Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri May 1 2026
NCZ003-012000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Fri May 1 2026
Date Fri 05/01/26 Sat 05/02/26 Sun 05/03/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 67 45 62 36 67
TEMP 56 64 67 64 53 50 47 46 52 57 61 56 47 42 38 41 54 63 66 60
DEWPT 35 38 39 40 43 41 40 39 40 39 36 34 32 30 29 30 32 33 32 36
MAX/MIN RH 35 76 39 72 29
RH 45 38 36 41 69 71 76 76 63 51 39 43 56 62 70 65 43 32 28 41
WIND DIR SE S SW W NW NW NW N N N N NW NW NW NW NW NW NW W W
WIND SPD 4 6 6 2 2 2 3 3 3 4 5 4 3 2 2 3 4 5 5 2
WIND GUST 12 14 14 12
CLOUDS FW FW B1 B2 OV B2 OV OV OV B2 B1 SC SC FW FW FW CL CL CL FW
CLOUDS(%) 24 18 57 85 92 72 95 96 90 87 69 37 29 8 12 11 4 4 4 7
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 20 30 10 0
RAIN S S C C S S
MIX HGT 4 6 8 <1 2 2 2 2 4 6 7 1 <1 <1 <1 3 5 7 7 <1
T WIND DIR SE S SW S SW N N N N N NW NW NW NW NW NW NW NW W SW
T WIND SPD 5 10 10 10 2 9 11 12 16 14 17 18 12 10 6 18 14 12 12 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 26 71 51 5 1 4 5 33 70 98 84 8 6 5 3 64 99104105 2
MAX LVORI 2 1 1 2 3 3 4 3 1 1 1 2 3 3 3 1 1 1 1 2
STABILITY A B C F F F F B B B C F G G G A A A A G
CEILING None 5600 10900 3400 8500 8000 None None None None
STA PRES 28.09 28.01 28.01 28.01 27.99 27.97 28.08 28.13 28.18 28.12
Date Mon 05/04/26Tue 05/05/26Wed 05/06/26Thu 05/07/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 40 75 45 77 53 76 51 72
TEMP 43 46 71 69 51 50 74 71 59 56 70 70 57 53 67 63
DEWPT 34 36 43 44 43 44 47 49 50 52 57 55 51 46 45 42
RH 70 68 36 40 74 80 38 46 72 86 63 59 80 77 45 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL FW SC FW SC FW SC B1 B1 B2 B2 B1 B1 B1 B1
POP 12HR 0 5 0 10 40 60 50 30
RAIN SHWRS IS SC NM NM SC SC SC SC
TSTMS SC IS IS SC
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
FRZG RAIN......Freezing rain
FRZG DRZL......Freezing drizzle
COVERAGE...
IS.............Isolated
SC.............Scattered
NM.............Numerous
O..............Occasional
S..............Slight chance
C..............Chance
L..............Likely
WD.............Widespread
D..............Definite
AR.............Areas
PA.............Patchy
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions