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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sun Jul 26 2026
VAZ018-270800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 PM EDT Sun Jul 26 2026
Date 07/26/26 Mon 07/27/26 Tue 07/28/26 Wed
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 65 87 68 84 65
TEMP 80 72 68 66 65 67 79 85 87 78 71 70 69 69 77 83 80 73 70 68 66 67
DEWPT 68 68 65 64 64 66 68 66 65 66 64 64 65 67 72 73 71 68 66 65 64 64
MIN/MAX RH 97 48 96 70 94
RH 67 87 90 93 97 97 69 53 48 67 79 81 87 93 85 72 74 84 87 90 93 90
WIND DIR NW NW NW NW NW NW NW NW NW NW W W W W W W W NW NW NW NW NW
WIND SPD 4 3 2 2 3 3 3 3 4 2 2 2 3 5 8 9 9 9 8 6 6 9
WIND GUST 13 16 20 25 26 27 26 27 25 27 29
CLOUDS SC SC SC FW SC SC SC B1 SC FW SC SC B2 OV OV B2 B2 SC SC B1 SC SC
CLOUDS(%) 46 49 38 18 41 45 39 53 47 25 50 38 80 90 90 84 84 43 35 52 42 46
VSBY 10 10 8 6 1 0 10 10 10 7 7 6 6 6 6 6 6 7
POP 12HR 20 5 70 80 10
RAIN SHWRS IS IS O O O O
TSTMS IS IS IS SC SC
MIX HGT 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 3 3 1
T WIND DIR W NW N W NW NW N N NW NW W W W SW W S W N
T WIND SPD 12 16 2 1 3 5 9 5 8 6 3 2 3 4 21 20 8 5
DISPERSION VP VP VP VP VP VP VP VP PR PR PR PR
ADI 77 7 1 1 2 6 38 34 52 3 2 1 2 5 57 66 24 6
MAX LVORI 1 5 7 8 8 6 3 1 1 3 4 5 5 6 4 3 3 5
STABILITY A F G G F A A B A G F G F B B C C D
CEILING None None None None None 9700 8900 2100 None
STA PRES 27.67 27.66 27.68 27.66 27.65 27.60 27.52 27.45
Date 07/29Thu 07/30/26Fri 07/31/26Sat 08/01/26Sun 08/02/26
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 62 82 62 83 64 82 66 79
TEMP 81 73 65 64 80 73 63 64 82 74 66 67 80 73 67 67 77 70
DEWPT 65 63 61 61 63 62 59 60 62 63 61 63 66 66 65 66 69 68
RH 58 71 87 90 56 68 87 87 51 69 84 87 62 79 93 97 76 93
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW SC SC FW FW SC SC B1 B2 B2 B2 B2 B1 B1 B2
POP 12HR 0 0 5 0 5 10 50 50 60
RAIN SHWRS IS SC SC SC SC NM
TSTMS SC IS 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