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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Apr 24 2026
VAZ018-250800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Fri Apr 24 2026
Date 04/24/26 Sat 04/25/26 Sun 04/26/26 Mon
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 58 78 54 67 44
TEMP 63 61 58 61 75 75 69 64 60 58 55 55 58 63 66 59 51 48 45 46
DEWPT 46 46 47 50 55 56 57 56 55 54 52 52 52 50 49 45 43 41 39 39
MIN/MAX RH 68 46 90 52 81
RH 54 58 67 67 50 52 66 75 84 86 90 90 80 62 54 60 74 77 79 76
WIND DIR W W W W W W W NW W NW NW N NE NE E E E NE NE NE
WIND SPD 1 1 1 2 3 5 4 2 2 2 2 4 5 6 6 5 4 3 3 3
WIND GUST 16 18 16 13 14 19 19 18 19 20 19 17 16 17
CLOUDS FW CL SC B1 SC B2 OV B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC FW
CLOUDS(%) 9 5 47 69 47 87 93 87 87 71 71 72 76 64 51 38 38 43 36 22
VSBY 10 10 10 10 10 9 7 7 6 6 6 6 6 7 7 10
POP 12HR 10 90 80 50 20
RAIN SHWRS NM O O O NM NM SC SC SC SC IS IS
TSTMS SC SC IS
MIX HGT <1 <1 <1 <1 5 5 2 <1 <1 <1 <1 <1 2 3 3 1
T WIND DIR W W W W W W NW W NW NW NW N N NE NE E
T WIND SPD 3 3 3 3 14 13 20 5 6 6 14 10 6 11 6 9
DISPERSION VP VP VP VP VP VP VP PR VP VP VP
ADI 2 2 2 3 99 56 42 3 3 3 7 10 18 39 23 4
MAX LVORI 2 3 3 3 1 1 1 4 5 6 5 5 3 1 2 3
STABILITY G G G A A C B F F F F C C C C F
CEILING None None 3200 7200 800 1400 600 None None
STA PRES 27.62 27.58 27.58 27.57 27.57 27.62 27.72 27.77
Date 04/27Tue 04/28/26Wed 04/29/26Thu 04/30/26Fri 05/01/26
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 72 46 72 55 76 51 71 47 66
TEMP 68 63 49 48 65 65 57 56 74 66 54 53 68 63 50 49 63 58
DEWPT 42 41 39 42 51 52 51 51 52 48 45 45 44 41 41 43 44 42
RH 39 44 68 80 60 63 80 83 46 52 71 74 42 44 71 80 50 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2
POP 12HR 10 20 60 30 50 40 40 50 60
RAIN SHWRS IS NM NM SC IS SC SC SC SC SC SC SC SC NM NM
TSTMS 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