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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EDT Sun May 10 2026
NCZ006-110800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1001 PM EDT Sun May 10 2026
Date 05/10/26 Mon 05/11/26 Tue 05/12/26 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 57 64 42 75 51
TEMP 65 62 58 57 62 60 58 56 51 47 45 47 63 72 74 68 57 54 51 55
DEWPT 50 50 53 48 43 48 49 48 46 45 43 45 48 44 43 46 44 44 46 49
MIN/MAX RH 83 51 100 33 84
RH 58 65 83 72 50 64 72 74 83 93 93 93 58 37 33 45 62 69 83 80
WIND DIR SW NW NE NE NE N N NE N N N N NE E S SE S S S S
WIND SPD 3 2 6 9 11 11 6 4 3 3 2 1 2 2 1 1 2 3 4 5
WIND GUST 21
CLOUDS SC SC B1 B2 OV OV OV B2 FW B1 B2 B1 FW FW FW FW CL FW FW SC
CLOUDS(%) 36 42 66 75100 97 94 80 22 52 78 65 8 8 8 11 2 8 9 27
VSBY 10 10 10 9 9 9 8 10 9 8 7 8 10 10 10 10 10 10 10 10
POP 12HR 5 60 10 0 0
RAIN SHWRS SC SC NM SC
MIX HGT <1 <1 <1 2 2 2 2 1 <1 <1 <1 <1 4 7 8 <1
T WIND DIR SW W NE NE NE NE NE N NW SW W N NE W SW S
T WIND SPD 3 2 19 18 19 17 12 4 2 1 1 1 8 1 6 3
DISPERSION VP VP PR VP VP VP VP VP VP VP VP
ADI 2 1 9 40 42 33 28 2 1 1 1 1 36 10 62 2
MAX LVORI 3 3 5 3 1 3 3 5 7 9 10 7 1 2 1 2
STABILITY F G F C D D C F F F F A A A A G
CEILING 6100 2900 700 None 35000 None None None
STA PRES 29.41 29.52 29.51 29.55 29.57 29.61 29.54
Date 05/13Thu 05/14/26Fri 05/15/26Sat 05/16/26Sun 05/17/26
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 78 51 74 46 78 54 87 60 90
TEMP 77 70 57 54 72 68 51 51 74 71 58 59 85 80 66 65 88 83
DEWPT 52 57 55 53 45 44 43 45 44 49 47 50 54 56 55 57 57 58
RH 42 63 93 96 38 42 74 80 34 46 67 72 35 44 68 75 35 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B2 B2 SC FW FW CL CL FW FW FW SC SC SC SC SC FW SC
POP 12HR 50 70 5 0 0 0 5 5 5
RAIN SHWRS SC NM
TSTMS 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