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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Wed Apr 29 2026
NCZ003-300800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
731 PM EDT Wed Apr 29 2026
Date 04/29/26 Thu 04/30/26 Fri 05/01/26 Sat
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 68 40 69 44
TEMP 68 61 56 53 53 61 65 66 59 50 45 41 44 57 65 68 63 54 50 48 45
DEWPT 59 55 51 48 47 45 41 37 36 34 34 33 34 37 37 39 41 41 41 40 41
MIN/MAX RH 94 35 73 34 86
RH 73 81 83 83 80 56 41 34 42 54 65 73 68 47 35 34 44 61 71 74 86
WIND DIR W NW NW NW NW NW NW NW NW N N N N S S SW SW NW N N N
WIND SPD 5 5 4 3 4 8 9 9 4 3 2 1 1 2 4 4 2 2 2 2 2
WIND GUST 16 17 16 16
CLOUDS B1 B1 B1 B2 B2 SC FW FW FW SC B1 B1 B1 SC B1 B1 B2 B2 B2 B2 B2
CLOUDS(%) 67 60 68 86 79 30 21 19 9 33 57 63 53 43 52 63 82 83 82 86 84
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 0 5 40
RAIN SHWRS IS SC SC SC
TSTMS
MIX HGT <1 <1 <1 1 2 4 6 7 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR W NW NW NW NW NW NW NW NW N N N N S S SW SW
T WIND SPD 9 13 12 14 16 17 12 13 17 13 13 9 4 5 9 10 10
DISPERSION PR PR VP VP VP VP VP VP VP VP VP VP
ADI 6 9 6 7 43 89 89100 8 6 6 4 8 30 67 84 5
MAX LVORI 3 4 4 4 3 1 1 1 2 3 3 3 3 2 1 1 2
STABILITY E E F F C B B B F G F F A A B A F
CEILING 3600 8900 None None None 14500 None 17700 19700
STA PRES 27.92 27.93 27.97 27.96 28.05 28.08 28.10 28.03
Date 05/02Sun 05/03/26Mon 05/04/26Tue 05/05/26Wed 05/06/26
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 60 36 67 38 75 47 78 48 78
TEMP 57 57 42 41 62 60 42 43 70 67 53 53 75 69 54 53 75 72
DEWPT 44 37 32 31 31 34 32 34 43 47 46 47 48 49 47 47 53 53
RH 62 47 67 67 31 37 67 70 38 49 77 80 38 49 77 80 46 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC CL FW FW CL CL FW SC SC SC FW SC SC SC SC SC
POP 12HR 50 10 0 0 20 20 20 10 20
RAIN SHWRS SC SC IS IS IS IS
TSTMS IS IS 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