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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sat Apr 25 2026
NCZ003-260800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
731 PM EDT Sat Apr 25 2026
Date 04/25/26 Sun 04/26/26 Mon 04/27/26 Tue
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 79 44 73 46
TEMP 62 60 57 56 55 68 75 75 66 56 49 45 47 58 69 72 66 56 50 47 49
DEWPT 60 58 55 54 54 54 53 53 51 48 45 44 43 46 47 46 46 43 43 42 44
MIN/MAX RH 96 43 93 40 83
RH 93 93 93 93 96 61 46 46 58 74 86 96 86 64 45 39 48 62 77 83 83
WIND DIR N NW NW NW N NE E E E E E E E E SE SE SE SE SE SE S
WIND SPD 0 1 2 3 3 4 1 4 3 2 1 1 1 2 4 4 2 1 1 1 1
CLOUDS OV B1 B1 SC SC FW FW FW FW SC SC B1 B1 SC FW FW FW FW SC B1 B2
CLOUDS(%) 98 67 59 47 31 20 16 18 15 28 42 58 53 27 12 19 20 19 37 56 85
VSBY 8 10 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7
POP 12HR 40 10 10 5 20
RAIN SHWRS SC IS IS O
MIX HGT <1 <1 <1 <1 1 3 5 5 1 1 1 <1 2 3 4 4 <1
T WIND DIR W NW NW NW N N N NE E E E NE E SE SE SE SE
T WIND SPD 6 4 5 8 13 12 8 3 13 12 9 5 4 3 5 8 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 3 4 18 52 49 20 6 6 4 3 11 14 28 42 4
MAX LVORI 4 6 6 6 5 1 1 2 3 3 5 6 5 2 2 1 2
STABILITY F F G G A A A A F G F F B A A A G
CEILING 4400 None None None None None None None None
STA PRES 27.95 27.97 28.03 28.07 28.20 28.26 28.29 28.25
Date 04/28Wed 04/29/26Thu 04/30/26Fri 05/01/26Sat 05/02/26
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 69 53 74 48 68 41 69 43 64
TEMP 64 67 55 55 71 69 56 50 66 62 45 46 66 62 49 45 61 58
DEWPT 54 56 54 55 62 55 48 42 38 36 35 36 40 40 39 39 39 38
RH 70 68 96100 73 61 74 74 36 38 68 68 38 44 68 79 44 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 SC B1 B2 B2 SC SC SC SC FW SC B1 B1 B1 B1 B1 SC
POP 12HR 80 50 80 30 20 20 40 50 30
RAIN SHWRS O SC IS SC O NM SC IS IS IS IS IS SC SC SC SC SC IS
TSTMS IS IS 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