Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sat Apr 25 2026
VAZ018-260800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 PM EDT Sat Apr 25 2026
Date 04/25/26 Sun 04/26/26 Mon 04/27/26 Tue
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 52 74 46 72 48
TEMP 67 63 59 56 53 54 63 70 71 59 52 48 47 47 59 68 71 63 55 50 48 50
DEWPT 58 55 54 51 49 50 52 50 48 46 44 42 41 42 43 42 42 40 40 39 39 42
MIN/MAX RH 89 44 83 34 73
RH 73 75 83 83 86 86 67 49 44 62 74 80 79 83 55 39 35 43 57 66 71 74
WIND DIR W NW NW NW NW N NE E E E E E E E E SE SE SE SE SE SE SE
WIND SPD 5 2 2 2 2 2 3 5 6 5 3 2 2 2 3 5 5 4 3 3 3 2
WIND GUST 12 13 14 17 20 16 13 12 12 16 16 17 16 16 14 14
CLOUDS OV OV B1 B1 SC B1 B1 SC SC FW SC B1 B1 B1 FW FW FW FW FW SC B1 OV
CLOUDS(%) 100100 61 60 41 65 52 45 29 18 39 53 62 53 21 15 17 23 20 38 57 88
VSBY 6 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7
POP 12HR 40 0 10 5 20
RAIN SHWRS SC SC IS IS O
MIX HGT 2 <1 <1 <1 <1 1 2 4 4 1 <1 <1 <1 1 2 3 3 <1
T WIND DIR W NW NW NW NW N N NE E E E E E NE E SE SE SE
T WIND SPD 16 16 9 6 14 9 8 6 6 10 11 4 6 5 9 6 9 12
DISPERSION VP VP VP VP PR VP VP VP VP VP VP VP
ADI 40 7 4 3 7 13 25 31 31 5 5 2 3 10 29 28 40 6
MAX LVORI 3 4 5 5 4 4 3 1 1 3 3 4 5 4 2 2 1 2
STABILITY C F F G G A B A B F G F F B A A A F
CEILING 1300 None None None None 1500 None None None
STA PRES 27.61 27.65 27.74 27.79 27.88 27.93 27.96 27.91
Date 04/28Wed 04/29/26Thu 04/30/26Fri 05/01/26Sat 05/02/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 71 56 72 49 65 42 64 43 61
TEMP 64 63 57 58 68 63 54 50 62 57 45 45 61 57 47 45 58 53
DEWPT 52 52 51 53 59 52 45 40 37 32 32 34 35 34 34 35 36 34
RH 65 67 80 83 73 67 71 68 39 38 60 65 38 42 60 68 44 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B1 B1 OV B2 B1 SC SC SC FW SC B1 B1 B1 B1 B1 SC
POP 12HR 80 50 80 30 20 20 40 40 30
RAIN SHWRS O SC SC SC O O SC IS IS IS IS SC SC SC SC SC IS
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