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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sun Jul 26 2026
NCZ003-270800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
401 PM EDT Sun Jul 26 2026
Date 07/26/26 Mon 07/27/26 Tue 07/28/26 Wed
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 65 87 67 87 66
TEMP 80 77 69 67 66 68 79 84 87 81 72 70 69 71 79 83 85 80 73 70 67 69
DEWPT 73 74 69 67 66 68 71 69 68 71 68 66 65 68 74 74 73 72 69 68 66 67
MIN/MAX RH 100 54 94 66 96
RH 79 90100100100100 77 61 53 72 87 87 87 90 85 74 67 77 87 93 97 93
WIND DIR SW N SW W NW NW N N NW N N N W SW W W W W NW NW NW NW
WIND SPD 2 0 1 1 2 3 5 3 2 0 0 0 1 2 6 9 9 5 5 4 5 8
WIND GUST 18 17 18 19 21
CLOUDS B1 B1 B1 SC SC SC SC SC SC FW SC SC B1 B2 B1 B2 B2 SC SC SC SC FW
CLOUDS(%) 53 52 59 33 31 42 35 37 31 25 41 39 53 70 68 82 82 27 29 30 29 22
VSBY 10 10 10 10 7 9 10 10 10 10 10 7 7 7 7 6 6 7
POP 12HR 10 5 40 70 10
RAIN SHWRS SC SC NM NM
TSTMS IS NM SC
Obvis PF PF
MIX HGT 4 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR W SW W NW NW N N N NW N N NW NW NW N S SW NW
T WIND SPD 4 8 3 4 3 8 12 8 9 9 3 3 3 2 4 13 12 3
DISPERSION VP VP VP VP VP VP VP VP PR PR VP PR
ADI 21 4 2 2 2 8 55 51 59 4 2 2 2 2 10 48 36 2
MAX LVORI 3 6 10 9 10 8 3 1 1 3 6 7 7 6 4 3 3 4
STABILITY A F F G G A A A A G F G F B B C C F
CEILING None None None None None 11800 10500 4300 None
STA PRES 27.99 27.99 28.00 27.98 27.98 27.94 27.90 27.77
Date 07/29Thu 07/30/26Fri 07/31/26Sat 08/01/26Sun 08/02/26
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 84 62 81 61 83 64 80 65 77
TEMP 82 78 66 66 79 75 64 66 80 76 67 68 78 74 68 68 75 73
DEWPT 67 67 62 63 64 66 61 63 66 69 64 66 70 71 67 68 72 72
RH 61 69 87 90 60 74 90 90 62 79 90 93 76 90 97100 90 97
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW FW FW FW FW SC B1 B2 B1 B2 B2 B2 B1 B2
POP 12HR 0 0 5 0 10 20 60 50 70
RAIN SHWRS IS SC NM 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