Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 AM EDT Sun Aug 23 2026
VAZ024-240800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
1201 AM EDT Sun Aug 23 2026
Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue
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 62 84 57 84 53
TEMP 65 63 64 76 83 81 71 63 60 57 60 76 83 81 70 61 57 54 56
DEWPT 65 63 63 62 57 54 54 54 54 54 55 57 54 53 52 52 51 50 52
MIN/MAX RH 100 38 87 35 92
RH 100100 97 62 41 39 55 72 81 90 84 52 37 38 53 72 80 86 86
WIND DIR W W W NW NW W W W N W W W W W NW NW NW NW NW
WIND SPD 1 2 3 5 6 6 3 1 0 1 1 4 5 5 3 2 1 1 1
WIND GUST 13 17 17 17 16 16 13
CLOUDS B1 CL CL CL CL FW FW CL FW FW CL CL CL FW FW FW FW FW FW
CLOUDS(%) 52 5 3 5 5 10 6 5 6 9 3 3 5 7 25 13 9 7 13
VSBY 9 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 0 0 0 0
RAIN SHWRS
TSTMS
MIX HGT <1 <1 <1 4 6 5 <1 <1 <1 <1 <1 5 6 6 <1 <1 <1 <1 <1
T WIND DIR SW W W NW NW W W W W NW NW W W W NW N NW NW NW
T WIND SPD 3 4 9 19 14 13 9 3 2 3 2 16 11 10 4 3 3 3 2
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 2 9105100 86 4 2 1 2 2 93 85 78 2 2 2 2 2
MAX LVORI 10 9 8 1 1 1 3 3 5 6 5 1 1 1 2 3 5 6 6
STABILITY F G A A B B G G G G A A A A G G G G A
CEILING None None None None None None None None None
STA PRES 28.40 28.46 28.44 28.49 28.50 28.53 28.51 28.57 28.58
Date 08/25Wed 08/26/26Thu 08/27/26Fri 08/28/26Sat 08/29/26
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 86 58 88 64 87 64 90 64 89
TEMP 86 73 61 62 88 76 67 67 86 74 67 67 89 77 67 67 88 76
DEWPT 54 56 56 56 64 65 65 66 70 69 67 67 68 67 66 65 67 66
RH 34 55 84 81 45 69 93 97 59 84100100 50 71 97 93 50 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW SC SC SC B1 B1 B2 SC SC SC SC SC SC SC SC
POP 12HR 0 0 10 30 60 20 20 20 20
RAIN SHWRS SC SC NM IS IS IS IS
TSTMS IS IS SC IS 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