Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 34, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 27, 2010, 5:52 PM EDT for Halifax County, North Carolina. It was in force for 38 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
- May 27, 2010, 5:52 PM EDT (21:52 UTC)
- Expired
- May 27, 2010, 6:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
County Halifax County, NC
The radar
The Norfolk radar (KAKQ), 99 km from the middle of the area, began a volume at 21:52 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
Roanoke, VA (KRNK), launched 12:00Z, 9.9 hours before the alert went out and 195 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
- 538 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1055 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 91 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 May 27, 3:05 PM EDT, 2 hours 47 minutes earlier.
Area forecast discussion, May 27, 3:05 PM EDT, 2 hours 47 minutes before
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</html>Hazardous weather outlook, May 27, 3:10 PM EDT, 2 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 310 PM EDT THU MAY 27 2010 NCZ007>011-021>028-038>043-073>078-083>086-088-089-281130- 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- 310 PM EDT THU MAY 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SHOWERS AND THUNDERSTORMS... SOME STRONG TO SEVERE... ARE EXPECTED TO BECOME NUMEROUS FRIDAY AFTERNOON AND EVENING... AS AS A COLD FRONT DRIFTS SOUTHWESTWARD ACROSS THE AREA. THE MAIN SEVERE WEATHER HAZARDS WILL BE DAMAGING DOWNBURST WINDS AND LARGE HAIL UP TO THE SIZE OF QUARTERS. IN ADDITION... THE EXPECTED SLOW MOVEMENT OF THE SHOWERS AND STORMS WILL RESULT IN LOCALIZED EXCESSIVE RAINFALL AND AN ASSOCIATED RISK OF FLOODING. THE THREAT OF SEVERE THUNDERSTORMS WILL BE GREATEST BETWEEN 2 PM AND 10 PM... BUT THE THREAT OF LOCALIZED FLOODING WILL CONTINUE THROUGHOUT THE NIGHT. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED... PARTICULARLY BETWEEN 2 PM AND 10 PM FRIDAY AFTERNOON AND EVENING. MWS
In the hours before
Special weather statement, May 27, 5:02 PM EDT, 50 minutes before
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</html>The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 5:02 PM EDT | Special Weather Statement | RAH | Halifax | 13 min |
| May 27, 5:19 PM EDT | Special Weather Statement | RAH | Halifax | 26 min |
| May 27, 6:05 PM EDT | Special Weather Statement | RAH | Warren | 25 min |
| May 27, 6:22 PM EDT | Severe Thunderstorm Warning | RAH | Halifax, Warren | 38 min |
| May 27, 6:41 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Halifax, Nash | 25 min |
| May 27, 6:51 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Warren | 39 min |
| May 27, 7:24 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 38 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2010Every severe thunderstorm warning in 2010
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.