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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Sat Apr 25 2026
NCZ003-260800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
231 AM EDT Sat Apr 25 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 54 82 53 71 43
TEMP 56 59 76 77 72 68 62 58 55 57 65 70 70 64 56 49 45 47
DEWPT 48 50 55 56 58 58 57 55 53 52 54 54 53 51 47 44 42 41
MIN/MAX RH 77 43 95 54 90
RH 74 72 48 48 61 70 84 90 93 83 68 57 55 63 72 83 89 79
WIND DIR NW W SW SW W NW NW NW NW N N NE E E E NE NE NE
WIND SPD 1 1 2 4 3 2 1 1 2 2 4 5 5 4 2 2 1 2
WIND GUST 14
CLOUDS FW SC SC OV OV B2 B1 B1 SC B1 B1 B1 B1 SC SC SC SC SC
CLOUDS(%) 21 39 43 89100 85 59 55 38 59 59 54 54 30 36 33 50 42
VSBY 10 10 10 8 7 8 6 6 6 6 6 7 7 10 10 10 10 10
POP 12HR 0 80 60 20 10
RAIN SHWRS NM O NM SC IS IS IS IS IS IS
TSTMS SC SC SC
MIX HGT <1 <1 6 4 2 <1 <1 <1 <1 1 3 5 5 1 1 <1 <1 2
T WIND DIR NW NW W SW W W W N N N N NE NE E E E E E
T WIND SPD 4 4 10 13 10 2 2 4 5 11 10 6 6 12 11 10 2 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 2 4 78 51 21 1 1 2 3 15 44 28 28 6 5 5 1 16
MAX LVORI 3 3 1 1 2 3 5 6 6 4 1 2 2 3 3 5 7 4
STABILITY G A A C D F F F G A A C C F G G F A
CEILING None None 4100 5300 None 35000 None None None
STA PRES 27.93 27.94 27.91 27.93 27.95 28.03 28.06 28.19 28.23
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 73 44 69 51 76 50 70 42 68
TEMP 69 67 49 48 64 67 55 54 72 69 56 52 68 64 47 46 66 62
DEWPT 46 46 42 41 51 55 53 53 59 57 52 47 43 39 37 37 40 43
RH 44 47 77 77 63 65 93 96 64 66 86 83 40 40 68 71 38 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC B2 B1 SC B1 B2 B2 SC SC SC SC SC B1 B1 B1
POP 12HR 5 20 60 30 70 30 20 30 50
RAIN SHWRS IS NM IS SC NM NM SC IS IS IS IS SC SC SC
TSTMS 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