Särö/Budskärs väder - Brandrisk (FWI index)  
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FWI


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Denna väderstation beräknar en gång om dagen, strax efter 13, ett brandindex som motsvarar möjlighet/risk för eventuell brand samt dess spridning i naturen. Enkelt uttryckt är detta index klart högre om det är torrt och varmt, inte regnat på några dagar samt om det blåser. Brandriskvaningar från SMHI finns under Watches, Warnings, and Advisories

Prognoskartor från MSB och SMHI - (Brandriskprognoser)

Dessa kartor visar prognoser för den aktuella brandrisken i landet. Kartorna uppdateras av Myndigheten för Sammhällsskydd och Beredskap dagligen under sommarhalvåret med undantag av gräsbrandrisken som endast är aktuell under våren. Läs mer om dessa brandriskkartor på MSB.se

FWI - Local Fire Weather Index

Last Updated: 21/12/24 at noon
Current Weather conditions
TEMP(°C)   RH(%)   WIND(Km/h)   Direction   24 hour rain(mm)
7.1        96      35.7            123         39.0
Yesterdays values
FFMC     DMC     DC    ISI       BUI      FWI
24.9     0      1    0.0      0        0.0
Todays values
FFMC     DMC     DC    ISI       BUI      FWI
8.7     0      1    0.0      0        0.0

FWIgraph
DMC Duff Moisture Code
>30 H
>40 VH SUSPEND the issue of fire permits
 
FFMC Fine Fuel Moisture Code
<58 L No fire ignitions
=74 M 50% fire ignitions
>86 VH All fires will readily ignite
>92 E Extreme fire behaviour
 
DC Drought Code
>200 H
>300 VH SUSPEND the issue of fire permits
>350 E Prolonged Mop Up following fires
 
ISI Initial Spread Index
>10 E Rapid Spread of fires
 
BUI Buildup Index
>40 H
>60 VH SUSPEND the issue of fire permits
 
FWI Fire Weather Index
>30 E Extreme Fire
Intensity / Control Difficulty
 
L = Low fire danger
M =  Moderate fire danger
H =  High fire danger
VH =  Very High fire danger
E =  Extreme fire danger

SMHIs Brandriskprognoser: SMHIs Brandrisk
Information om dessa koder: Förklaring av FWI koder och uträkningar
Kanadensisk förklaring av FWI: Förklaring av FWI koder och uträkningar

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