Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Sun Aug 30 2026
VAZ018-310800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 AM EDT Sun Aug 30 2026
Date 08/29/26 Sun 08/30/26 Mon 08/31/26 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 65 86 67 91 69
TEMP 66 67 78 85 85 74 72 69 68 69 85 90 90 77 74 71 69 71
DEWPT 64 65 69 68 68 66 65 65 64 65 68 67 66 65 64 63 63 65
MIN/MAX RH 98 55 88 45 84
RH 93 93 74 57 57 76 79 87 87 87 57 47 45 67 71 76 81 81
WIND DIR N N S S S W W W W NW NW NW W NW W W W W
WIND SPD 0 0 2 3 2 1 1 2 2 2 2 2 2 1 1 1 2 3
CLOUDS B1 SC SC FW SC FW FW FW FW FW FW SC SC B1 SC FW FW FW
CLOUDS(%) 58 50 38 22 34 23 20 11 11 14 15 38 28 58 29 17 6 10
VSBY 7 1 10 10 10 10 9 10 10 10 10 10 10 10
POP 12HR 20 10 0 0 0
RAIN SHWRS
Obvis PF PFPF+
MIX HGT <1 <1 2 5 4 <1 <1 <1 <1 <1 5 6 6 <1
T WIND DIR E SE SW W W S SW SW W W NW NW NW NW
T WIND SPD 1 2 6 5 4 2 2 4 5 5 17 12 11 10
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 1 2 22 38 25 1 1 2 3 6100 99 84 5
MAX LVORI 8 6 3 1 2 3 4 5 6 5 1 1 1 3
STABILITY F B A A A G G G G A A A A G
CEILING None None None None None None None None
STA PRES 28.0 28.00 27.93 27.93 27.91 27.94 27.90
Date 09/01Wed 09/02/26Thu 09/03/26Fri 09/04/26Sat 09/05/26
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 91 69 93 71 93 70 90 67 86
TEMP 91 77 72 72 93 82 74 73 91 80 73 72 87 78 70 69 84 75
DEWPT 68 66 65 66 67 66 66 66 69 68 67 67 68 66 66 65 66 63
RH 47 69 79 81 43 58 76 79 49 67 81 84 53 67 87 87 55 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW B1 SC SC FW B1 SC SC B1 B1
POP 12HR 0 0 0 0 40 20 40 10 30
RAIN SHWRS SC IS SC SC
TSTMS SC IS SC 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