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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Sat Apr 11 2026
VAZ018-112000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
802 AM EDT Sat Apr 11 2026
Date Sat 04/11/26 Sun 04/12/26 Mon 04/13/26
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 75 48 76 60 81
TEMP 67 73 74 63 56 52 50 51 62 72 76 69 64 61 60 61 74 79 81 73
DEWPT 52 45 39 39 39 38 40 43 48 48 48 49 47 47 46 48 48 47 46 45
MAX/MIN RH 28 74 38 63 29
RH 59 37 28 41 53 59 68 74 60 42 37 49 54 60 60 62 40 32 29 37
WIND DIR NW NW NW NW N E E E SE S S S S SW SW SW SW W W W
WIND SPD 6 6 4 2 1 1 1 2 4 6 6 5 4 6 6 6 9 9 8 5
WIND GUST 23 21 17 17 19 20 18 19 23 23 24 27 26 24 20
CLOUDS SC FW CL CL FW FW SC B1 SC SC SC SC SC B1 B1 B1 B1 B2 B1 SC
CLOUDS(%) 26 12 0 5 12 15 36 62 38 45 50 38 48 54 66 60 52 72 59 44
VSBY 10 10 10 10 10 10 9 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 5 0 10
MIX HGT 3 5 4 <1 <1 <1 <1 <1 2 3 5 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR NW NW NW NW NW E E SE S S S S S S SW SW W W W SW
T WIND SPD 14 17 11 8 3 2 3 5 10 12 13 12 9 8 11 11 26 29 21 6
DISPERSION VP VP VP VP PR VP PR PR PR
ADI 62 92 65 4 2 1 2 7 25 49 75 6 6 5 8 12102135102 5
MAX LVORI 1 1 1 2 2 3 3 3 2 1 1 2 3 3 3 2 1 1 1 2
STABILITY B B A G G G G B A B B F E E E B C C C E
CEILING None None None None None None None 900 11600 None
STA PRES 28.04 28.03 28.07 28.11 28.14 28.04 28.03 27.98 27.98 27.93
Date Tue 04/14/26Wed 04/15/26Thu 04/16/26Fri 04/17/26
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 59 86 61 90 63 89 64 87
TEMP 62 61 84 75 63 63 87 79 67 65 87 78 67 65 84 78
DEWPT 45 48 53 52 52 52 50 49 49 52 52 51 51 55 54 52
RH 54 62 34 45 67 67 28 35 52 63 30 39 56 70 36 40
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC B1 SC SC SC SC B1 B1 SC B1 SC SC
POP 12HR 5 10 5 10 5 10 20 30
RAIN SHWRS IS SC
TSTMS 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