Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Jun 21 2026
VAZ020-220800-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
231 PM EDT Sun Jun 21 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 86 65 82 58
TEMP 84 77 71 68 65 69 81 81 78 74 72 70 67 68 74 78 80 73 66 62 59 63
DEWPT 54 54 54 53 53 56 63 68 70 66 66 65 64 64 62 60 58 54 54 54 53 54
MIN/MAX RH 68 54 92 47 82
RH 36 45 55 59 65 63 54 65 76 76 81 84 90 87 66 54 47 51 65 75 80 72
WIND DIR W NW NE N SW S SW SW SW SW W W NW NW NW NW NW NW NW NW NW NW
WIND SPD 2 1 1 2 1 1 4 3 2 2 2 2 2 3 3 3 3 4 2 2 2 1
WIND GUST 13
CLOUDS SC SC SC SC B1 B1 SC B2 B2 B2 B1 SC FW FW SC SC SC FW FW FW FW FW
CLOUDS(%) 30 47 36 48 56 56 47 76 81 72 68 35 17 18 49 34 28 12 19 21 16 8
VSBY 10 10 10 10 10 10 10 10 10 8 3 3 3 9 10 10 10 10
POP 12HR 5 80 50 20 0
RAIN SHWRS NM NM SC SC IS IS
TSTMS SC SC IS IS IS
MIX HGT 7 <1 <1 <1 <1 <1 4 5 3 <1 <1 <1 <1 2 3 5 5 2
T WIND DIR W NE E E E SE SW SW W SW W W NW N N N N N
T WIND SPD 11 1 2 3 3 3 12 24 17 12 8 9 14 14 14 14 13 13
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 94 1 1 2 2 4 62128 63 6 4 4 7 32 62 89 81 6
MAX LVORI 1 2 3 3 3 3 1 1 3 4 5 5 5 4 1 1 1 2
STABILITY A F G F F B A B B F F G G A A A A F
CEILING None None None 3800 4400 None None None None None
STA PRES 27.80 27.83 27.79 27.76 27.73 27.76 27.79 27.88 27.91
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 85 61 85 64 86 64 84 66 88
TEMP 82 76 65 66 81 77 69 68 82 77 68 68 81 77 69 70 84 80
DEWPT 50 53 54 57 62 61 61 63 63 61 60 62 61 60 61 62 62 62
RH 33 45 68 73 53 58 76 84 53 58 76 81 51 56 76 76 48 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC SC B1 B1 SC B1 B1 SC B1 SC B1 SC SC SC B1
POP 12HR 0 0 50 30 40 20 30 20 30
RAIN SHWRS IS SC SC IS SC SC IS IS IS SC IS IS SC
TSTMS SC IS 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