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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Thu Apr 2 2026
NCZ001-030800-
RAWS 310141
36.40N 81.29W Elev. 3009 ft
802 PM EDT Thu Apr 2 2026
Date 04/02/26 Fri 04/03/26 Sat 04/04/26 Sun
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 54 71 55 70 55
TEMP 61 58 55 55 65 70 71 66 61 58 55 57 66 69 70 66 62 60 58 56
DEWPT 53 50 50 51 54 54 53 53 53 53 54 55 58 57 57 56 56 56 57 56
MIN/MAX RH 86 54 98 62 100
RH 75 75 83 86 68 57 53 63 75 83 96 93 75 66 63 70 81 87 96100
WIND DIR S S S S S S S S S S S SW S S S S S S S SW
WIND SPD 8 6 5 3 6 9 8 5 4 4 3 3 8 12 11 10 9 9 9 9
WIND GUST 18 19 20 19
CLOUDS FW B1 SC SC FW SC SC B1 B1 SC SC B1 SC B2 B2 SC SC B2 OV OV
CLOUDS(%) 22 52 46 48 25 29 50 67 56 50 42 53 50 76 76 42 42 78 88 92
VSBY 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 10 5 40 70
RAIN SHWRS IS IS SC SC IS IS NM NM O
TSTMS IS IS
Obvis PF PF
MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 4 3 2
T WIND DIR S S S SW SW SW S S S SW SW SW SW S S S
T WIND SPD 18 19 17 13 12 8 8 11 6 5 4 4 9 10 14 13
DISPERSION PR PR PR PR VP VP VP FR PR PR PR
ADI 12 9 8 14 30 31 40 8 5 4 2 5 24 27 36 15
MAX LVORI 4 4 5 4 3 1 1 3 3 5 8 7 3 3 1 3
STABILITY E F F B B C B E E E F B B D D D
CEILING None None None None 900 None None 1300 None
STA PRES 27.43 27.45 27.49 27.44 27.46 27.44 27.43 27.37
Date 04/05Mon 04/06/26Tue 04/07/26Wed 04/08/26Thu 04/09/26
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 37 57 36 54 28 52 31 60
TEMP 58 55 44 39 54 50 40 38 52 46 33 31 50 46 36 35 57 53
DEWPT 51 40 33 30 28 28 28 31 27 23 22 21 22 23 23 26 30 33
RH 77 57 65 70 36 42 62 76 38 40 63 66 33 40 59 69 35 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 SC FW FW SC SC SC SC FW FW CL FW FW FW FW FW FW
POP 12HR 90 5 0 0 0 0 0 0 5
RAIN SHWRS 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