alarms don't turn off

I think I've set the flags properly but the alarms keep sounding, shouldn't they turn off after 1 alert?

//+------------------------------------------------------------------+
//|                                     Daily 2LWMAs TP SL Diff.mq4 |
//|                      Copyright © 2009, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

#property indicator_chart_window

int scaleX=5,
    scaleY=5,
    offsetX=0,
    offsetY=0,
    fontSize=10,
    corner=2,
    symbolCodeBuy=233, // a symbol code for a buy signal
    symbolCodeSell=234, // sell signal
    symbolCodeNoSignal=183; // no signal
           
extern color signalBuyColor=Green, // color of the symbol of a buy signal
             signalSellColor=Red, // for a sell signal
             noSignalColor=Gray, // no signal
             textColor=Black; // color of all writings
             
ObjectCreate("highLWMA",OBJ_HLINE,0,0,0);
ObjectCreate("lowLWMA",OBJ_HLINE,0,0,0);
double varBiasDirection = 0;
int DailyAlert = 0;
             
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
//----

   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   
   if (Hour() == 0 && DailyAlert == 1) {
      int DailyAlert = 0;
   }
   
   double  varHigh = iMA(NULL, PERIOD_D1, 2, 0, MODE_LWMA, PRICE_HIGH, 0);
   double  varLow = iMA(NULL, PERIOD_D1, 2, 0, MODE_LWMA, PRICE_LOW, 0);
   double HAvalHigh=iCustom(NULL, PERIOD_D1, "Heiken Ashi",Red,Blue,Red,Blue,0,0); //high ExtMapBuffer1
   double HAvalLow=iCustom(NULL, PERIOD_D1, "Heiken Ashi",Red,Blue,Red,Blue,1,0); //low ExtMapBuffer2
   double HAvalOpen=iCustom(NULL, PERIOD_D1, "Heiken Ashi",Red,Blue,Red,Blue,2,1); 
   double HAvalClose=iCustom(NULL, PERIOD_D1, "Heiken Ashi",Red,Blue,Red,Blue,3,1); 
   if (HAvalOpen<HAvalClose) varBiasDirection = 1;
   if (HAvalOpen>HAvalClose) varBiasDirection = -1; //bearish

   ObjectSet("highLWMA",OBJPROP_COLOR,LimeGreen);
   ObjectSet("lowLWMA",OBJPROP_COLOR,LimeGreen);
   ObjectSet("highLWMA",OBJ_HLINE,varHigh);
   ObjectSet("lowLWMA",OBJ_HLINE,varLow);
   
   ObjectCreate("signal",OBJ_LABEL,0,0,0,0,0);
   ObjectSet("signal",OBJPROP_CORNER,corner);
   ObjectSet("signal",OBJPROP_XDISTANCE,scaleX+offsetX);
   ObjectSet("signal",OBJPROP_YDISTANCE,scaleY+offsetY);
   ObjectSetText("signal",CharToStr(symbolCodeNoSignal),fontSize,"Wingdings",noSignalColor);
   
   //1 = up
   //0 = neutral
   //-1 = down
   
   if (varBiasDirection == 1) {
      ObjectSetText("signal",CharToStr(symbolCodeBuy),fontSize,"Wingdings",signalBuyColor);
   }
   if (varBiasDirection == 0) {
      ObjectSetText("signal",CharToStr(symbolCodeNoSignal),fontSize,"Wingdings",noSignalColor);
   }
   if (varBiasDirection == -1) {
      ObjectSetText("signal",CharToStr(symbolCodeSell),fontSize,"Wingdings",signalSellColor);
   }
   
   double varavHigh = 9999; //prevent divide by zero
   double varavLow = 9999;
   
   if (varBiasDirection == 1 && (Bid < varLow) && DailyAlert == 0) {
      Alert(Symbol() + " Daily LWMA");
      DailyAlert = 1;
   }
   if (varBiasDirection == -1 && (Bid > varHigh) && DailyAlert == 0) {
      Alert(Symbol() + " Daily LWMA");
      DailyAlert = 1;
   }

if (DailyAlert == 0) string strAlert = "Not yet!";
if (DailyAlert == 1) strAlert = "PA alarm has been triggered";

   Comment (
               "Difference: " + DoubleToStr(varHigh - varLow, 5) +
               "\nHA Range: " + DoubleToStr(HAvalLow, 5) + "  -  " + DoubleToStr(HAvalHigh, 5) +
               "\nHigh: " + DoubleToStr(varHigh, 5) +
               "\nLow: " + DoubleToStr(varLow, 5) +
               "\nSL/TP: " + DoubleToStr((varHigh - varLow)/2, 5) +
               "\nAccount trade size: " + DoubleToStr(AccountBalance()*0.0001, 2) +
               "\nLot size: " + DoubleToStr((AccountBalance()*0.0001)/(MarketInfo(Symbol(), MODE_TICKVALUE)),5) +
               "\nDaily Alert: " + strAlert
   );


   
   
//----
   return(0);
  }
//+------------------------------------------------------------------+