National Weather Service United States Department of Commerce

Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon Aug 3 2026

NCZ003-032000-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
131 PM EDT Mon Aug 3 2026

Date             Mon 08/03/26            Tue 08/04/26            Wed 08/05/26
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                 83          67          79          67          81
TEMP                   80 80 76 71 68 67 69 74 76 78 75 70 69 68 69 74 78 80 76
DEWPT                  72 73 73 70 68 67 69 72 73 73 72 70 69 68 69 73 74 74 74
MAX/MIN RH                   76         100          85         100          84
RH                     77 79 90 97100100100 93 90 85 90100100100100 97 88 82 94
WIND DIR                S NE  N  N NW  N NE  E  E  E  E  N  N  N  N  S  S  S  S
WIND SPD                2  2  0  1  1  1  2  4  4  3  1  0  0  0  0  2  4  4  1
CLOUDS                 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV B1
CLOUDS(%)              71 68 51 54 62 71 71 77 75 73 79 82 77 75 75 75 90 90 62
VSBY                   10 10 10  9  6  3  9 10 10  9  8  6  7  7  7            
POP 12HR                     50          30          70          70          90
RAIN SHWRS             SC SC SC IS IS IS    SC NM NM NM NM SC SC SC SC  O  O SC
TSTMS                  SC SC SC IS          IS SC SC SC IS          IS SC SC IS
MIX HGT                 4  3 <1 <1 <1 <1 <1  2  2  2 <1 <1 <1 <1 <1  2  2  2 <1
T WIND DIR             SW  W  N NW  N  E  E  E  E  E  E  E NE  E  E SE SE  S  S
T WIND SPD              2  4  3  3  5 11 14 14 10  8  6  4  2  2  3  4  8  9  6
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                    12 16  2  2  3  5 16 38 30 21  3  2  1  1  4 10 22 25  3
MAX LVORI               4  4  7  8  9  9  5  4  4  4  6  9 10 10  9  7  4  4  6
STABILITY               B  B  F  F  F  F  B  C  C  B  F  F  F  F  B  B  C  C  F
CEILING                    2700  None  2200  1800  2100  2100  1700  1400  2200
STA PRES                  27.99 28.05 28.11 28.18 28.19 28.21 28.21 28.25 28.22


Date          Thu 08/06/26Fri 08/07/26Sat 08/08/26Sun 08/09/26
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       67      83      67      83      67      83      67      84
TEMP          69 70 81 76 70 69 80 77 70 70 81 77 70 69 82 77
DEWPT         69 70 75 74 70 69 75 74 70 70 74 74 69 69 74 74
RH           100100 82 94100100 85 90100100 79 90 97100 77 90
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 B2 B1 B1 B2 B2 B1 SC SC B2 B1 SC SC B2
POP 12HR           30      70      30      60      30      60      20      60
RAIN SHWRS    SC    IS NM SC    SC NM SC    IS NM IS    IS NM
TSTMS         IS    IS SC IS       SC SC    IS SC IS    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