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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Jun 23 2026
VAZ024-232000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Tue Jun 23 2026
Date Tue 06/23/26 Wed 06/24/26 Thu 06/25/26
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 83 54 85 58 90
TEMP 74 80 82 74 64 59 56 60 75 82 84 77 65 60 58 63 80 87 89 83
DEWPT 68 67 63 59 56 55 53 56 56 54 55 60 57 56 54 58 60 61 62 65
MAX/MIN RH 60 93 36 89 39
RH 82 65 53 59 75 87 90 87 52 38 37 56 75 87 86 84 51 42 41 55
WIND DIR N N NW NW W W W NW N N SW S N N N N S S S S
WIND SPD 1 5 8 5 2 1 2 1 1 0 2 1 0 0 0 0 2 5 5 2
WIND GUST 18 21
CLOUDS OV B1 SC FW CL FW FW FW SC SC SC SC FW FW FW FW FW FW FW FW
CLOUDS(%) 90 63 42 11 3 6 6 9 31 35 32 36 17 20 24 11 14 19 17 18
VSBY 3 6 10 10 10 10 9 9 10 10 10 10 8 10 10 10 10 10 10 10
POP 12HR 90 0 0 0 0
RAIN SHWRS NM SC
TSTMS
MIX HGT 1 3 4 <1 <1 <1 <1 <1 4 5 6 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NE N N N NW NW NW NW NW NW W SE E N N NE S S S S
T WIND SPD 6 11 16 12 9 4 4 3 3 3 2 1 2 2 2 1 9 11 11 9
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 11 37 74 6 4 2 2 4 17 22 16 1 1 1 1 1 42 87 87 4
MAX LVORI 5 3 1 3 4 5 6 5 2 2 2 3 4 5 6 5 1 1 1 3
STABILITY B C B F G G G A A A A G G G G A A A A G
CEILING 200 None None None None None None None None None
STA PRES 28.36 28.40 28.51 28.54 28.58 28.53 28.54 28.56 28.57 28.54
Date Fri 06/26/26Sat 06/27/26Sun 06/28/26Mon 06/29/26
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 65 93 67 91 67 93 67 94
TEMP 67 69 91 82 70 70 88 83 70 71 91 85 70 72 92 87
DEWPT 62 65 67 69 67 68 69 69 67 67 68 69 66 67 68 69
RH 84 87 45 65 90 93 54 63 90 87 47 59 87 84 46 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC FW FW
POP 12HR 5 40 40 40 10 20 10 10
RAIN SHWRS SC SC SC SC SC IS
TSTMS SC SC IS 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