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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Jun 21 2026
NCZ005-220800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
231 PM EDT Sun Jun 21 2026
Date 06/21/26 Mon 06/22/26 Tue 06/23/26 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 69 95 68 88 63
TEMP 90 86 76 72 70 74 87 93 90 81 74 72 70 72 82 87 85 81 72 67 64 68
DEWPT 58 60 60 61 63 67 68 67 68 70 70 68 67 67 66 65 64 62 60 59 59 59
MIN/MAX RH 81 41 93 47 82
RH 34 42 58 68 78 79 53 43 49 69 87 87 90 84 58 48 50 53 66 75 84 73
WIND DIR SW S S S SW SW SW SW SW SW SW W W NW NW NW NW N N N N N
WIND SPD 5 2 3 3 4 5 10 11 11 5 4 3 4 5 6 8 8 5 4 3 4 4
WIND GUST 21
CLOUDS FW SC FW SC SC FW SC SC B1 B2 B1 SC FW SC SC SC SC FW SC SC SC SC
CLOUDS(%) 18 39 25 35 34 20 27 37 69 73 61 41 12 26 34 35 35 25 26 30 36 35
VSBY 10 10 10 10 10 10 10 10 10 10 7 7 9 10 10 10 10 10
POP 12HR 0 70 60 20 5
RAIN SHWRS SC NM SC IS IS
TSTMS SC SC SC IS IS
MIX HGT 9 <1 <1 <1 <1 1 5 7 5 <1 <1 <1 <1 1 4 6 6 <1
T WIND DIR SW S S S S S SW SW SW NW SW W W NW N NW N N
T WIND SPD 8 4 4 4 4 10 23 21 20 10 2 6 5 18 13 10 10 12
DISPERSION VP VP VP VP PR VP VP VP PR VP VP VP
ADI 80 2 2 2 2 16137103 63 7 2 3 3 31 72 70 72 6
MAX LVORI 1 2 3 3 4 3 1 1 1 3 5 6 6 4 1 1 1 2
STABILITY A G G G F A B C D E E F F A B B B F
CEILING None None None None 11500 5800 None None None None
STA PRES 29.18 29.21 29.21 29.20 29.14 29.18 29.22 29.29 29.28
Date 06/24Thu 06/25/26Fri 06/26/26Sat 06/27/26Sun 06/28/26
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 88 65 91 69 91 69 93 70 96
TEMP 85 83 69 70 88 85 73 73 88 85 72 72 91 87 74 75 93 90
DEWPT 58 58 59 64 63 63 65 67 66 67 66 66 64 65 65 66 65 66
RH 40 43 70 81 43 48 76 81 48 55 81 81 41 48 74 74 40 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC B1 B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 0 5 30 40 40 30 30 30 20
RAIN SHWRS SC SC SC IS SC SC SC SC SC IS
TSTMS SC SC SC IS 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
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