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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Sun Jun 21 2026
NCZ003-212000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
331 AM EDT Sun Jun 21 2026
Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26
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 87 64 88 65 85
TEMP 63 67 77 83 86 79 72 69 67 70 79 84 87 80 73 70 68 70 77 82 84 79
DEWPT 56 59 60 59 59 62 62 61 62 64 68 70 71 71 70 67 65 65 65 63 61 60
MAX/MIN RH 40 93 58 97 46
RH 78 75 56 44 40 56 71 76 84 81 69 63 59 74 90 90 90 84 67 53 46 52
WIND DIR N N N S SW S SW SW S N S SW W W W W NW NW NW NW NW N
WIND SPD 0 0 0 4 3 1 1 1 1 0 5 9 8 3 1 1 1 4 6 6 8 8
WIND GUST 20
CLOUDS CL FW FW FW SC SC SC FW FW FW FW B2 B2 B2 B1 SC SC SC SC SC SC FW
CLOUDS(%) 4 17 9 25 43 46 31 23 19 19 19 76 86 74 63 43 35 35 41 35 28 18
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 6 10 10 10 10 10 10 10 9 10
POP 12HR 0 0 80 60 20
RAIN SHWRS NM O NM SC IS IS
TSTMS NM NM SC IS IS IS
MIX HGT <1 <1 5 7 7 <1 <1 <1 <1 <1 4 5 3 <1 <1 <1 <1 2 4 5 5 2
T WIND DIR NW NW NW SW SW SW W W SW SW SW SW SW SW SW SW W NW NW NW NW NW
T WIND SPD 4 4 3 4 9 6 2 2 1 5 17 16 16 9 5 10 9 19 19 14 12 13
DISPERSION VP VP VP VP VP VP VP VP VP PR
ADI 2 4 20 37 73 3 1 1 1 6 92 65 47 4 3 5 4 40 84 90 75 9
MAX LVORI 4 4 2 1 1 3 3 4 6 4 1 1 1 3 6 6 6 4 1 1 1 2
STABILITY G A A A A F G G G A A C C F F F G A B B B E
CEILING None None None None None 3600 3300 None None None
STA PRES 28.11 28.07 28.09 28.09 28.09 28.05 28.04 28.04 28.11 28.11
Date Wed 06/24/26Thu 06/25/26Fri 06/26/26Sat 06/27/26
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 60 86 63 87 63 88 64 89
TEMP 63 65 83 81 66 68 84 80 67 69 85 81 68 70 86 83
DEWPT 56 57 57 60 58 61 65 67 63 65 65 66 62 64 64 66
RH 78 75 41 49 75 78 53 65 87 87 51 60 81 81 48 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC B1 SC SC SC B1 SC SC SC B1
POP 12HR 5 5 10 50 20 40 10 30
RAIN SHWRS IS SC IS IS SC IS SC
TSTMS IS SC IS SC 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