Alert archive / North Carolina / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 374, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 31, 2008, 1:40 PM EDT for Davidson County, Forsyth County, North Carolina. It was in force for 50 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
- Jul 31, 2008, 1:40 PM EDT (17:40 UTC)
- Expired
- Jul 31, 2008, 2:30 PM EDT
- In force
- 50 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Davidson County, NC, Forsyth County, NC
The radar
The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 17:44 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
Newport, NC (KMHX), launched 12:00Z, 5.7 hours before the alert went out and 331 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
- 1212 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 993 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 94 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 Jul 31, 11:00 AM EDT, 2 hours 40 minutes earlier.
Area forecast discussion, Jul 31, 11:00 AM EDT, 2 hours 40 minutes before
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</html>Hazardous weather outlook, Jul 31, 11:31 AM EDT, 2 hours 9 minutes before
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</html>In the hours before
Special weather statement, Jul 31, 12:29 PM EDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 1229 PM EDT THU JUL 31 2008 NCZ021-022-311730- FORSYTH-GUILFORD- 1229 PM EDT THU JUL 31 2008 ...STRONG THUNDERSTORMS WILL MOVE INTO FORSYTH AND GUILFORD COUNTIES THROUGH AROUND 130 PM EDT... AT 1229 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR LAWSONVILLE TO DOBSON...MOVING SOUTHEAST AT 15 MPH. THE STRONG THUNDERSTORMS WILL MOVE INTO THE NORTHERN PORTION OF FORSYTH COUNTY AND WESTERN GUILFORD COUNTY BY 130 PM EDT. GUSTY WINDS OF 40 TO 50 MPH...VERY HEAVY RAIN AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THESE STORMS. THESE WINDS ARE CAPABLE OF BRINGING DOWN LARGE TREE LIMBS. LIGHT OBJECTS SUCH AS TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND AWNINGS COULD BE TOSSED AROUND. THESE THUNDERSTORMS WILL LIKELY PRODUCE NEAR CONTINUOUS LIGHTNING AN EXCESSIVE AMOUNT OF LIGHTNING. WHEN THUNDER ROARS SEEK SHELTER INDOORS AND STAY AWAY FROM THE WINDOWS. DO NOT USE THE TELEPHONE UNLESS IT IS AN EMERGENCY. IF YOU CANNOT SEEK SHELTER INDOORS AUTOMOBILES CAN PROVIDE GOOD SHELTER. JO
Special weather statement, Jul 31, 1:26 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 126 PM EDT THU JUL 31 2008 NCZ021-022-038-311845- DAVIDSON-FORSYTH-GUILFORD- 126 PM EDT THU JUL 31 2008 ...STRONG SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS FORSYTH... GUILFORD AND DAVIDSON COUNTIES THROUGH 245 PM EDT... AT 126 PM EDT...DOPPLER RADAR INDICATED AN EXTENSIVE AREA OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO THE NORTHWEST PIEDMONT JUST WEST OF THE TRIAD. THESE STORMS STRETCHED FROM JUST WEST OF WINSTON SALEM TO NEAR STATESVILLE...MOVING EAST AT 30 MPH. THE STORMS WILL BE NEAR WINSTON SALEM...CLEMMONS...AND STANLEYVILLE BY 145...AND REACH THE LEXINGTON...GREENSBORO...AND HIGH POINT AREAS AROUND 215 PM. GUSTY WINDS OF 30 TO 40 MPH...SMALL HAIL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THESE THUNDERSTORMS. VERY HEAVY RAINFALL EXCEEDING ONE INCH IN AN HOURS TIME MAY BE EXPECTED. DRIVERS SHOULD BE ALERT FOR WATER ON THE ROAD AS WELL AS REDUCED VISIBILITY IN HEAVY RAIN. 13
Special weather statement, Jul 31, 1:32 PM EDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 132 PM EDT THU JUL 31 2008 NCZ007-311830- PERSON- 132 PM EDT THU JUL 31 2008 ...STRONG THUNDERSTORMS WILL MOVE INTO PERSON COUNTY AROUND 230 PM EDT... AT 132 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS NEAR DANVILLE AND STONEVILLE...MOVING EAST AT 30 MPH. THE STRONG THUNDERSTORMS WILL MOVE INTO WESTERN PERSON COUNTY REACHING MAYO LAKE AND CONCORD AROUND 230 PM AND THEN ROXBORO AROUND 245 PM. GUSTY WINDS OF 40 TO 50 MPH...VERY HEAVY RAIN AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THESE STORMS. THESE WINDS ARE CAPABLE OF BRINGING DOWN LARGE TREE LIMBS. LIGHT OBJECTS SUCH AS TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND AWNINGS COULD BE TOSSED AROUND. THESE THUNDERSTORMS WILL ALSO PRODUCING AN EXCESSIVE AMOUNT OF LIGHTNING. WHEN THUNDER IS ROARS...SEEK SHELTER INDOORS AND STAY AWAY FROM THE WINDOWS. DO NOT USE THE TELEPHONE UNLESS IT IS AN EMERGENCY. IF YOU CANNOT SEEK SHELTER INDOORS AUTOMOBILES CAN PROVIDE GOOD SHELTER. JO
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 2:16 PM EDT | Severe Thunderstorm Warning | RAH | Person | 44 min |
| Jul 31, 2:37 PM EDT | Severe Thunderstorm Warning | RAH | Granville | 38 min |
| Jul 31, 3:02 PM EDT | Severe Thunderstorm Warning | RAH | Vance | 43 min |
| Jul 31, 3:20 PM EDT | Severe Thunderstorm Warning | RAH | Warren | 40 min |
| Jul 31, 3:29 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Harnett, Lee | 46 min |
| Jul 31, 3:31 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Johnston, Sampson | 44 min |
| Jul 31, 3:51 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Halifax, Nash | 54 min |
| Jul 31, 3:53 PM EDT | Severe Thunderstorm Warning | RAH | Montgomery, Stanly | 30 min |
| Jul 31, 3:56 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Richmond | 49 min |
| Jul 31, 4:15 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Johnston | 29 min |
| Jul 31, 4:19 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Wilson | 41 min |
| Jul 31, 4:22 PM EDT | Severe Thunderstorm Warning | RAH | Harnett, Lee, Moore | 38 min |
| Jul 31, 4:26 PM EDT | Areal Flood Advisory | RAH | Anson, Richmond, Scotland | 2 hr |
| Jul 31, 4:38 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Halifax | 36 min |
| Jul 31, 4:40 PM EDT | Severe Thunderstorm Warning | RAH | Hoke, Scotland | 50 min |
| Jul 31, 4:46 PM EDT | Severe Thunderstorm Warning | RAH | Richmond | 44 min |
| Jul 31, 5:17 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett, Sampson | 43 min |
| Jul 31, 6:08 PM EDT | Severe Thunderstorm Warning | RAH | Sampson | 52 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.