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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Jul 26 2026
VAZ012-270800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 PM EDT Sun Jul 26 2026
Date 07/26/26 Mon 07/27/26 Tue 07/28/26 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 61 84 64 82 61
TEMP 78 73 64 63 62 64 74 80 84 77 67 66 66 67 73 77 80 74 67 65 63 62
DEWPT 67 67 64 63 62 64 67 64 64 65 64 63 63 66 70 70 69 66 65 64 63 62
MIN/MAX RH 100 51 97 69 100
RH 69 81100100100100 79 58 51 67 90 90 90 97 90 79 69 76 93 97100100
WIND DIR NW NW NW NW NW NW NW NW NW NW W W W W W W W W NW NW NW NW
WIND SPD 2 2 1 1 1 2 2 2 2 1 1 2 3 5 5 5 5 5 4 3 3 4
WIND GUST 17 16 16 14 13
CLOUDS B1 SC B1 SC B1 B1 B1 SC SC FW SC SC B2 OV OV OV OV B1 B1 SC B1 B1
CLOUDS(%) 61 47 55 33 61 66 55 35 31 20 36 41 71 89 89 94 94 51 51 49 61 58
VSBY 10 10 10 9 4 5 10 10 10 7 7 6 6 6 6 6 6 6
POP 12HR 30 5 70 90 30
RAIN SHWRS IS SC SC O O O O SC SC
TSTMS IS IS IS IS SC NM SC SC
Obvis PF PF PF
MIX HGT 4 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 1 2 3 2 <1
T WIND DIR W NW NW NW NW NW N N NW NW W SW SW W E S W NW
T WIND SPD 9 11 8 5 3 6 10 8 10 5 2 3 3 4 10 23 9 10
DISPERSION VP VP VP VP VP VP VP VP PR VP VP VP
ADI 45 5 4 3 2 8 37 46 58 3 1 2 2 6 24 72 25 7
MAX LVORI 1 4 9 9 10 8 3 1 1 3 6 7 7 7 4 3 3 4
STABILITY B F F G F B B A A G G F F C C C C E
CEILING None None 1100 None None None 4800 700 500 None
STA PRES 27.17 27.16 27.15 27.17 27.16 27.14 27.10 27.04 26.93
Date 07/29Thu 07/30/26Fri 07/31/26Sat 08/01/26Sun 08/02/26
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 79 55 78 55 83 59 80 61 78
TEMP 75 72 60 59 74 70 57 59 78 74 62 63 76 71 63 63 74 70
DEWPT 63 61 59 59 60 60 57 59 60 62 59 61 64 65 63 63 66 66
RH 66 68 96100 62 71100100 54 66 90 93 66 81100100 76 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW SC SC FW FW FW SC B1 B1 B2 B2 B1 B1 B1 B2
POP 12HR 5 5 5 0 5 10 50 50 60
RAIN SHWRS SC SC SC IS SC NM
TSTMS 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