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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