Alert archive / North Carolina / Areal Flood Advisories in 2014

Areal Flood Advisory 21, NWS Raleigh, NC

May 29, 20144 counties in North Carolina

NWS Raleigh, NC issued this areal flood advisory at May 29, 2014, 3:34 PM EDT for 4 counties in North Carolina. It was in force for 116 min.

The area

The counties it named.

The facts

Issued: May 29, 2014, 3:34 PM EDT (19:34 UTC)
Expired: May 29, 2014, 5:30 PM EDT
In force: 116 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Hoke County, NC, Moore County, NC, Richmond County, NC, Scotland County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 121 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 177 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -65 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Raleigh, NC wrote its last area forecast discussion before this areal flood advisory went out at May 29, 2:53 PM EDT, 41 minutes earlier.

Area forecast discussion, May 29, 2:53 PM EDT, 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
253 PM EDT THU MAY 29 2014

.SYNOPSIS...A COLD FRONT WILL STALL JUST SOUTH OF THE AREA ON
FRIDAY. THEN...HIGH PRESSURE WILL EXTEND INTO THE REGION FROM THE
NORTH OVER THE WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 245 PM THURSDAY...

THE LATEST SURFACE ANALYSIS SHOWS THE BACKDOOR COLD FRONT HAS MOVED
THROUGH THE AREA. SURFACE HIGH PRESSURE CONTINUES TO RIDGE INTO
CENTRAL NC...HELPING MOVE THE FRONT THROUGH THE REGION. LOW CLOUDS
HAVE MADE THEIR WAY THROUGH MUCH OF CENTRAL NC...WHICH MAY KEEP THE
BEST INSTABILITY ACROSS THE FAR SW THIS EVENING. THE BEST CHANCES
FOR CONVECTION ARE ACROSS THE SOUTHWEST WHERE THE RELATIVELY CLEAR
SKIES HAVE ALLOWED FOR THE HIGHEST TEMPS AND DEWPOINTS AND THE BEST
DESTABILIZATION. MLCAPE...1000-1500 J/KG...STRONG LOW LEVEL LAPSE
RATES...AND MARGINAL MID-LEVEL LAPSE RATES ARE ALSO PRESENT. SHEAR
STILL REMAINS WEAK...LESS THAN 20 KTS. AS A RESULT...WHILE AN
ISOLATED DOWNBURST OR STRONG TO SEVERE WIND GUST IS POSSIBLE IN THE
SOUTHWEST...EXPECT MAINLY GARDEN VARIETY SHOWERS AND STORMS. EXPECT
SHOWERS TO CONTINUE ACROSS THE AREA OVERNIGHT...WITH THE BEST
CHANCES SOUTHWEST OF THE TRIANGLE. OVERNIGHT LOWS WILL RANGE FROM
AROUND 60 DEGREES NE TO MID 60S SOUTH.

&&

.SHORT TERM /FRIDAY AND FRIDAY NIGHT/...
AS OF 245 PM THURSDAY...

OVERCAST SKIES FRIDAY MORNING WILL START TO BREAK APART DURING THE
DAY AS THE DRY AIR ADVECTING INTO THE MID LEVELS MIXES DOWN...WITH
MANY PLACES BECOMING PARTLY SUNNY BY THE AFTERNOON. THE FRONTAL
BOUNDARY WILL REAMIN IN THE VICINITY OF CENTRAL NC...WHICH WILL
RESULT IN A TEMP GRADIENT OF APPROX 5-10 DEGREES FROM SW TO NE...
HIGHS MAINLY IN THE MID 70S NE TO MID 80S SW. WITH THE BEST MOISTURE
AND HIGHEST TEMPS IN THE SOUTH AND SOUTHWEST FRIDAY...EXPECT BEST
INSTABILITY AND POTENTIAL FOR CONVECTION THERE. THOUGH THE
ATMOSPHERE WILL CONTINUE TO DRY OUT OVERNIGHT...SOME LOW STRATUS
COULD DEVELOP...MAINLY ACROSS THE SW HALF OF THE AREA. OVERNIGHT
LOWS EXPECTED TO RANGE FROM MID 50S NE TO MID 60S SOUTH.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
AS OF 245 PM THURSDAY...

TO BEGIN THE LONG TERM PERIOD...FAIRLY STRONG HIGH PRESSURE (~1025
MB) WILL BUILD DOWN THE EAST COAST AND PERSIST OVER THE REGION
THROUGH AT LEAST THE WEEKEND. THIS WILL PUSH THE FRONT EVEN FURTHER
SOUTH...WITH DRIER AIR FINALLY ABLE TO FILTER INTO THE AREA.
ALOFT...SHORTWAVE RIDGING WILL BUILD EAST THROUGH EARLY NEXT WEEK.
ALL OF THIS WILL VIRTUALLY BRING AN END TO OUR PRECIP CHANCES WITH
STABLE NORTHEASTERLY FLOW DOMINATING. TEMPS WILL BE SLIGHTLY BELOW
NORMAL OVER THE WEEKEND...WITH HIGHS GENERALLY IN THE UPPER 70S TO
LOWER 80S AND OVERNIGHT LOWS IN THE MID TO UPPER 50S.

SURFACE HIGH PRESSURE WILL THEN SHIFT OFFSHORE BY LATE MONDAY...
ALLOWING THE LOW LEVEL FLOW TO GRADUALLY BECOME MORE SOUTHWESTERLY.
THIS WILL RESULT IN INCREASING MOISTURE...AS WELL AS A MODERATION IN
TEMPS. THERE IS SOME DISAGREEMENT WITH REGARDS TO THE EVOLUTION OF
THE UPPER RIDGE...WITH THE GFS QUICKER TO BREAK IT DOWN AND THE
ECMWF MAINTAINING THE RIDGE OVER THE AREA THROUGH THE MIDDLE OF THE
WEEK. WITH THE FLATTENING OF THE RIDGE DEPICTED BY THE GFS...PRECIP
CHANCES INCREASE AS EARLY AS TUESDAY. THIS MAY BE TOO QUICK (AS THE
GFS ENDS TO BREAK RIDGES DOWN TOO QUICKLY)...THEREFORE WILL HOLD OFF
INTRODUCING DIURNAL SHOWER/THUNDERSTORM ACTIVITY UNTIL WEDNESDAY AND
THEN EVEN MORE SO INTO THURSDAY. TEMPS SHOULD RISE BACK ABOVE
NORMAL...WITH A RETURN TO 90S BY THE MIDDLE OF THE WEEK.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
AS OF 125 PM THURSDAY...

24 HOUR TAF PERIOD: WITH THE EXCEPTION OF TERMINALS IN THE FAR SW...
KFAY...MUCH OF THE AREA IS EXPERIENCING MVFR CIGS AS THE BACKDOOR
COLD FRONT CONTINUES TO PUSH THROUGH CENTRAL NC. SCATTERED SHOWERS
AND STORMS HAVE DEVELOPED WEST AND NORTH OF THE AREA...AND WILL PUSH
EAST OVER THE NEXT SEVERAL HOURS...LIKELY IMPACTING KINT...KGSO...
KRDU...AND KFAY THIS AFT/EVE. ALTHOUGH KINT AND KGSO MAY CONTINUE TO
BOUNCE BETWEEN VFR AND MVFR THIS AFTERNOON...EXPECT MVFR CONDITIONS
TO CONTINUE ACROSS MUCH OF THE AREA THROUGH THIS EVENING. KFAY COULD
POTENTIALLY GO DOWN TO MVFR AS WELL IF THE CLOUDS CONTINUE SLIDING
SOUTHWARD. TONIGHT...EXPECT IFR/LIFT CIGS TO DEVELOP...MAINLY AFTER
00Z FRIDAY...ACROSS THE ENTIRE AREA...AND VISBYS COULD GO DOWN TO
MVFR AS WELL...ESPECIALLY AT LOCATIONS THAT GET RAIN. SHOWERS MAY
LINGER THROUGH THE NIGHT AND INTO FRIDAY...BUT GIVEN THE CURRENT
UNCERTAINTY...WILL KEEP THAT PART OF THE TAFS DRY FOR NOW. SUB-VFR
CEILINGS ARE LIKELY TO PERSIST IN MOST AREAS FRIDAY...WITH GRADUALLY
LIFTING CIGS THROUGH THE LATE MORNING/AFTERNOON.

LOOKING AHEAD: SUB-VFR CEILINGS WILL LIKELY PERSIST THROUGH FRIDAY
NIGHT..ALTHOUGH A PERIOD OF VFR CONDITIONS IS POSSIBLE FRIDAY
AFT/EVE. EXPECT VFR CONDITIONS TO RETURN SAT-MON AS DRY HIGH
PRESSURE EXTENDS INTO THE REGION FROM THE NORTH. THE NEXT CHANCE FOR
SUB-VFR CONDITIONS WILL BE TUESDAY.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

SYNOPSIS...KRD/VINCENT
NEAR TERM...KC
SHORT TERM...KC
LONG TERM...KRD
AVIATION...KC

Hazardous weather outlook, May 29, 4:05 AM EDT, 11 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
405 AM EDT THU MAY 29 2014

NCZ021>023-038>040-073>077-083>086-088-089-300815-
FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-CHATHAM-STANLY-
MONTGOMERY-MOORE-LEE-HARNETT-ANSON-RICHMOND-SCOTLAND-HOKE-CUMBERLAND-
SAMPSON-
405 AM EDT THU MAY 29 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON
AS A BACK DOOR COLD FRONT MOVES INTO CENTRAL NORTH CAROLINA FROM
THE NORTHEAST. AN ISOLATED STORM COULD BECOME SEVERE...WITH A
PRIMARY THREAT OF DAMAGING WINDS. LOCALLY HEAVY RAINFALL COULD
ALSO LEAD TO ISOLATED FLASH FLOODING...PRIMARILY IN URBAN AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

NCZ007>011-024>028-041>043-078-300815-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-ORANGE-DURHAM-FRANKLIN-NASH-
EDGECOMBE-WAKE-JOHNSTON-WILSON-WAYNE-
405 AM EDT THU MAY 29 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

VINCENT

In the hours before

Special weather statement, May 29, 1:38 PM EDT, 1 hour 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
138 PM EDT THU MAY 29 2014

NCZ085-291830-
SCOTLAND-
138 PM EDT THU MAY 29 2014

...SPECIAL WEATHER STATEMENT...

AT 135 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SLOW MOVING SHOWER NEAR LAURINBURG...MOVING EAST AT 10 MPH. RAINFALL
AMOUNTS OF NEAR INCH IS POSSIBLE IN ONE HOUR OR LESS.

LOCATIONS IMPACTED INCLUDE...
LAURINBURG...MAXTON...WAGRAM...GIBSON...EAST LAURINBURG AND LAUREL
HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALLY HEAVY RAIN CAN BE EXPECTED DUE TO THE SLOW MOVEMENT OF THIS
STORM... RESULT IN PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED
TO SLOW DOWN AND USE EXTRA CAUTION TO AVOID HYDROPLANING.
&&

LAT...LON 3480 7967 3483 7963 3482 7962 3483 7962
      3499 7939 3497 7937 3486 7934 3482 7936
      3477 7933 3466 7943 3463 7947
TIME...MOT...LOC 1735Z 263DEG 7KT 3477 7954

23

Special weather statement, May 29, 2:31 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
231 PM EDT THU MAY 29 2014

NCZ085-291930-
SCOTLAND-
231 PM EDT THU MAY 29 2014

...SPECIAL WEATHER STATEMENT...

AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SHOWERS AND THUNDERSTORMS NEAR LAURINBURG...MOVING EAST AT 10
MPH.

LOCATIONS IMPACTED INCLUDE...
LAURINBURG...MAXTON...WAGRAM...GIBSON...EAST LAURINBURG...CAMP
MACKALL...LAUREL HILL AND SANDHILLS GAME LAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

&&

LAT...LON 3481 7969 3483 7963 3482 7962 3485 7963
      3494 7958 3499 7957 3503 7951 3504 7946
      3496 7936 3486 7934 3482 7936 3477 7933
      3463 7946
TIME...MOT...LOC 1830Z 283DEG 10KT 3485 7952

SEC

Special weather statement, May 29, 2:53 PM EDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
253 PM EDT THU MAY 29 2014

NCZ075-085-086-291930-
HOKE-MOORE-SCOTLAND-
253 PM EDT THU MAY 29 2014

...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF SOUTHWESTERN HOKE...
SOUTH CENTRAL MOORE AND NORTHEASTERN SCOTLAND COUNTIES UNTIL 330 PM
EDT...

AT 253 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 8 MILES EAST OF HOFFMAN...OR 10 MILES WEST OF
RAEFORD...MOVING NORTHEAST AT 15 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 40 MPH WILL BE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RAEFORD...ABERDEEN...PINEBLUFF...CAMP MACKALL...ASHLEY HEIGHTS...
BOWMORE AND SANDHILLS GAME LAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.

&&

LAT...LON 3488 7942 3500 7956 3505 7947 3506 7948
      3506 7952 3507 7952 3515 7941 3498 7922
TIME...MOT...LOC 1853Z 235DEG 11KT 3501 7940

23

Local storm report, May 29, 3:32 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
332 PM EDT THU MAY 29 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     HAIL             3 NNE CAMP MACKALL      35.06N  79.44W
05/29/2014  E1.50 INCH       MOORE              NC   PUBLIC

            HAIL UP TO THE SIZE OF PING PONG BALLS AT WALHALLA FARM

&&

EVENT NUMBER RAH1401423

BLS

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 9:27 PM EDT	Special Weather Statement	RAH	Vance, Warren	78 min
May 28, 10:25 PM EDT	Special Weather Statement	RAH	Halifax, Vance, Warren	65 min
May 29, 1:38 PM EDT	Special Weather Statement	RAH	Scotland	52 min
May 29, 2:31 PM EDT	Special Weather Statement	RAH	Scotland	59 min
May 29, 2:53 PM EDT	Special Weather Statement	RAH	Hoke	37 min
May 29, 2:59 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Moore, Richmond, Scotland	46 min
May 29, 4:03 PM EDT	Special Weather Statement	RAH	Richmond	42 min
May 29, 4:11 PM EDT	Severe Thunderstorm Warning	RAH	Richmond	49 min
May 29, 4:22 PM EDT	Severe Thunderstorm Warning	RAH	Stanly	38 min
May 29, 4:24 PM EDT	Areal Flood Advisory	RAH	Richmond	2 hr
May 29, 4:40 PM EDT	Special Weather Statement	RAH	Montgomery	50 min
May 29, 4:45 PM EDT	Areal Flood Advisory	RAH	Montgomery, Richmond, Stanly	2 hr
May 29, 5:14 PM EDT	Special Weather Statement	RAH	Anson	46 min
May 29, 5:26 PM EDT	Special Weather Statement	RAH	Montgomery, Moore	64 min

Nearby

Areal Flood Advisories in North Carolina, 2014 Every areal flood advisory in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.