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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 PM EDT Wed Apr 29 2026
NCZ006-300800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
201 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 53 74 43 71 48
TEMP 73 71 64 60 55 56 66 72 72 64 54 48 44 47 60 68 71 65 57 55 51 49
DEWPT 62 63 62 57 53 52 50 44 41 39 37 37 36 38 38 37 38 40 41 43 44 46
MIN/MAX RH 95 32 75 29 89
RH 68 76 93 90 93 86 56 37 33 40 52 65 73 71 44 32 30 40 55 64 77 89
WIND DIR SW SW W NW NW NW NW NW NW N N N N N NE S SW S S NW N N
WIND SPD 8 3 3 3 3 4 6 8 8 4 3 2 2 1 2 4 4 2 2 2 2 3
CLOUDS B1 B2 SC B1 B2 B2 SC FW FW SC FW SC B1 B1 SC SC B1 B2 B2 OV OV OV
CLOUDS(%) 64 83 50 55 72 72 28 20 15 27 15 33 52 65 34 36 51 75 74 89 88 91
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 0 0 5 40
RAIN SHWRS IS SC SC SC NM
TSTMS IS IS
MIX HGT 3 <1 <1 <1 <1 <1 4 6 7 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR SW S SE NW N NW N NW NW NW NW N N N SE S SW S
T WIND SPD 12 3 1 5 5 11 16 10 12 11 10 9 5 10 2 4 10 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 40 2 1 3 3 12 81 73 96 5 5 4 3 12 12 33 78 3
MAX LVORI 3 4 8 6 6 4 1 1 1 2 2 3 3 3 2 1 1 2
STABILITY C F F F F B B B B F G G F A A A B F
CEILING 1100 None 15400 None None None None None None 17900
STA PRES 29.14 29.13 29.17 29.23 29.20 29.31 29.36 29.38 29.29
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 62 38 69 42 77 53 82 52 83
TEMP 57 57 44 43 65 61 45 47 74 70 57 56 79 73 57 57 80 75
DEWPT 48 44 38 36 33 35 35 38 40 45 47 49 48 51 49 51 52 54
RH 72 62 79 76 30 38 68 71 29 41 69 77 34 46 75 80 38 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 SC FW FW CL CL FW FW FW FW FW FW SC SC SC SC SC
POP 12HR 60 20 0 0 5 10 10 5 10
RAIN SHWRS NM SC 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