FM 34-81-1 MILITARY WEATHER INTELLIGENCE
1. AVIATION / ROTORCRAFT CAUTION
Gusts: 8.2 kts (Limit: 35 kts) • MVFR
  • Ceiling/Visibility in MVFR: Marginal Visual Flight Rules (Ceiling <= 3,000 ft or Vis <= 5 SM)
2. GROUND MANEUVER GO
Precip: 0 mm/hr • Visibility: 17.9 km
  • Favorable trafficability: Visibility 17.9 km, dry/firm ground conditions
3. DISMOUNTED INFANTRY GO
Thermal Index: 60.3°F / 15.7°C
  • Temperate conditions (60.3°F / 15.7°C): Normal work/rest cycles apply
📡 CURRENT SURFACE TELEMETRY
Ambient Temp
15.9°C
60.6°F
Apparent Temp
15.7°C
60.3°F
Wind Gusts
8.2 kts
15.1 km/h
Sustained Wind
3.5 kts
227° Dir
Flight Category
MVFR
FAA / Military Std
Visibility
11.12 SM
17.9 km
Cloud Base
UNL ft
94% Low Deck
Relative Humidity
81%
1008.2 hPa
📊 24-HOUR TACTICAL TREND ANALYSIS
Tactical Trend Chart for Joint Base Lewis-McChord
🎙️ PIPER TTS TACTICAL AUDIO DISPATCH
Download WAV
📋 BLUF STAFF BRIEFING (PLAINTEXT)
WEATHER INTELLIGENCE BRIEFING — JOINT BASE LEWIS-MCCHORD
DTG: 050405Z SEP 26
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1. AVIATION / ROTORCRAFT — [CAUTION]
   • Gusts: 8.2 kts (Limit: 35 kts)
   • Flight Category: MVFR (Ceiling: 1,500 ft AGL | Visibility: 11.12 SM)
   • Note: Ceiling/Visibility in MVFR: Marginal Visual Flight Rules (Ceiling <= 3,000 ft or Vis <= 5 SM)

2. GROUND MANEUVER — [GO]
   • Trafficability: Firm / Favorable | Precip: 0.0 mm/hr (24h: 1.0 mm)
   • Visibility: 17.9 km | Wind: 6.4 km/h
   • Note: Favorable trafficability: Visibility 17.9 km, dry/firm ground conditions

3. DISMOUNTED INFANTRY — [GO]
   • Thermal Index: 60.3°F / 15.7°C (Green / Low Thermal Stress)
   • Lightning / Severe Hazard: None Observed
   • Note: Temperate conditions (60.3°F / 15.7°C): Normal work/rest cycles apply
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OBSERVATION TIME: 2026-09-05T04:05:25.973825+00:00
OVERALL OPERATIONAL POSTURE: [CAUTION]