EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Thu May 21 2026
MDZ022-212000-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 AM EDT Thu May 21 2026
Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26
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 70 53 61 52 66
TEMP 70 71 70 66 60 58 57 56 57 57 58 57 56 56 55 54 57 60 62 64 63
DEWPT 64 60 56 55 54 54 54 54 55 55 54 53 53 53 54 53 56 58 59 59 61
MIN/MAX RH 62 96 86 99 86
RH 83 68 62 68 81 87 89 94 95 92 86 86 90 91 96 96 96 92 90 86 92
WIND DIR NE NE NE NE NE NE NE NE NE NE NE NE NE E E E E E E E E
WIND DIR DEG 05 05 05 05 06 05 06 06 06 06 06 06 06 07 07 07 07 07 07 07 08
WIND SPD 8 10 12 12 10 6 8 9 10 11 11 12 10 9 8 9 10 10 10 9 6
CLOUDS B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV B2 OV OV B2 OV
CLOUDS(%) 72 85 86 89 93 94 94 95 90 88 91 93 92 92 92 91 87 89 88 87 94
VSBY 9 9 9 7 6 5 5 5 4 5 6 6 6 6 6 6 6 6 6 6 6
POP 12HR 50 70 90 90 80
QPF 12HR 0.01 0.10 0.22 0.04 0.04
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C S C C L L L C L D D D D D D L L D D D
TSTMS S S C
MIX HGT 2000 2000 1300 1500 1800 1700 1100 1100 1600 1500
T WIND DIR NE NE NE E E E E E E NE
T WIND SPD 20 20 18 21 27 25 19 17 17 16
SMOKE DISP PR PR PR PR FR FR PR PR PR PR
ADI 42 42 18 40 55 53 18 26 32 30
MAX LVORI 3 3 5 5 4 4 5 5 4 5
STABILITY D D D D D D D D D C
CEILING 3200 2400 1000 1000 1000 1000 1000 1000 300 300
PRESSURE 30.07 30.09 30.13 30.17 30.20 30.21 30.19 30.17 30.20 30.17
Date Sun 05/24/26Mon 05/25/26Tue 05/26/26Wed 05/27/26
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 59 77 62 78 64 78 62 81
TEMP 63 66 74 72 66 66 77 74 69 68 77 73 66 67 78 74
DEWPT 63 65 66 64 62 65 66 65 65 65 64 63 62 63 62 61
MAX/MIN RH 100 73 97 65 94 60 92 52
RH 100 97 76 76 87 97 69 74 87 91 64 71 88 88 57 64
WIND DIR E SE W E E SE S S W N NE S SW NW NW S
WIND SPD 3 3 4 3 2 3 5 3 1 2 3 2 0 1 3 2
AVG CLOUDS OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1
POP 12HR 90 60 30 60 60 40 30 20
RAIN SHWRS D D L C C C C L L C C C C C S S
TSTMS C C S S S S S
$$
MDZ025-212000-
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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