Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 12, NWS Newport/Morehead City, NC
NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Apr 11, 1999, 2:38 PM EDT for Dare County, North Carolina. It was in force for 52 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 11, 1999, 2:38 PM EDT (18:38 UTC)
- Expired
- Apr 11, 1999, 3:30 PM EDT
- In force
- 52 min
- Issued by
- NWS Newport/Morehead City, NC
- Area
- Whole counties
County Dare County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 11, 3:15 PM EDT | Thunderstorm Wind 90 | Manteo Arpt, NC |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 6.6 hours before the alert went out and 150 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 884 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 387 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Newport/Morehead City, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 11, 10:25 AM EDT, 4 hours 13 minutes earlier.
Area forecast discussion, Apr 11, 10:25 AM EDT, 4 hours 13 minutes before
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</html>In the hours before
Special weather statement, Apr 11, 12:45 PM EDT, 1 hour 53 minutes before
NCZ029-044>047-079>081-090>095-098-103-104-112200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC 1245 PM EDT SUN APR 11 1999 ...SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN NORTH CAROLINA LATE THIS AFTERNOON INTO TONIGHT... A WARM FRONT HAS MOVED NORTH OF THE AREA AND WITH DECREASING CLOUDINESS TEMPERATURES WILL WARM INTO THE MID 70S. AFTERNOON SUNSHINE WILL HELP TO DESTABILIZE THE ATMOSPHERE AS A COLD FRONT APPROACHES FROM THE WEST. THIS COLD FRONT COULD BECOME A TRIGGER MECHANISM FOR SEVERE THUNDERSTORMS LATE THIS AFTERNOON INTO TONIGHT. THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE DAMAGING WIND GUSTS AND LARGE HAIL UP 1 INCH DIAMETER OR GREATER. REMEMBER ALSO THAT LIGHTNING IS AN UNDERRATED KILLER. AVOID STANDING ON WET GROUND OR NEAR TALL OBJECTS WHEN YOU BEGIN HEARING THUNDER. KEEP AN EYE ON THE SKIES LATER THIS AFTERNOON AND EVENING... ESPECIALLY IF OUTDOOR ACTIVITIES ARE PLANNED. TUNE INTO LOCAL MEDIA SOURCES AND KEEP YOURSELF IN THE KNOW CONCERNING THIS POTENTIAL THREAT.
The office that day
Everything else NWS Newport/Morehead City, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 3:28 PM EDT | Severe Thunderstorm Warning | MHX | Greene, Pitt | 47 min |
| Apr 11, 3:59 PM EDT | Tornado Warning | MHX | Pitt | 31 min |
| Apr 11, 4:01 PM EDT | Tornado Warning | MHX | Lenoir | 29 min |
| Apr 11, 4:34 PM EDT | Tornado Warning | MHX | Craven | 41 min |
| Apr 11, 5:14 PM EDT | Tornado Warning | MHX | Craven | 31 min |
| Apr 11, 5:27 PM EDT | Tornado Warning | MHX | Pamlico | 33 min |
| Apr 11, 5:36 PM EDT | Severe Thunderstorm Warning | MHX | Duplin | 39 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.