
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 >
Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Jul 27 2026
VAZ046-272000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Mon Jul 27 2026
Date Mon 07/27/26 Tue 07/28/26 Wed 07/29/26
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 88 68 88 67 87
TEMP 80 86 86 79 72 70 69 71 79 85 85 80 74 70 67 70 80 85 86 80
DEWPT 71 70 69 70 69 69 68 70 74 75 74 72 70 68 65 66 67 66 64 64
MAX/MIN RH 56 100 67 94 48
RH 74 59 57 74 90 97 97 97 85 72 70 77 87 93 93 87 65 53 48 58
WIND DIR N NE E E S SW S SW SW SW SW W W W W W NW NW NW NW
WIND SPD 3 2 2 3 3 3 5 6 10 13 12 9 6 5 6 6 9 10 11 8
WIND GUST 20 24 23 20 18
CLOUDS SC SC SC FW SC SC B1 B2 B1 OV B1 SC FW FW FW FW CL FW SC FW
CLOUDS(%) 28 32 41 16 32 44 61 76 62 89 65 45 16 11 12 8 5 22 29 6
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 7 10 10 10 10 10 10 10
POP 12HR 10 5 80 5 0
RAIN SHWRS IS O SC
TSTMS SC SC
MIX HGT 3 5 5 <1 <1 <1 <1 <1 2 4 2 <1 <1 <1 <1 <1 4 6 7 1
T WIND DIR N N SW S S S SW SW W W W SW N NE NW N N NW NW NW
T WIND SPD 8 3 3 3 3 4 2 6 6 6 11 13 8 6 3 8 14 10 9 11
DISPERSION VP VP VP PR PR PR PR PR PR
ADI 34 23 20 2 2 2 2 5 16 18 24 12 4 3 2 10 69 70 43 8
MAX LVORI 3 2 2 3 7 8 8 9 4 3 3 4 6 6 7 5 1 1 1 3
STABILITY A A A G G F E C C D D D F F F B B B C E
CEILING None None None 0 0 0 None None None None
STA PRES 29.15 29.09 29.06 29.03 29.00 28.93 28.94 28.97 29.02 29.01
Date Thu 07/30/26Fri 07/31/26Sat 08/01/26Sun 08/02/26
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 64 86 64 86 66 86 67 81
TEMP 67 68 84 80 67 68 84 79 68 69 84 78 69 69 80 75
DEWPT 62 63 64 64 62 64 64 66 65 66 68 68 68 69 72 71
RH 84 84 51 58 84 87 51 64 90 90 59 71 97100 77 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL FW SC FW FW FW SC SC SC B1 B2 B1 B1 B1 B2
POP 12HR 0 5 5 0 5 30 40 60
RAIN SHWRS SC SC SC 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