Alert archive / North Carolina / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 74, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Apr 21, 2008, 1:09 PM EDT for Wake County, North Carolina. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 21, 2008, 1:09 PM EDT (17:09 UTC)
- Expired
- Apr 21, 2008, 1:29 PM EDT
- In force
- 20 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
County Wake County, NC
The radar
The Raleigh/Durham radar (KRAX), 20 km from the middle of the area, began a volume at 17:10 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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.2 hours before the alert went out and 117 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.
- Mixed-layer CAPE
- 46 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 489 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 21, 12:05 PM EDT, 1 hour 4 minutes earlier.
Area forecast discussion, Apr 21, 12:05 PM EDT, 1 hour 4 minutes before
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</html>Hazardous weather outlook, Apr 21, 10:27 AM EDT, 2 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE RALEIGH NC 1027 AM EDT MON APR 21 2008 NCZ021>023-038-039-073-074-083-220900- FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-STANLY-MONTGOMERY-ANSON- 1027 AM EDT MON APR 21 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. SHOWER ACTIVITY IS EXPECTED TO MOVE INTO THE TRIAD AND WESTERN PIEDMONT THIS AFTERNOON. ALTHOUGH AN ISOLATED THUNDERSTORM CANNOT BE RULED OUT...THE BEST CHANCE FOR THUNDERSTORMS WILL LIKELY REMAIN ALONG AND EAST OF HIGHWAY 1. GIVEN COLD TEMPERATURES ALOFT...ANY HEAVY SHOWER ACTIVITY WILL HAVE THE POTENTIAL TO PRODUCE SMALL HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT WEATHER ASSOCIATED WITH SHOWERS AND THUNDERSTORMS THIS AFTERNOON. NCZ007>011-024>028-040>043-075>078-084>086-088-089-220900- PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-ORANGE-DURHAM-FRANKLIN-NASH- EDGECOMBE-CHATHAM-WAKE-JOHNSTON-WILSON-MOORE-LEE-HARNETT-WAYNE- RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON- 1027 AM EDT MON APR 21 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. THE COMBINATION OF DAYTIME HEATING AND COLD TEMPERATURES ALOFT WILL ALLOW ISOLATED THUNDERSTORMS TO DEVELOP THIS AFTERNOON. ANY STORM THAT DEVELOPS COULD BECOME SEVERE...WITH A PRIMARY THREAT OF LARGE HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT WEATHER ASSOCIATED WITH ANY STORMS THAT DEVELOP THIS AFTERNOON. 21
In the hours before
Special weather statement, Apr 21, 10:50 AM EDT, 2 hours 19 minutes before
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</html>Local storm report, Apr 21, 11:38 AM EDT, 1 hour 31 minutes before
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</html>Special weather statement, Apr 21, 12:19 PM EDT, 50 minutes before
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</html>Special weather statement, Apr 21, 12:23 PM EDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 1223 PM EDT MON APR 21 2008 NCZ077-211700- HARNETT- 1223 PM EDT MON APR 21 2008 ...A THUNDERSTORM WITH SMALL HAIL WILL MOVE SOUTH ACROSS HARNETT COUNTY THROUGH 100 PM EDT... AT 1223 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM WITH SMALL HAIL OVER LILLINGTON...MOVING SOUTH AT 13 MPH. SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...ANDERSON CREEK... AND...TIMBERLAKE. SMALL HAIL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THIS THUNDERSTORM. VINCENT
Special weather statement, Apr 21, 12:50 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 1250 PM EDT MON APR 21 2008 NCZ041-211715- WAKE- 1250 PM EDT MON APR 21 2008 ...A THUNDERSTORM WITH SMALL HAIL WILL MOVE SOUTH ACROSS WAKE COUNTY THROUGH 115 PM EDT... AT 1250 PM EDT...THE PUBLIC REPORTED A THUNDERSTORM WITH ONE HALF INCH HAIL OVER LAKE WHEELER...OR ABOUT OVER CARY...MOVING SOUTHWEST AT 16 MPH. SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...LAKE WHEELER... APEX...HOLLY SPRINGS. SMALL HAIL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THIS THUNDERSTORM. VINCENT
Special weather statement, Apr 21, 1:00 PM EDT, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 100 PM EDT MON APR 21 2008 NCZ076-211730- LEE- 100 PM EDT MON APR 21 2008 ...A THUNDERSTORM WITH ONE HALF INCH HAIL WILL MOVE ACROSS LEE COUNTY THROUGH 130 PM EDT... AT 100 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM WITH PEA TO ONE HALF INCH SIZED HAIL OVER CUMNOCK...OR ABOUT OVER SANFORD...MOVING SOUTH AT 10 MPH. SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...SANFORD...GUM SPRINGS...AND TRAMWAY. SMALL HAIL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THIS THUNDERSTORMS. VINCENT
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 8:30 PM EDT | Flash Flood Warning | RAH | Edgecombe, Halifax | 2 hr |
| Apr 21, 3:43 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 42 min |
| Apr 21, 4:09 PM EDT | Severe Thunderstorm Warning | RAH | Wayne | 51 min |
| Apr 21, 4:31 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 44 min |
| Apr 21, 4:50 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Johnston | 40 min |
| Apr 21, 5:24 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 36 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2008Every severe thunderstorm warning in 2008
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; radar from the NEXRAD Level II archive.