diff --git a/app/diario-bordo.html b/app/diario-bordo.html
index 3b47fe8..da6cfb0 100644
--- a/app/diario-bordo.html
+++ b/app/diario-bordo.html
@@ -3781,6 +3781,16 @@ async function updateStorageInfo(){
       try{refreshGoogleStatus()}catch(e){console.error('[boot] gcal',e)}
     }
     setTimeout(()=>{try{maybeAutoFetchWeather()}catch(e){}},3000);
+    // Pede permissão de notificações (alertas tempestade)
+    setTimeout(async()=>{
+      try{
+        const ln=window.Capacitor?.Plugins?.LocalNotifications;
+        if(ln){await ln.requestPermissions().catch(()=>{})}
+        else if('Notification' in window&&Notification.permission==='default'){
+          await Notification.requestPermission().catch(()=>{});
+        }
+      }catch{}
+    },5000);
     setTimeout(()=>{try{maybeShowWelcome()}catch(e){}},300);
     setTimeout(()=>{try{resumePollingIfPending()}catch(e){}},500);
   }catch(e){
@@ -5586,19 +5596,172 @@ async function fetchWeatherOpenMeteo(lat,lng){
   if(weather.fetching)return;
   weather.fetching=true;
   try{
-    const fUrl=`https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lng}&current=temperature_2m,wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code&hourly=wind_speed_10m,wind_direction_10m,weather_code&forecast_hours=24&wind_speed_unit=kn&timezone=auto`;
-    const mUrl=`https://marine-api.open-meteo.com/v1/marine?latitude=${lat}&longitude=${lng}&current=wave_height,wave_direction,wave_period&hourly=wave_height&forecast_hours=24&timezone=auto`;
+    // Forecast: vento, temp, pressão, lightning (CAPE), gust
+    const fUrl=`https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lng}&current=temperature_2m,wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code,pressure_msl&hourly=wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code,pressure_msl,cape&forecast_hours=24&wind_speed_unit=kn&timezone=auto`;
+    // Marine: ondas + nível do mar (sea_level_height_msl = maré)
+    const mUrl=`https://marine-api.open-meteo.com/v1/marine?latitude=${lat}&longitude=${lng}&current=wave_height,wave_direction,wave_period&hourly=wave_height,sea_level_height_msl&forecast_hours=48&timezone=auto`;
     const[fR,mR]=await Promise.all([fetch(fUrl),fetch(mUrl).catch(()=>null)]);
     const f=await fR.json();
     const m=mR&&mR.ok?await mR.json():null;
     weather.data={provider:'openmeteo',forecast:f,marine:m,fetchedAt:Date.now(),lat,lng};
     weather.lastFetch=Date.now();
     weather.lastPos={lat,lng};
+    weather.tides=extractTides(m);
     renderWeather();
+    checkStormConditions(weather.data,{lat,lng});
   }catch(e){console.warn('weather',e.message)}
   weather.fetching=false;
 }
 
+// Peak detection no array hourly de sea_level_height_msl
+// Retorna { nextHigh: {time, height_m}, nextLow: {time, height_m} }
+function extractTides(marineData){
+  if(!marineData?.hourly?.sea_level_height_msl||!marineData?.hourly?.time)return null;
+  const sl=marineData.hourly.sea_level_height_msl;
+  const ts=marineData.hourly.time;
+  const now=Date.now();
+  const peaks=[]; // {idx, type:'high'|'low', height, time}
+  for(let i=1;i<sl.length-1;i++){
+    if(sl[i]==null||sl[i-1]==null||sl[i+1]==null)continue;
+    const t=new Date(ts[i]).getTime();
+    if(t<now)continue; // só futuros
+    if(sl[i]>sl[i-1]&&sl[i]>sl[i+1])peaks.push({type:'high',height:sl[i],time:t});
+    else if(sl[i]<sl[i-1]&&sl[i]<sl[i+1])peaks.push({type:'low',height:sl[i],time:t});
+  }
+  return{
+    nextHigh:peaks.find(p=>p.type==='high')||null,
+    nextLow:peaks.find(p=>p.type==='low')||null,
+    all:peaks.slice(0,8), // próximas 8 transições (~ 4 ciclos completos)
+  };
+}
+
+// ============ STORM ALERTS ============
+// Limiares — futuros: configuráveis via Settings
+const STORM_THRESHOLDS={
+  windWarn:25,    // nós · vento sustentado
+  windDanger:35,
+  gustWarn:30,
+  gustDanger:45,
+  waveWarn:2.0,   // metros
+  waveDanger:3.5,
+  pressureDropWarn:3, // hPa em 3h
+  capeWarn:1500,  // J/kg · CAPE > 1500 = atmosfera instável (trovoada)
+  capeDanger:3000,
+};
+
+function checkStormConditions(weatherData,pos){
+  if(!weatherData)return;
+  const alerts=[];
+  const f=weatherData.forecast;
+  const m=weatherData.marine;
+  // Vento atual
+  let windKn=null,gustKn=null,pressureNow=null,cape=null;
+  if(weatherData.provider==='openmeteo'){
+    windKn=f?.current?.wind_speed_10m;
+    gustKn=f?.current?.wind_gusts_10m;
+    pressureNow=f?.current?.pressure_msl;
+    // CAPE atual = primeiro valor hourly
+    cape=f?.hourly?.cape?.[0];
+  }else if(weatherData.provider==='windy'){
+    const ms=weatherData.main;
+    const u=ms?.['wind_u-surface']?.[0]??0;
+    const v=ms?.['wind_v-surface']?.[0]??0;
+    windKn=Math.sqrt(u*u+v*v)*1.94384;
+    const gu=ms?.['wind_u-gust-surface']?.[0]??ms?.['gust-surface']?.[0]??0;
+    gustKn=gu*1.94384;
+    pressureNow=ms?.['pressure-surface']?.[0]?ms['pressure-surface'][0]/100:null;
+  }
+  // Wave atual
+  const waveM=m?.current?.wave_height;
+  // Pressão caindo: compara atual com 3h atrás (dado anterior em hourly)
+  let pressureDrop3h=0;
+  if(f?.hourly?.pressure_msl?.length>3){
+    const p0=f.hourly.pressure_msl[0];
+    const p3=f.hourly.pressure_msl[3];
+    if(p0!=null&&p3!=null)pressureDrop3h=p0-p3;
+  }
+  // Avalia condições
+  if(windKn!=null){
+    if(windKn>=STORM_THRESHOLDS.windDanger)alerts.push({level:'danger',title:'Vento crítico',msg:`${windKn.toFixed(0)}kn · evite navegar`});
+    else if(windKn>=STORM_THRESHOLDS.windWarn)alerts.push({level:'warn',title:'Vento forte',msg:`${windKn.toFixed(0)}kn · cuidado`});
+  }
+  if(gustKn!=null&&gustKn>=STORM_THRESHOLDS.gustDanger)alerts.push({level:'danger',title:'Rajadas perigosas',msg:`pico ${gustKn.toFixed(0)}kn`});
+  else if(gustKn!=null&&gustKn>=STORM_THRESHOLDS.gustWarn)alerts.push({level:'warn',title:'Rajadas fortes',msg:`pico ${gustKn.toFixed(0)}kn`});
+  if(waveM!=null){
+    if(waveM>=STORM_THRESHOLDS.waveDanger)alerts.push({level:'danger',title:'Mar perigoso',msg:`ondas ${waveM.toFixed(1)}m`});
+    else if(waveM>=STORM_THRESHOLDS.waveWarn)alerts.push({level:'warn',title:'Mar agitado',msg:`ondas ${waveM.toFixed(1)}m`});
+  }
+  if(pressureDrop3h>=STORM_THRESHOLDS.pressureDropWarn)alerts.push({level:'warn',title:'Pressão caindo',msg:`-${pressureDrop3h.toFixed(1)}hPa em 3h · tempestade aproximando`});
+  if(cape!=null){
+    if(cape>=STORM_THRESHOLDS.capeDanger)alerts.push({level:'danger',title:'Trovoada provável',msg:`CAPE ${Math.round(cape)} J/kg · risco de raios`});
+    else if(cape>=STORM_THRESHOLDS.capeWarn)alerts.push({level:'warn',title:'Atmosfera instável',msg:`CAPE ${Math.round(cape)} · trovoadas isoladas`});
+  }
+  // Salva no state pra UI ler
+  weather.alerts=alerts;
+  // Renderiza banner se alguma
+  renderStormBanner();
+  // Notificação push em alertas novos (compara com último set)
+  const sig=alerts.map(a=>a.level+':'+a.title).join('|');
+  if(alerts.length>0&&sig!==weather._lastAlertSig){
+    weather._lastAlertSig=sig;
+    sendStormNotification(alerts);
+  }else if(alerts.length===0){
+    weather._lastAlertSig='';
+  }
+}
+
+function renderStormBanner(){
+  let banner=document.getElementById('storm-banner');
+  const alerts=weather.alerts||[];
+  if(alerts.length===0){
+    if(banner)banner.remove();
+    return;
+  }
+  if(!banner){
+    banner=document.createElement('div');
+    banner.id='storm-banner';
+    banner.style.cssText='position:fixed;top:0;left:0;right:0;z-index:9000;padding:10px 14px;font-family:var(--f-body);font-size:13px;font-weight:600;text-align:center;cursor:pointer;backdrop-filter:blur(8px)';
+    banner.onclick=()=>{
+      const det=document.getElementById('storm-banner-details');
+      if(det)det.style.display=det.style.display==='block'?'none':'block';
+    };
+    document.body.appendChild(banner);
+  }
+  const worst=alerts.find(a=>a.level==='danger')||alerts[0];
+  const bg=worst.level==='danger'?'rgba(239,68,68,.94)':'rgba(245,158,11,.94)';
+  banner.style.background=bg;
+  banner.style.color='#fff';
+  banner.innerHTML=`⚠ ${worst.title} · ${worst.msg}${alerts.length>1?` (+${alerts.length-1})`:''} · toque pra detalhes
+  <div id="storm-banner-details" style="display:none;margin-top:8px;font-size:11.5px;font-weight:400;text-align:left;line-height:1.6">
+    ${alerts.map(a=>`<div>${a.level==='danger'?'🔴':'🟡'} <strong>${a.title}</strong>: ${a.msg}</div>`).join('')}
+  </div>`;
+}
+
+async function sendStormNotification(alerts){
+  const worst=alerts.find(a=>a.level==='danger')||alerts[0];
+  const title=worst.level==='danger'?'⚠ ALERTA CRÍTICO':'🟡 Aviso meteorológico';
+  const body=alerts.map(a=>`${a.title}: ${a.msg}`).join(' · ');
+  // Capacitor LocalNotifications
+  try{
+    const ln=window.Capacitor?.Plugins?.LocalNotifications;
+    if(ln){
+      await ln.schedule({notifications:[{
+        id:Math.floor(Math.random()*1e9),
+        title,body,smallIcon:'ic_stat_anchor',
+      }]});
+      return;
+    }
+  }catch(e){console.warn('storm notif',e.message)}
+  // Web Notifications API
+  if('Notification' in window){
+    if(Notification.permission==='granted'){
+      try{new Notification(title,{body,icon:'/icon.svg',tag:'storm-alert'})}catch{}
+    }else if(Notification.permission!=='denied'){
+      try{await Notification.requestPermission()}catch{}
+    }
+  }
+}
+
 // Helpers de conversão de unidades
 function uvToSpeedDir(u,v){
   // u: leste-oeste (positivo = leste). v: norte-sul (positivo = norte).
@@ -5624,8 +5787,47 @@ function renderWeather(){
   if(!el)return;
   const d=weather.data;
   if(!d){el.innerHTML='';return}
-  if(d.provider==='windy')return renderWindyWeather(el,d);
-  return renderOpenMeteoWeather(el,d);
+  if(d.provider==='windy')renderWindyWeather(el,d);
+  else renderOpenMeteoWeather(el,d);
+  // Anexa card de marés se tiver dados
+  appendTidesCard(el);
+}
+
+function appendTidesCard(weatherEl){
+  if(!weather.tides||!weather.tides.nextHigh)return;
+  const t=weather.tides;
+  const fmtTide=(p)=>{
+    if(!p)return '—';
+    const d=new Date(p.time);
+    const hh=d.getHours().toString().padStart(2,'0');
+    const mm=d.getMinutes().toString().padStart(2,'0');
+    const diffMin=Math.round((d.getTime()-Date.now())/60000);
+    const inH=diffMin>=60?`em ${Math.floor(diffMin/60)}h${(diffMin%60).toString().padStart(2,'0')}`:`em ${diffMin}min`;
+    return `${hh}:${mm} (${inH}) · ${p.height>=0?'+':''}${p.height.toFixed(2)}m`;
+  };
+  const tidesHtml=`
+    <div style="margin-top:10px;padding:10px;background:var(--m-bg-2,rgba(0,0,0,.15));border-radius:8px;border-left:3px solid var(--m-accent,#06b6d4)">
+      <div style="font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;color:var(--m-text-soft,#7d97ad);text-transform:uppercase;margin-bottom:6px">⚓ Marés (próx. 48h)</div>
+      <div style="display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:13px">
+        <div>
+          <div style="font-size:9px;color:var(--m-text-soft);letter-spacing:.1em">↑ PREAMAR</div>
+          <div style="font-family:var(--f-mono);font-weight:600">${fmtTide(t.nextHigh)}</div>
+        </div>
+        <div>
+          <div style="font-size:9px;color:var(--m-text-soft);letter-spacing:.1em">↓ BAIXAMAR</div>
+          <div style="font-family:var(--f-mono);font-weight:600">${fmtTide(t.nextLow)}</div>
+        </div>
+      </div>
+    </div>`;
+  // Append apenas se ainda não existe
+  if(!weatherEl.querySelector('.tides-block')){
+    const div=document.createElement('div');
+    div.className='tides-block';
+    div.innerHTML=tidesHtml;
+    weatherEl.appendChild(div);
+  }else{
+    weatherEl.querySelector('.tides-block').innerHTML=tidesHtml;
+  }
 }
 
 function renderWindyWeather(el,d){
@@ -6506,7 +6708,7 @@ async function removeBluetoothDevice(id){
   renderBluetoothCard();
 }
 
-const APP_VERSION='1.10.19';
+const APP_VERSION='1.11.0';
 function renderBluetoothCard(){
   const el=document.getElementById('bt-list');
   const supportEl=document.getElementById('bt-support');
diff --git a/mobile/android/app/build.gradle b/mobile/android/app/build.gradle
index fcafd1d..2ec7a35 100644
--- a/mobile/android/app/build.gradle
+++ b/mobile/android/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "br.com.pontualtech.shivao"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 31
-        versionName "1.10.18"
+        versionCode 32
+        versionName "1.11.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
diff --git a/mobile/package.json b/mobile/package.json
index 647b9d7..eed1cb8 100644
--- a/mobile/package.json
+++ b/mobile/package.json
@@ -1,6 +1,6 @@
 {
   "name": "shivao-mobile",
-  "version": "1.10.18",
+  "version": "1.11.0",
   "description": "Shivao app nativo (Capacitor wrapper Android/iOS)",
   "main": "index.js",
   "type": "module",
diff --git a/server/public/index.html b/server/public/index.html
index 3b47fe8..da6cfb0 100644
--- a/server/public/index.html
+++ b/server/public/index.html
@@ -3781,6 +3781,16 @@ async function updateStorageInfo(){
       try{refreshGoogleStatus()}catch(e){console.error('[boot] gcal',e)}
     }
     setTimeout(()=>{try{maybeAutoFetchWeather()}catch(e){}},3000);
+    // Pede permissão de notificações (alertas tempestade)
+    setTimeout(async()=>{
+      try{
+        const ln=window.Capacitor?.Plugins?.LocalNotifications;
+        if(ln){await ln.requestPermissions().catch(()=>{})}
+        else if('Notification' in window&&Notification.permission==='default'){
+          await Notification.requestPermission().catch(()=>{});
+        }
+      }catch{}
+    },5000);
     setTimeout(()=>{try{maybeShowWelcome()}catch(e){}},300);
     setTimeout(()=>{try{resumePollingIfPending()}catch(e){}},500);
   }catch(e){
@@ -5586,19 +5596,172 @@ async function fetchWeatherOpenMeteo(lat,lng){
   if(weather.fetching)return;
   weather.fetching=true;
   try{
-    const fUrl=`https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lng}&current=temperature_2m,wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code&hourly=wind_speed_10m,wind_direction_10m,weather_code&forecast_hours=24&wind_speed_unit=kn&timezone=auto`;
-    const mUrl=`https://marine-api.open-meteo.com/v1/marine?latitude=${lat}&longitude=${lng}&current=wave_height,wave_direction,wave_period&hourly=wave_height&forecast_hours=24&timezone=auto`;
+    // Forecast: vento, temp, pressão, lightning (CAPE), gust
+    const fUrl=`https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lng}&current=temperature_2m,wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code,pressure_msl&hourly=wind_speed_10m,wind_direction_10m,wind_gusts_10m,weather_code,pressure_msl,cape&forecast_hours=24&wind_speed_unit=kn&timezone=auto`;
+    // Marine: ondas + nível do mar (sea_level_height_msl = maré)
+    const mUrl=`https://marine-api.open-meteo.com/v1/marine?latitude=${lat}&longitude=${lng}&current=wave_height,wave_direction,wave_period&hourly=wave_height,sea_level_height_msl&forecast_hours=48&timezone=auto`;
     const[fR,mR]=await Promise.all([fetch(fUrl),fetch(mUrl).catch(()=>null)]);
     const f=await fR.json();
     const m=mR&&mR.ok?await mR.json():null;
     weather.data={provider:'openmeteo',forecast:f,marine:m,fetchedAt:Date.now(),lat,lng};
     weather.lastFetch=Date.now();
     weather.lastPos={lat,lng};
+    weather.tides=extractTides(m);
     renderWeather();
+    checkStormConditions(weather.data,{lat,lng});
   }catch(e){console.warn('weather',e.message)}
   weather.fetching=false;
 }
 
+// Peak detection no array hourly de sea_level_height_msl
+// Retorna { nextHigh: {time, height_m}, nextLow: {time, height_m} }
+function extractTides(marineData){
+  if(!marineData?.hourly?.sea_level_height_msl||!marineData?.hourly?.time)return null;
+  const sl=marineData.hourly.sea_level_height_msl;
+  const ts=marineData.hourly.time;
+  const now=Date.now();
+  const peaks=[]; // {idx, type:'high'|'low', height, time}
+  for(let i=1;i<sl.length-1;i++){
+    if(sl[i]==null||sl[i-1]==null||sl[i+1]==null)continue;
+    const t=new Date(ts[i]).getTime();
+    if(t<now)continue; // só futuros
+    if(sl[i]>sl[i-1]&&sl[i]>sl[i+1])peaks.push({type:'high',height:sl[i],time:t});
+    else if(sl[i]<sl[i-1]&&sl[i]<sl[i+1])peaks.push({type:'low',height:sl[i],time:t});
+  }
+  return{
+    nextHigh:peaks.find(p=>p.type==='high')||null,
+    nextLow:peaks.find(p=>p.type==='low')||null,
+    all:peaks.slice(0,8), // próximas 8 transições (~ 4 ciclos completos)
+  };
+}
+
+// ============ STORM ALERTS ============
+// Limiares — futuros: configuráveis via Settings
+const STORM_THRESHOLDS={
+  windWarn:25,    // nós · vento sustentado
+  windDanger:35,
+  gustWarn:30,
+  gustDanger:45,
+  waveWarn:2.0,   // metros
+  waveDanger:3.5,
+  pressureDropWarn:3, // hPa em 3h
+  capeWarn:1500,  // J/kg · CAPE > 1500 = atmosfera instável (trovoada)
+  capeDanger:3000,
+};
+
+function checkStormConditions(weatherData,pos){
+  if(!weatherData)return;
+  const alerts=[];
+  const f=weatherData.forecast;
+  const m=weatherData.marine;
+  // Vento atual
+  let windKn=null,gustKn=null,pressureNow=null,cape=null;
+  if(weatherData.provider==='openmeteo'){
+    windKn=f?.current?.wind_speed_10m;
+    gustKn=f?.current?.wind_gusts_10m;
+    pressureNow=f?.current?.pressure_msl;
+    // CAPE atual = primeiro valor hourly
+    cape=f?.hourly?.cape?.[0];
+  }else if(weatherData.provider==='windy'){
+    const ms=weatherData.main;
+    const u=ms?.['wind_u-surface']?.[0]??0;
+    const v=ms?.['wind_v-surface']?.[0]??0;
+    windKn=Math.sqrt(u*u+v*v)*1.94384;
+    const gu=ms?.['wind_u-gust-surface']?.[0]??ms?.['gust-surface']?.[0]??0;
+    gustKn=gu*1.94384;
+    pressureNow=ms?.['pressure-surface']?.[0]?ms['pressure-surface'][0]/100:null;
+  }
+  // Wave atual
+  const waveM=m?.current?.wave_height;
+  // Pressão caindo: compara atual com 3h atrás (dado anterior em hourly)
+  let pressureDrop3h=0;
+  if(f?.hourly?.pressure_msl?.length>3){
+    const p0=f.hourly.pressure_msl[0];
+    const p3=f.hourly.pressure_msl[3];
+    if(p0!=null&&p3!=null)pressureDrop3h=p0-p3;
+  }
+  // Avalia condições
+  if(windKn!=null){
+    if(windKn>=STORM_THRESHOLDS.windDanger)alerts.push({level:'danger',title:'Vento crítico',msg:`${windKn.toFixed(0)}kn · evite navegar`});
+    else if(windKn>=STORM_THRESHOLDS.windWarn)alerts.push({level:'warn',title:'Vento forte',msg:`${windKn.toFixed(0)}kn · cuidado`});
+  }
+  if(gustKn!=null&&gustKn>=STORM_THRESHOLDS.gustDanger)alerts.push({level:'danger',title:'Rajadas perigosas',msg:`pico ${gustKn.toFixed(0)}kn`});
+  else if(gustKn!=null&&gustKn>=STORM_THRESHOLDS.gustWarn)alerts.push({level:'warn',title:'Rajadas fortes',msg:`pico ${gustKn.toFixed(0)}kn`});
+  if(waveM!=null){
+    if(waveM>=STORM_THRESHOLDS.waveDanger)alerts.push({level:'danger',title:'Mar perigoso',msg:`ondas ${waveM.toFixed(1)}m`});
+    else if(waveM>=STORM_THRESHOLDS.waveWarn)alerts.push({level:'warn',title:'Mar agitado',msg:`ondas ${waveM.toFixed(1)}m`});
+  }
+  if(pressureDrop3h>=STORM_THRESHOLDS.pressureDropWarn)alerts.push({level:'warn',title:'Pressão caindo',msg:`-${pressureDrop3h.toFixed(1)}hPa em 3h · tempestade aproximando`});
+  if(cape!=null){
+    if(cape>=STORM_THRESHOLDS.capeDanger)alerts.push({level:'danger',title:'Trovoada provável',msg:`CAPE ${Math.round(cape)} J/kg · risco de raios`});
+    else if(cape>=STORM_THRESHOLDS.capeWarn)alerts.push({level:'warn',title:'Atmosfera instável',msg:`CAPE ${Math.round(cape)} · trovoadas isoladas`});
+  }
+  // Salva no state pra UI ler
+  weather.alerts=alerts;
+  // Renderiza banner se alguma
+  renderStormBanner();
+  // Notificação push em alertas novos (compara com último set)
+  const sig=alerts.map(a=>a.level+':'+a.title).join('|');
+  if(alerts.length>0&&sig!==weather._lastAlertSig){
+    weather._lastAlertSig=sig;
+    sendStormNotification(alerts);
+  }else if(alerts.length===0){
+    weather._lastAlertSig='';
+  }
+}
+
+function renderStormBanner(){
+  let banner=document.getElementById('storm-banner');
+  const alerts=weather.alerts||[];
+  if(alerts.length===0){
+    if(banner)banner.remove();
+    return;
+  }
+  if(!banner){
+    banner=document.createElement('div');
+    banner.id='storm-banner';
+    banner.style.cssText='position:fixed;top:0;left:0;right:0;z-index:9000;padding:10px 14px;font-family:var(--f-body);font-size:13px;font-weight:600;text-align:center;cursor:pointer;backdrop-filter:blur(8px)';
+    banner.onclick=()=>{
+      const det=document.getElementById('storm-banner-details');
+      if(det)det.style.display=det.style.display==='block'?'none':'block';
+    };
+    document.body.appendChild(banner);
+  }
+  const worst=alerts.find(a=>a.level==='danger')||alerts[0];
+  const bg=worst.level==='danger'?'rgba(239,68,68,.94)':'rgba(245,158,11,.94)';
+  banner.style.background=bg;
+  banner.style.color='#fff';
+  banner.innerHTML=`⚠ ${worst.title} · ${worst.msg}${alerts.length>1?` (+${alerts.length-1})`:''} · toque pra detalhes
+  <div id="storm-banner-details" style="display:none;margin-top:8px;font-size:11.5px;font-weight:400;text-align:left;line-height:1.6">
+    ${alerts.map(a=>`<div>${a.level==='danger'?'🔴':'🟡'} <strong>${a.title}</strong>: ${a.msg}</div>`).join('')}
+  </div>`;
+}
+
+async function sendStormNotification(alerts){
+  const worst=alerts.find(a=>a.level==='danger')||alerts[0];
+  const title=worst.level==='danger'?'⚠ ALERTA CRÍTICO':'🟡 Aviso meteorológico';
+  const body=alerts.map(a=>`${a.title}: ${a.msg}`).join(' · ');
+  // Capacitor LocalNotifications
+  try{
+    const ln=window.Capacitor?.Plugins?.LocalNotifications;
+    if(ln){
+      await ln.schedule({notifications:[{
+        id:Math.floor(Math.random()*1e9),
+        title,body,smallIcon:'ic_stat_anchor',
+      }]});
+      return;
+    }
+  }catch(e){console.warn('storm notif',e.message)}
+  // Web Notifications API
+  if('Notification' in window){
+    if(Notification.permission==='granted'){
+      try{new Notification(title,{body,icon:'/icon.svg',tag:'storm-alert'})}catch{}
+    }else if(Notification.permission!=='denied'){
+      try{await Notification.requestPermission()}catch{}
+    }
+  }
+}
+
 // Helpers de conversão de unidades
 function uvToSpeedDir(u,v){
   // u: leste-oeste (positivo = leste). v: norte-sul (positivo = norte).
@@ -5624,8 +5787,47 @@ function renderWeather(){
   if(!el)return;
   const d=weather.data;
   if(!d){el.innerHTML='';return}
-  if(d.provider==='windy')return renderWindyWeather(el,d);
-  return renderOpenMeteoWeather(el,d);
+  if(d.provider==='windy')renderWindyWeather(el,d);
+  else renderOpenMeteoWeather(el,d);
+  // Anexa card de marés se tiver dados
+  appendTidesCard(el);
+}
+
+function appendTidesCard(weatherEl){
+  if(!weather.tides||!weather.tides.nextHigh)return;
+  const t=weather.tides;
+  const fmtTide=(p)=>{
+    if(!p)return '—';
+    const d=new Date(p.time);
+    const hh=d.getHours().toString().padStart(2,'0');
+    const mm=d.getMinutes().toString().padStart(2,'0');
+    const diffMin=Math.round((d.getTime()-Date.now())/60000);
+    const inH=diffMin>=60?`em ${Math.floor(diffMin/60)}h${(diffMin%60).toString().padStart(2,'0')}`:`em ${diffMin}min`;
+    return `${hh}:${mm} (${inH}) · ${p.height>=0?'+':''}${p.height.toFixed(2)}m`;
+  };
+  const tidesHtml=`
+    <div style="margin-top:10px;padding:10px;background:var(--m-bg-2,rgba(0,0,0,.15));border-radius:8px;border-left:3px solid var(--m-accent,#06b6d4)">
+      <div style="font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;color:var(--m-text-soft,#7d97ad);text-transform:uppercase;margin-bottom:6px">⚓ Marés (próx. 48h)</div>
+      <div style="display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:13px">
+        <div>
+          <div style="font-size:9px;color:var(--m-text-soft);letter-spacing:.1em">↑ PREAMAR</div>
+          <div style="font-family:var(--f-mono);font-weight:600">${fmtTide(t.nextHigh)}</div>
+        </div>
+        <div>
+          <div style="font-size:9px;color:var(--m-text-soft);letter-spacing:.1em">↓ BAIXAMAR</div>
+          <div style="font-family:var(--f-mono);font-weight:600">${fmtTide(t.nextLow)}</div>
+        </div>
+      </div>
+    </div>`;
+  // Append apenas se ainda não existe
+  if(!weatherEl.querySelector('.tides-block')){
+    const div=document.createElement('div');
+    div.className='tides-block';
+    div.innerHTML=tidesHtml;
+    weatherEl.appendChild(div);
+  }else{
+    weatherEl.querySelector('.tides-block').innerHTML=tidesHtml;
+  }
 }
 
 function renderWindyWeather(el,d){
@@ -6506,7 +6708,7 @@ async function removeBluetoothDevice(id){
   renderBluetoothCard();
 }
 
-const APP_VERSION='1.10.19';
+const APP_VERSION='1.11.0';
 function renderBluetoothCard(){
   const el=document.getElementById('bt-list');
   const supportEl=document.getElementById('bt-support');
diff --git a/server/public/sw.js b/server/public/sw.js
index 1949b26..c996e09 100644
--- a/server/public/sw.js
+++ b/server/public/sw.js
@@ -1,7 +1,7 @@
 // Shivao Service Worker — offline real
 // Estratégia: shell precachado, tiles cache-first, windy network-first, /api passa direto.
 // Versão usada nos cache names — bumpa essa string pra invalidar caches antigos em deploys.
-const VERSION = 'shivao-v1.10.19';
+const VERSION = 'shivao-v1.11.0';
 const SHELL_CACHE = `shivao-shell-${VERSION}`;
 const TILES_CACHE = 'shivao-tiles-v1'; // separado pra não invalidar tiles em update do shell
 const WINDY_CACHE = `shivao-windy-${VERSION}`;
diff --git a/server/src/index.js b/server/src/index.js
index fff6380..5c37fab 100644
--- a/server/src/index.js
+++ b/server/src/index.js
@@ -413,7 +413,7 @@ app.get('/.well-known/assetlinks.json', (req, res) => {
 });
 
 // Atalho: /apk redireciona pra última APK release no Forgejo
-const LATEST_APK_URL = 'https://git.pontualtech.work/karlao/shivao-projeto/releases/download/v1.10.18/Shivao-v1.10.18.apk';
+const LATEST_APK_URL = 'https://git.pontualtech.work/karlao/shivao-projeto/releases/download/v1.11.0/Shivao-v1.11.0.apk';
 app.get('/apk', (req, res) => res.redirect(302, LATEST_APK_URL));
 
 // Página A4 imprimível com QR Code + instruções (cola no barco/marina)