Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Sat Apr 25 2026
VAZ024-252000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
431 AM EDT Sat Apr 25 2026
Date Sat 04/25/26 Sun 04/26/26 Mon 04/27/26
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 84 53 64 45 73
TEMP 56 58 78 82 77 68 64 60 56 53 57 63 64 57 53 48 46 47 61 70 73 66
DEWPT 49 51 55 55 58 57 57 56 54 51 50 49 46 43 43 41 41 40 40 41 41 41
MAX/MIN RH 39 93 53 84 32
RH 77 77 45 40 52 68 78 87 93 93 77 60 52 59 69 77 83 76 46 35 31 40
WIND DIR NW NW SW SW W W SW W N N NE NE NE NE NE NE NE N NE E E E
WIND SPD 1 1 2 5 4 2 1 1 2 3 5 6 6 5 3 2 2 2 3 5 4 2
WIND GUST 17 19 13
CLOUDS FW SC SC B2 OV OV B2 B1 B1 B2 B1 B1 SC SC SC SC SC SC FW FW FW FW
CLOUDS(%) 13 34 33 80100 96 80 66 67 81 68 58 45 35 44 50 41 28 25 17 15 20
VSBY 10 10 10 9 7 6 6 6 6 6 6 7 7 10 10 10 10 10 10 10 10 10
POP 12HR 80 80 30 10 5
RAIN SHWRS NM O O SC IS SC SC IS IS IS
TSTMS SC SC SC
MIX HGT <1 <1 5 5 2 <1 <1 <1 1 2 3 4 4 1 <1 <1 <1 2 4 4 4 <1
T WIND DIR NW NW SW SW W NW W NW N NE N NE NE NE NE E NE NE E E E SE
T WIND SPD 3 2 9 11 13 4 2 2 3 9 14 12 13 13 4 6 8 6 8 6 6 4
DISPERSION VP VP VP VP VP PR VP VP VP VP
ADI 2 2 60 67 25 2 1 1 2 21 48 47 60 6 2 3 4 15 36 39 37 2
MAX LVORI 4 4 1 1 2 3 5 5 7 4 3 1 1 3 3 4 5 4 1 1 1 2
STABILITY G A A B D F F F F B C C B F F F F A A A A G
CEILING None 5700 5200 27500 1100 None None None None None
STA PRES 28.30 28.27 28.29 28.34 28.47 28.52 28.62 28.65 28.69 28.65
Date Tue 04/28/26Wed 04/29/26Thu 04/30/26Fri 05/01/26
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 44 70 52 76 51 72 41 69
TEMP 49 48 67 67 56 54 73 69 57 52 69 64 47 45 67 63
DEWPT 40 41 47 51 50 52 57 55 51 49 40 37 36 37 39 41
RH 71 77 49 56 80 93 57 61 80 89 35 37 65 73 36 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B2 B1 B1 B1 B2 B2 B1 SC SC SC SC SC B1 B1
POP 12HR 10 50 30 70 30 20 20 40
RAIN SHWRS SC SC IS SC SC NM SC IS IS IS IS SC SC
TSTMS 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