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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri May 29 2026
NCZ006-300800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EDT Fri May 29 2026
Date 05/29/26 Sat 05/30/26 Sun 05/31/26 Mon
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 63 85 53 79 58
TEMP 69 68 65 67 78 83 83 75 64 60 55 56 68 76 79 74 64 62 59 63
DEWPT 58 60 61 59 52 49 51 51 47 47 47 48 48 48 48 50 50 52 54 56
MIN/MAX RH 88 30 78 34 83
RH 68 76 87 75 40 31 33 43 54 62 74 74 49 37 34 43 60 70 83 78
WIND DIR S SW W NW N N NE NE NE NE NE NE E SE S S S S SW SW
WIND SPD 1 1 1 3 6 5 6 11 9 5 1 2 2 2 2 1 2 3 5 5
CLOUDS B2 B2 B1 SC SC SC SC B2 B2 B1 SC SC SC B1 SC B1 SC B1 B1 B1
CLOUDS(%) 75 71 64 41 48 32 41 78 71 56 30 42 48 55 49 53 46 59 57 69
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 0 0 10
RAIN SHWRS SC
MIX HGT <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 2 4 5 6 <1
T WIND DIR S SW SW N NE N NE NE NE E E NE NE NW W SW
T WIND SPD 4 4 3 10 11 9 6 19 24 16 12 10 4 2 4 9
DISPERSION VP VP VP FR PR PR VP VP VP VP PR
ADI 2 2 2 10 47 65 45 18 16 7 6 24 25 15 35 4
MAX LVORI 3 3 6 4 1 1 1 2 2 3 3 3 2 2 1 2
STABILITY F F F A A A B D E F G A A A A F
CEILING 17100 None None None 5900 None None None None
STA PRES 29.27 29.24 29.28 29.29 29.41 29.50 29.53 29.43
Date 06/01Tue 06/02/26Wed 06/03/26Thu 06/04/26Fri 06/05/26
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 82 56 81 53 81 54 85 59 89
TEMP 79 76 63 61 78 74 58 59 79 75 59 59 83 79 65 65 86 83
DEWPT 58 58 55 54 49 50 50 50 45 48 48 50 49 52 53 56 54 55
RH 49 54 75 78 36 43 75 72 30 38 67 72 31 39 65 73 34 38
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC FW FW FW FW FW FW CL FW FW FW FW SC SC
POP 12HR 50 20 10 0 5 0 5 5 5
RAIN SHWRS SC SC IS
TSTMS 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