
Thunderstorms are expected across portions of the area late tonight into Tuesday, and then Tuesday afternoon into Tuesday evening. Visit this link for details on what is expected. Read More >
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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Mon Jul 27 2026
VAZ018-280800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 PM EDT Mon Jul 27 2026
Date 07/27/26 Tue 07/28/26 Wed 07/29/26 Thu
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 67 85 65 80 61
TEMP 87 78 71 68 69 70 77 82 82 74 70 68 66 66 75 80 77 70 66 64 62 63
DEWPT 64 66 63 63 64 66 72 72 71 68 65 64 63 62 64 63 62 61 59 59 57 58
MIN/MAX RH 91 68 89 56 86
RH 46 67 76 84 84 87 85 72 69 82 84 87 90 87 69 56 60 73 78 84 84 84
WIND DIR NW NW W W W W W W W NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 2 2 1 2 4 6 8 9 10 9 8 6 8 10 11 10 10 10 8 8 9 9
WIND GUST 16 23 25 27 28 27 27 25 28 32 29 29 28 28 26 27 29 28
CLOUDS FW SC B1 SC B1 OV B2 B2 B2 SC SC SC FW SC FW FW FW FW FW FW FW FW
CLOUDS(%) 21 41 56 31 51 90 85 75 70 36 28 28 22 49 19 19 20 16 18 21 25 22
VSBY 10 10 10 10 10 5 5 6 7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 60 10 0 0
RAIN SHWRS SC SC NM SC
TSTMS IS SC SC
MIX HGT 5 <1 <1 <1 <1 <1 2 3 3 1 <1 <1 <1 2 4 5 5 2
T WIND DIR W SW W W NW SW W W W NW NW NW NW NW NW NW NW NW
T WIND SPD 4 3 2 3 6 13 18 21 18 14 9 6 11 14 21 20 20 18
DISPERSION VP VP VP VP PR PR PR PR FR PR PR PR
ADI 31 2 1 2 5 15 49 70 58 10 6 3 8 33 76116129 12
MAX LVORI 1 3 4 5 5 4 4 3 3 4 4 6 5 4 1 1 1 3
STABILITY A F F G E C C C C E E F E B C B B E
CEILING None 5600 900 2000 None None None None None
STA PRES 27.63 27.58 27.49 27.44 27.49 27.53 27.58 27.61
Date 07/30Fri 07/31/26Sat 08/01/26Sun 08/02/26Mon 08/03/26
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 81 61 84 63 84 66 84 66 82
TEMP 80 73 64 63 82 75 66 66 83 74 69 68 82 75 69 67 80 73
DEWPT 61 60 58 59 61 62 60 61 64 64 63 65 68 68 66 66 69 68
RH 52 64 81 87 49 64 81 84 53 71 81 90 63 79 90 97 69 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW SC SC SC SC B2 B2 B2 B1 B2 B2 B1 B1 B1 B1
POP 12HR 0 0 5 5 20 30 60 40 50
RAIN SHWRS IS SC SC SC NM SC IS SC
TSTMS IS IS 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