Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 57, NWS Raleigh, NC

April 27, 20114 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 27, 2011, 6:06 PM EDT for 4 counties in North Carolina. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 27, 2011, 6:06 PM EDT (22:06 UTC)
Expired: Apr 27, 2011, 6:38 PM EDT
In force: 32 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Durham County, NC, Granville County, NC, Orange County, NC, Person County, NC

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 27, 1:23 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.1 hours before the alert went out and 99 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: 446 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 564 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

530 
WUUS52 KRAH 272206
SVRRAH
NCC063-077-135-145-272300-
/O.NEW.KRAH.SV.W.0057.110427T2206Z-110427T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
606 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DURHAM COUNTY IN CENTRAL NORTH CAROLINA
  EAST CENTRAL ORANGE COUNTY IN CENTRAL NORTH CAROLINA
  SOUTHEASTERN PERSON COUNTY IN CENTRAL NORTH CAROLINA
  CENTRAL GRANVILLE COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 700 PM EDT.

* AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  SOUTH OF ROUGEMONT...OR 8 MILES NORTH OF DURHAM...AND MOVING
  NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROUGEMONT...
  BUTNER...
  OXFORD...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

PLEASE SEND YOUR REPORTS OF PENNY OR LARGER SIZED HAIL...AS WELL AS
WIND DAMAGE...INCLUDING TREES OR LARGE LIMBS DOWNED BY CALLING THE
NATIONAL WEATHER SERVICE TOLL FREE AT...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3626 7890 3647 7859 3622 7851 3609 7879
      3605 7894 3613 7904
TIME...MOT...LOC 2207Z 235DEG 20KT 3610 7893

$$

WP

2 follow-up statements

091 
WWUS52 KRAH 272227
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
627 PM EDT WED APR 27 2011

NCC135-272237-
/O.CAN.KRAH.SV.W.0057.000000T0000Z-110427T2300Z/
ORANGE NC-
627 PM EDT WED APR 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ORANGE COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT THURSDAY MORNING
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3625 7855 3615 7882 3616 7885 3620 7893
      3626 7890 3647 7859
TIME...MOT...LOC 2227Z 211DEG 24KT 3625 7885

$$

NCC063-077-145-272300-
/O.CON.KRAH.SV.W.0057.000000T0000Z-110427T2300Z/
DURHAM NC-PERSON NC-GRANVILLE NC-
627 PM EDT WED APR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL GRANVILLE...SOUTHEASTERN PERSON AND NORTHERN DURHAM
COUNTIES...

AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR MORIAH...OR 12 MILES NORTHWEST OF CREEDMOOR...MOVING
NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STEM...
BEREA AND OXFORD.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.

REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...
DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT THURSDAY MORNING
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3625 7855 3615 7882 3616 7885 3620 7893
      3626 7890 3647 7859
TIME...MOT...LOC 2227Z 211DEG 24KT 3625 7885

$$

WP

337 
WWUS52 KRAH 272238
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
638 PM EDT WED APR 27 2011

NCC063-077-145-272248-
/O.CAN.KRAH.SV.W.0057.000000T0000Z-110427T2300Z/
DURHAM NC-PERSON NC-GRANVILLE NC-
638 PM EDT WED APR 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GRANVILLE...
SOUTHEASTERN PERSON AND NORTHERN DURHAM COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED 
THEREFORE...THE WARNING HAS BEEN CANCELLED.

TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1 8 6 6...2 1 5...4 3 2 4.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT THURSDAY MORNING
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3625 7855 3615 7882 3616 7885 3620 7893
      3626 7890 3647 7859
TIME...MOT...LOC 2238Z 211DEG 24KT 3631 7880

$$

WP

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 27, 4:06 PM EDT, 2 hours earlier.

Area forecast discussion, Apr 27, 4:06 PM EDT, 2 hours before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
406 PM EDT WED APR 27 2011

.SYNOPSIS...
A STRONG SOUTHERLY FLOW WILL CONTINUE TO PUMP A WARM...VERY MOIST
AIR MASS INTO THE CAROLINAS TONIGHT AHEAD OF A COLD FRONT THAT
WILL CROSS CENTRAL NORTH CAROLINA DURING THE DAY THURSDAY.

&&

.NEAR TERM /THROUGH THURSDAY/...
AS OF 335 PM WEDNESDAY...

TORNADO WATCH 233 HAS BEEN CANCELLED FOR THE ENTIRE COUNTY
WARNING AREA. WEAK WAVE HAS PASSED NORTHEAST OF THE AREA.
SCATTERED THUNDERSTORMS DEVELOPED RAPIDLY THIS AFTERNOON WITH ONE
REPORT OF WIND DAMAGE SO FAR FROM HILLSBOROUGH EARLY ON.

HAVE REMOVED MENTION OF DAMAGING WINDS/LARGE HAIL WITH THE
THUNDERSTORMS THE REST OF THE AFTERNOON. HOWEVER...DID KEEP A
MENTION OF GUSTY WINDS AND SMALL HAIL WITH A LOW CHC POP REST OF
THE AFTERNOON. DOES NOT LOOK LIKE THERE WILL BE ANY ORGANIZED
CONVECTION REST OF THE DAY...BUT THE FORECAST AREA IS RECEIVING A
LOT OF LATE DAY INSOLATION...AND A FEW STORMS MAY FORM ON LEFTOVER
BOUNDARIES.

OTHERWISE...WE ARE EXPECTING A LULL IN THUNDERSTORM ACTIVITY UNTIL
LATER TONIGHT WHEN THE STRONG SHORT WAVE/JET OVER ARKANSAS LIFTS
NORTHEAST THROUGH THE TENNESSEE VALLEY. THIS BRINGS THE FORECAST
AREA UNDER STRONGER UPPER LEVEL DIFFLUENCE AND LARGE SCALE ASCENT
LATE TONIGHT INTO THURSDAY. WIND PROFILES CONTINUE TO BE
IMPRESSIVE...WITH A STRONG LOW LEVEL JET AND SOME VEERING WITH
HEIGHT. CURRENT THINKING IS THAT A SQUALL LINE WILL BE ONGOING AND
MOVING INTO THE WESTERN CWA TOWARD MORNING. MAIN QUESTION IS
WHETHER OR NOT THERE WILL BE MORE DISCRETE CELLS...AND A BETTER
THREAT OF TORNADOES. CURRENT GRIDS ARE INDICATING MORE OF A SQUALL
LINE SCENARIO WITH THE LINE MOVING INTO THE EASTERN CWA BY EARLY
AFTERNOON...WITH DAMAGING WINDS BEING THE MAIN THREAT. FRONT
SHOULD CLEAR THE EASTERN CWA BY EVENING.

HAVE KEPT OVERNIGHT LOWS MILD...UPPER 60S TO LOWER 70S...WITH A
STRONG SOUTH FLOW INTO THE AREA. DESPITE SOME AFTERNOON
SUN...TEMPERATURES WON/T HAVE MUCH TIME TO RECOVER THURSDAY...SO
HAVE KEPT HIGHS IN THE UPPER 70S TO LOWER 80S.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
AS OF 335 PM WEDNESDAY...

AFTER THE FRONTAL PASSAGE EXPECT WINDS TO SHIFT AROUND TO
NORTHWESTERLY AND COLD AIR ADVECTION TO ENSUE THURSDAY NIGHT.
LOWS WILL BE QUITE A BIT COOLER...49 NORTHWEST TO 54 SOUTHEAST.

MID/UPPER LEVEL TROUGH AXIS ALONG WITH A SFC TROUGH IS EXPECTED
TO SWING THROUGH THE AREA ON FRIDAY. HOWEVER... WITH LACK OF ANY
SIGNIFICANT MOISTURE THROUGH THE COLUMN EXPECT WE WILL ONLY SEE
ANY INCREASE IN CLOUD COVER ON FRIDAY AFTERNOON... WITH SKIES
BECOMING CLEAR BY SUNSET WITH THE LOSS OF HEATING AND SUBSIDENCE
BEHIND THE EXITING TROUGH. WITH A DEEP DRY DRY SUB CLOUD LAYER
EXPECTED ALONG WITH A WEST TO WEST-NORTHWESTERLY DOWNSLOPE FLOW...
EXPECT WE WILL SEE HIGH TEMPS IN THE MID 70S ACROSS CENTRAL NC.

DRY HIGH PRESSURE OVER THE REGION FRIDAY NIGHT INTO SATURDAY WILL
BRING CHILLY OVERNIGHT LOWS IN THE 40S...AND THEN SUNNY SKIES AND
HIGHS IN THE UPPER 70S SATURDAY.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
AS OF 1255 PM WEDNESDAY...

GENERALLY FOLLOWING AN HPC SOLUTION HERE WHICH LEANS TOWARD A BLEND
OF THE GFS/ECMWF TO END THE WEEKEND THEN MORE OF AN ENSEMBLE
SOLUTION THEREAFTER.

SAT NIGHT INTO SUNDAY WILL SEE RIDGE OVER THE AREA SHIFTING EAST AS
NEXT STORM SYSTEM WORKS INTO THE CENTRAL U.S. WITH A SPLIT FLOW
REGIME WITH ONE STRONG SHORTWAVE MOVING SLOWLY EAST ACROSS THE UPPER
MIDWEST AND THE SRN STREAM WAVE WORKING INTO THE LOWER MISSOURI
VALLEY AND SRN PLAINS BY MONDAY. AHEAD OF THIS SYSTEM WE SHOULD BE
DRY WITH INCREASING HUMIDITIES...AND TEMPS AS HIGHS BY MONDAY WILL
BE IN THE LOWER TO MID 80S. AS THE SRLY FLOW INCREASES MONDAY AND
THE COLD FRONT PUSHES INTO THE TN/OHIO VALLEYS...THE CHANCE OF
AFTN/EVENING THUNDERSTORMS INCREASES...WITH A BETTER CHANCE ARRIVING
MON NIGHT AS THE FRONT PROGRESSES INTO CENTRAL NORTH CAROLINA.

THE CONFIGURATION OF THE UPPER AIR PATTERN AND FRONT SUGGESTS
POTENTIAL FOR A LINEAR STORM ORGANIZATION...AND SVR POTENTIAL WITH
WIND GUSTS. ALSO...WEAK WAVE OF LOW PRESSURE MOVING ALONG THE FRONT
MONDAY NIGHT COULD BACK THE LOW LVL FLOW ENOUGH TO INCREASE HELICITY
LEADING TO POTENTIAL TORNADIC THREAT. STILL EARLY TO CALL IT...BUT
SEEMS WE COULD BE LOOKING AT SOME SVR WX POTENTIAL IN THE MON-TUE
TIME FRAME...ALTHOUGH IF MAIN LINE COMES IN AT NIGHT...THIS MAY
LIMIT THE THREAT.

SHOULD SEE THINGS GETTING DRIER/COOLER BY MIDWEEK PER ENSEMBLE
SOLUTION...AS HIGH PRESSURE WORKS IN FROM THE WEST. A SLOWER ECWMF
SOLUTION WOULD DELAY THIS BY ANOTHER DAY AS IT TAKES ON A NEG TILT
TO THE UPPER TROUGH HANGING THE SFC FRONT UP ACROSS ERN NC.

&&

.AVIATION /20Z WEDNESDAY THROUGH MONDAY/...
AS OF 200 PM WEDNESDAY...

STRONG TO SEVERE TSRA SCATTERED THIS AFTN BUT AFFECTING AND RDU
ATTM...WITH ANOTHER STORM OVER RWI.

THE STORMS WILL REMAIN SCT THROUGH THE AFTN DIMINISHING THIS
EVENING. OUTSIDE ANY STORMS...VFR CONDITIONS WILL PREVAIL WITH
GUSTY SOUTH WINDS AT 20 TO 25 KNOTS. ANY TSRA WILL BRING
VSBYS/CIGS DOWN TO MVFR OR LOWER AT TIMES...BUT NOT ENOUGH
COVERAGE OR TIME OVER AIRPORT TO FORECAST PREDOMINANT MVFR CONDITIONS.

TONIGHT...LOOK FOR VFR CONDITIONS TO DETERIOTE TO IFR CIGS LATE
THIS EVENING INTO OVERNIGHT BEFORE A COLD FRONT MOVES IN AFTER
MIDNIGHT INTO WRN NC AND TRAVERSES THE STATE INTO THURSDAY. A LINE
OF SHOWERS AND STORMS EXPECTED WITH THIS FRONT AND TIMING
WISE...WILL SEE IMPACTS AT INT/GSO AROUND 12-14Z...RAH/FAY/RWI
AFTER 15Z. WITH THIS EXPECT MVFR CONDITIONS.

WINDS WILL SHIFT TO THE SOUTHWEST AS THE FRONT MOVES THROUGH THEN
WESTERLY BY THU EVENING. WIND SPEEDS DECREASE LATE ON THURSDAY
EVENING AS HIGH PRESSURE BEGINS TO BUILD INTO THE AREA. VFR
CONDITIONS ARE EXPECTED TO RETURN BY THURSDAY EVENING AND CONTINUE
THROUGH AT LEAST THRU THE WEEKEND.

THE NEXT SYSTEM MAY BRING LOWER CIGS MONDAY.

&&

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

&&

SYNOPSIS...99
NEAR TERM...99
SHORT TERM...99
LONG TERM...99
AVIATION...

Hazardous weather outlook, Apr 27, 3:36 PM EDT, 2 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
336 PM EDT WED APR 27 2011

NCZ007>011-021>028-038>043-073>078-083>086-088-089-281945-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE-
ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE-
JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-
RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
336 PM EDT WED APR 27 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH
TONIGHT...WITH THE BEST THREAT COMING AFTER MIDNIGHT. DAMAGING
WINDS AND LARGE HAIL WILL BE THE MAIN THREATS.

MONITOR THE LATEST INFORMATION FROM THE NATIONAL WEATHER SERVICE BY
LISTENING TO NOAA WEATHER RADIO OR BY VISITING OUR WEBSITE AT
HTTP://WEATHER.GOV/RALEIGH. YOU CAN ALSO KEEP UP WITH THE LATEST
WEATHER ON A WEB ENABLED CELL PHONE OR OTHER MOBILE DEVICE BY
VISITING HTTP://MOBILE.WEATHER.GOV.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THURSDAY INTO
THURSDAY EVENING...AS A COLD FRONT MOVES EAST ACROSS CENTRAL NORTH
CAROLINA. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING
DAMAGING STRAIGHT LINE WINDS AND ISOLATED TORNADOES.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED LATER TONIGHT. SPOTTERS SHOULD
STAY TUNED AND REPORT ANY SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

In the hours before

Special weather statement, Apr 27, 1:29 PM EDT, 4 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
129 PM EDT WED APR 27 2011

NCZ007>010-024>026-040-041-271830-
CHATHAM NC-DURHAM NC-FRANKLIN NC-GRANVILLE NC-ORANGE NC-PERSON NC-
VANCE NC-WAKE NC-WARREN NC-
129 PM EDT WED APR 27 2011

...STRONG THUNDERSTORMS WILL AFFECT CHATHAM...DURHAM...FRANKLIN...
GRANVILLE...ORANGE...PERSON...VANCE...WAKE AND WARREN COUNTIES...

AT 128 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 8 MILES
NORTHEAST OF HILLSBOROUGH TO CARY...MOVING NORTHEAST AT 35 MPH.

WIND GUSTS TO 50 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THESE
STORMS.

THESE STORMS WILL BE NEAR ROUGEMONT...GORMAN...BAHAMA...AND RALEIGH
AROUND 140 PM...BUTNER AROUND 145 PM...SURL...AND MORIAH AROUND 150
PM...STEM...CREEDMOOR AND AND FALLS LAKE AROUND 155 PM.

LAT...LON 3615 7815 3563 7879 3616 7910 3655 7860
      3655 7838

EXPERIMENTAL

JJ

Local storm report, Apr 27, 1:39 PM EDT, 4 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
139 PM EDT WED APR 27 2011

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

0110 PM     TSTM WND DMG     HILLSBOROUGH            36.07N 79.10W
04/27/2011                   ORANGE             NC   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN ON ST. MARYS STREET.

&&

WHP

Special weather statement, Apr 27, 4:50 PM EDT, 1 hour 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
ISSUED BY NATIONAL WEATHER SERVICE BLACKSBURG VA
450 PM EDT WED APR 27 2011

NCZ007-008-021>025-041-272200-
PERSON-GRANVILLE-FORSYTH-GUILFORD-ALAMANCE-ORANGE-DURHAM-WAKE-
INCLUDING THE CITIES OF...ROXBORO...OXFORD...WINSTON-SALEM...
GREENSBORO...HIGH POINT...BURLINGTON...CHAPEL HILL...DURHAM...
RALEIGH
450 PM EDT WED APR 27 2011

...STRONG THUNDERSTORMS WILL IMPACT THE NORTHERN PIEDMONT THIS AFTERNOON...

WIDELY SCATTERED THUNDERSTORMS WILL BE DEVELOPING FROM THE
TRIAD...EAST TO THE TRIANGLE AREA THROUGH 6 PM. SOME OF THESE
STORMS COULD PRODUCE GUSTY WINDS IN EXCESS OF 45 MPH...SMALL HAIL
AND TORRENTIAL DOWNPOURS. SOME LOCATIONS THAT MAY SEE THESE STORMS
INCLUDE WINSTON-SALEM...STOKESDALE...BURLINGTON...AND WAKE FOREST.

Local storm report, Apr 27, 6:01 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
601 PM EDT WED APR 27 2011

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

0552 PM     HAIL             SE LEXINGTON            35.81N  80.26W
04/27/2011  E1.00 INCH       DAVIDSON           NC   PUBLIC

&&

EVENT NUMBER RAH1100001

WHP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 1:29 PM EDT	Special Weather Statement	RAH	Durham, Franklin, Granville, Vance, Wake	61 min
Apr 27, 1:36 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Person, Vance, Warren	54 min
Apr 27, 1:41 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Vance, Wake, Warren	64 min
Apr 27, 1:48 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford	57 min
Apr 27, 2:01 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax, Nash	59 min
Apr 27, 2:12 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax, Nash, Wayne, Wilson	42 min
Apr 27, 5:43 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford, Randolph	62 min
Apr 27, 6:17 PM EDT	Tornado Warning	RAH	Forsyth	43 min
Apr 27, 6:19 PM EDT	Tornado Warning	RAH	Davidson, Forsyth, Guilford	41 min
Apr 27, 7:06 PM EDT	Special Weather Statement	RAH	Guilford	39 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2011 Every severe thunderstorm warning in 2011

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.