Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Jun 23 2026
VAZ046-232000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Tue Jun 23 2026
Date Tue 06/23/26 Wed 06/24/26 Thu 06/25/26
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 79 57 83 59 88
TEMP 75 76 77 74 65 62 58 63 76 81 82 77 65 61 59 65 79 86 88 83
DEWPT 70 69 66 64 61 57 55 58 57 56 56 60 57 56 56 59 62 62 62 64
MAX/MIN RH 77 89 40 88 41
RH 84 79 69 71 87 84 90 84 52 42 41 56 75 84 90 81 56 45 42 53
WIND DIR NW N N N NW NW NW N N NW W SE SE W SW SW S S S S
WIND SPD 4 8 9 4 3 4 4 3 3 2 2 2 2 1 1 1 5 8 8 4
WIND GUST 14
CLOUDS OV B2 B2 FW FW CL CL CL FW SC SC SC FW FW FW FW FW FW FW FW
CLOUDS(%) 98 82 87 25 10 3 5 4 22 37 27 33 12 20 20 9 8 18 14 13
VSBY 3 6 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 5 0 0 0
RAIN SHWRS O NM O
TSTMS NM SC SC
MIX HGT 1 2 3 <1 <1 <1 <1 <1 4 6 6 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR E NE N N NW NW NW N N NW NW E E E NE S S S S S
T WIND SPD 1 9 23 19 4 6 4 11 5 3 2 1 2 1 1 4 8 9 10 12
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 2 24 68 9 2 3 2 11 32 24 16 1 1 1 1 5 39 67 77 6
MAX LVORI 7 4 3 4 6 6 6 4 1 2 2 3 3 6 6 5 1 1 1 2
STABILITY C C C F G F F A A A A G G G G A A B B F
CEILING 300 1200 None None None None None None None None
STA PRES 29.13 29.16 29.28 29.32 29.36 29.31 29.33 29.35 29.36 29.32
Date Fri 06/26/26Sat 06/27/26Sun 06/28/26Mon 06/29/26
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 67 93 69 91 70 91 69 93
TEMP 70 71 92 85 72 72 87 84 72 73 89 85 72 73 91 88
DEWPT 61 64 66 68 68 68 69 69 67 68 68 69 67 68 67 68
RH 73 79 43 57 87 87 55 61 84 84 50 59 84 84 45 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B1 B1 SC B1 SC SC FW SC FW SC FW FW
POP 12HR 0 20 40 40 20 20 10 10
RAIN SHWRS IS SC IS SC SC IS IS
TSTMS IS 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