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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Tue May 26 2026
VAZ046-262000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
131 PM EDT Tue May 26 2026
Date Tue 05/26/26 Wed 05/27/26 Thu 05/28/26
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 79 66 82 63 81
TEMP 77 78 75 70 69 68 68 77 82 80 74 69 66 64 66 76 81 80 73
DEWPT 72 71 72 70 69 68 68 71 71 70 70 68 65 63 64 66 64 64 64
MAX/MIN RH 79 100 69 97 56
RH 85 79 90100100100100 82 69 72 87 97 97 97 93 71 56 58 73
WIND DIR NW SE SE S SW SW SW SW SW W W W W NW NW N N NE NE
WIND SPD 2 2 2 3 4 6 6 8 8 8 4 4 4 4 3 5 5 4 4
CLOUDS B2 B1 B2 OV B2 B2 OV B2 B1 B2 B1 SC SC SC SC SC B1 B1 SC
CLOUDS(%) 82 69 86 90 87 87 89 72 51 71 61 48 40 44 44 33 52 52 41
VSBY 9 9 7 5 5 6 8 10 10 10 10 10 4 3 10 10 10 10 10
POP 12HR 80 80 70 40 30
RAIN SHWRS SC NM O SC IS SC SC SC IS IS IS IS SC SC
TSTMS IS SC SC IS SC SC SC SC SC
MIX HGT 2 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR S S SE NE E SW SW W W W W N NE NE NE N N NW N
T WIND SPD 2 5 8 2 1 2 3 16 20 18 12 2 1 1 1 9 9 9 11
DISPERSION VP VP VP PR VP VP VP VP VP
ADI 7 17 4 1 1 2 3 41 70 43 8 2 1 1 1 39 39 30 8
MAX LVORI 4 3 6 10 10 10 9 3 1 3 5 8 9 9 7 3 1 1 3
STABILITY B B F F E E C B C C E E F E A A C C E
CEILING 1600 2800 4900 7000 3900 None None None None
STA PRES 29.35 29.32 29.30 29.29 29.19 29.21 29.24 29.27 29.23
Date Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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 56 78 57 79 54 74 53 75
TEMP 61 60 76 73 61 61 77 73 59 57 72 69 58 58 73 69
DEWPT 57 54 57 61 56 56 59 59 54 51 54 57 53 53 55 57
RH 87 81 52 66 84 84 54 62 83 80 53 66 83 83 53 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC SC B1 B1 B1 SC FW FW FW SC SC SC SC
POP 12HR 0 0 0 5 5 5 20 20
RAIN SHWRS 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