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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Mon Jun 22 2026
VAZ024-230800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
131 AM EDT Mon Jun 22 2026
Date 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed
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 64 93 65 87 59
TEMP 68 65 70 86 91 86 78 71 69 67 69 79 84 86 79 67 62 59 64
DEWPT 58 57 60 66 69 72 72 70 67 65 66 66 64 63 62 59 58 56 58
MIN/MAX RH 74 49 99 47 90
RH 70 75 71 51 49 63 82 97 93 93 90 64 51 46 56 75 87 90 81
WIND DIR N N N SW SW SW W W W W NW NW NW NW NW N NW NW NW
WIND SPD 0 0 0 6 8 5 2 1 1 2 3 5 5 5 4 2 1 1 1
WIND GUST 18 18 17
CLOUDS SC B1 SC B1 B1 OV B1 B1 SC FW FW SC B1 B1 SC SC SC SC FW
CLOUDS(%) 42 55 42 54 67 89 58 61 44 22 16 39 52 52 26 27 29 30 12
VSBY 10 10 10 10 10 10 7 6 9 9 9 9 9 10 10 10 10 8
POP 12HR 5 80 40 30 5
RAIN SHWRS SC O SC SC SC SC
TSTMS SC NM SC SC SC
MIX HGT <1 <1 <1 4 6 2 <1 <1 <1 <1 2 4 6 4 <1
T WIND DIR E E S SW SW W SW W W NW N N N N N
T WIND SPD 2 2 3 21 21 11 12 4 10 11 18 13 12 12 12
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 1 4 86100 31 6 2 5 5 42 68 55 70 6
MAX LVORI 3 3 3 1 1 1 4 6 6 7 4 1 1 1 3
STABILITY F F A C C C F F F G A A C A F
CEILING None None 4100 None None None None None
STA PRES 28.45 28.42 28.38 28.40 28.45 28.53 28.55
Date 06/24Thu 06/25/26Fri 06/26/26Sat 06/27/26Sun 06/28/26
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 88 61 89 64 91 64 90 66 93
TEMP 86 80 64 66 87 81 69 69 88 82 68 69 88 82 69 71 91 86
DEWPT 56 60 57 60 64 66 64 65 66 67 63 64 64 66 64 64 65 67
RH 36 51 78 81 46 60 84 87 48 61 84 84 45 58 84 79 42 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW SC B1 B1 SC SC B1 SC SC SC B1 SC SC SC B1
POP 12HR 0 0 40 30 50 20 30 20 30
RAIN SHWRS IS SC SC IS IS SC IS IS SC IS IS SC
TSTMS SC IS SC SC 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