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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
402 PM EDT Mon Jun 30 2025
NCZ005-010800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
402 PM EDT Mon Jun 30 2025
Date 06/30/25 Tue 07/01/25 Wed 07/02/25 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 72 87 69 85 68
TEMP 87 82 78 75 73 75 83 85 82 77 73 71 70 71 78 82 82 79 74 71 69 72
DEWPT 73 73 72 72 71 73 75 74 75 74 73 71 70 71 73 73 73 73 72 71 69 68
MIN/MAX RH 95 70 100 74 99
RH 63 74 82 90 93 94 77 70 79 90100100100100 85 74 74 82 93100100 87
WIND DIR SW SW S SW SW SW SW SW SW SW SW SW SW W W W S S SW W NW NW
WIND SPD 8 5 5 5 5 6 8 9 8 5 3 3 3 3 4 3 3 2 2 2 2 2
CLOUDS B1 B1 SC SC FW SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 FW SC FW FW FW
CLOUDS(%) 55 55 31 29 22 46 54 57 69 82 87 84 62 59 54 59 59 25 30 16 18 7
VSBY 7 10 7 10 10 10 7 7 3 10 8 7 8 7
POP 12HR 20 80 70 40 10
RAIN SHWRS IS IS SC SC NM NM NM SC SC SC SC SC SC
TSTMS IS IS SC NM SC SC IS IS IS IS SC SC
MIX HGT 4 <1 <1 <1 <1 1 3 4 3 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR S S S S S SW SW SW SW W SW S NW N N SW SW S
T WIND SPD 17 8 6 6 6 12 12 17 17 8 17 3 8 1 2 2 5 10
DISPERSION PR PR PR PR PR VP VP VP VP VP VP VP
ADI 66 5 3 3 3 20 43 67 56 5 8 2 4 1 7 11 26 5
MAX LVORI 1 3 5 6 6 5 3 3 3 6 8 10 9 10 4 4 3 4
STABILITY C E F F F B C C C E F F F B C B B G
CEILING None None None 3400 900 300 None None None
STA PRES 29.24 29.24 29.25 29.17 29.21 29.21 29.21 29.18
Date 07/03Fri 07/04/25Sat 07/05/25Sun 07/06/25Mon 07/07/25
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 90 68 90 67 90 69 90 70 90
TEMP 87 82 71 72 88 82 71 72 88 82 72 73 88 83 73 74 88 81
DEWPT 68 69 65 67 68 70 67 69 70 70 67 69 71 71 69 70 72 70
RH 53 65 81 84 52 67 87 90 55 67 84 87 57 67 87 87 59 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC B1
POP 12HR 5 0 5 5 10 5 10 10 30
RAIN SHWRS SC
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
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