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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Thu Jun 25 2026
NCZ003-252000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
431 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 87 64 90 67 89
TEMP 61 65 78 84 87 82 71 67 65 70 84 88 89 83 73 69 67 72 82 87 89 83
DEWPT 53 56 59 58 61 63 61 60 59 62 65 65 67 68 68 66 65 68 70 68 69 69
MAX/MIN RH 41 84 47 94 52
RH 75 73 52 41 42 53 71 78 81 76 53 47 48 61 84 90 93 87 67 53 52 63
WIND DIR N N S S S SW N N N N S S S SW N N N N W W W W
WIND SPD 0 0 2 4 4 1 0 0 0 0 2 5 5 3 0 0 0 0 4 6 6 3
CLOUDS SC B1 FW SC FW SC FW FW SC SC FW B1 B1 B1 SC SC B1 B1 SC B1 B1 B1
CLOUDS(%) 45 60 21 30 25 29 19 22 36 28 24 62 57 59 43 50 65 65 44 65 61 68
VSBY 10 10 10 10 10 10 10 10 10 10 10 7 7 7 10 10 10 10 10 10 10
POP 12HR 5 0 40 20 40
RAIN SHWRS IS SC IS IS IS IS SC SC IS
TSTMS IS SC IS SC SC IS
MIX HGT <1 <1 4 6 6 <1 <1 <1 <1 <1 4 6 4 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR NW W SW SW SW S S SW W W SW S S SW SW SW W W W W SW SW
T WIND SPD 2 1 11 5 6 11 5 4 2 2 9 12 13 5 4 4 3 6 16 18 14 9
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 1 65 43 51 5 3 2 1 2 52 58 52 3 2 2 2 7 71 76 72 4
MAX LVORI 3 3 1 1 1 2 3 4 5 4 1 1 1 3 5 6 7 5 1 1 1 3
STABILITY F B A A A G G G G A A C C F F F F A A C B F
CEILING None None None None None None None 8400 None 7200
STA PRES 28.19 28.17 28.18 28.21 28.23 28.20 28.17 28.13 28.14 28.08
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 67 90 67 92 67 95 69 95
TEMP 70 72 87 84 70 72 89 86 71 73 92 89 72 75 95 91
DEWPT 67 68 69 70 66 68 69 69 64 66 67 68 64 66 65 67
RH 90 87 55 63 87 87 52 57 79 79 44 50 76 74 37 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 SC FW SC B1 FW FW FW FW FW FW FW FW
POP 12HR 20 40 10 30 5 5 5 10
RAIN SHWRS IS IS 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