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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Fri Apr 24 2026
NCZ003-242000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
431 AM EDT Fri Apr 24 2026
Date Fri 04/24/26 Sat 04/25/26 Sun 04/26/26
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 82 54 77 52 75
TEMP 54 58 76 79 79 73 63 59 56 58 75 74 70 65 61 58 55 54 66 72 74 67
DEWPT 43 46 46 46 47 48 48 49 49 50 55 57 60 59 57 55 53 53 54 53 52 51
MAX/MIN RH 30 79 50 100 47
RH 66 64 34 31 32 41 58 69 77 75 50 55 71 81 87 90 93 96 65 51 46 56
WIND DIR NW NW NW W SW W NW NW W SW SW SW NW NW NW NW NW N N NE E E
WIND SPD 2 2 2 3 3 1 1 1 1 1 2 5 4 2 1 1 2 2 3 5 5 3
CLOUDS FW FW FW B1 B1 FW FW FW FW B1 B1 OV OV B2 B2 B1 B1 SC SC SC SC SC
CLOUDS(%) 19 25 22 54 52 20 8 9 19 54 54 91 93 77 75 57 57 48 48 38 38 30
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 5 90 60 20
RAIN SHWRS SC SC O O NM NM SC SC IS IS IS IS
TSTMS SC IS
MIX HGT <1 <1 8 8 6 <1 <1 <1 <1 <1 5 6 2 <1 <1 <1 <1 1 4 4 4 <1
T WIND DIR NW NW NW SW SW SW NW NW NW NW W SW NW NW NW NW N N N NE E NE
T WIND SPD 6 6 8 6 11 4 4 4 4 3 11 10 14 11 3 6 5 17 12 5 11 13
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 7 76 59 72 2 2 2 2 3 72 45 31 5 2 3 3 26 61 31 58 6
MAX LVORI 3 3 1 1 1 2 3 3 4 4 1 1 3 4 6 6 6 4 1 1 1 3
STABILITY G A A B B G G G G A B C C F F F F A A A A G
CEILING None None None None 6500 4500 4000 None None None
STA PRES 28.02 27.95 27.95 27.93 27.93 27.93 27.93 27.95 28.02 28.08
Date Mon 04/27/26Tue 04/28/26Wed 04/29/26Thu 04/30/26
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 45 74 47 74 53 77 51 77
TEMP 50 46 70 67 51 50 67 70 59 57 74 71 56 53 74 70
DEWPT 46 43 47 48 46 46 56 56 54 53 54 53 49 47 48 49
RH 86 89 44 50 83 86 68 61 83 86 50 53 77 80 40 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW SC B1 B2 B1 SC B1 B1 B1 SC B1 B1 B1
POP 12HR 10 5 40 60 30 50 30 40
RAIN SHWRS SC NM SC IS SC SC SC IS SC SC SC
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