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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Tue Jul 1 2025
VAZ046-020800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
802 PM EDT Tue Jul 1 2025
Date 07/01/25 Wed 07/02/25 Thu 07/03/25 Fri
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 69 83 68 88 69
TEMP 73 72 71 71 75 78 81 78 71 70 68 71 83 87 87 82 74 71 69 72
DEWPT 73 72 71 71 73 73 72 73 71 70 68 70 69 67 68 70 68 67 65 67
MIN/MAX RH 100 75 100 51 88
RH 100100100100 94 85 74 85100100100 97 63 52 53 67 82 87 87 84
WIND DIR SW S SW SW W N NE E SW W NW NW NW NW NW N N N N N
WIND SPD 5 5 5 3 4 4 3 2 2 2 2 3 4 5 4 2 2 2 3 3
CLOUDS OV B2 B2 B2 B2 B1 SC FW SC FW FW FW CL FW FW FW SC FW FW FW
CLOUDS(%) 90 83 83 82 86 66 39 22 29 25 24 16 4 9 10 20 27 20 13 7
VSBY 7 5 6 5 9 10 10 10 10 8 7 10 10 10 10
POP 12HR 80 80 5 0 0
RAIN SHWRS O NM NM O SC SC SC
TSTMS O NM NM O SC SC SC
MIX HGT <1 1 <1 <1 2 3 2 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR SW SW S SW W NW N S S SW NW NW N NW W SE
T WIND SPD 6 3 6 11 9 3 4 5 3 2 2 1 6 3 2 1
DISPERSION PR PR PR VP VP VP VP VP VP VP VP
ADI 5 2 5 9 20 11 14 3 2 1 1 1 38 25 18 1
MAX LVORI 9 9 9 8 5 4 4 5 10 10 10 8 1 2 2 4
STABILITY E E E C C C A G G G G A A A A G
CEILING 4300 200 700 None None None None None None
STA PRES 29.19 29.19 29.20 29.17 29.20 29.24 29.28 29.26
Date 07/04Sat 07/05/25Sun 07/06/25Mon 07/07/25Tue 07/08/25
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 87 67 88 67 88 70 90 71 92
TEMP 87 80 70 71 87 80 70 71 87 82 72 72 89 83 74 74 91 83
DEWPT 67 68 64 67 67 69 66 67 68 70 67 68 71 73 70 71 72 73
RH 52 67 81 87 52 69 87 87 53 67 84 87 56 72 87 90 54 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC B1
POP 12HR 0 0 5 5 5 10 20 10 30
RAIN SHWRS IS SC
TSTMS 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
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