398  
FXUS06 KWBC 052002  
PMDMRD  
PROGNOSTIC DISCUSSION FOR 6 TO 10 AND 8 TO 14 DAY OUTLOOKS  
NWS CLIMATE PREDICTION CENTER COLLEGE PARK, MD  
300 PM EST THU DECEMBER 05 2024  
 
6-10 DAY OUTLOOK FOR DEC 11 - 15 2024  
 
MOST MODEL GUIDANCE FROM THIS MORNING INDICATES THAT A CHANGE IN THE 500-HPA  
PATTERN WILL BE UNDERWAY DURING THIS PERIOD. GUIDANCE HAS CONVERGED TOWARD  
BETTER AGREEMENT FOR THE SECOND CONSECUTIVE DAY, AND THE VERY LOW CONFIDENCE OF  
THE LAST TWO FORECASTS HAS INCREASED A BIT TODAY. STILL, THERE HAS BEEN  
SIGNIFICANT RUN-TO-RUN INCONSISTENCY, RAW TEMPERATURE AND PRECIPITATION  
DYNAMICAL MODEL OUTPUT AT ODDS WITH THE STATISTICALLY-ADJUSTED TOOLS IN SOME  
AREAS, AND TELECONNECTIONS ON THE TWO PREDOMINANT FEATURES (A MID-LEVEL RIDGE  
IN THE ATLANTIC, AND ANOTHER IN THE PACIFIC) ARE IN SHARP CONTRAST, ALTHOUGH  
THEY ARE NOT 180 DEGREES OUT OF PHASE TODAY. ALSO, THE MID-LEVEL PATTERN IS  
SLOWLY CHANGING TO BETTER RESEMBLE TELECONNECTIONS BASED ON A STRONG MID-LEVEL  
RIDGE IN THE ATLANTIC. TODAY’S MODELS ARE CONSIDERABLY STRONGER WITH THE  
ATLANTIC RIDGE, AND A BIT WEAKER WITH THE PACIFIC RIDGE. THIS GIVES US A REASON  
TO FAVOR TELECONNECTIONS BASED ON THE ATLANTIC RIDGE MORE THAN THE PACIFIC  
RIDGE TELECONNECTIONS, WHICH IS ANOTHER FACTOR CONTRIBUTING TO SOMEWHAT  
INCREASED CONFIDENCE TODAY.  
 
THE PREVAILING PATTERN IN THE GEFS, EUROPEAN ENSEMBLE (ECENS) MEAN, THE  
CANADIAN ENSEMBLE (CMCE) MEAN, AND THE OPERATIONAL EUROPEAN MODEL ALL DEPICT A  
STRONG RIDGE IN THE CENTRAL NORTH ATLANTIC CENTERED NEAR THE SAME LOCATION AS  
YESTERDAY. FOR THE 6-10 DAY PERIOD, THE OPERATIONAL EUROPEAN HAS A 5-DAY  
AVERAGE 500-HPA HEIGHT ANOMALY TOPPING OUT AT +32 DM WHILE THE ENSEMBLE MEANS  
ALL PREDICT A 5-DAY AVERAGE ANOMALY ABOVE +25 DM. FARTHER WEST, MODELS AGREE  
THAT THE MARGINAL MID-LEVEL TROUGH IN THE EASTERN CONTIGUOUS UNITED STATES  
(CONUS) WILL HAVE AN AXIS STRETCHING FROM APPROXIMATELY THE GREAT LAKES REGION  
INTO THE SOUTHEASTERN CONUS. BUT DESPITE GOOD AGREEMENT ON LOCATION, THERE  
REMAINS A LOT OF UNCERTAINTY ON THE STRENGTH. THE OPERATIONAL EUROPEAN SHOWS  
THE LARGEST NEGATIVE 500-HPA HEIGHT ANOMALIES, FOLLOWED BY THE SLIGHTLY WEAKER  
ECENS MEAN. THE CMCE MEAN IS CONSIDERABLY WEAKER WITH THIS FEATURE, AND THE  
GEFS BARELY HAS ANY REFLECTION AT ALL, SHOWING JUST AN AREA WITH SLIGHTLY  
LESSER 500-HPA ANOMALIES IN THE MIDDLE OF A BROAD FLAT RIDGE FROM CENTRAL NORTH  
ATLANTIC WESTWARD THROUGH MOST OF THE CONUS. GIVEN THE AMPLITUDE OF OTHER  
FEATURES, THE STRONGER SOLUTION IS PREFERRED, WHICH IS MORE CONSISTENT WITH  
TELECONNECTIONS AS WELL. THIS FEATURE WILL BE DRIFTING EASTWARD AND  
DISSIPATING, BUT A STORM SYSTEM MAY START THE PERIOD NEAR THE EAST COAST AND  
MOVE OFF TO THE NORTHEAST FAIRLY QUICKLY AS THE PATTERN EVOLVES. FARTHER WEST,  
POSITIVE 500-HPA HEIGHTS ARE FORECAST IN ASSOCIATION WITH THE RIDGE IN THE  
CENTRAL NORTH PACIFIC, AND TO A LESSER EXTENT ACROSS MOST OF THE WESTERN CONUS  
AS WELL. BUT BETWEEN THESE FEATURES, THERE ARE CONSIDERABLE INCONSISTENCIES ON  
A WEAK TROUGH FORECAST BY MOST TOOLS TO EXTEND ALONG THE WESTERN COASTLINE OF  
NORTH AMERICA. THE ARRAY OF MODEL SOLUTIONS RESEMBLES THE INCONSISTENCIES IN  
THE EASTERN CONUS TROUGH. THE OPERATIONAL EUROPEAN MODEL IS MOST PRONOUNCED,  
WITH THE ECENS MEAN A BIT WEAKER. MEANWHILE, THE GEFS SHOWS A VERY WEAK TROUGH,  
AND THE CMCE MEAN HAS NO REFLECTION OF A TROUGH WHATSOEVER. AGAIN, DUE TO THE  
AMPLITUDE OF OTHER FEATURES AND THE BETTER CONSISTENCY WITH THE FAVORED  
TELECONNECTION PATTERN, A MORE PRONOUNCED FEATURE IS EXPECTED. MEANWHILE, THE  
5-DAY AVERAGE HEIGHT FIELD IS EXPECTED TO RANGE FROM NEAR NORMAL IN SOUTHEAST  
HAWAII AND INCREASE TOWARD THE NORTH. AND ALL MODELS DEPICT ABOVE-NORMAL  
HEIGHTS OVER MOST OF ALASKA OUTSIDE SOUTHEASTERN AREAS, WHICH WILL BE NEAR THE  
TROUGH ALONG THE WESTERN NORTH AMERICAN COAST. TODAY’S MODELS SHOW THE CENTRAL  
PACIFIC MID-LEVEL RIDGE STRETCHING NORTHWARD A BIT MORE AGGRESSIVELY, SO LARGER  
MID-LEVEL HEIGHT ANOMALIES ARE FORECAST THERE RELATIVE TO YESTERDAY.  
 
THERE ARE DIFFERENCES IN THE TEMPERATURE AND PRECIPITATION GUIDANCE FROM THE  
ENSEMBLES, PRIMARILY DRIVEN BY DIFFERENCES IN THE HANDLING OF THE WEAK  
MID-LEVEL TROUGHS NEAR THE EAST AND WEST COASTS. THE PREFERRED SOLUTION SHOULD  
FAVOR COLD AIR OVER PART OF THE SOUTHEAST THAT LIFTS OUT AS THE PERIOD  
PROGRESSES; HOWEVER, IT SHOULD BE SIGNIFICANT ENOUGH TO ENHANCE CHANCES FOR  
SUBNORMAL TEMPERATURES FOR THE PERIOD AS A WHOLE. ELSEWHERE, CLOSER TO THE  
STRONG RIDGE IN THE CENTRAL ATLANTIC, WARMER THAN NORMAL WEATHER IS FAVORED IN  
NEW ENGLAND AND SOUTHERNMOST FLORIDA. MOST OF THE CENTRAL AND WESTERN CONUS  
HAVE ENHANCED CHANCES FOR ABOVE-NORMAL TEMPERATURES, CONSISTENT WITH BROADLY  
ABOVE-NORMAL 500-HPA HEIGHTS. THE BEST ODDS CONTINUE TO COVER CENTRAL AND  
NORTHERN SECTIONS OF THE PLAINS, WHERE THE POTENTIAL FOR DOWNSLOPING WINDS  
ENHANCES THE ODDS FOR WARMTH, ESPECIALLY CLOSER TO THE FRONT RANGE. ELSEWHERE,  
THE NORTHWARD EXTENSION OF THE CENTRAL PACIFIC RIDGE SHOULD FAVOR WARMER THAN  
NORMAL WEATHER ACROSS MOST OF ALASKA, AND THE FLAT RIDGE CENTERED NORTH OF  
HAWAII IS EXPECTED TO KEEP TEMPERATURES ABOVE NORMAL.  
 
THE EASTERN FRINGE OF THE CONUS MAY BE UNDER THE EFFECTS OF A DEPARTING FRONTAL  
SYSTEM AS THE PERIOD GETS UNDERWAY, INCREASING THE ODDS FOR ABOVE-NORMAL  
PRECIPITATION. FARTHER WEST, HOWEVER, SUBSIDENCE IN THE WAKE OF THE MID-LEVEL  
TROUGH SHOULD LEAD TO SUBNORMAL PRECIPITATION FROM THE PARTS OF THE EASTERN  
MISSISSIPPI VALLEY EASTWARD THROUGH THE GREAT LAKES, THE OHIO VALLEY, AND INTO  
THE INTERIOR SOUTHEAST. SUBNORMAL PRECIPITATION IS ALSO FAVORED FROM THE  
SOUTHERN HIGH PLAINS INTO THE SOUTHWEST, REMOVED FROM THE MID-LEVEL TROUGH IN  
THE NORTHEASTERN NORTH PACIFIC. BETWEEN THE TWO AREAS OF FAVORED DRYNESS, THE  
DERIVED PRECIPITATION TOOLS HINT AT A MOISTURE PLUME OR FRONTAL SYSTEM TO SET  
UP THROUGH THE CENTRAL CONUS LATER IN THE PERIOD. PRECIPITATION LOOKS TO BE  
NEAR NORMAL FOR THE PERIOD AS A WHOLE IN THE NATION’S MID-SECTION, WITH SOME  
SLIGHTLY INCREASED CHANCES FOR SURPLUS RAINFALL PUSHING INTO SOUTHERN TEXAS.  
MEANWHILE, THE EXPECTED MID-LEVEL TROUGH OFF THE NORTHWESTERN NORTH AMERICAN  
COAST WOULD FAVOR ABOVE-NORMAL PRECIPITATION OVER THE NORTHWESTERN QUARTER OF  
THE COUNTRY. ELSEWHERE, ACROSS ALASKA, PRECIPITATION TOOLS DERIVED FROM THE  
ENSEMBLES INDICATE SLIGHTLY INCREASED ODDS FOR ABOVE-NORMAL PRECIPITATION,  
WHICH IS BUMPED UP IN SOUTH-CENTRAL AND SOUTHEASTERN SECTIONS CLOSEST TO  
CYCLONIC, SOUTHERLY SURFACE AND MID-LEVEL FROW. THE ENSEMBLE MEANS GENERALLY  
PLACE ABOVE-NORMAL PRECIPITATION OVER HAWAII, ALTHOUGH OROGRAPHY WOULD FAVOR  
SURPLUS MOISTURE MORE ON THE NORTHEASTERN TIER OF THE ISLAND CHAIN THAN  
ELSEWHERE.  
 
THE OFFICIAL 6-10 DAY 500-HPA HEIGHT BLEND CONSISTS OF 20% OF TODAY'S 6Z GFS  
ENSEMBLE MEAN CENTERED ON DAY 8, 25% OF TODAY'S 0Z EUROPEAN ENSEMBLE MEAN  
CENTERED ON DAY 8, 40% OF TODAY'S OPERATIONAL 0Z ECMWF CENTERED ON DAY 8, AND  
15% OF TODAY'S 0Z CANADIAN ENSEMBLE MEAN CENTERED ON DAY 8  
 
 
FORECAST CONFIDENCE FOR THE 6-10 DAY PERIOD: BELOW NORMAL, 2 OUT OF 5, WITH  
BETTER MEAN PATTERN AGREEMENT AMONG THE MODELS, INCREASED CONSISTENCY IN THE  
TEMPERATURE AND PRECIPITATION GUIDANCE DERIVED FROM THE ENSEMBLES, AND SOMEWHAT  
IMPROVED TELECONNECTIONS TEMPERED BY RUN-TO-RUN INCONSISTENCY AND UNCERTAINTY  
IN THE STRENGTH OF THE 5-DAY AVERAGE MID-LEVEL TROUGHS OVER THE EASTERN CONUS  
AND OFF THE NORTHWESTERN NORTH AMERICAN COAST.  
 
8-14 DAY OUTLOOK FOR DEC 13 - 19 2024  
 
THE MODELS ARE IN FAIR AGREEMENT ON THE 7-DAY AVERAGE MID-LEVEL PATTERN  
DEPICTED BY THE MODELS. ALL SHOW A WEAKER 500-HPA RIDGE IN THE NORTH ATLANTIC,  
WITH ANOMALOUSLY HIGH 500-HPA HEIGHTS STRETCHING MORE AGGRESSIVELY WESTWARD  
INTO MOST OF THE CONUS, ESPECIALLY EASTERN SECTIONS. ALL ENSEMBLE MEANS SHOW A  
SECONDARY HEIGHT ANOMALY MAXIMUM CENTERED OVER THE EAST-CENTRAL CONUS IN  
ADDITION TO THE ONE ASSOCIATED WITH THE MID-LEVEL RIDGE IN THE NORTH ATLANTIC.  
THERE IS LESS CONSISTENCY FARTHER WEST, WITH THE GEFS AND ECENS MEAN SHOWING A  
SOMEWHAT BROADER AND DEEPER TROUGH NEAR WESTERN NORTH AMERICA WHILE THE CMCE  
MEAN SHOWS NO REFLECTION AT ALL. THIS AFFECTS THE FORECAST FOR AREAS FROM  
SOUTHEASTERN ALASKA INTO THE NORTHWESTERN CONUS. SINCE THE PREPONDERANCE OF THE  
GUIDANCE IS CONSISTENT WITH THE REASONING FOR THE 6-10 DAY FORECAST, THE  
STRONGER REFLECTION OF THE MID-LEVEL TROUGH IS FAVORED. IN CONTRAST, GUIDANCE  
SHOWS NO REFLECTION OF THE EASTERN CONUS TROUGH IN THE MEAN FOR THE WEEK-2  
PERIOD, WHICH IS NOT SURPRISING GIVEN BROAD AGREEMENT THAT ANOMALOUSLY HIGH  
500-HPA HEIGHTS WILL BE BUILDING IN FROM THE EAST.  
 
THIS PATTERN FAVORS ABOVE-NORMAL TEMPERATURES ACROSS MOST OF THE CONUS UNDER  
INCREASING MID-LEVEL HEIGHTS. THE GREATEST ODDS FOR WARMTH (OVER 60 PERCENT)  
COVER A LARGE PART OF THE INTERIOR CONUS NEAR AND TO THE WEST OF THE HEIGHT  
ANOMALY MAXIMUM OVER THE EAST-CENTRAL CONUS. MEANWHILE, THE RELATIVELY WEAK  
TROUGH, WITH AN AXIS JUST OFF THE NORTHWESTERN NORTH AMERICA COAST, SHOULD KEEP  
TEMPERATURES CLOSER TO NORMAL OVER THE NORTHERN FRINGES OF THE WESTERN CONUS  
AND THE WESTERN TIER OF THE CONUS. ABOVE-NORMAL 500-HPA HEIGHTS OVER ALASKA AND  
TO THE NORTH OF HAWAII SHOULD CONTINUE TO FAVOR HIGHER THAN NORMAL TEMPERATURES  
THERE AS WELL, ALTHOUGH THE PROBABILITIES FOR HAWAII WERE REDUCED SLIGHTLY FROM  
THE CONSOLIDATION, AS SOME DYNAMICAL MODELS ARE LESS BULLISH WITH THE WARMTH  
THAN THE TOOLS DERIVED FROM THE ENSEMBLES.  
 
WITH MID-LEVEL HIGH PRESSURE BUILDING IN FROM THE EAST, SQUELCHING THE EASTERN  
CONUS TROUGH, THE AREA FAVORED FOR BELOW-NORMAL PRECIPITATION IS SHIFTED  
EASTWARD FROM YESTERDAY, COVERING THE IMMEDIATE EASTERN SEABOARD, ESPECIALLY  
THE SOUTH ATLANTIC STATES SOUTH OF THE MID-LEVEL HEIGHT ANOMALY MAXIMUM. IN  
CONTRAST, THE CONTINUING MID-LEVEL TROUGH NEAR NORTHWESTERN NORTH AMERICA WILL  
KEEP INCREASED ODDS FOR WETTER THAN NORMAL WEATHER OVER THE NORTHWESTERN  
QUARTER OF THE CONUS. OVER MOST OTHER PARTS OF THE CONUS, THE CHANCES FOR  
SURPLUS PRECIPITATION ARE A LITTLE HIGHER THAN DURING THE 6-10 DAY PERIOD, WITH  
ALL DERIVED TOOLS INDICATING SOME TENDENCY FOR INCREASED MOISTURE IN THE  
CENTRAL CONUS, FROM A PLUME OF TROPICAL MOISTURE AND/OR AN ACTIVE  
QUASI-STATIONARY FRONTAL SYSTEM. AREAS FROM THE SOUTHWEST THROUGH THE NORTHERN  
PLAINS HAVE ODDS FAVORING NEAR NORMAL OR SLIGHTLY ENHANCED PRECIPITATION. GIVEN  
THE DRY CLIMATOLOGY THERE THIS TIME OF YEAR, NOT A LOT OF PRECIPITATION IS  
NEEDED TO PUSH TOTALS ABOVE NORMAL. OVER ALASKA, THERE HAS BEEN A LOT OF  
RUN-TO-RUN INCONSISTENCY IN THE STRENGTH OF THE POTENTIALLY WET REGIME ACROSS  
THE STATE WEEK-2. MODELS SEEM TO FLUCTUATE DAILY ON THE STRENGTH OF THIS  
SET-UP, IN SOME CASES MARKEDLY SO. AT THIS TIME, KEEPING SLIGHTLY ENHANCED ODDS  
FOR SURPLUS PRECIPITATION IS THE COURSE OF LEAST REGRET, AS THERE ARE NO  
INDICATIONS THAT ANY SORT OF DRY REGIME MIGHT BECOME ESTABLISHED. THE EXCEPTION  
WOULD BE ACROSS NORTHERN ALASKA, FARTHEST REMOVED FROM ANY ENHANCED MOISTURE  
ADVECTED NORTHWARD FROM THE NORTH PACIFIC. THE CONSOLIDATION AND MOST MODEL  
GUIDANCE AGAIN FAVORS WETTER THAN NORMAL WEATHER ACROSS HAWAII, WITH OROGRAPHY  
FAVORING WETNESS ALONG THE NORTHEASTERN TIER OF THE ISLAND CHAIN THAN ELSEWHERE.  
 
THE OFFICIAL 8-14 DAY 500-HPA HEIGHT BLEND CONSISTS OF: 40% OF TODAY'S 6Z GFS  
ENSEMBLE MEAN CENTERED ON DAY 11, 40% OF TODAY'S 0Z EUROPEAN ENSEMBLE MEAN  
CENTERED ON DAY 11, AND 20% OF TODAY'S 0Z CANADIAN ENSEMBLE MEAN CENTERED ON  
DAY 11  
 
FORECAST CONFIDENCE FOR THE 8-14 DAY PERIOD: BELOW NORMAL, 2 OUT OF 5, DUE TO  
DECENT AGREEMENT IN THE HEIGHT FIELDS ACROSS MOST OF THE CONUS, TEMPERED BY  
UNCERTAINTY ASSOCIATED WITH POTENTIALLY INCREASED PRECIPITATION IN THE CENTRAL  
CONUS, THE UNCERTAIN NATURE OF THE MID-LEVEL TROUGH OFF THE NORTHWEST NORTH  
AMERICAN COAST, AND FLUCTUATING INDICATIONS ABOUT PRECIPITATION POTENTIAL OVER  
ALASKA, ESPECIALLY SOUTHEASTERN SECTIONS AND THE NORTHERN MAINLAND.  
 
FORECASTER: RICH TINKER  
 
NOTES:  
 
AUTOMATED FORECASTS ARE ISSUED ON SATURDAY AND SUNDAY. OCCASIONALLY MANUAL  
INTERVENTION IS NECESSARY TO ADDRESS QUALITY CONTROL AND CONSISTENCY ISSUES. IN  
THESE CASES, FORECASTS ARE MANUALLY DRAWN BUT A FULL DISCUSSION IS NOT ISSUED.  
 
THE NOTATION FOR THE CATEGORICAL FORECAST INDICATED ON THE MAPS IS THE SAME AS  
THAT IN THE TABLES: A-ABOVE N-NEAR NORMAL B-BELOW  
 
THE TEMPERATURE MAP SHOWS REGIONS WITH > 33% CHANCE OF BEING WARMER (ORANGE,  
"A"), COLDER (BLUE, "B"), OR CLOSE TO (UNSHADED, "N"). HISTORICAL AVERAGE  
VALUES FOR THE CALENDAR PERIOD OF THE FORECAST (DASHES, "F"). LABELS ON THE  
SHADED LINES GIVE THE PROBABILITY (> 33%) OF THE MORE LIKELY CATEGORY (B OR A).  
PROBABILITY OF N IS ALWAYS < 40%.  
 
THE PRECIPITATION MAP SHOWS REGIONS WITH > 33% CHANCE OF BEING WETTER (GREEN,  
"A"), DRIER (TAN, "B"), OR CLOSE TO (UNSHADED, "N"). HISTORICAL MEDIAN VALUES  
FOR THE CALENDAR PERIOD OF THE FORECAST (DASHES, "INCHES"). LABELS ON THE  
SHADED LINES GIVE THE PROBABILITY (> 33%) OF THE MORE LIKELY CATEGORY (B OR A).  
PROBABILITY OF N IS ALWAYS < 40%.  
 
IN THE SOUTHWEST AND OTHER CLIMATOLOGICALLY DRY REGIONS - THERE WILL BE A  
GREATER THAN 33.3% CHANCE OF NO PRECIPITATION AND OCCASIONALLY EVEN A NORMAL  
(I.E. MEDIAN) VALUE OF ZERO - ESPECIALLY DURING THE DRY SEASONS. IN SUCH CASES  
A FORECAST OF NEAR NORMAL IS EFFECTIVELY A FORECAST OF LITTLE OR NO  
PRECIPITATION.  
 
THE CLIMATE PREDICTION CENTER USES 1991-2020 BASE PERIOD MEANS AS REFERENCE IN  
THE CLIMATE OUTLOOKS.  
 
THE NEXT SET OF LONG-LEAD MONTHLY AND SEASONAL OUTLOOKS WILL BE RELEASED ON  
DECEMBER 19.  
 
ANALOGS TO THE 5 DAY MEAN OBSERVED PATTERN CENTERED 3 DAYS AGO (D-3)  
FOR THE REGION FROM 20N TO 70N LATITUDE AND 175E TO 60W LONGITUDE  
INCLUDE THE 5 DAY PERIODS CENTERED ON THE FOLLOWING DATES:  
20021129 - 19581213 - 19851219 - 19561125 - 20041214  
 
ANALOGS TO THE 7 DAY MEAN OBSERVED PATTERN CENTERED 4 DAYS AGO (D-4)  
FOR THE REGION FROM 20N TO 70N LATITUDE AND 175E TO 60W LONGITUDE  
INCLUDE THE 7 DAY PERIODS CENTERED ON THE FOLLOWING DATES:  
20021128 - 19561125 - 19601217 - 19581212 - 19851218  
 
6-10 DAY OUTLOOK TABLE  
OUTLOOK FOR DEC 11 - 15 2024  
 
STATE TEMP PCPN STATE TEMP PCPN STATE TEMP PCPN  
WASHINGTON A A OREGON A A NRN CALIF A N  
SRN CALIF A B IDAHO A A NEVADA A N  
W MONTANA A A E MONTANA A A WYOMING A A  
UTAH A N ARIZONA A B COLORADO A B  
NEW MEXICO A B N DAKOTA A N S DAKOTA A N  
NEBRASKA A N KANSAS A N OKLAHOMA A N  
N TEXAS N N S TEXAS N A W TEXAS N N  
MINNESOTA N N IOWA A N MISSOURI N N  
ARKANSAS N N LOUISIANA N B WISCONSIN N N  
ILLINOIS N B MISSISSIPPI B B MICHIGAN N N  
INDIANA N B OHIO N B KENTUCKY B B  
TENNESSEE B B ALABAMA B B NEW YORK N N  
VERMONT N A NEW HAMP A A MAINE A A  
MASS A A CONN A A RHODE IS A A  
PENN N N NEW JERSEY N A W VIRGINIA N B  
MARYLAND N A DELAWARE N A VIRGINIA N N  
N CAROLINA N A S CAROLINA N A GEORGIA B N  
FL PNHDL B N FL PENIN N A AK N SLOPE A A  
AK ALEUTIAN A A AK WESTERN A A AK INT BSN A A  
AK S INT A A AK SO COAST A A AK PNHDL A A  
 
 
 
8-14 DAY OUTLOOK TABLE  
OUTLOOK FOR DEC 13 - 19 2024  
 
STATE TEMP PCPN STATE TEMP PCPN STATE TEMP PCPN  
WASHINGTON N A OREGON N A NRN CALIF N A  
SRN CALIF N A IDAHO N A NEVADA N A  
W MONTANA N A E MONTANA N A WYOMING A A  
UTAH A A ARIZONA A N COLORADO A A  
NEW MEXICO A N N DAKOTA A A S DAKOTA A A  
NEBRASKA A A KANSAS A A OKLAHOMA A A  
N TEXAS A A S TEXAS A A W TEXAS A N  
MINNESOTA A A IOWA A A MISSOURI A A  
ARKANSAS A A LOUISIANA A N WISCONSIN A A  
ILLINOIS A A MISSISSIPPI A N MICHIGAN A A  
INDIANA A A OHIO A N KENTUCKY A N  
TENNESSEE A B ALABAMA A B NEW YORK A N  
VERMONT A N NEW HAMP A B MAINE A B  
MASS A B CONN A B RHODE IS A B  
PENN A B NEW JERSEY A B W VIRGINIA A B  
MARYLAND A B DELAWARE A B VIRGINIA A B  
N CAROLINA A B S CAROLINA A B GEORGIA A B  
FL PNHDL A B FL PENIN A N AK N SLOPE N N  
AK ALEUTIAN A A AK WESTERN A A AK INT BSN A A  
AK S INT A A AK SO COAST A A AK PNHDL N A  
 
LEGEND  
TEMPS WITH RESPECT TO NORMAL PCPN WITH RESPECT TO MEDIAN  
A - ABOVE N - NEAR NORMAL A - ABOVE N - NEAR MEDIAN  
B - BELOW B - BELOW  
 
THE FORECAST CLASSES REPRESENT AVERAGES FOR EACH STATE. NORMAL  
VALUES - WHICH MAY VARY WIDELY ACROSS SOME STATES - ARE  
AVAILABLE FROM YOUR LOCAL WEATHER SERVICE FORECAST OFFICE.  
 
FOR ADDITIONAL INFORMATION SEE MESSAGE FXUS06 KWBC - ON AWIPS AS  
PMDMRD.  
 

 
 
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