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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 PM EDT Mon Jun 22 2026
VAZ024-230800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
931 PM EDT Mon Jun 22 2026
Date 06/22/26 Tue 06/23/26 Wed 06/24/26 Thu
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 65 86 56 88 61
TEMP 72 69 67 69 78 83 84 76 66 61 58 61 78 85 87 80 67 63 61 66
DEWPT 69 68 67 67 66 63 61 58 56 55 54 55 55 53 53 58 56 56 55 57
MIN/MAX RH 100 45 88 31 80
RH 90 97100 93 67 51 46 54 70 81 86 81 45 33 31 47 68 78 81 73
WIND DIR SW W W W NW N N N NW NW NW NW N SW SW S N N N N
WIND SPD 1 1 1 2 4 5 6 5 2 1 1 1 0 1 2 1 0 0 0 0
WIND GUST 20
CLOUDS B1 B1 B2 B2 B2 B1 SC FW FW FW FW FW CL FW FW CL FW FW SC SC
CLOUDS(%) 62 64 78 83 85 65 35 7 6 6 8 11 5 10 7 1 9 19 27 27
VSBY 7 4 2 3 4 7 10 10 10 9 7 7 7
POP 12HR 50 50 0 0 0
RAIN SHWRS SC IS IS SC IS IS
TSTMS IS
MIX HGT <1 <1 <1 1 3 5 4 1 <1 <1 <1 <1 5 6 7 <1
T WIND DIR SW W W NE N N N N NW NW NW N N N W SE
T WIND SPD 2 2 2 2 3 9 16 14 6 5 4 6 6 2 2 1
DISPERSION VP VP VP PR VP VP VP VP VP VP VP
ADI 1 1 1 3 10 37 76 7 3 3 2 9 41 18 19 1
MAX LVORI 8 10 10 8 3 1 1 2 3 5 6 4 1 2 2 2
STABILITY F F F B C C B F G G G A A A A G
CEILING 100 0 None None None None None None
STA PRES 28.41 28.41 28.42 28.53 28.57 28.59 28.56
Date 06/25Fri 06/26/26Sat 06/27/26Sun 06/28/26Mon 06/29/26
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 92 65 94 66 92 67 95 68 97
TEMP 89 83 69 70 92 84 70 71 89 84 70 72 93 87 71 72 95 89
DEWPT 62 65 64 65 65 66 65 66 67 68 66 67 66 68 66 66 66 68
RH 41 55 84 84 41 55 84 84 48 59 87 84 41 53 84 81 39 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW SC SC SC B1 B1 B1 B1 B1 SC SC SC SC FW SC FW FW
POP 12HR 10 20 50 40 40 20 20 10 5
RAIN SHWRS IS SC SC SC SC IS IS
TSTMS 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