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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Wed Apr 1 2026
NCZ005-020800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
832 PM EDT Wed Apr 1 2026
Date 04/01/26 Thu 04/02/26 Fri 04/03/26 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 61 82 60 81 62
TEMP 69 67 64 63 73 81 82 77 69 65 62 61 71 79 81 75 68 65 62 63
DEWPT 59 59 59 59 62 61 57 56 54 56 58 59 61 57 55 56 57 58 58 59
MIN/MAX RH 90 43 96 41 89
RH 70 75 84 87 68 51 43 48 59 73 87 93 71 47 41 52 68 78 87 87
WIND DIR SW S SW SW SW S S S S S S S SW SW SW S S S SW SW
WIND SPD 3 4 3 6 8 9 9 5 8 9 6 5 9 10 9 5 5 6 6 6
CLOUDS B1 SC FW SC SC SC FW FW FW FW SC B1 SC SC SC SC SC SC SC B1
CLOUDS(%) 66 49 16 39 44 43 25 25 10 17 35 58 47 30 32 35 26 37 41 55
VSBY 10 10 10 10 10 10 10 10 10 10 10 8 10 10 10 10 10 10 10 10
POP 12HR 50 5 5 20 5
RAIN SHWRS SC IS IS
TSTMS SC
MIX HGT <1 <1 <1 <1 2 5 6 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR S S S SW SW SW SW S S S S S SW SW SW SW
T WIND SPD 8 6 6 12 11 13 13 11 6 8 5 11 16 16 16 4
DISPERSION VP VP VP PR PR PR PR PR PR PR PR
ADI 5 5 3 13 29 59 60 5 5 5 3 13 52 66 68 2
MAX LVORI 3 4 5 4 3 1 1 2 3 3 6 5 3 1 1 2
STABILITY E E F B B C C F E E F D C C C F
CEILING None None None None None None None None None
STA PRES 29.41 29.45 29.54 29.50 29.52 29.55 29.58 29.50
Date 04/04Sun 04/05/26Mon 04/06/26Tue 04/07/26Wed 04/08/26
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 83 62 73 44 67 42 66 38 60
TEMP 81 77 69 64 71 65 51 45 63 60 47 44 63 59 45 40 57 53
DEWPT 59 55 58 59 58 50 39 34 31 32 33 35 33 30 30 28 26 26
RH 47 47 68 84 63 58 63 65 30 35 58 70 32 33 55 62 30 35
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 B2 OV B1 SC FW FW FW FW FW SC FW FW FW FW
POP 12HR 20 30 90 30 0 0 5 5 5
RAIN SHWRS IS IS SC NM O 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