Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Jun 21 2026
VAZ020-212000-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
801 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 84 61 84 64 83
TEMP 75 80 83 76 69 66 63 66 76 80 83 77 71 69 67 69 74 80 82 74
DEWPT 55 53 52 54 54 53 54 57 63 67 68 66 66 65 64 63 60 58 55 53
MAX/MIN RH 34 81 60 94 40
RH 50 39 34 46 59 63 72 73 64 65 61 69 84 87 90 81 62 47 40 48
WIND DIR W W W NW NE NE W S SW SW SW SW W W NW NW NW NW NW NW
WIND SPD 5 6 5 2 3 2 2 3 6 11 10 4 4 2 3 3 3 2 3 4
WIND GUST 14
CLOUDS FW SC FW SC B1 SC B1 SC SC B2 B2 OV B2 B2 B1 B1 B1 SC SC FW
CLOUDS(%) 25 27 22 32 51 46 52 42 44 75 78 97 86 70 55 51 51 46 28 23
VSBY 10 10 10 10 10 10 10 10 8 6 6 10 7 10 10 10 10 10 10 10
POP 12HR 0 0 90 100 30
RAIN SHWRS NM NM O NM SC SC
TSTMS SC NM
MIX HGT 5 6 7 <1 <1 <1 <1 <1 4 4 3 <1 <1 <1 <1 2 4 4 4 1
T WIND DIR W W W W NE NE NE SE SW SW SW W W E NW NW NW NW NW N
T WIND SPD 16 13 13 6 3 3 3 3 18 25 19 5 3 1 3 12 11 12 10 13
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 101 98110 3 2 2 2 4 81 73 61 4 2 1 2 27 51 71 52 6
MAX LVORI 1 1 1 2 3 3 3 3 1 1 1 3 5 6 7 3 1 1 1 2
STABILITY A B A G F F F A B D C E E F F B B A A F
CEILING None None None None None 4300 2900 None None None
STA PRES 27.82 27.80 27.83 27.81 27.79 27.76 27.73 27.72 27.82 27.83
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 59 85 63 85 63 86 63 87
TEMP 62 63 81 77 66 66 81 76 67 67 83 77 67 67 83 78
DEWPT 53 54 52 54 54 57 61 61 61 63 61 60 60 61 60 60
RH 72 72 37 45 65 73 51 60 81 87 47 56 78 81 46 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC SC B1 B1 B1 SC B1 SC SC SC B1
POP 12HR 0 0 5 50 30 30 20 30
RAIN SHWRS IS SC SC IS SC IS 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