EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Thu May 21 2026
MDZ022-220800-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 PM EDT Thu May 21 2026
Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun
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 56 59 53 63 60
TEMP 62 59 58 57 58 58 57 56 55 54 55 55 57 59 61 62 62 63 64 66 66
DEWPT 53 53 54 54 53 53 53 53 52 54 54 53 55 57 58 59 60 62 63 63 65
MAX/MIN RH 89 83 99 91 99
RH 72 81 86 88 83 83 86 90 91 99 95 93 95 94 91 92 94 97 97 92 96
WIND DIR NE NE NE NE NE NE NE NE E E E E E E E E E E SE SE S
WIND DIR DEG 05 05 05 05 05 05 06 06 07 07 07 07 07 07 07 08 08 09 11 14 17
WIND SPD 11 9 8 8 8 9 11 12 10 10 10 10 10 11 11 11 9 6 5 4 3
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUDS(%) 92 99 98 99 98 90 94 93 91 93 92 93 90 90 90 90 89 92 93 93 88
VSBY 7 7 6 7 7 3 3 3 4 5 5 6 6 6 6 6 6 6 6 6 6
POP 12HR 80 90 90 80 90
QPF 12HR 0.35 0.31 0.22 0.05 0.22
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C L L D D D L D D D D L L D D D D D D D
TSTMS S S S S S S
Obvis PF
MIX HGT 1300 1200 1600 1700 900 1100 1400 1400 900 700
T WIND DIR NE NE E E E E E E E S
T WIND SPD 18 20 25 21 19 19 23 20 12 9
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 18 33 49 41 18 28 39 38 14 9
MAX LVORI 4 5 4 5 5 5 4 5 8 6
STABILITY D D C D D D D D D E
CEILING 2900 2900 1700 1000 1000 1000 300 1000 300 300
PRESSURE 30.13 30.13 30.20 30.21 30.26 30.23 30.26 30.26 30.22 30.14
Date 05/24Mon 05/25/26Tue 05/26/26Wed 05/27/26Thu 05/28/26
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 77 63 72 63 73 62 81 62 78
TEMP 75 74 67 66 71 69 66 66 73 69 65 67 79 74 67 67 77 70
DEWPT 67 66 65 65 67 65 64 64 64 63 62 63 62 62 60 60 58 58
MIN/MAX RH 74 96 83 99 74 96 54 83 50
RH 76 76 92 98 86 88 93 93 74 81 91 87 56 66 78 79 52 66
WIND DIR SW SE E SE S SE SW N SE S N NW W SW W N N E
WIND SPD 4 3 2 2 4 3 1 1 3 2 0 1 3 2 1 3 5 3
AVG CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC
POP 12HR 80 60 60 70 50 40 20 20 20
RAIN SHWRS D C C L C L L C C C C C S S S S S
TSTMS S C S S S
$$
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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