EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Tue Aug 18 2026
MDZ022-182000-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 AM EDT Tue Aug 18 2026
Date Tue 08/18/26 Wed 08/19/26 Thu 08/20/26
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 87 69 87 71 86
TEMP 75 82 86 84 79 74 73 71 72 82 85 86 79 73 73 73 74 81 85 85 76
DEWPT 75 75 74 74 74 72 71 69 70 69 67 67 69 69 70 70 73 73 73 73 73
MIN/MAX RH 68 99 52 94 65
RH 100 79 68 72 85 94 94 92 93 65 55 53 71 87 90 92 97 77 67 67 91
WIND DIR NW N N N SE S NW NW NW W W SW S S S SW SW S S S S
WIND DIR DEG 33 34 34 01 12 15 29 30 32 27 25 21 17 18 19 21 21 19 18 17 16
WIND SPD 3 4 4 4 2 1 1 2 1 3 3 3 2 3 2 2 2 4 4 4 2
CLOUDS B2 SC SC B2 SC FW FW SC SC FW FW CL FW FW FW FW B1 B1 B2 B2 B2
CLOUDS(%) 70 41 47 77 41 16 19 40 40 23 16 5 7 6 11 22 59 59 82 82 86
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 4 4 4
POP 12HR 20 5 0 5 70
QPF 12HR 0.07 0 0 0 0.54
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C L L D
TSTMS S S S C C C
MIX HGT 4100 3800 500 500 5000 4600 400 600 3000 2300
T WIND DIR NW N S N NW SW S NW N N
T WIND SPD 8 6 2 2 2 6 4 6 8 4
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 36 30 2 2 36 40 2 11 24 16
MAX LVORI 5 5 10 10 7 3 6 8 4 3
STABILITY A A F F A A F F B C
CEILING 8300 2400 30000 300 6900 3200 30000 4000 12200 4000
PRESSURE 29.82 29.80 29.84 29.84 29.88 29.86 29.87 29.87 29.90 29.85
Date Fri 08/21/26Sat 08/22/26Sun 08/23/26Mon 08/24/26
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 69 83 68 82 68 84 65 82
TEMP 73 70 81 77 71 72 80 76 71 71 81 77 69 68 80 75
DEWPT 73 70 73 72 71 72 74 73 71 71 72 70 67 67 66 65
MAX/MIN RH 100 77 100 79 100 67 99 60
RH 99100 77 85100100 82 90100100 74 79 94 97 62 71
WIND DIR W N NE E E S SW SE S SW W SW W W W SW
WIND SPD 2 3 3 3 1 3 4 3 2 3 5 3 3 3 5 2
AVG CLOUDS B2 B2 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC FW
POP 12HR 80 50 70 70 70 40 20 5
RAIN SHWRS D L C C L L L L L C C C S
TSTMS C C C C S S S S S
$$
MDZ025-182000-
EXPERIMENTAL ONLY...THIS PRODUCT IS FOR PLANNING AND REVIEW PURPOSES ONLY AND
IS NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT
FORECAST.
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 HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
RELATIVE TO DUE NORTH.
EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
VSBY................................VISIBILITY VALUE IN STATUTE MILES
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
O..............OCCASIONAL
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
AF.............VOLCANIC ASHFALL
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISPERSION....................SMOKE DISPERSION CATEGORY
VALUES: VP = VERY POOR; PR = POOR; FR = FAIR; GD = GOOD
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
PRESSURE (INCHES MERCURY)...........STATION PRESSURE
MAX LVORI (INDEX)...................LOW VISIBILITY OCCURRENCE RISK INDEX
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
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 DIR............................20 FT. WIND DIRECTION
WIND SPD(MPH).......................20 FT. WIND SPEED
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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