Alert archive / North Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 33, NWS Raleigh, NC

April 3, 2006Wake County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 3, 2006, 7:29 PM EDT for Wake County, North Carolina. It was in force for 46 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 3, 2006, 7:29 PM EDT (23:29 UTC)
Expired: Apr 3, 2006, 8:15 PM EDT
In force: 46 min
Issued by: NWS Raleigh, NC
Area: Counties, with a storm outline in the text

County Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 31 km from the middle of the area, began a volume at 23:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 3, 7:42 PM EDT	TSTM WND GST 55	Rdu International Airpo, NC
Apr 3, 7:55 PM EDT	TSTM WND GST 50	Rolesville, NC	ROLESVILLE POLICE OFFICERS CAR ALMOST BLOWN OFF THE ROAD
Apr 3, 7:55 PM EDT	TSTM WND GST 60	Rolesville, NC	ROLESVILLE POLICE OFFICERS CAR ALMOST BLOWN OFF THE ROAD
Apr 3, 7:57 PM EDT	TSTM WND DMG	5 E Raleigh, NC	TREE DOWN AND TREE LIMBS 4 TO 5 INCHES IN DIAMETER DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 26 minutes after it went out.

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 3, 4:15 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.5 hours before the alert went out and 109 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1332 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KRAH 032329
SVRRAH
NCC183-040015-
/O.NEW.KRAH.SV.W.0033.060403T2329Z-060404T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
729 PM EDT MON APR 3 2006

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAKE COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 815 PM EDT

* AT 724 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORMS NEAR DURHAM...MOVING SOUTHEAST AT 45 MPH.     
  WINDS IN EXCESS OF 58 MPH ARE LIKELY WITH THIS STORM. THIS STORM   
  HAS ALREADY BLOWN DOWN SEVERAL TREES IN ALAMANCE AND ORANGE        
  COUNTIES. 

* LOCATIONS IMPACTED INCLUDE...
  RDU INTERNATIONAL AIRPORT...MORRISVILLE...
  APEX...CARY...
  FALLS LAKE...
  WAKE FOREST...LAKE WHEELER...
  ROLESVILLE...GARNER...
  KNIGHTDALE...

DAMAGING WINDS OF 58 MPH AND GREATER ARE EXPECTED FROM THIS STORM.
THESE WINDS CAN BLOW DOWN TREES...POWER LINES...AND CAN DAMAGE MOBILE
HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THE STORM HAS PASSED. STAY AWAY FROM WINDOWS AS FLYING DEBRIS
GENERATED BY DAMAGING WINDS CAN BE DEADLY.

LAT...LON 3575 7892 3586 7885 3587 7882 3591 7881
      3590 7877 3593 7873 3597 7870 3604 7871
      3605 7869 3598 7844 3583 7826 3559 7862

$$

JO

2 follow-up statements

000 
WWUS52 KRAH 032354
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
753 PM EDT MON APR 3 2006

NCC183-040015-
/O.CON.KRAH.SV.W.0033.000000T0000Z-060404T0015Z/
WAKE NC-
753 PM EDT MON APR 3 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR WAKE COUNTY...

AT 749 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 58 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM WAKE FOREST TO RALEIGH AND APEX...MOVING SOUTHEAST AT 
50 MPH.

LOCATIONS IN THE PATH OF THE STORM INCLUDE...RALEIGH...NEW 
HOPE...GARNER...KNIGHTDALE AND WENDELL.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. SEEK 
SHELTER INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY EVENING FOR
CENTRAL NORTH CAROLINA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
MIDNIGHT EDT TUESDAY MORNING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3575 7892 3586 7885 3587 7882 3591 7881
      3590 7877 3593 7873 3597 7870 3604 7871
      3605 7869 3598 7844 3583 7826 3559 7862

$$

JO

000 
WWUS52 KRAH 040014 RRA
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
815 PM EDT MON APR 3 2006

NCC183-040025-
/O.EXP.KRAH.SV.W.0033.000000T0000Z-060404T0015Z/
WAKE NC-
815 PM EDT MON APR 3 2006

...THE SEVERE THUNDERSTORM WARNING FOR WAKE COUNTY EXPIRES AT 815 PM
EDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TUESDAY MORNING
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3575 7892 3586 7885 3587 7882 3591 7881
      3590 7877 3593 7873 3597 7870 3604 7871
      3605 7869 3598 7844 3583 7826 3559 7862

$$

JO

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 3, 2:51 PM EDT, 4 hours 38 minutes earlier.

Area forecast discussion, Apr 3, 2:51 PM EDT, 4 hours 38 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
251 PM EDT MON APR 3 2006

.SHORT TERM /TONIGHT THROUGH WEDNESDAY NIGHT/...
CWA CURRENTLY IN MODERATE RISK FOR SVR WX THIS AFTERNOON AND
EVENING. TORNADO WATCH HAS ALREADY BEEN ISSUED SW OF THE CWA IN
WESTERN NC/SC AND NORTHERN GA...WITH ACTIVITY ALREADY DEVELOPING
THIS AFTERNOON IN WESTERN NC/SC...PROGRESSING EASTWARD LATER THIS
AFTERNOON AND EVENING. ATMOSPHERE APPEARS TO BE DESTABILIZING
AGAIN OVER CENTRAL AND WESTERN NC WITH CLOUD COVER BREAKING INTO
PARLTY/MOSTLY SUNNY SKIES IN MANY LOCATIONS (GSO CURRENTLY 76F)
AFTER ROUND OF SHOWERS AND STORMS CROSSED THE AREA THIS MORNING.
SPECIAL 18Z GSO SOUNDING SHOWS STEEP NEAR DRY-ADIABATIC LAPSE
RATES BETWEEN 875-750 MB WITH SHALLOW CAP BETWEEN 900-825 MB.
SOUNDING ALSO SHOWS STRONG LOW-LEVEL SPEED SHEAR WITH 15KT SW
SURFACE WINDS AND 55KT WSW WINDS AT 900 MB. ALTHOUGH SOUNDING IS
QUITE DRY...THE POTENTIAL FOR REALIZING CONVECTIVE INSTABILITY IS
LIKELY WITH STRONG DEEP-LAYER ASCENT AS H3 TROF GOES NEGATIVE
TILT OVER THE REGION AND SFC FRONT CROSSES THE AREA LATER THIS
EVENING...ESPECIALLY IN CENTRAL AND EASTERN PORTIONS OF THE CWA
WHERE DEWPOINTS ARE HIGHER. SHRA/TSRA ACTIVITY SHOULD BE EAST OF
THE CWA BY 03-06Z TONIGHT AS SFC FRONT AND UPPER LEVEL DYNAMICS
MOVE OFF TO THE EAST.

THROUGH TOMORROW...COLD H5 LOW WILL DIVE SOUTHEAST ACROSS THE GREAT
LAKES AND INTO NEW ENGLAND THROUGH TUESDAY AND WEDNESDAY...KEEPING
HIGH/LOW TEMPS BELOW NORMAL THESE DAYS WITH BROAD TROF OVER THE
REGION. H5 RIDGE BEGINS TO ADVECT OVER THE AREA BY LATE
THURSDAY...ALLOWING HIGH/LOW TEMPS TO RETURN TO NORMAL VALUES.
MOSTLY CLEAR SKIES ARE EXPECTED THROUGH THURSDAY AS WEAK HIGH
PRESSURE AND H5 RIDGE BUILD OVER THE AREA.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
UPPER LEVEL RIDGE AXIS SHIFTS EAST AND OVER THE AREA LATE
THURSDAY INTO FRIDAY WITH TEMPS INCREASING INTO THE MID 70S TO
NEAR 80 ON FRIDAY.

NEXT UPPER LEVEL TROF APPROACHES LATE FRIDAY AND MOVES OFFSHORE ON
SATURDAY. DETAILS WITH THIS SYSTEM REMAIN UNCLEAR SO OPTED TO KEEP A
SMALL POP IN FOR FRIDAY NIGHT INTO SATURDAY. THIS SYSTEM DOES NOT
APPEAR TO BE A SIGNIFICANT PRECIP PRODUCER AT THIS POINT.

BACK TO NW FLOW FOR SUN AND MON WITH COOLER TEMPS AND NO PRECIP.

&&

.AVIATION...
EXPECT SCATTERED CLOUDS EARLY THIS AFTERNOON...THEN OCCASIONAL
CEILINGS AT 4-6KFT WITH SHRA/TSRA DEVELOPING BY MID AFTERNOON AS THE
ATMOSPHERE CONTINUES TO DESTABILIZE AHEAD OF THE APPROACHING FRONT.
SOUTHWEST WINDS WILL BE PICKING UP AHEAD OF THE FRONT WITH GUSTS
FROM 20 TO 25 KNOTS. THE TIMING OF THE CONVECTIVE ACTIVITY IS STILL
UNCERTAIN. AS SUCH...WILL ADVERTISE CUMULONIMBUS CLOUDS TO INDICATE
THE POTENTIAL FOR THUNDERSTORMS IN THE TAFS DURING THE 3-4 HOUR
WINDOW WHERE ACTIVITY WILL BE MORE LIKELY. CLOUDS WILL SCATTER
POST-FROPA AROUND 02Z...THEN BECOME CLEAR WITH WESTERLY WINDS
5-10KTS AROUND MIDNIGHT. CONTINUED CLEAR TOMORROW WITH WESTERLY
WINDS 10 TO 15 KTS.

&&

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

SHORT TERM...VINCENT
LONG TERM...BLAES
AVIATION...MLM

Hazardous weather outlook, Apr 3, 1:55 PM EDT, 5 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
155 PM EDT MON APR 3 2006

NCZ007>011-021>028-038>043-073>078-083>086-088-089-040845-
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-
155 PM EDT MON APR 3 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NORTH
CAROLINA.

.DAY ONE...THROUGH TONIGHT

THERE IS A RISK OF SEVERE THUNDERSTORMS THROUGH EARLY THIS EVENING
ACROSS CENTRAL NORTH CAROLINA. THE PRIMARY SEVERE WEATHER THREAT
WILL BE DAMAGING STRAIGHTLINE WINDS AND LARGE HAIL. SCATTERED STRONG
TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP OR MOVE INTO THE
WESTERN PIEDMONT AROUND MID AFTERNOON...THEN MOVE QUICKLY EAST. THE
STORMS SHOULD EXIT THE COASTAL PLAIN COUNTIES OF CENTRAL NORTH
CAROLINA BY 9 PM.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

FIRE WEATHER CONCERNS TUESDAY AS RED FLAG WARNINGS MAY BE NEEDED.
STRONG GUSTY NORTHWEST WINDS AND LOW RELATIVE HUMIDITIES ARE
FORECAST. FUEL MOISTURE LEVELS MAY BE DAMPENED MONDAY... WHICH WOULD
REDUCE THE THREAT OF ADVERSE FIRE BEHAVIOR OR GROWTH.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL LIKELY BE NEEDED BETWEEN 3 PM AND 9
PM.

PWB/WSS

In the hours before

Local storm report, Apr 3, 7:15 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RALEIGH NC
715 PM EDT MON APR 03 2006

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

0710 PM     TSTM WND DMG     BURLINGTON              36.09N 79.44W
04/03/2006                   ALAMANCE           NC   LAW ENFORCEMENT

            TREES BEING REPORTED DOWN ACROSS VARIOUS PORTIONS OF
            ALAMANCE COUNTY.

&&

ORROCK

Local storm report, Apr 3, 7:18 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
718 PM EDT MON APR 03 2006

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

0710 PM     TSTM WND DMG     BURLINGTON              36.09N 79.44W
04/03/2006                   ALAMANCE           NC   PUBLIC

            TREE LIMBS BROKEN

&&

BSD

Special weather statement, Apr 3, 7:22 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
722 PM EDT MON APR 3 2006

NCZ073>075-083>086-040030-
STANLY-MONTGOMERY-MOORE-ANSON-RICHMOND-SCOTLAND-HOKE-
INCLUDING THE CITIES OF...ALBEMARLE...TROY...SOUTHERN PINES...
WADESBORO...ROCKINGHAM...LAURINBURG...RAEFORD
722 PM EDT MON APR 3 2006

SCATTERED STRONG THUNDERSTORMS WILL CROSS THE SOUTHERN PIEDMONT
THROUGH 830 PM EDT...

SCATTERED STRONG THUNDERSTORMS WILL MOVE EAST ACROSS THE SOUTHERN
PIEDMONT OF CENTRAL NORTH CAROLINA. THESE STORMS WILL MOVE EAST 35
MPH. THE STORMS WILL PRODUCE FREQUENT LIGHTNING STRIKES...WIND
GUSTS UP TO 50 MPH...TORRENTIAL DOWNPOURS AND SOME HAIL.

REMEMBER A TORNADO WATCH IS IN EFFECT FOR THE REGIIN UNTIL 12
MIDNIGHT.

Local storm report, Apr 3, 7:23 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
723 PM EDT MON APR 03 2006

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

0721 PM     TSTM WND DMG     CHAPEL HILL             35.93N 79.04W
04/03/2006                   ORANGE             NC   LAW ENFORCEMENT

            TREES BEING REPORTED DOWN IN VARIOUS PORTIONS OF ORANGE
            COUNTY.

&&

ORROCK

Local storm report, Apr 3, 7:27 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
727 PM EDT MON APR 03 2006

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

0654 PM     TSTM WND GST     4 SSW BURLINGTON        36.04N 79.47W
04/03/2006  M0 MPH           ALAMANCE           NC   ASOS

            58 MPH WIND MEASURED BY KBUY ASOS

&&

BSD

Local storm report, Apr 3, 7:27 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE RALEIGH NC
727 PM EDT MON APR 03 2006

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

0654 PM     TSTM WND GST     4 SSW BURLINGTON        36.04N 79.47W
04/03/2006  M58 MPH          ALAMANCE           NC   ASOS

            58 MPH WIND MEASURED BY KBUY ASOS

&&

BSD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 5:18 AM EDT	Severe Thunderstorm Warning	RAH	Person	27 min
Apr 3, 5:53 AM EDT	Severe Thunderstorm Warning	RAH	Granville	22 min
Apr 3, 8:48 AM EDT	Severe Thunderstorm Warning	RAH	Randolph	27 min
Apr 3, 8:59 AM EDT	Severe Thunderstorm Warning	RAH	Chatham	31 min
Apr 3, 9:21 AM EDT	Severe Thunderstorm Warning	RAH	Wake	39 min
Apr 3, 9:48 AM EDT	Severe Thunderstorm Warning	RAH	Chatham	27 min
Apr 3, 10:00 AM EDT	Severe Thunderstorm Warning	RAH	Wake	42 min
Apr 3, 10:12 AM EDT	Severe Thunderstorm Warning	RAH	Franklin	37 min
Apr 3, 12:04 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	26 min
Apr 3, 4:49 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland	41 min
Apr 3, 5:15 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford	30 min
Apr 3, 5:17 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	28 min
Apr 3, 5:41 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth	34 min
Apr 3, 5:45 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	15 min
Apr 3, 6:09 PM EDT	Severe Thunderstorm Warning	RAH	Guilford	51 min
Apr 3, 6:24 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Randolph	36 min
Apr 3, 6:27 PM EDT	Severe Thunderstorm Warning	RAH	Person	63 min
Apr 3, 6:48 PM EDT	Severe Thunderstorm Warning	RAH	Alamance	57 min
Apr 3, 7:15 PM EDT	Severe Thunderstorm Warning	RAH	Orange	45 min
Apr 3, 7:23 PM EDT	Severe Thunderstorm Warning	RAH	Durham	37 min
Apr 3, 7:36 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Vance	24 min
Apr 3, 7:41 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Moore	34 min
Apr 3, 7:43 PM EDT	Severe Thunderstorm Warning	RAH	Franklin	32 min
Apr 3, 7:48 PM EDT	Severe Thunderstorm Warning	RAH	Randolph	27 min
Apr 3, 7:52 PM EDT	Severe Thunderstorm Warning	RAH	Warren	38 min
Apr 3, 7:59 PM EDT	Severe Thunderstorm Warning	RAH	Johnston	46 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2006 Every severe thunderstorm warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.