Alert archive / North Carolina / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 6, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Mar 28, 2009, 4:25 PM EDT for Johnston County, Wayne County, North Carolina. It was in force for 39 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
- Mar 28, 2009, 4:25 PM EDT (20:25 UTC)
- Expired
- Mar 28, 2009, 5:04 PM EDT
- In force
- 39 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Johnston County, NC, Wayne County, NC
The radar
The Raleigh/Durham radar (KRAX), 37 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 140 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
- 630 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 447 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 163 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 Mar 28, 3:05 PM EDT, 1 hour 20 minutes earlier.
Area forecast discussion, Mar 28, 3:05 PM EDT, 1 hour 20 minutes before
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</html>Hazardous weather outlook, Mar 28, 4:25 PM EDT, 0 minutes before
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</html>In the hours before
Special weather statement, Mar 28, 4:15 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 415 PM EDT SAT MAR 28 2009 NCZ042-078-089-282100- JOHNSTON-SAMPSON-WAYNE- 415 PM EDT SAT MAR 28 2009 ...A STRONG THUNDERSTORM WILL MOVE ACROSS EASTERN JOHNSTON...WAYNE AND NORTHERN SAMPSON COUNTIES THROUGH 500 PM EDT... AT 415 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER HOBBTON...OR ABOUT 14 MILES NORTH OF CLINTON...MOVING NORTHEAST AT 35 MPH. SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...GRANTHAM...MAR-MAC... PRINCETON...GOLDSBORO...NAHUNTA...PIKEVILLE...AND...FREMONT. GUSTY WINDS OF 35 TO 45 MPH...VERY HEAVY RAIN AND DANGEROUS CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THIS STORM. 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. BE PREPARED TO TAKE ACTION IN THE EVENT A TORNADO WARNING IS ISSUED. BSD
Nearby
Severe Thunderstorm Warnings in North Carolina, 2009Every severe thunderstorm warning in 2009
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.