National Weather Service United States Department of Commerce

Severe Thunderstorms Tonight in the Mid-Atlantic; Tropical Storm Bertha in the Gulf

Scattered thunderstorms with severe gusts, hail and a tornado risk are possible near a cold front from the Ohio Valley to the Mid-Atlantic tonight. Tropical Storm Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the panhandle of Florida into Louisiana through Wednesday. Read More >

FNUS81 KBTV 292000

FWMCAE
NATIONAL FIRE DANGER RATING FORECAST
NATIONAL WEATHER SERVICE COLUMBIA SC
314 PM EDT AUG 1 2013

FCST,Stat. ID,yymmdd, hr,w,T, RH,Y,M,D, sp,10, tx, tm, hx,hm,p1,p2,F
fcst,381201,130803,13,2,90,56,2,2,ssw,06,,90,71,100,55,0,0,n
fcst,382301,130803,13,1,93,46,2,2,sw,05,,93,72,93,46,0,0,n
fcst,382603,130803,13,2,91,56,2,2,ssw,05,,91,72,100,56,0,0,n
fcst,383101,130803,13,1,93,51,2,2,ssw,03,,93,72,100,51,0,0,n
fcst,383401,130803,13,1,92,56,2,2,s,04,,92,72,100,56,0,0,n
fcst,383701,130803,13,1,93,49,4,4,ssw,04,,93,72,100,49,0,0,n

FCST Forecast for NFDRS point
Stat. ID See Table Below for all Site Id's for CAE Forecast Points
yymmdd year, month, and date (remember the date is always the next day)
hr forecast is valid for 1300 local the next day
w weather (0 is clear, 1 is scattered clouds, 2 is broken clouds, 3 is overcast, 4 is fog, 5 is drizzle, 6 is rain, 7 is snow/sleet, 8 is showers, and 9 is thunderstorms
T Dry bulb temperature at 1300 local tomorrow
RH Relative humidity at 1300 local tomorrow
Y Lightning activity level from 1300 local today to 0600 local tonight (1 is none, 2 is 1-8 strikes, 3 is 9-15 strikes, 4 is 15-25 strikes, 5 is more than 25 strikes, 6 is dry lightning)
M Lightning activity level from 0600 local tonight to 1300 local the next day (see table above for values)
D Wind direction (N, NE, E, SE, S, SW, W, NW)
sp Wind speed in miles per hour
10 10 hour fuel moisture value (not forecast by us)
tx Maximum temperature from 1300 today to 1300 tomorrow
tm Minimum temperature from 1300 today to 1300 tomorrow
hx Maximum relative humidity from 1300 today to 1300 tomorrow
hm Minimum relative humidity from 1300 today to 1300 tomorrow
p1 Precipitation duration (1300-0600 period) in whole hours
p2 Precipitation duration (0600-1300 period) in whole hours
F Wet Flag (Y for yes and N for no) Y is used for widespread rain