EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Wed May 20 2026
MDZ022-202000-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 AM EDT Wed May 20 2026
Date Wed 05/20/26 Thu 05/21/26 Fri 05/22/26
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 93 67 71 55 62
TEMP 78 86 92 92 82 73 70 68 69 66 66 64 61 60 59 57 57 59 59 58 56
DEWPT 63 64 64 63 65 66 66 65 63 56 54 53 53 53 52 52 52 51 51 51 52
MIN/MAX RH 38 90 64 83 74
RH 61 49 40 38 56 79 87 90 81 70 65 68 76 79 79 83 83 74 75 77 85
WIND DIR SW SW SW SW S NE E NE NE NE NE NE NE NE NE NE E E E E E
WIND DIR DEG 23 24 23 22 18 04 08 04 04 05 05 06 06 05 05 05 07 07 07 07 07
WIND SPD 9 9 8 10 8 5 3 3 6 10 12 12 10 9 9 10 10 10 10 10 9
CLOUDS CL CL CL CL SC SC SC SC B2 OV B2 B2 OV B2 B2 OV B2 OV OV OV OV
CLOUDS(%) 2 1 2 2 40 49 31 49 71 88 76 81 91 86 86 88 87 89 90 89 90
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6
POP 12HR 5 20 40 60 80
QPF 12HR 0 0 0.06 0.03 0.08
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S C C C L L L L D D L
TSTMS S
MIX HGT 6000 6400 800 1300 2200 2400 1200 1700 1800 1700
T WIND DIR W SW E NE NE NE NE NE E E
T WIND SPD 11 11 14 6 23 27 18 23 27 21
SMOKE DISP FR GD PR PR FR FR PR PR FR PR
ADI 69 85 14 20 54 61 19 48 51 46
MAX LVORI 2 3 6 7 3 3 4 4 3 4
STABILITY B B E F D D D D D D
CEILING 30000 27200 30000 8000 1700 1700 1000 1000 1000 1000
PRESSURE 30.01 29.93 29.97 30.01 30.09 30.14 30.18 30.19 30.26 30.23
Date Sat 05/23/26Sun 05/24/26Mon 05/25/26Tue 05/26/26
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 51 68 59 73 61 80 64 81
TEMP 55 54 66 65 61 62 72 69 63 65 78 74 67 67 79 75
DEWPT 54 54 59 59 61 62 64 62 63 64 66 65 64 64 64 63
MAX/MIN RH 99 75 100 71 100 62 98 56
RH 97100 78 81100100 76 78 99 97 67 74 91 90 60 67
WIND DIR E E E E E NE E E E S SW S S W NW SE
WIND SPD 6 8 8 4 2 3 5 3 3 3 5 3 1 3 4 3
AVG CLOUDS OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR 80 70 70 40 40 50 40 40
RAIN SHWRS L D L L L L C C C C C C C C S C
TSTMS S C S S S S S
$$
MDZ025-202000-
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