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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EDT Mon May 25 2026
VAZ046-260800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1001 PM EDT Mon May 25 2026
Date 05/25/26 Tue 05/26/26 Wed 05/27/26 Thu
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 79 65 83 63
TEMP 68 67 65 66 72 77 77 73 70 69 67 68 77 81 79 74 70 67 64 67
DEWPT 67 66 64 65 70 72 72 71 68 67 66 67 71 72 71 71 69 66 63 65
MIN/MAX RH 97 83 97 73 97
RH 97 97 97 97 93 85 85 93 93 93 97 97 82 74 77 90 97 97 97 93
WIND DIR E SE SE S W SW S SE SW SW SW SW SW W W W W W NW NW
WIND SPD 2 1 1 2 3 3 3 2 2 3 5 6 8 8 6 4 4 4 4 3
CLOUDS OV OV OV OV B1 B2 B2 B1 OV B2 B2 B1 B1 OV OV B2 B1 B1 SC B1
CLOUDS(%) 92 94 91 88 63 74 75 66 93 84 85 64 55 92 92 71 60 60 50 51
VSBY 6 3 2 2 6 9 10 10 6 7 7 7 7 6 6 7
POP 12HR 80 80 70 90 30
RAIN SHWRS SC NM SC NM SC SC NM NM IS IS IS O O SC SC IS IS SC
TSTMS IS IS IS SC SC SC IS IS SC SC IS
Obvis F PF PF
MIX HGT <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 3 3 2 <1
T WIND DIR SW SW SW SW SW SW SW SW S S SW SW W W W NW
T WIND SPD 6 8 6 3 5 11 12 10 2 2 5 14 23 18 17 12
DISPERSION VP VP VP VP VP VP PR VP VP VP VP
ADI 3 4 3 4 9 35 36 5 1 1 4 16 81 64 41 8
MAX LVORI 9 9 9 9 8 4 4 9 10 10 9 5 4 3 3 5
STABILITY F F F B B B B F F F E B B C C E
CEILING 3000 400 1900 3300 6800 8800 4200 4200
STA PRES 29.36 29.38 29.33 29.31 29.28 29.27 29.20
Date 05/28Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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 83 57 78 55 73 53 71 52 75
TEMP 81 75 62 60 75 72 61 59 71 68 59 56 69 67 56 56 72 68
DEWPT 65 65 58 56 58 61 55 54 57 58 54 53 56 57 53 52 54 56
RH 58 71 87 87 55 68 81 83 61 70 83 90 63 70 90 86 53 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC FW SC SC B1 B1 B1 B1 B1 SC SC SC FW FW FW
POP 12HR 30 0 5 10 20 20 20 10 10
RAIN SHWRS SC SC IS IS IS IS 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