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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Fri Apr 24 2026
NCZ003-250800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
901 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 56 81 56 70 46
TEMP 65 60 57 59 76 80 78 67 62 60 58 57 63 67 69 64 55 49 46 48
DEWPT 49 49 49 51 54 54 56 58 59 58 57 55 55 53 51 49 46 44 42 42
MIN/MAX RH 76 40 97 53 86
RH 56 67 75 75 46 41 47 73 90 93 96 93 75 61 53 58 72 83 86 80
WIND DIR N N N W SW SW W NW W NW N N NE NE NE NE NE NE NE NE
WIND SPD 0 0 0 2 4 6 6 6 5 5 5 6 9 10 10 12 11 10 8 6
WIND GUST 20
CLOUDS FW FW FW B1 SC B1 OV OV OV B2 B2 B1 B1 B1 B1 SC SC SC SC FW
CLOUDS(%) 25 6 25 51 29 69 88 88 88 75 75 65 65 53 53 38 38 28 28 24
VSBY 10 10 10 10 10 9 8 9 6 6 6 6 6 7 7 10
POP 12HR 5 70 80 50 20
RAIN SHWRS SC SC O O NM NM SC SC SC SC IS IS IS IS
TSTMS IS SC IS IS IS
MIX HGT <1 <1 <1 <1 5 8 5 <1 <1 <1 <1 <1 3 3 4 <1
T WIND DIR W W W N W SW SW N N NW NW N N NE NE NE
T WIND SPD 2 2 2 0 11 13 11 16 2 4 9 12 13 10 12 18
DISPERSION VP VP VP PR PR PR PR FR FR FR PR
ADI 1 1 1 0 65 69 49 11 2 3 6 12 48 32 44 16
MAX LVORI 3 3 3 4 1 1 1 3 7 6 6 6 3 1 1 2
STABILITY G G G A A C C E E E E C C C C D
CEILING None None 6800 3800 200 700 None None
STA PRES 28.75 28.74 28.68 28.74 28.77 28.87 28.93
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 71 46 71 53 78 52 74 50 71
TEMP 67 66 50 48 65 67 57 56 75 70 58 54 72 68 55 51 67 65
DEWPT 42 43 42 43 51 54 54 53 56 54 51 49 48 47 47 47 49 49
RH 40 43 74 83 60 63 90 90 52 57 77 83 42 47 74 86 52 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC B2 B2 SC B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B2
POP 12HR 10 20 50 30 40 30 30 40 60
RAIN SHWRS IS SC SC IS SC SC SC SC SC IS SC SC SC SC NM
TSTMS IS SC IS IS
$$
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