669  
FXUS63 KDVN 222015  
AFDDVN  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
315 PM CDT MON JUL 22 2019  
   
SYNOPSIS
 
 
ISSUED AT 310 PM CDT MON JUL 22 2019  
 
HIGH PRESSURE CENTERED IN THE NORTHERN PLAINS BRINGING A  
DELIGHTFUL DAY TO THE DVN CWA. OTHER THAN SCT HIGH-BASED CU THERE  
WAS PLENTY OF SUNSHINE ALONG WITH TEMPERATURES IN THE MID 70S TO  
AROUND 80 AND COMFORTABLE HUMIDITY.  
 

 
   
SHORT TERM
 
(THIS EVENING THROUGH TUESDAY)  
ISSUED AT 310 PM CDT MON JUL 22 2019  
 
TONIGHT: HIGH PRESSURE BRINGING VERY COMFORTABLE WEATHER IN THE  
SHORT TERM. WITH CLEAR SKIES, A DRY AIRMASS AND LIGHT WINDS GOOD  
RADIATIONAL COOLING SHOULD DROP TEMPERATURES INTO THE UPPER 50S AT  
MOST LOCATIONS. THESE READINGS ARE SIMILAR TO WHAT WAS OBSERVED IN  
CENTRAL/SOUTHERN MN LAST NIGHT.  
 
TUESDAY: HIGH PRESSURE IN CONTROL SO PLENTY OF SUNSHINE WITH  
AFTERNOON TEMPERATURES RISING INTO THE LOWER 80S, BUT DEWPOINTS  
WILL BE COMFORTABLE IN THE UPPER 50S.  
   
LONG TERM
 
(TUESDAY NIGHT THROUGH MONDAY)  
ISSUED AT 310 PM CDT MON JUL 22 2019  
 
A MAINLY DRY AND WARM PERIOD BUT NOTHING EXTREME.  
 
TUESDAY NIGHT: AN UPPER LEVEL DISTURBANCE RIDING SOUTHEAST IN THE  
EASTERN TROUGH MAY TRIGGER ISOLATED SHOWERS OR STORMS IN NORTHERN  
IL IN THE EVENING HOURS. THE NAMNEST SUGGESTS THIS BUT THE HRRR  
KEEPS IT IN NORTHEAST IL. CONFIDENCE IS LOW HAVING ANY STORMS AS  
FAR WEST AS THE DVN CWA SO WILL KEEP IT DRY FOR NOW AND LET LATER  
SHIFTS MONITOR THE MODEL TRENDS.  
 
WEDNESDAY THROUGH FRIDAY: DRY AND WARM WITH NEAR NORMAL  
TEMPERATURES WITH THE AREA UNDER A NORTHWEST FLOW AND SPRAWLING  
HIGH PRESSURE AT THE SURFACE. HIGHS WILL BE IN THE 80S WITH LOWS  
IN THE 60S.  
 
SATURDAY THROUGH MONDAY: FLOW BECOMES MORE ZONAL ALLOWING THE HEAT  
AND HUMIDITY TO RETURN, BUT NOTHING LIKE THE HEAT WAVE WE RECENTLY  
HAD. (H8 TEMPERATURES ARE PROGGED AT +20C INSTEAD OF THE +27  
DURING THE HEAT WAVE). TEMPERATURES LOOK TO PUSH TO AROUND 90  
WITH LOWS IN THE 60S. GFS/ECMWF SIMILAR IN BRINGING A COLD FRONT  
INTO THE AREA NEXT MONDAY WITH THE POTENTIAL FOR THUNDERSTORMS.  
 

 
   
AVIATION
 
(FOR THE 18Z TAFS THROUGH 18Z TUESDAY AFTERNOON)  
ISSUED AT 1153 AM CDT MON JUL 22 2019  
 
VFR CONDITIONS EXPECTED THIS TAF CYCLE WITH SCATTERED LOW TO MID  
LEVEL CU DIMINISHING BY SUNSET. NORTH WINDS GUSTING TO NEAR 20  
KTS WILL SUBSIDE AND SHIFT TO THE NORTHWEST THIS EVENING.  
 

 
   
DVN WATCHES/WARNINGS/ADVISORIES
 
 
IA...NONE.  
IL...NONE.  
MO...NONE.  

 
 

 
 
SYNOPSIS...HAASE  
SHORT TERM...HAASE  
LONG TERM...HAASE  
AVIATION...SPECK  
 
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