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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Mar 30 2026
NCZ005-310800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
231 PM EDT Mon Mar 30 2026
Date 03/30/26 Tue 03/31/26 Wed 04/01/26 Thu
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 56 80 61 85 61
TEMP 73 68 62 60 57 58 69 78 80 74 69 66 63 62 74 82 84 78 70 67 63 61
DEWPT 49 49 48 50 52 53 57 57 55 55 55 57 57 57 60 59 57 57 58 59 59 58
MIN/MAX RH 88 42 85 40 90
RH 43 51 60 69 83 83 66 48 42 51 61 73 81 84 62 46 40 48 66 75 87 90
WIND DIR SW SW SW S SW SW SW SW SW S SW SW SW SW SW SW SW S S S S S
WIND SPD 11 6 8 9 9 9 11 12 12 8 10 10 10 9 10 10 9 5 5 5 5 5
CLOUDS FW FW FW SC FW FW SC FW FW SC FW SC FW SC SC B1 B1 B1 SC SC FW SC
CLOUDS(%) 25 20 19 30 16 19 27 18 21 26 20 28 22 31 35 59 59 63 46 27 24 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 10 0 40 20
RAIN SHWRS SC SC IS IS
TSTMS IS
MIX HGT 6 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 6 7 <1
T WIND DIR SW S SW S S SW SW SW SW SW SW SW SW SW W W SW SW
T WIND SPD 19 8 6 6 8 13 23 18 20 8 8 9 8 6 13 14 14 6
DISPERSION PR PR PR PR PR FR FR FR PR PR PR PR
ADI 85 4 5 5 5 11 69 74 88 5 5 6 5 5 38 66 52 5
MAX LVORI 1 2 3 3 4 4 1 1 1 2 3 3 4 5 1 1 1 2
STABILITY C F E E E C C C C E E E E C C C D E
CEILING None None None None None None None None 6100 None
STA PRES 29.53 29.53 29.53 29.52 29.43 29.43 29.42 29.47 29.41
Date 04/02Fri 04/03/26Sat 04/04/26Sun 04/05/26Mon 04/06/26
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 60 80 61 83 63 78 49 65
TEMP 81 76 66 62 78 75 65 62 80 76 68 64 75 70 57 50 63 60
DEWPT 57 54 57 59 57 56 58 59 58 57 57 59 58 52 47 44 43 38
RH 44 46 73 90 48 52 78 90 47 52 68 84 55 53 69 80 48 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW B1 B1 B1 B1 B1 B1 B1 SC B1 B2 B2 B1 B1 B1 B1
POP 12HR 20 10 40 20 40 30 60 40 30
RAIN SHWRS IS SC SC IS IS SC IS SC SC NM SC SC SC SC
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