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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EDT Thu Jun 25 2026
VAZ046-252000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
901 AM EDT Thu Jun 25 2026
Date Thu 06/25/26 Fri 06/26/26 Sat 06/27/26
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 67 94 69 90
TEMP 79 85 87 84 73 70 68 71 87 93 93 85 75 71 70 72 84 89 87 82
DEWPT 58 53 54 61 61 61 60 63 65 64 65 67 68 68 68 69 71 70 70 71
MAX/MIN RH 32 79 38 94 52
RH 49 33 32 46 66 73 76 76 48 38 40 55 79 90 93 90 65 54 57 69
WIND DIR SW SW S S S SW SW SW SW SW S S S S SW SW SW W W W
WIND SPD 5 8 8 5 5 5 5 5 5 8 8 5 3 3 3 5 6 9 6 4
CLOUDS SC FW FW FW FW SC SC SC FW B1 SC B2 B2 B1 B1 B2 B1 B2 B2 B1
CLOUDS(%) 39 8 7 11 25 38 49 38 23 59 33 74 74 56 65 71 63 74 74 57
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 10 10 10 10 10 10 10 10
POP 12HR 0 5 40 60 60
RAIN SHWRS NM NM IS IS IS IS NM NM SC
TSTMS SC IS SC SC SC
MIX HGT 4 8 7 <1 <1 <1 <1 <1 4 8 6 <1 <1 <1 <1 <1 2 5 2 <1
T WIND DIR SW SW SW S S S S SW W SW S SW SW S SW SW SW W SW SW
T WIND SPD 11 10 10 14 4 5 5 13 11 10 14 6 14 3 9 10 14 19 19 10
DISPERSION PR PR PR PR PR VP VP VP VP
ADI 63 82 80 7 2 3 4 13 63 51103 5 7 2 4 11 38 80 40 7
MAX LVORI 1 1 1 2 3 3 4 3 1 1 1 3 4 7 6 5 3 1 1 3
STABILITY A B B F F F E A A C B E F F F B C C C E
CEILING None None None None None 5300 13300 8300 7100
STA PRES 29.31 29.33 29.36 29.37 29.32 29.31 29.28 29.25 29.18
Date Sun 06/28/26Mon 06/29/26Tue 06/30/26Wed 07/01/26
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 68 89 68 92 68 95 71 99
TEMP 71 72 87 84 70 71 89 86 70 72 93 89 73 76 99 93
DEWPT 69 70 70 70 68 68 67 67 64 65 66 66 64 66 65 66
RH 93 93 57 63 93 90 48 53 81 79 41 47 73 71 33 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW FW SC
POP 12HR 40 40 20 5 0 0 5 10
RAIN SHWRS SC IS SC IS
TSTMS SC 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