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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 AM EDT Fri Apr 3 2026
NCZ005-040800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
132 AM EDT Fri Apr 3 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 59 82 63 82 63
TEMP 65 61 62 71 80 82 76 69 67 64 63 73 80 82 76 70 69 66 64
DEWPT 55 57 59 60 57 54 55 57 60 60 61 62 61 58 58 58 59 59 60
MIN/MAX RH 95 40 93 45 89
RH 70 87 90 68 45 38 48 66 78 87 93 68 52 44 54 66 70 78 87
WIND DIR S S SW SW SW SW S S SW SW SW SW SW SW S S S S SW
WIND SPD 9 6 5 9 10 10 5 6 6 6 6 10 11 12 9 10 12 13 13
CLOUDS FW SC B2 SC FW FW FW SC SC SC B1 SC SC SC SC SC B1 B1 OV
CLOUDS(%) 12 49 71 38 24 17 22 42 42 45 52 45 48 48 50 26 55 60 98
VSBY 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 20 30
RAIN SHWRS IS IS SC SC O
TSTMS IS IS IS
MIX HGT <1 <1 1 3 5 6 <1 <1 <1 <1 1 3 5 5 <1
T WIND DIR S S SW SW SW SW SW SW S SW SW SW SW SW SW
T WIND SPD 8 5 10 16 16 14 11 4 5 6 10 13 16 18 11
DISPERSION PR PR PR PR PR PR PR FR FR FR
ADI 5 3 13 51 69 66 5 3 4 5 14 47 69 78 10
MAX LVORI 4 6 5 1 1 1 2 3 4 5 5 1 1 1 2
STABILITY E F D C C C F E E E D C C C D
CEILING None None None None None None None None
STA PRES 29.56 29.58 29.51 29.53 29.52 29.53 29.42
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 72 45 67 43 64 36 60 35 68
TEMP 69 65 52 46 63 60 48 45 62 57 44 38 57 53 41 38 65 61
DEWPT 61 52 38 34 31 31 32 34 30 25 25 23 23 25 28 30 34 36
RH 76 63 59 63 30 33 54 65 30 29 47 54 27 33 59 73 31 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B1 SC FW FW SC SC SC SC FW FW FW FW FW FW FW FW
POP 12HR 100 20 0 0 0 0 0 0 5
RAIN SHWRS O O IS
TSTMS 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