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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EDT Mon Jun 22 2026
VAZ046-222000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1101 AM EDT Mon Jun 22 2026
Date Mon 06/22/26 Tue 06/23/26 Wed 06/24/26
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 92 68 85 60 87
TEMP 91 86 80 73 71 69 71 79 83 84 79 69 63 60 65 78 84 86 81
DEWPT 67 70 70 70 69 67 67 66 64 62 61 58 55 54 56 55 55 54 57
MAX/MIN RH 45 95 46 80 33
RH 45 59 72 90 93 93 87 64 53 48 54 68 75 81 73 45 37 34 44
WIND DIR SW SW S SW SW W W NW NW N N N N N N N W SW SE
WIND SPD 12 9 5 5 5 5 6 8 8 6 3 4 4 3 2 2 3 3 2
WIND GUST 23
CLOUDS B1 B2 B1 B1 SC B1 SC SC B1 SC SC FW CL CL CL CL FW CL FW
CLOUDS(%) 69 70 63 52 43 56 47 47 68 48 41 20 4 3 3 2 11 4 7
VSBY 5 4 6 7 10 10 7 10 10 10 10 10 10 10 10
POP 12HR 60 40 20 0 0
RAIN SHWRS SC SC SC SC IS IS
TSTMS SC SC SC SC
MIX HGT 7 3 <1 <1 <1 <1 1 4 6 4 <1 <1 <1 <1 1 5 7 7 <1
T WIND DIR SW SW SW W W W W W W N N N NW NW N N N W E
T WIND SPD 25 24 12 4 4 11 9 12 10 20 21 3 5 5 11 6 3 2 1
DISPERSION PR PR PR PR VP VP VP VP VP
ADI 86 81 8 3 3 8 15 65 46109 10 2 3 3 18 45 28 19 1
MAX LVORI 1 1 3 6 6 6 4 1 1 1 2 3 4 5 3 1 2 2 2
STABILITY D C E E E E B B C B F F F G A A A A G
CEILING 4200 None None None None None None None None
STA PRES 29.13 29.17 29.18 29.20 29.24 29.33 29.36 29.37 29.34
Date Thu 06/25/26Fri 06/26/26Sat 06/27/26Sun 06/28/26
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 63 90 68 91 67 90 68 90
TEMP 66 68 88 83 71 72 88 84 71 71 87 83 71 71 88 84
DEWPT 56 61 64 65 65 67 66 67 65 65 66 67 65 65 66 67
RH 70 78 45 55 81 84 48 57 81 81 50 59 81 81 48 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW SC B1 SC SC B1 B1 SC SC B1 SC SC SC SC
POP 12HR 0 20 30 40 30 30 20 20
RAIN SHWRS IS SC IS IS SC SC IS IS SC IS IS
TSTMS IS SC IS SC SC 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