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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
238 PM EDT Sat Apr 11 2026
VAZ046-120800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
238 PM EDT Sat Apr 11 2026
Date 04/11/26 Sun 04/12/26 Mon 04/13/26 Tue
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 51 77 60 83 61
TEMP 78 70 62 57 53 53 64 73 76 72 66 65 62 63 74 82 83 79 71 66 62 63
DEWPT 50 49 47 46 44 44 45 48 49 50 51 52 54 55 55 52 50 49 49 49 49 50
MIN/MAX RH 76 39 77 32 64
RH 37 47 58 67 71 71 50 41 39 46 58 63 75 75 51 35 32 35 46 54 62 62
WIND DIR N NE E E E E SE S S S S S SW SW SW SW SW SW SW SW SW SW
WIND SPD 5 5 5 4 3 3 5 6 8 5 8 10 10 11 13 13 13 9 9 6 5 5
WIND GUST 18 21 23 24 24 25 24 20 20 17
CLOUDS FW FW SC B1 B1 B1 B1 FW FW SC SC B1 B1 B1 B1 B1 B1 B1 SC FW SC SC
CLOUDS(%) 10 20 39 51 62 67 52 22 19 30 50 60 68 63 52 63 62 54 30 16 29 34
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 5 5
MIX HGT 8 <1 <1 <1 <1 1 3 4 5 <1 <1 <1 1 2 3 7 7 <1
T WIND DIR NW NE E E SE SE S S S S S SW SW SW SW SW SW SW
T WIND SPD 3 8 14 12 10 9 11 9 13 6 6 8 18 19 20 25 24 6
DISPERSION PR PR VP VP PR PR FR FR PR PR PR PR
ADI 31 4 7 8 5 15 36 44 75 3 6 7 16 32 70118 86 6
MAX LVORI 1 2 3 3 3 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY A F F E F B C B B F D D D D C C D D
CEILING None None 3200 None None None 1300 9100 12000 None
STA PRES 29.53 29.62 29.69 29.74 29.63 29.60 29.57 29.55 29.45
Date 04/14Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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 89 63 93 66 92 66 89 63 91
TEMP 86 82 69 67 90 85 73 68 90 85 73 68 87 81 70 66 88 84
DEWPT 54 53 53 53 51 50 49 52 52 50 54 56 56 52 56 57 56 54
RH 34 37 57 61 26 30 43 57 27 30 51 65 35 37 61 73 34 36
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW SC SC SC SC SC SC SC SC SC SC SC SC B1
POP 12HR 5 0 0 0 5 10 20 10 30
RAIN SHWRS 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