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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Mon Apr 13 2026
VAZ018-140800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 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 60 81 59 85 62
TEMP 61 62 75 79 77 68 65 62 60 61 75 83 84 76 69 65 63 63
DEWPT 45 46 47 50 51 49 47 45 45 48 52 55 54 53 52 52 51 50
MIN/MAX RH 58 36 63 35 65
RH 56 56 37 36 40 51 52 54 58 62 45 38 36 45 55 63 65 62
WIND DIR SW SW W W W W W W W W W W W SW W W W W
WIND SPD 6 6 9 9 6 4 3 2 2 3 5 6 6 3 3 3 3 4
WIND GUST 24 25 27 26 23 17 13 12 13 14 19 20 18 14 16 16 16 17
CLOUDS B2 B1 B1 B1 B2 SC SC SC SC SC SC SC SC FW FW SC SC FW
CLOUDS(%) 71 63 61 63 71 46 27 36 28 36 37 48 43 25 18 31 38 23
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 30 5 20 5
RAIN SHWRS IS SC IS IS
MIX HGT <1 <1 5 4 3 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1
T WIND DIR S SW W W SW SW W W W W W SW SW W W W W W
T WIND SPD 8 6 31 26 23 11 5 5 5 5 18 12 13 12 5 5 5 6
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 5 7125102 68 8 3 3 3 6 68 78 76 6 3 3 3 7
MAX LVORI 2 3 1 1 1 2 2 2 3 3 1 1 1 2 2 3 3 3
STABILITY E B C C C E G G G A A B B G G G G A
CEILING 14600 9400 5600 None None None None None None
STA PRES 27.97 27.98 27.95 27.94 27.92 27.90 27.84 27.85 27.83
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 62 88 61 86 59 90 59 75
TEMP 86 79 65 64 86 78 66 63 84 75 62 62 89 80 69 61 72 62
DEWPT 52 49 47 51 50 46 49 54 49 47 48 50 51 50 50 50 43 36
RH 31 35 52 63 29 32 54 72 30 37 60 65 27 35 51 67 35 38
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B1 SC B1 SC FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 5 0 5 20 10 0 20 30 40
RAIN SHWRS IS IS IS SC SC SC 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