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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Mon Apr 13 2026
VAZ018-140800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Mon Apr 13 2026
Date 04/12/26 Mon 04/13/26 Tue 04/14/26 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 59 80 59 85 61
TEMP 61 60 62 74 78 78 69 65 61 60 61 76 82 84 76 68 63 62 63
DEWPT 46 45 45 46 47 45 46 46 45 46 48 53 53 53 51 52 52 50 49
MIN/MAX RH 58 32 62 34 66
RH 58 58 54 37 33 31 44 50 56 60 62 45 37 34 42 57 67 65 60
WIND DIR SW SW SW SW W W W W W W W W W W SW W W W W
WIND SPD 6 6 6 9 9 6 4 3 2 2 3 5 6 5 3 3 3 3 3
WIND GUST 21 24 25 28 25 23 17 13 13 13 14 20 19 19 14 14 14 14 16
CLOUDS B1 B2 B1 B1 B2 B1 SC FW SC SC SC SC SC SC FW FW SC SC FW
CLOUDS(%) 52 71 59 68 73 65 32 24 26 40 44 32 48 40 19 20 39 44 25
VSBY 10 10 10 10 9 10 10 9 10 10 10 10 10 10 10
POP 12HR 5 20 5 20 5
RAIN SHWRS IS IS IS
TSTMS IS
MIX HGT <1 <1 <1 5 6 4 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR S SW SW W W W SW W W W W W W SW SW
T WIND SPD 4 1 6 31 29 23 11 4 3 4 4 13 12 13 10
DISPERSION PR PR VP VP VP VP VP VP VP VP
ADI 3 1 5125132 89 5 2 2 2 4 53 78 53 5
MAX LVORI 3 3 3 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY E E C C C C F G G G A A B A G
CEILING 19800 10500 None None None None None None
STA PRES 27.99 28.01 27.99 27.96 27.93 27.93 27.86
Date 04/15Thu 04/16/26Fri 04/17/26Sat 04/18/26Sun 04/19/26
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 61 87 61 86 60 90 62 81
TEMP 86 79 65 63 85 78 65 63 83 76 62 62 87 79 68 63 77 67
DEWPT 49 48 47 50 50 47 48 54 48 46 47 50 51 49 50 50 47 44
RH 28 34 52 62 30 33 54 72 30 34 58 65 29 35 52 62 35 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B1 SC SC SC FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 0 0 10 20 20 0 20 20 40
RAIN SHWRS IS IS IS IS IS IS SC 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