104
FXUS01 KWBC 042016
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT TUE JUN 04 2024
VALID 00Z WED JUN 05 2024 - 00Z FRI JUN 07 2024
...A MODERATE RISK OF EXCESSIVE RAINFALL LEADING TO FLASH FLOODING
OVER PARTS OF SOUTHEASTERN OKLAHOMA AND THE ARKLATEX THROUGH
TONIGHT...
...SEVERE THUNDERSTORMS AND HEAVY RAIN POSSIBLE FROM THE LOWER
MISSISSIPPI VALLEY ACROSS THE SOUTH-CENTRAL PLAINS AND THROUGH THE
UPPER MIDWEST THROUGH TONIGHT...
...GROWING EXCESSIVE HEAT CONCERNS OVER PORTIONS OF CALIFORNIA'S
CENTRAL VALLEY REGION AS WELL AS THE DESERT SOUTHWEST WITH HEAT
RISK PERSISTING OVER SOUTHERN TEXAS...
OVER THE NEXT COUPLE OF DAYS, A SHIFT IN THE WEATHER PATTERN WILL
GRADUALLY PUSH THE ACTIVE WEATHER THAT HAS BEEN PERSISTING OVER
THE MID-SECTION OF THE COUNTRY TOWARD THE EASTERN U.S. THIS SHIFT
IN THE WEATHER PATTERN WILL ALSO BRING A HEATWAVE INTO THE WESTERN
U.S. A LOW PRESSURE SYSTEM CURRENTLY ADVANCING ACROSS THE
NORTHERN PLAINS HAS PROMPTED HIGH WIND WARNINGS AND WIND
ADVISORIES FROM THE NORTHERN ROCKIES INTO THE NORTHERN PLAINS.
THIS SYSTEM WILL ACT AS A CATALYST FOR THE WEATHER PATTERN CHANGE
AS THE TRAILING FRONT MARCHES ACROSS THE COUNTRY THROUGH THE NEXT
COUPLE OF DAYS. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BE MOST
ACTIVE AHEAD OF THE COLD FRONT ACROSS THE MIDWEST AND FARTHER
SOUTH WHERE IT MEETS A LOW PRESSURE WAVE OVER OKLAHOMA, WHERE THE
CHANCE OF SEVERE THUNDERSTORMS AND FLASH FLOODING WILL BE THE
HIGHEST THROUGH TONIGHT. BY WEDNESDAY, THE SYSTEM WILL PUSH
STEADILY EASTWARD, ENDING MUCH OF THE ACTIVE WEATHER OVER THE
MID-SECTION OF THE COUNTRY WHILE SPREADING WIDESPREAD SHOWERS AND
EMBEDDED THUNDERSTORMS ACROSS THE GREAT LAKES, OHIO AND TENNESSEE
VALLEYS, AND DOWN TOWARD THE LOWER MISSISSIPPI VALLEY. THE
INCLEMENT WEATHER WILL REACH INTO MUCH OF THE EAST COAST ON
THURSDAY AS A COLD FRONT CONTINUES ITS EASTWARD PROGRESS. THERE
APPEARS TO BE A GREATER CHANCE FOR NEW ENGLAND TO SEE STRONGER
THUNDERSTORMS LATER ON THURSDAY AS A WARM FRONT LIFTING NORTHWARD
MEETS THE EASTWARD-ADVANCING COLD FRONT.
MUCH COOLER, DAMP, AND WINDY CONDITIONS WILL GRADUALLY SPREAD FROM
THE NORTHERN PLAINS EASTWARD INTO THE UPPER MIDWEST AND THE GREAT
LAKES THROUGH THE NEXT COUPLE OF DAYS BEHIND THE COLD FRONT AND A
DEEP LOW PRESSURE SYSTEM OVER SOUTHERN CANADA. ON THE OPPOSITE
SIDE OF THE COUNTRY, A HEATWAVE IS IN STORE FOR THE SOUTHWESTERN
PORTION OF THE COUNTRY AS A STRONG RIDGE OF HIGH PRESSURE
INTENSIFIES AND TAKES CONTROL. AREAS OF PARTICULAR CONCERN FOR
THE HEAT INCLUDE THE LOW ELEVATION REGIONS OF CALIFORNIA'S CENTRAL
VALLEY, WHERE HIGH TEMPERATURES WILL LIKELY CLIMB WELL UP INTO THE
100S AT THE HOTTEST LOCATION WHILE 110S WILL BE COMMON OVER THE
INTERIOR DESERT REGION INCLUDING LAS VEGAS, NV ESPECIALLY BY
THURSDAY AFTERNOON. THERE IS A GOOD CHANCE FOR THE TEMPERATURE TO
TOP 112 DEGREES IN LAS VEGAS ON THURSDAY, WHICH WOULD BECOME THE
CITY'S EARLIEST OBSERVED 112 DEGREES ON RECORD. WIDESPREAD
TEMPERATURE RECORDS ARE ALSO EXPECTED TO BE TIED OR BROKEN
ELSEWHERE ACROSS MUCH OF THE AFOREMENTIONED AREAS. EXCESSIVE HEAT
WARNINGS AND WATCHES EXTEND FROM THE CENTRAL VALLEY DOWN THROUGH
SOUTHERN CALIFORNIA'S DESERTS, SOUTHERN NEVADA AND
SOUTHERN/WESTERN ARIZONA. HEAT RISK WILL PEAK OVER CALIFORNIA'S
CENTRAL VALLEY ON WEDNESDAY BEFORE EXPANDING INTO THE DESERT
SOUTHWEST LATER THIS WEEK. LITTLE OVERNIGHT RELIEF WILL MAKE FOR
DANGEROUS CONDITIONS FOR THOSE WITHOUT EFFECTIVE COOLING AND/OR
ADEQUATE HYDRATION. MEANWHILE, HEAT RISK OVER SOUTHERN TEXAS
PEAKS TODAY BUT IS EXPECTED TO PERSIST FOR THE NEXT FEW DAYS.
KONG/KEBEDE
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