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// Station · 9m ago

DTTB

Bizerte Sidi Ahmed Air Base
CAT VFR
WIND 110° / 11 kt
VIS 6+ SM
CEILING CLR
T/Td 42°C / 13°C
ALTIM 29.83 inHg
ELEV 20 FT
37.2424°N / 9.7870°E
LOCATION · Borj Challouf, TN
N
WIND
110°11 kt
DTTB · 20 FT
© OSM · CartoDB

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
110°/11
 
 
 
VIS
6+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
42 / 13
 
 
 
ALTIM
29.83"
 
 
 

// Interpretation

VFR with moderate winds at 110°/11 kt. Visibility 6+ SM and no reported cloud layers. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR DTTB 111300Z 11011KT CAVOK 42/13 Q1010 RMK SIROCCO

DTTB · day 11 at 13:00 UTC · wind from 110° at 11 kt · visibility 6+ SM · temp 42°C / dewpoint 13°C · altimeter 29.83" Hg

// Runway analysis · computed from current METAR wind

Wind 110° @ 11 kt
2 USABLE · 2 AVOID
N
WIND
110°11 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
11 HDG 110° H11 kt X0 kt PRIMARY · 3,975'
08 HDG 080° H10 kt X5 kt RIGHT 9,845'
TAILWIND ENDS · AVOID 2 ends
26 HDG 260° T10 kt X5 kt LEFT
29 HDG 290° T11 kt X0 kt
Pattern altitude: 1,020 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +27°C

3,400FT
+3,380 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +900 FT
3,800 2,250 700
24h AGO18h12h6hNOW
FIELD ELEV20 FT OAT+42°C ISA DELTA+27°C PRESSURE ALT115 FT
// Performance equivalent Your aircraft will perform as if it's at a field 3,400 ft high on a standard ISA day — that's +3,380 ft above DTTB's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+34%
-24%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+24%
-15%
Light jetCJ4, Phenom 300, M2
+14%
-10%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 21,232 FT DTTB ELEV · 20 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL21,232 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+1)

04:10ZSUNRISE
11:27ZSOLAR NOON
18:44ZSUNSET
19:14ZCIVIL END
CURRENT13:09Z DAYLIGHT REMAINING5h 34m VFR NIGHT BEGINS19:14Z (6h 04m) DAY LENGTH14h 33m
Waning Crescent
ILLUMINATION11% MOONRISE01:32Z MOONSET16:05Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

// Area map · 120 NM radius · CartoDB Dark Matter + aeronautical overlay

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