yokupholisa futhi ukushisa okubukekayo kulingana nokushisa kwezulu — ngakho-ke i-calculator ibuyisela umbhalo endaweni yenombolo ephansi kulezo zici.
API — sebenzisa le calculator kusuka kukhodi
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Ingxenye yendawo
GET https://calculator.free/api/v1/wind-chill/curl
curl "https://calculator.free/api/v1/wind-chill/?units=imperial&temp=20&wind=15"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/wind-chill/?" + new URLSearchParams({
"units": "imperial",
"temp": "20",
"wind": "15"
}));
const data = await r.json();
console.log(data.results);Izibalo ziyisilinganiso esisetshenziswa ukuqondisa kuphela, hhayi ukucebisa ngezimali, ukwelashwa noma ukukhokha.