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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Mar 24 2026
NCZ005-242000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
801 AM EDT Tue Mar 24 2026
Date Tue 03/24/26 Wed 03/25/26 Thu 03/26/26
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 55 37 63 47 77
TEMP 43 51 55 49 43 41 39 38 51 61 63 58 52 51 49 49 63 74 77 71
DEWPT 20 18 18 20 22 24 27 28 29 27 27 30 33 35 38 41 47 49 50 50
MAX/MIN RH 23 68 24 73 38
RH 39 27 23 31 43 50 62 67 42 27 25 34 48 54 66 74 56 41 39 47
WIND DIR NE NE E E SE S S S S S S S S SW SW SW SW SW SW SW
WIND SPD 6 5 4 2 2 2 2 2 3 5 6 4 5 5 5 5 8 10 11 6
CLOUDS SC SC CL FW SC B1 B1 B1 SC SC SC B1 SC B1 SC SC FW SC FW FW
CLOUDS(%) 33 45 5 19 43 68 69 59 45 36 50 58 39 51 44 46 17 28 21 14
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 0 5
MIX HGT 3 4 4 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 2 5 5 <1
T WIND DIR NE NE E E SE S S S S S SW SW SW SW SW SW SW SW SW SW
T WIND SPD 9 5 3 2 4 3 2 4 9 11 16 14 13 13 12 12 14 17 23 10
DISPERSION VP VP VP VP VP PR PR PR PR
ADI 37 28 17 1 2 2 1 5 30 51 75 10 6 9 8 13 34 69 96 5
MAX LVORI 1 2 2 2 2 2 3 3 2 1 1 2 2 2 3 3 1 1 1 2
STABILITY B B B G F F F B B B B E F E E B B C C F
CEILING None None None 12300 None None None None None None
STA PRES 29.67 29.60 29.61 29.60 29.58 29.49 29.45 29.41 29.38 29.28
Date Fri 03/27/26Sat 03/28/26Sun 03/29/26Mon 03/30/26
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 60 83 41 57 34 62 42 70
TEMP 66 62 81 67 49 41 55 51 39 35 59 55 46 43 66 63
DEWPT 52 54 54 48 40 30 19 19 21 23 22 26 30 33 36 38
RH 61 75 39 50 71 65 24 28 48 61 24 32 53 67 33 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B1 B2 B2 B1 FW FW FW FW FW FW SC B1 B1 SC
POP 12HR 0 40 60 5 5 5 10 10
RAIN SHWRS SC NM SC
$$
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