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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Sun May 24 2026
VAZ024-242000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
401 AM EDT Sun May 24 2026
Date Sun 05/24/26 Mon 05/25/26 Tue 05/26/26
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 71 63 82 62 82
TEMP 55 56 62 68 70 67 65 65 64 67 74 79 79 74 70 67 66 64 74 79 81 76
DEWPT 54 54 58 61 63 63 63 64 63 65 70 70 71 70 68 66 65 64 71 72 73 71
MAX/MIN RH 77 97 74 100 76
RH 96 93 87 78 78 87 93 97 97 93 87 74 77 87 93 97 97100 90 79 77 85
WIND DIR N N N SE SE SE N N N N SW SW SW N N N N N N S S N
WIND SPD 0 0 0 2 2 1 0 0 0 0 1 2 1 0 0 0 0 0 0 2 1 0
CLOUDS OV B2 B2 B2 B2 B1 OV B1 OV B1 B1 OV OV OV OV B2 OV B2 B2 OV OV B2
CLOUDS(%) 88 87 86 84 73 67 88 61 88 60 67 92 92 94 94 83 88 86 86 95 95 77
VSBY 1 1 4 10 1 6 2 0 1 0 4 3 6 3 2 1 1 1 2 8 9 9
POP 12HR 10 40 90 90 90
DRIZZLE C C
RAIN SHWRS IS IS SC SC SC NM O O O NM NM NM NM O O NM
TSTMS IS SC SC SC IS IS SC SC IS
Obvis PF PF PF PF
MIX HGT <1 <1 1 2 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR E E SE SE SE S SE S SW SW W SW S SW NW W SW W NW W S S
T WIND SPD 2 2 1 2 4 4 2 2 2 6 12 8 8 3 2 1 2 2 5 3 4 12
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 2 2 5 11 2 1 1 1 7 29 27 18 2 1 1 1 2 9 9 11 6
MAX LVORI 8 6 6 4 4 6 7 8 8 6 4 3 3 6 7 9 10 9 5 4 4 5
STABILITY F B B B B F F F F B B B B F F F F B B B B F
CEILING 500 1100 700 300 2700 1400 400 400 800 3400
STA PRES 28.70 28.64 28.62 28.61 28.64 28.62 28.61 28.61 28.63 28.58
Date Wed 05/27/26Thu 05/28/26Fri 05/29/26Sat 05/30/26
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 64 84 64 86 61 82 56 77
TEMP 69 65 83 79 69 66 84 79 67 63 79 74 62 58 73 69
DEWPT 67 65 72 71 66 65 68 68 63 60 61 62 56 54 57 57
RH 93100 70 77 90 97 59 69 87 90 54 66 81 86 57 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC B1 B1 B1 B1 B1
POP 12HR 70 80 20 30 20 30 20 20
RAIN SHWRS NM SC SC O IS IS IS SC IS IS SC IS IS IS IS
TSTMS IS SC IS SC 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