National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Sun May 10 2026

VAZ018-110800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
301 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                 51          64          40          73          51
TEMP          75 68 61 56 54 53 55 59 63 58 50 45 43 47 64 70 72 64 54 52 51 55
DEWPT         49 51 51 50 49 48 49 48 45 42 38 35 35 36 40 39 39 41 40 39 39 43
MIN/MAX RH                   85          53          82          29          63
RH            40 54 70 80 83 83 80 67 52 55 63 68 73 65 41 32 30 43 59 61 63 64
WIND DIR       W  W NW NW  N  N NE  N NW  N NW  N NW  N  W SW SW  S  S  S SW SW
WIND SPD      10  3  2  1  1  2  2  3  5  3  1  0  1  0  2  3  3  2  1  3  3  5
WIND GUST        16          12       16 14                            14 17 21
CLOUDS        SC SC SC SC B2 OV OV B2 SC FW FW CL FW CL FW FW FW FW FW FW SC B1
CLOUDS(%)     36 32 39 43 73100100 81 46 12 10  5  9  4 10 12 16 20 20 19 31 64
VSBY          10 10 10  5  2  6  7  9  9  9  9  9  9 10 10 10 10 10 10 10 10 10
POP 12HR                     60          60           0           0           5
RAIN SHWRS                SC SC SC                                           SC
Obvis                     PF                                                   
MIX HGT        7 <1 <1 <1 <1  1  2  4  6 <1 <1 <1 <1  1  5  6  7 <1            
T WIND DIR     W NW NW  N NE NE NE NE NW  S  W NW NW NE  W  W  W  S            
T WIND SPD    18 17  3  3  9 12 10  3  5  3  2  3  3  4  6  5  8  5            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI          143  8  2  2  4 17 22 15 40  2  1  2  2  6 44 43 64  3            
MAX LVORI      1  2  3  4  5  4  3  3  1  3  3  3  3  3  1  1  1  2            
STABILITY      B  G  G  F  F  D  D  B  A  G  G  G  G  A  A  A  A  G            
CEILING              None  1200   100  None  None  None  None  None  None      
STA PRES            27.81 27.84 27.92 27.87 27.91 27.94 27.97 27.90            


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       72      49      65      44      75      55      84      61      86
TEMP          68 64 52 51 63 58 47 48 71 66 56 58 81 75 63 64 84 78
DEWPT         53 50 45 44 41 39 37 39 41 44 43 47 53 54 51 54 55 56
RH            59 60 77 77 44 49 68 71 34 45 62 67 38 48 65 70 37 47
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B1 FW FW SC FW CL FW SC SC SC SC SC SC FW FW FW
POP 12HR           60      30       0       0       0      10      10      10      10
RAIN SHWRS    SC NM 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