Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 49, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 20, 2000, 7:35 PM EDT for Alamance County, Guilford County, North Carolina. It was in force for 35 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 20, 2000, 7:35 PM EDT (23:35 UTC)
- Expired
- May 20, 2000, 8:10 PM EDT
- In force
- 35 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Alamance County, NC, Guilford County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 20, 8:00 PM EDT | Thunderstorm Wind 50 E | Hillsborough, NC | Hundreds of people without power as many trees fell into power lines. |
| May 20, 8:10 PM EDT | Thunderstorm Wind 50 E | Burlington, NC | Numerous trees and power lines blown down. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 20, 5:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 11.6 hours before the alert went out and 130 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
- 38 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
769 WUUS52 KRAH 202337 SVRRDU NCC001-081-135-210010- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 735 PM EDT SAT MAY 20 2000 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ALAMANCE COUNTY IN NORTH CAROLINA EAST GUILFORD COUNTY IN NORTH CAROLINA ORANGE COUNTY IN NORTH CAROLINA * UNTIL 810 PM EDT * AT 735 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF ALAMANCE...OR ABOUT 9 MILES SOUTHWEST OF BURLINGTON...MOVING EAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BURLINGTON AT 740 PM EDT SAXAPAHAW...HAW RIVER...GRAHAM AT 745 PM EDT TEER...MEBANE AT 750 PM EDT EFLAND AT 755 PM EDT HILLSBOROUGH AT 800 PM EDT SCHLEY AT 805 PM EDT THIS IS A DANGEROUS STORM. NUMEROUS REPORTS OF LARGE TREES DOWN ON HOMES AS WELL AS POWER OUTAGES HAVE BEEN RECEIVED. SOME FLOODING IS ALSO LIKELY. TAKE COVER FROM THIS STORM TO PROTECT YOUR LIFE LAT...LON 3607 7966 3589 7960 3589 7902 3625 7898
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 6:22 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth | 28 min |
| May 20, 6:36 PM EDT | Severe Thunderstorm Warning | RAH | Davidson | 29 min |
| May 20, 6:50 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth | 35 min |
| May 20, 7:02 PM EDT | Severe Thunderstorm Warning | RAH | Guilford | 28 min |
| May 20, 7:12 PM EDT | Severe Thunderstorm Warning | RAH | Randolph | 33 min |
| May 20, 7:35 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 35 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2000Every severe thunderstorm warning in 2000
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.