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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Apr 23 2026
NCZ003-240800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Thu Apr 23 2026
Date 04/23/26 Fri 04/24/26 Sat 04/25/26 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 83 55 77 50
TEMP 63 58 55 58 77 80 80 74 64 59 56 60 74 76 73 68 61 56 51 53
DEWPT 45 44 44 46 49 50 50 51 50 49 49 52 57 58 59 58 55 53 50 49
MIN/MAX RH 67 34 77 53 94
RH 52 59 66 64 37 35 35 44 60 69 77 75 55 54 62 70 81 90 96 86
WIND DIR NW W NW NW W W SW SW NW NW NW W W W NW NW NW NW NW N
WIND SPD 2 2 1 1 2 3 3 1 1 1 1 1 2 4 4 2 2 2 2 2
CLOUDS FW SC SC FW SC B1 B1 SC FW FW SC B1 B1 OV OV B2 B1 SC SC SC
CLOUDS(%) 6 36 28 11 41 61 53 29 22 25 42 60 67 89 89 71 61 35 35 28
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 10 20 80 60
RAIN SHWRS IS SC SC O NM SC IS IS IS
TSTMS SC IS
MIX HGT <1 <1 <1 <1 9 9 7 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR W NW NW NW W SW SW SW W NW NW NW NW W W W
T WIND SPD 3 4 5 5 6 8 10 3 3 4 4 4 9 11 8 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 3 6 69 70 75 2 2 2 2 5 34 44 25 2
MAX LVORI 2 3 3 3 1 1 1 2 3 3 4 3 1 1 2 3
STABILITY G G G A A B B G G G F B B C C F
CEILING None None None None None None 5600 4300 None
STA PRES 28.07 28.04 28.04 27.97 27.97 27.95 27.97 27.96
Date 04/26Mon 04/27/26Tue 04/28/26Wed 04/29/26Thu 04/30/26
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 76 45 70 50 74 53 79 50 75
TEMP 73 72 53 47 68 66 55 52 67 69 58 56 76 71 57 55 73 69
DEWPT 50 49 45 43 47 48 47 48 58 57 54 53 52 48 47 47 47 46
RH 44 44 74 86 47 52 74 86 73 66 86 90 43 44 69 74 40 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 SC SC SC B2 B2 B1 SC B1 B1 B1 SC SC B1 B1
POP 12HR 20 20 10 50 70 30 40 20 40
RAIN SHWRS IS IS IS IS SC NM SC IS SC SC SC IS IS SC SC
TSTMS IS 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