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FXUS06 KWBC 102006
PMDMRD
PROGNOSTIC DISCUSSION FOR 6 TO 10 AND 8 TO 14 DAY OUTLOOKS
NWS CLIMATE PREDICTION CENTER COLLEGE PARK, MD
300 PM EST FRI JANUARY 10 2025
6-10 DAY OUTLOOK FOR JAN 16 - 20 2025
THERE IS GOOD OVERALL AGREEMENT BETWEEN THE LATEST ECENS, GEFS, AND CANADIAN
ENSEMBLE MEAN 500-HPA HEIGHT FORECASTS ON THE PREDICTED CIRCULATION PATTERN
ACROSS NORTH AMERICA FOR THE 6-10 DAY PERIOD. IT LOOKS CONSIDERABLY DIFFERENT
FROM YESTERDAY ACROSS CENTRAL NORTH AMERICA. THE MODELS ALL BUILD A STRONG
RIDGE CENTERED OVER OR NEAR THE GULF OF ALASKA WITH MEAN POSITIVE 500-HPA
HEIGHT ANOMALIES REACHING NORTHWARD ACROSS MOST OF ALASKA AND EASTWARD INTO
WESTERN PORTIONS OF CANADA AND THE CONTIGUOUS UNITED STATES (CONUS). THE
PATTERN LOOKS MORE AMPLIFIED THAN YESTERDAY, AT LEAST IN THE MEAN; YESTERDAY’S
MANUAL HEIGHT BLEND SHOWED THE NORTH PACIFIC-ALASKA RIDGE WITH PEAK POSITIVE
HEIGHT ANOMALIES OF +15 DM. TODAY, THE ANOMALY REACHES +24 DM. DOWNSTREAM, A
MODERATELY STRONG MEAN MID-LEVEL TROUGH IS ESTABLISHED FROM CENTRAL CANADA
THROUGH THE CENTRAL CONUS, WHICH IS A CONSIDERABLY DIFFERENT SOLUTION FROM THE
SLIGHTLY POSITIVE 500-HPA HEIGHTS SHOWN IN THIS AREA YESTERDAY. TODAY’S
MID-LEVEL TROUGH IN THIS REGION TELECONNECTS BETTER WITH THE STRONG MID-LEVEL
RIDGE FARTHER WEST. ELSEWHERE, SLIGHTLY ABOVE-NORMAL MEAN 500-HPA HEIGHTS
STRETCH ACROSS THE SOUTHERN TIER OF THE CONUS WHILE SLIGHTLY BELOW-NORMAL MEAN
MID-LEVEL HEIGHTS COVER EASTERN NORTH AMERICA.
THE MODELS AND ENSEMBLE MEANS ARE IN BETTER AGREEMENT ON THE DAY-TO-DAY
PROGRESSION OF FEATURES THAN YESTERDAY. ALL ENSEMBLE MEANS SHOW A WEAK
MID-LEVEL RIDGE IN THE CENTRAL CONUS WHICH IS QUICKLY QUASHED AS THE NORTH
PACIFIC-ALASKA MID-LEVEL RIDGE BUILDS NORTHWARD AND BEGINS TO DIG OUT A
DOWNSTREAM MID-LEVEL TROUGH OVER MOST OF CENTRAL NORTH AMERICA. FOR THE REST OF
THE PERIOD, THE NORTH PACIFIC MID-LEVEL RIDGE BUILDS AND DRIFTS EASTWARD WHILE
THE DOWNSTREAM TROUGH ALSO DRIFTS SLOWLY EASTWARD AS WELL. THERE ARE SOME
DIFFERENCES IN THE FORECAST PATTERN AT THE END OF THE PERIOD. THE ECENS MEAN
DEPICTS A STRONGER RIDGE OVER THE NORTH PACIFIC AND ALASKA ON DAY 10 THAN MOST
OTHER GUIDANCE, AND THE GEFS MEAN HAS A SLIGHTLY DEEPER TROUGH IN CENTRAL NORTH
AMERICA CENTERED SLIGHTLY FARTHER EAST THAN MOST OTHER GUIDANCE. IN ADDITION,
THE ECENS AND CANADIAN ENSEMBLE MEANS SHOW POSITIVE MID-LEVEL HEIGHT ANOMALIES
OVER FLORIDA AND THE ADJACENT SOUTH ATLANTIC REGION ON DAY 10 WHILE GEFS
HEIGHTS THERE ARE LOWER. POSITIVE HEIGHT ANOMALIES ARE IN BETTER AGREEMENT WITH
THE ANALOGS AND TELECONNECTIONS, AND IS THE PREFERRED SOLUTION, BUT THE MODELS
ARE IN CONSIDERABLY BETTER AGREEMENT THAN YESTERDAY ON THE EVOLUTION OF THE
OVERALL PATTERN AND INDIVIDUAL FEATURES. ALL ENSEMBLE MEANS DRAPE A SLOW-MOVING
FRONTAL BOUNDARY ACROSS THE LOWER MISSISSIPPI VALLEY AND SOUTHEAST AS A WEAK
SURFACE STORM SYSTEM FORMS AND PUSHES NORTHEASTWARD. BEHIND THIS SYSTEM, A
BROAD SURFACE HIGH PRESSURE SYSTEM PUSHES FROM CANADA INTO THE CONUS DOWNSTREAM
FROM THE STRONG NORTH PACIFIC-ALASKA MID-LEVEL RIDGE, ADVECTING COLD AIR
SOUTHWARD THAT WILL DOMINATE MOST OF THE CONUS FOR MOST OF THE 6-10 DAY PERIOD.
MEANWHILE, DUE TO THE POSITION AND EVOLUTION OF THIS HIGH-PRESSURE SYSTEM, DRY
EASTERLY WINDS WILL CONTINUE TO AFFECT SOUTHERN CALIFORNIA FOR AT LEAST PART OF
THE 6- TO 10-DAY PERIOD.
ABOVE-NORMAL MEAN 500-HPA HEIGHTS SOMEWHAT FAVOR A WARMER-THAN-NORMAL 6-10 DAY
PERIOD OVER CENTRAL AND SOUTHERN TEXAS. ELSEWHERE ACROSS THE CONUS, THE COLD
SURFACE HIGH PRESSURE THAT WILL EVENTUALLY DOMINATE MOST OF THE CONUS KEEP MEAN
TEMPERATURES NEAR- TO BELOW-NORMAL FOR THE 6-10 DAY PERIOD, WITH THE BEST ODDS
FOR SUBNORMAL TEMPERATURES (OVER 60 PERCENT) COVERING THE NORTHWESTERN QUARTER
OF THE CONUS, WHICH SHOULD BE THE FIRST AREA IMPACTED BY THE COLD CANADIAN AIR
HEADED INTO THE CONUS.
WITH MOST TOOLS SHOWING A SLOW-MOVING FRONTAL SYSTEM AND/OR SURFACE LOW
PRESSURE SYSTEM AFFECTING THE LOWER MISSISSIPPI VALLEY AND SOUTHEAST,
ABOVE-NORMAL PRECIPITATION IS FORECAST THERE, WITH ODDS EXCEEDING 50 PERCENT IN
PARTS OF THESE REGIONS. ENHANCED ODDS FOR WETTER THAN NORMAL WEATHER ALSO
COVERS THE HIGH PLAINS AND ADJACENT ROCKIES DUE TO UPSLOPING FLOW FROM THE COLD
HIGH PRESSURE MOVING INTO THE CENTRAL CONUS WITH ITS CENTER TO THE EAST OF THIS
REGION. MEANWHILE, BELOW-NORMAL PRECIPITATION IS FAVORED ALONG THE WEST COAST
IN ANTI-CYCLONIC MID-LEVEL FLOW AND DRY SURFACE WINDS COMING IN FROM FARTHER
EAST, AND IN PARTS OF THE UPPER MIDWEST COINCIDING WITH THE GREATEST MEAN
NEGATIVE 500-HPA ANOMALIES.
THE MID-LEVEL RIDGE BUILDING INTO ALASKA SHOULD BRING MILD AIR STREAMING INTO
THE STATE FROM THE SOUTH AND SOUTHEAST WITH THE SURFACE HIGH PRESSURE SHIFTING
SOUTHEASTWARD. RESIDUAL ARCTIC AIR EARLY IN THE PERIOD MAY ALLOW THE
NORTHWESTERN MAINLAND TO MAINTAIN BELOW-NORMAL MEAN TEMPERATURES THROUGH THE
5-DAY PERIOD, BUT OTHER AREAS SHOULD SEE TEMPERATURES RISE SIGNIFICANTLY DURING
THE PERIOD. THIS SURFACE FLOW ALSO SLIGHTLY FAVORS ABOVE-NORMAL PRECIPITATION
ACROSS THE STATE, BUT THE TRACK OF INDIVIDUAL STORM SYSTEMS IS UNCERTAIN, SO A
MORE FOCUSED AREA CAN’T BE IDENTIFIED AT THIS TIME.
ABOVE-NORMAL TEMPERATURES AND ABOVE-NORMAL PRECIPITATION ARE FAVORED FOR THE
HAWAIIAN ISLANDS, LARGELY DUE TO THE INFLUENCE OF POSITIVE SEA SURFACE
TEMPERATURE ANOMALIES AROUND THE ISLANDS. THIS IS CONSISTENT WITH THE
CONSOLIDATION TOOLS.
THE OFFICIAL 6-10 DAY 500-HPA HEIGHT BLEND CONSISTS OF 25% OF TODAY'S 6Z GFS
ENSEMBLE MEAN CENTERED ON DAY 8, 30% OF TODAY'S 0Z EUROPEAN ENSEMBLE MEAN
CENTERED ON DAY 8, 15% OF TODAY'S OPERATIONAL 0Z ECMWF CENTERED ON DAY 8, AND
30% OF TODAY'S 0Z CANADIAN ENSEMBLE MEAN CENTERED ON DAY 8
FORECAST CONFIDENCE FOR THE 6-10 DAY PERIOD: ABOVE AVERAGE, 4 OUT OF 5, DUE TO
GOOD AGREEMENT AMONG THE DYNAMICAL MODEL HEIGHT FORECASTS AND AN AMPLIFIED
PATTERN, OFFSET BY SLIGHT REGIONAL DIFFERENCES IN TEMPERATURE AND PRECIPITATION
TOOLS AND THE UNCERTAINTY INHERENT TO A CHANGING PATTERN.
8-14 DAY OUTLOOK FOR JAN 18 - 24 2025
THE MEAN MID-LEVEL PATTERN FORECASTS FROM ALL THREE ENSEMBLE MEANS ARE IN VERY
GOOD AGREEMENT, WITH A STRONG 500-HPA RIDGE OVER THE NORTH PACIFIC AND ALASKA
FEEDING INTO A POSITIVELY-TILTED MID-LEVEL TROUGH DOWNSTREAM, WITH AN AXIS FROM
SOUTH OF HUDSON BAY SOUTHWESTWARD TOWARD THE SOUTHERN HIGH PLAINS AND ROCKIES.
THERE IS SOME DISAGREEMENT IN THE MEAN WEEK-2 HEIGHT PATTERN FARTHER EAST. THE
ECENS AND CANADIAN ENSEMBLE MEANS DEPICT ABOVE-NORMAL 500-HPA HEIGHTS OVER MOST
OF FLORIDA AND THE IMMEDIATE SOUTH ATLANTIC COAST WHILE THE GEFS MEAN KEEPS
HEIGHTS BELOW NORMAL THERE. THE POSITIVE HEIGHT ANOMALIES ARE THE FAVORED
SOLUTION IN THIS REGION, AS IT IS DEPICTED BY MOST OF THE TOOLS, AND HAS A GOOD
TELECONNECTION WITH THE AMPLIFIED RIDGE/TROUGH PATTERN FARTHER NORTHWEST.
DESPITE GOOD AGREEMENT IN THE MEAN, THERE ARE DISCREPANCIES BETWEEN THE TOOLS
REGARDING THE DAILY EVOLUTION OF THE PATTERN AND INDIVIDUAL FEATURES MOVING
THROUGH IT. ALL ENSEMBLE MEANS SHOW THE MID-LEVEL NORTH PACIFIC-ALASKA RIDGE
PERSISTING, BUT THE GEFS MEAN BRINGS DOWN THE POSITIVE 500-HPA HEIGHTS
ANOMALIES MORE QUICKLY THAN THE ECENS AND CANADIAN ENSEMBLE MEANS.
CONSEQUENTLY, THE DOWNSTREAM MID-LEVEL TROUGH DRIFTS FARTHER EAST AWAY FROM THE
FLATTENING NORTH PACIFIC-ALASKA MID-LEVEL RIDGE WHILE THE OTHER TWO ENSEMBLE
MEANS KEEP THIS FEATURE MORE AMPLIFIED AND LOCATED FARTHER WEST. AS A RESULT,
THE DIFFERENCES AMONG THE ENSEMBLE MEANS IN THE SOUTH ATLANTIC REGION INCREASE,
WITH THE GEFS MEAN SHOWING BELOW NORMAL HEIGHTS THERE LATER WEEK-2 WHILE THE
ECENS AND CANADIAN ENSEMBLE MEANS CONTINUE TO BUILD HEIGHTS IN THIS REGION.
THIS IS PARTICULARLY TRUE IN THE CANADIAN ENSEMBLE MEAN, WHICH SHOWS POSITIVE
500-HPA HEIGHT ANOMALIES OF +6 TO +12 DM BY THE END OF WEEK-2. THE ECENS MEAN
KEEPS HEIGHT ANOMALIES BELOW +6 DM. THE MORE AMPLIFIED SOLUTION IS GENERALLY
FAVORED GIVEN IT IS DEPICTED BY A PREPONDERANCE OF THE TOOLS AND SHOWS BETTER
TELECONNECTIONS, ALTHOUGH THE CANADIAN ENSEMBLE MEAN IS PROBABLY BUILDING
500-HPA HEIGHTS TOO MUCH IN THE SOUTH ATLANTIC REGION.
THE AMPLIFIED, SLOW-MOVING PATTERN WILL FEATURE COLD CANADIAN HIGH PRESSURE
COVERING MOST OF THE CONUS EARLY IN THE PERIOD, THEN SLOWLY LOSING ITS GRIP ON
THE CENTRAL AND WESTERN CONUS LATER IN THE PERIOD. BUILDING HEIGHTS OVER AND
NEAR FLORIDA SHOULD ALSO RESULT IN INCREASING TEMPERATURES THERE, ALTHOUGH THE
RATE AT WHICH ANTECEDENT COLD AIR GETS SCOURED OUT IS QUESTIONABLE. THE BEST
ODDS FOR SUBNORMAL TEMPERATURES (OVER 70 PERCENT) SIT NEAR OR JUST EAST OF
WHERE THE CENTER OF THE COLD CANADIAN SURFACE HIGH PRESSURE WILL MOVE INTO THE
CONUS, APPROXIMATELY COVERING THE NORTHERN HALVES OF THE MISSISSIPPI VALLEY AND
PLAINS. THE FRONTAL SYSTEM DRAPED OVER THE SOUTHEAST WILL LIKELY PERSIST INTO
MUCH OF WEEK-2, WITH SURFACE LOW-PRESSURE WAVES POSSIBLY MOVING ALONG THE
BOUNDARY INTO THE WESTERN ATLANTIC. THIS MAINTAINS CHANCES FOR SURPLUS
PRECIPITATION EXCEEDING 50 PERCENT IN MUCH OF THE LOWER MISSISSIPPI VALLEY AND
ADJACENT SOUTHEAST, WITH A SLIGHT TILT OF THE ODDS TOWARD ABOVE-PRECIPITATION
EXTENDING NORTHWARD UP THE EAST COAST. ENHANCED ODDS FOR WETTER THAN NORMAL
WEATHER WILL ALSO CONTINUE OVER MOST OF THE HIGH PLAINS AND ADJACENT AREAS AS
PERIODIC UPSLOPE FLOW CONTINUES WITH SURFACE HIGH PRESSURE CENTERED OFF TO THE
NORTH AND EAST. DRY WEATHER WILL CONTINUE TO BE FAVORED IN THE WESTERN CONUS
DOWNSTREAM FROM THE STRONG MID-LEVEL RIDGE AND IN A REGIME WITH DRY SURFACE AIR
PUSHING IN FROM THE EAST. PARTS OF THE UPPER MIDWEST ARE ALSO EXPECTED TO BE
DRIER THAN NORMAL, NEAR THE CENTER OF THE COLD, DRY SURFACE HIGH PRESSURE
SYSTEM.
WITH A STRONG MID-LEVEL RIDGE ESTABLISHED ACROSS ALASKA AND DOMINATING THE
PATTERN THERE DURING WEEK-2, WARMER-THAN-NORMAL CONDITIONS ARE FAVORED
STATEWIDE, INCLUDING PARTS OF THE NORTHERN MAINLAND WHERE COLDER WEEK-2
CONDITIONS WERE ANTICIPATED YESTERDAY. THE PATTERN WILL ALSO KEEP MOIST
SOUTHERLY OR SOUTHEASTERLY SURFACE FLOW ACROSS MOST OF THE STATE, ADVECTING
MOISTURE INTO THE REGION AND FAVORING ABOVE-NORMAL PRECIPITATION IN MOST PLACES.
ABOVE-NORMAL TEMPERATURES CONTINUE TO BE FAVORED FOR THE HAWAIIAN ISLANDS DUE
TO THE INFLUENCE OF POSITIVE SEA SURFACE TEMPERATURE ANOMALIES AROUND THE
ISLANDS. THIS SHOULD ALSO FAVOR WETTER-THAN-NORMAL CONDITIONS OVER CENTRAL AND
NORTHWESTERN PARTS OF THE STATE, BUT THE CONSOLIDATION TOOL SHOWS DRIER
CONDITIONS FARTHER SOUTHEAST, AND THIS IS REFLECTED IN THE OFFICIAL FORECAST
WHICH FAVORS NEAR-NORMAL PRECIPITATION.
THE OFFICIAL 8-14 DAY 500-HPA HEIGHT BLEND CONSISTS OF: 25% OF TODAY'S 6Z GFS
ENSEMBLE MEAN CENTERED ON DAY 11, 15% OF TODAY'S OPERATIONAL 6Z GFS CENTERED ON
DAY 11, 30% OF TODAY'S 0Z EUROPEAN ENSEMBLE MEAN CENTERED ON DAY 11, AND 30% OF
TODAY'S 0Z CANADIAN ENSEMBLE MEAN CENTERED ON DAY 11
FORECAST CONFIDENCE FOR THE 8-14 DAY PERIOD: AVERAGE, 3 OUT OF 5, DUE TO GOOD
AGREEMENT AMONG THE DYNAMICAL MODEL MEAN HEIGHT FORECASTS, OFFSET BY GROWING
DIFFERENCES IN THE FORECAST EVOLUTION OF THE MID-LEVEL PATTERN BY THE ENSEMBLE
MEANS, WHICH RESULTS IN DIFFERENCES AMONG THE VARIOUS TEMPERATURE AND
PRECIPITATION TOOLS.
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
JANUARY 16.
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:
20001227 - 20070124 - 19691230 - 19800122 - 19951221
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:
20070123 - 19800121 - 20001228 - 19951229 - 19691230
6-10 DAY OUTLOOK TABLE
OUTLOOK FOR JAN 16 - 20 2025
STATE TEMP PCPN STATE TEMP PCPN STATE TEMP PCPN
WASHINGTON B B OREGON B B NRN CALIF B B
SRN CALIF B B IDAHO B B NEVADA B B
W MONTANA B N E MONTANA B A WYOMING B A
UTAH B N ARIZONA B A COLORADO B A
NEW MEXICO B A N DAKOTA N N S DAKOTA N B
NEBRASKA B A KANSAS B A OKLAHOMA B A
N TEXAS N A S TEXAS A A W TEXAS N A
MINNESOTA N B IOWA B B MISSOURI B A
ARKANSAS B A LOUISIANA N A WISCONSIN N N
ILLINOIS B N MISSISSIPPI B A MICHIGAN N N
INDIANA B A OHIO B A KENTUCKY B A
TENNESSEE B A ALABAMA B A NEW YORK N A
VERMONT N N NEW HAMP N N MAINE N N
MASS N N CONN N N RHODE IS N N
PENN B A NEW JERSEY B A W VIRGINIA B A
MARYLAND B A DELAWARE B A VIRGINIA B A
N CAROLINA B A S CAROLINA B A GEORGIA B A
FL PNHDL B A FL PENIN B N AK N SLOPE N 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 N A
8-14 DAY OUTLOOK TABLE
OUTLOOK FOR JAN 18 - 24 2025
STATE TEMP PCPN STATE TEMP PCPN STATE TEMP PCPN
WASHINGTON B B OREGON B B NRN CALIF B B
SRN CALIF B B IDAHO B N NEVADA B B
W MONTANA B A E MONTANA B A WYOMING B A
UTAH B N ARIZONA B N COLORADO B A
NEW MEXICO B A N DAKOTA B N S DAKOTA B A
NEBRASKA B A KANSAS B A OKLAHOMA B A
N TEXAS B A S TEXAS B A W TEXAS B A
MINNESOTA B B IOWA B N MISSOURI B A
ARKANSAS B A LOUISIANA B A WISCONSIN B N
ILLINOIS B N MISSISSIPPI B A MICHIGAN B N
INDIANA B A OHIO B A KENTUCKY B A
TENNESSEE B A ALABAMA B A NEW YORK B A
VERMONT B A NEW HAMP B A MAINE B A
MASS B A CONN B A RHODE IS B A
PENN B A NEW JERSEY B A W VIRGINIA B A
MARYLAND B A DELAWARE B A VIRGINIA B A
N CAROLINA B A S CAROLINA B A GEORGIA B A
FL PNHDL B A 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 B N
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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