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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Mon Jun 22 2026
NCZ003-222000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
331 AM EDT Mon Jun 22 2026
Date Mon 06/22/26 Tue 06/23/26 Wed 06/24/26
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 89 66 83 59 85
TEMP 67 70 82 88 84 78 72 70 68 69 76 80 82 77 67 62 60 64 75 81 85 80
DEWPT 63 66 69 68 70 70 69 68 65 65 64 62 60 58 56 55 53 55 55 55 54 57
MAX/MIN RH 51 93 46 80 35
RH 87 87 65 52 63 76 90 93 90 87 66 54 47 52 68 78 78 73 50 41 35 45
WIND DIR S SW SW SW SW SW W SW W NW NW NW NW NW N N N N E SW SW S
WIND SPD 4 5 8 9 6 5 5 5 5 8 8 9 9 9 8 6 5 4 3 2 2 2
CLOUDS SC SC SC B1 OV B2 B1 SC SC B1 B1 SC SC FW FW FW FW FW FW FW FW FW
CLOUDS(%) 40 30 49 68 94 79 53 41 42 52 54 45 40 14 8 12 19 21 9 14 10 19
VSBY 10 10 10 5 4 6 7 9 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 50 10 0 0
RAIN SHWRS SC O SC SC
TSTMS SC O SC SC
MIX HGT <1 <1 4 5 3 <1 <1 <1 <1 1 5 6 5 <1 <1 <1 <1 <1 5 7 7 <1
T WIND DIR SW S SW SW SW SW SW W W SW NW NW NW N N N N N NW W W SW
T WIND SPD 3 9 23 20 16 13 5 5 3 4 13 16 17 16 9 6 5 5 2 2 3 1
DISPERSION VP PR PR PR PR PR PR PR PR VP
ADI 1 9121 89 51 9 4 4 2 7 54101104 11 6 3 3 6 15 19 27 1
MAX LVORI 6 5 1 1 1 4 6 6 6 5 1 1 1 2 3 4 4 4 2 2 2 2
STABILITY F A B C C E E E E B C B B E E F F A A A A G
CEILING None 3600 None None None None None None None None
STA PRES 28.87 28.85 28.88 28.87 28.90 28.93 29.01 29.02 29.04 29.00
Date Thu 06/25/26Fri 06/26/26Sat 06/27/26Sun 06/28/26
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 88 67 89 67 89 68 91
TEMP 66 67 84 81 69 69 86 82 70 69 85 82 70 71 87 84
DEWPT 56 62 64 65 65 66 65 67 65 66 66 67 66 66 67 67
RH 70 84 51 58 87 90 50 61 84 90 53 61 87 84 52 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC SC SC SC B1 B1 SC SC B1 SC B1 SC SC
POP 12HR 5 20 30 40 30 40 20 20
RAIN SHWRS IS SC IS SC SC IS IS SC IS IS IS IS
TSTMS IS IS SC SC SC IS 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