
Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >
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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Mon Aug 3 2026
VAZ012-032000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
301 AM EDT Mon Aug 3 2026
Date Mon 08/03/26 Tue 08/04/26 Wed 08/05/26
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 80 61 79 63 82
TEMP 64 64 72 76 79 72 65 63 62 64 71 75 78 72 66 65 64 65 73 77 80 74
DEWPT 63 64 68 68 68 66 64 63 62 64 68 68 68 67 65 65 64 65 69 69 70 68
MAX/MIN RH 70 100 70 100 70
RH 97100 87 76 69 81 97100100100 90 79 71 84 97100100100 87 76 72 82
WIND DIR NW NW NW N N N N NE NE E E E E E E SE SE SE S S S S
WIND SPD 1 1 1 1 2 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 1
CLOUDS B1 SC B1 B1 B1 SC SC SC B1 B1 B2 B1 B1 B1 B2 B1 B1 B1 B1 B2 B2 B1
CLOUDS(%) 63 43 54 67 64 34 34 50 69 64 79 67 61 69 72 63 65 65 60 87 87 51
VSBY 3 3 10 10 10 10 10 8 7 8 10 10 6 7 7 10 10 7
POP 12HR 50 10 50 30 80
RAIN SHWRS IS SC SC IS SC SC SC SC IS IS IS IS O O
TSTMS IS SC SC IS SC SC IS IS SC SC
MIX HGT <1 <1 3 3 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR W NW N NW N N N N E E E E SE SE SE SE SE SE S S SE S
T WIND SPD 3 5 5 5 9 9 5 4 6 11 13 9 9 8 6 4 2 4 5 8 11 9
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 6 20 24 30 4 3 2 3 15 34 32 34 4 3 2 1 6 18 32 37 4
MAX LVORI 10 9 4 3 3 4 8 9 9 5 4 3 3 5 8 9 10 8 4 3 3 5
STABILITY F A B B B G G F F B B B B F F F F B B B B F
CEILING None 2000 None 700 600 1700 1300 900 700 1800
STA PRES 27.15 27.16 27.23 27.26 27.33 27.33 27.36 27.36 27.39 27.36
Date Thu 08/06/26Fri 08/07/26Sat 08/08/26Sun 08/09/26
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 63 83 63 84 63 84 63 83
TEMP 65 65 79 74 65 65 80 74 66 66 80 74 66 65 79 74
DEWPT 65 65 68 68 65 65 68 68 64 66 68 68 65 65 68 68
RH 100100 69 82100100 67 82 93100 67 82 97100 69 82
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC B1 B2 SC SC SC B2 SC SC SC B2 SC SC SC B2
POP 12HR 10 70 20 60 20 70 20 60
RAIN SHWRS SC NM IS IS NM IS IS NM IS IS NM
TSTMS IS SC IS SC IS IS SC IS 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