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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
402 AM EDT Wed Apr 1 2026
NCZ005-012000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
402 AM EDT Wed Apr 1 2026
Date Wed 04/01/26 Thu 04/02/26 Fri 04/03/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 84 61 83 60 80
TEMP 62 62 73 82 84 76 70 68 64 62 73 81 82 76 69 66 62 61 70 78 80 75
DEWPT 57 57 60 58 56 57 59 60 59 59 60 58 55 54 54 57 58 60 62 59 57 57
MAX/MIN RH 39 89 40 97 45
RH 84 84 64 44 38 52 68 76 84 90 64 46 40 46 59 73 87 97 76 52 45 54
WIND DIR SW SW SW SW SW S SW SW S SW SW S S S S S S S SW SW S S
WIND SPD 9 8 9 9 9 5 6 6 6 5 8 9 10 5 8 9 6 5 8 10 9 4
CLOUDS FW SC SC SC B1 B2 B1 SC FW FW SC FW FW FW FW FW SC B1 B1 B1 B1 B1
CLOUDS(%) 21 46 47 38 55 70 57 43 19 21 27 24 21 17 10 20 43 69 57 52 52 55
VSBY 10 10 10 10 8 8 8 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 20 10 5 20
RAIN SHWRS IS IS IS IS IS IS
TSTMS IS IS
MIX HGT <1 <1 2 6 6 <1 <1 <1 <1 <1 2 5 5 <1 <1 <1 <1 1 3 5 6 <1
T WIND DIR SW SW SW SW SW S S S S SW SW SW S S S S S SW SW SW SW S
T WIND SPD 8 8 11 10 14 9 8 6 5 12 12 14 13 11 6 6 13 13 13 13 14 12
DISPERSION PR PR PR PR PR PR PR PR PR VP
ADI 5 8 28 46 51 6 5 5 3 14 37 63 59 5 5 5 9 21 32 44 48 8
MAX LVORI 5 4 2 1 1 2 3 4 5 5 1 1 1 2 3 3 5 5 3 1 1 2
STABILITY E B C C D E E E F B B C C F E E E D D D D E
CEILING None 4900 None None None None None None None None
STA PRES 29.45 29.38 29.42 29.46 29.55 29.50 29.53 29.56 29.60 29.52
Date Sat 04/04/26Sun 04/05/26Mon 04/06/26Tue 04/07/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 61 82 61 73 43 65 41 68
TEMP 66 62 81 77 68 63 70 65 51 44 62 58 47 43 66 60
DEWPT 59 59 58 55 58 59 57 50 37 31 29 31 33 34 36 34
RH 78 90 46 47 70 87 63 58 59 60 28 36 58 70 33 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 SC SC B1 B2 OV B1 SC FW FW FW SC SC SC
POP 12HR 10 20 30 80 40 5 0 5
RAIN SHWRS IS IS SC NM O SC IS
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