647
FXUS64 KLZK 071749
AFDLZK
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1249 PM CDT MON JUL 7 2025
..NEW AVIATION
KEY MESSAGES
ISSUED AT 105 AM CDT MON JUL 7 2025
-WEAK DISTURBANCES WITHIN NORTHWEST FLOW WILL PROMOTED CHANCES FOR
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGH WEDNESDAY.
-HOT AND HUMID CONDITIONS WILL CONTINUE BUT REMAIN JUST UNDER
CRITERIA AS HEAT INDEX VALUES WILL REMAIN BELOW ADVISORY
CRITERIA.
-TEMPERATURES WILL WARM FURTHER WITH MID TO UPPER 90S THIS WEEKEND
WITH HEAT INDEX VALUES AS HIGH AS 105 BY FRIDAY AND POSSIBLY
THROUGH EARLY NEXT WEEK.
DISCUSSION
ISSUED AT 105 AM CDT MON JUL 7 2025
LATEST SATELLITE AND RADAR SHOWS MID AND HIGH LEVEL CLOUDINESS
OVER PORTIONS OF EASTERN AND NORTHEASTERN ARKANSAS THIS MORNING
ASSOCIATED WITH ISOLATED SHOWERS AND A FEW THUNDERSTORMS. THE PAIR
OF THUNDERSTORMS ARE WITHIN THE PERIPHERY OF A DEEPER MOISTURE
AND THETA E RIDGE CENTERED OVER EASTERN ARKANSAS. SHOWER AND
THUNDERSTORMS ARE VERY SLOWLY MOVING EAST WITH PERIOD OF LOCALLY
HEAVY RAINFALL POSSIBLE OVER WHITE COUNTY THIS MORNING. SHOWERS
AND THUNDERSTORMS WILL GRADUALLY WEAKEN AS THE MOVE EAST AND
LIKELY EXIT THE CWA BEFORE SUNRISE. AS WE HEAD INTO THIS
AFTERNOON, A WEAK SHORTWAVE WILL ROTATE AROUND THE PERIPHERY OF
THE LARGE UPPER LEVEL RIDGE CENTERED OVER THE DESERT SOUTHWEST
THIS AFTERNOON AHEAD OF A COLD FRONT LOCATED OVER PORTIONS OF
CENTRAL AND NORTHWESTERN MISSOURI. THE SHORTWAVE WILL PUSH
SOUTHEAST ACROSS EASTERN AND SOUTHEASTERN KANSAS INTO SOUTHERN
MISSOURI THIS AFTERNOON. THE DISTURBANCE WILL PROVIDE ENOUGH LIFT
TO INITIATE SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WITH THE
HIGHEST CHANCES CLOSER TO THE SHORTWAVE OVER PORTIONS OF NORTHERN
AND CENTRAL ARKANSAS.
BY TONIGHT, THE UPPER LEVEL RIDGE ACROSS THE DESERT SOUTHWEST WILL
STRENGTHEN. AT THE SAME TIME, A CUT OFF LOW/TROUGH OFF THE COAST
OF SOUTHERN CALIFORNIA WILL THEN MOVE NORTHWARD IN RESPONSE TO
INCREASING HEIGHTS OVER THE DESERT SOUTHWEST. BY WEDNESDAY
MORNING, GUIDANCE SHOWS THE TROUGH/CUT OFF LOW BECOMING AN OPEN
SHORT WAVE. AS THE DISTURBANCE MOVES ASHORE IN NORTHERN
CALIFORNIA, THE RIDGE ACROSS THE DESERT SOUTHWEST WILL DEAMPLIFY
AND BEGIN TO FLATTEN. THE SHORT WAVE WILL TREK EASTWARD QUICKLY
ACROSS THE GREAT BASIN INTO CENTRAL PLAINS ON THURSDAY ALONG THE
NORTHERN PERIPHERY OF THE UPPER RIDGE OVER THE DESERT SOUTHWEST
REGION. THIS WILL ALLOW WEAK NORTHWEST FLOW TO CONTINUE WITH WEAK
DISTURBANCES WITHIN THE FLOW TREKKING OVER THE MID SOUTH AND
CENTRAL PLAINS AHEAD OF A FRONTAL BOUNDARY OVER MISSOURI WITH
DIURNAL UPTICK IN SHOWER AND THUNDERSTORMS EACH AFTERNOON ON
WEDNESDAY AND THURSDAY.
FOR FRIDAY THROUGH EARLY NEXT WEEK, UPPER LEVEL RIDGING OVER THE
DESERT SOUTHWEST WILL SLIDE WESTWARD TO INTO FAR SOUTHERN
CALIFORNIA ALONG THE INTERNATIONAL BORDER. BY FRIDAY NIGHT, THE
RIDGE OVER SOUTHERN CALIFORNIA WILL BEGIN TO STRENGTHEN. ON THE
HEELS OF THE FRONT SHORTWAVE, A SECOND SHORTWAVE WILL QUICKLY MOVE
SOUTHEAST OUT OF THE ALBERTA PROVIDENCE OF CANADA. THE SHORT WAVE
WILL MOVE THROUGH THE NORTHERN PLAINS BEFORE MOVING BACK INTO
ONTARIO PROVIDENCE BY SATURDAY NIGHT. THIS WILL KEEP THE STATE IN
NORTHWEST FLOW THROUGH SATURDAY NIGHT WITH SHORTWAVES MOVING
AROUND THE PERIPHERY OF THE TROUGHS MOVING THROUGH THE
NORTHERN/CENTRAL PLAINS. THERE WILL BE ENOUGH ASCENT WITH
SHORTWAVES OVER MISSOURI TO PROMOTE ISOLATED TO SCATTERED SHOWERS
AND ISOLATED SHOWERS THROUGH SATURDAY MAINLY ACROSS NORTH AND
NORTHEAST ARKANSAS. FINALLY, ON SUNDAY INTO MONDAY, UPPER LEVEL
RIDGING BUILDS ACROSS MUCH OF THE MID SOUTH AND SOUTHEAST WITH
TEMPERATURES AS EARLY AS FRIDAY MOVING INTO THE MID TO UPPER 90S
AND PERSISTING THROUGH EARLY NEXT WEEK. THE COMBINATION OF MID TO
UPPER 90S AND DEWPOINTS IN THE LOWER TO MID 70S WILL LEAD TO HEAT
INDEX VALUES AS HIGH AS 105. IF FORECAST TRENDS CONTINUE WITH
THOSE VALUES, THEN HEAT HEADLINES MAY BE NEEDED SOMETIME ON FRIDAY
AND POSSIBLE INTO EARLY NEXT WEEK.
AVIATION
(18Z TAFS)
ISSUED AT 1245 PM CDT MON JUL 7 2025
SCATTERED SHRA/TSRA SHOULD INCREASE IN COVERAGE THROUGH THE
AFTERNOON AND EARLY EVENING ACROSS MOST TERMINALS. MVFR CONDS ARE
POSSIBLE WITHIN CONVECTION, OTHERWISE VFR CONDS SHOULD PREVAIL.
WINDS WILL BE LIGHT AND VARIABLE OUTSIDE OF TSRA ACTIVITY.
CONVECTION SHOULD DIMINISH AFTER SUNSET WITH POTENTLY WIDELY
SCATTERED SHRA LINGERING OVER NRN AR LATER INTO THE EVENING.
PRELIMINARY POINT TEMPS/POPS
BATESVILLE AR 72 90 72 89 / 30 60 30 60
CAMDEN AR 73 93 73 91 / 10 60 20 70
HARRISON AR 70 86 70 87 / 40 60 30 40
HOT SPRINGS AR 73 92 72 91 / 20 70 30 60
LITTLE ROCK AR 75 92 75 91 / 30 70 30 60
MONTICELLO AR 75 93 74 91 / 20 60 20 70
MOUNT IDA AR 72 89 72 90 / 30 70 30 60
MOUNTAIN HOME AR 70 86 70 87 / 30 70 30 50
NEWPORT AR 73 92 73 91 / 30 50 30 60
PINE BLUFF AR 74 92 73 90 / 20 60 20 60
RUSSELLVILLE AR 73 89 72 90 / 40 70 30 50
SEARCY AR 72 91 72 90 / 30 60 30 60
STUTTGART AR 75 92 74 89 / 30 50 30 60
LZK WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM...99
LONG TERM....99
AVIATION...70
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page