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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
902 AM EDT Sun Mar 29 2026
NCZ006-292000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
902 AM EDT Sun Mar 29 2026
Date Sun 03/29/26 Mon 03/30/26 Tue 03/31/26
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 63 46 74 56 81
TEMP 50 60 63 57 51 50 48 50 63 71 73 69 63 61 58 57 71 79 81 75
DEWPT 24 22 21 26 33 40 43 44 48 48 47 48 48 50 52 52 56 55 54 53
MAX/MIN RH 20 83 39 87 39
RH 36 23 20 30 50 68 83 80 58 44 40 47 58 67 80 83 59 44 39 46
WIND DIR S S S S S S S SW SW SW SW S S S SW SW SW SW SW S
WIND SPD 6 9 9 4 4 8 6 4 8 10 9 4 5 6 6 5 9 10 10 6
WIND GUST 17 19 21 21
CLOUDS FW CL FW SC SC B1 B1 B1 SC SC SC FW FW FW FW FW FW SC SC SC
CLOUDS(%) 19 5 19 34 34 60 61 51 39 34 32 18 12 15 12 19 17 29 31 27
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 5 0 10
MIX HGT 3 5 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 1 3 6 6 <1
T WIND DIR S S S S S S SW SW SW SW SW SW SW S SW SW SW SW SW S
T WIND SPD 14 13 14 8 8 9 12 12 25 24 20 12 8 6 8 12 19 20 20 9
DISPERSION VP VP PR PR VP PR PR PR PR
ADI 51 55 60 4 4 8 8 14 97101 89 6 4 3 4 18 64 90 92 4
MAX LVORI 1 1 1 2 2 3 4 4 1 1 1 2 3 3 5 4 1 1 1 2
STABILITY B C C F F D E D B C C F F F F B C C C F
CEILING None None 2600 None None None None None None
STA PRES 29.81 29.78 29.73 29.73 29.65 29.65 29.63 29.64 29.53
Date Wed 04/01/26Thu 04/02/26Fri 04/03/26Sat 04/04/26
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 84 59 76 57 76 60 82
TEMP 66 62 82 76 65 61 74 70 59 57 70 71 64 61 76 73
DEWPT 55 57 58 59 59 58 58 54 55 55 57 58 59 59 60 58
RH 68 84 44 56 81 90 57 57 87 93 63 63 84 93 58 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR 5 60 50 50 50 60 40 50
RAIN SHWRS NM SC SC SC SC SC SC SC NM SC SC SC SC
TSTMS IS 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