Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Apr 26 2026
VAZ012-262000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Sun Apr 26 2026
Date Sun 04/26/26 Mon 04/27/26 Tue 04/28/26
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 73 41 73 45 71
TEMP 65 71 72 62 52 47 43 44 60 69 72 64 53 48 46 48 57 64 70 65
DEWPT 49 46 45 46 44 42 40 39 40 40 38 38 38 38 38 40 46 50 52 53
MAX/MIN RH 37 93 29 77 51
RH 56 41 38 56 74 83 89 82 47 35 29 38 57 68 73 74 67 60 53 65
WIND DIR N NE E E E E E E SE SE SE SE SE SE SE SE S S SW SW
WIND SPD 3 3 4 4 3 3 3 3 3 4 4 4 4 4 4 3 3 4 3 2
CLOUDS SC SC SC SC SC B1 B2 B1 FW FW FW SC FW B1 B1 OV OV OV B1 B1
CLOUDS(%) 46 30 26 27 28 62 70 56 13 18 21 31 17 55 62 92 92 89 65 54
VSBY 10 10 10 10 10 10 5 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 30 90
RAIN SHWRS SC SC O O SC SC SC
TSTMS IS IS IS SC IS
MIX HGT 2 4 4 <1 <1 1 <1 1 2 3 3 <1 <1 <1 <1 <1 <1 2 3 <1
T WIND DIR NE NE E E E E E SE SE SE SE SE SE S S S SW S SW SW
T WIND SPD 5 5 6 8 6 10 11 11 11 11 13 10 10 12 19 14 9 11 10 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 18 29 35 4 3 5 5 18 28 45 58 5 5 8 13 17 10 30 36 4
MAX LVORI 2 2 1 3 4 5 6 4 2 1 1 2 3 3 4 3 3 1 1 3
STABILITY A A A F G F F B A A A F F E E B B C B F
CEILING None None None 100 None None None 1200 500 400
STA PRES 27.20 27.23 27.32 27.35 27.42 27.36 27.38 27.34 27.36 27.27
Date Wed 04/29/26Thu 04/30/26Fri 05/01/26Sat 05/02/26
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 52 69 42 61 34 60 36 59
TEMP 54 55 66 60 47 44 58 52 40 38 58 52 40 39 57 51
DEWPT 52 52 55 50 43 38 33 31 31 29 31 32 33 33 33 30
RH 93 90 68 69 86 79 39 44 70 70 36 46 76 79 40 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 OV OV B1 SC SC SC FW FW SC B1 B1 B1 B1 SC
POP 12HR 70 100 30 10 10 30 40 30
RAIN SHWRS SC NM O O SC IS SC SC SC SC IS
TSTMS IS SC 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