Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 24, NWS Raleigh, NC

March 21, 1999Franklin County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 21, 1999, 4:41 PM EST for Franklin County, North Carolina. It was in force for 49 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: Mar 21, 1999, 4:41 PM EST (21:41 UTC)
Expired: Mar 21, 1999, 5:30 PM EST
In force: 49 min
Issued by: NWS Raleigh, NC
Area: Whole counties

County Franklin County, NC

What was reported inside it

Time	Report	Where	Remark
Mar 21, 4:57 PM EST	Hail 0.75	Bunn, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 21, 1:30 PM EST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.7 hours before the alert went out and 145 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 586 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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.

In the hours before

Local storm report, Mar 21, 3:34 PM EST, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
334 PM EST SUN MAR 21 1999

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0300 PM    ANDERSON CREEK            NC   .75 INCH HAIL
03/21/99   HARNETT                        HARNETT COUNTY SHERIFFS
                                          OFFICE REPORTED DIME SIZE
                                          HAIL IN ANDERSON CREEK.

0307 PM    FAYETTEVILLE              NC   .75 INCH HAIL
03/21/99   CUMBERLAND                     STATE E.O.C. REPORTED DIME
                                          SIZE HAIL IN NORTHERN
                                          FAYETTEVILLE.

0315 PM    APEX                      NC   .75 INCH HAIL
03/21/99   WAKE                           SKYWARN SPOTTER REPORTED
                                          DIME SIZE HAIL IN APEX AT
                                          THE INTERSECTION OF APEX
                                          ROAD AND BAR-BQ ROAD

Local storm report, Mar 21, 4:05 PM EST, 36 minutes before

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Local storm report, Mar 21, 4:05 PM EST, 36 minutes before

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Local storm report, Mar 21, 4:16 PM EST, 25 minutes before

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Local storm report, Mar 21, 4:29 PM EST, 12 minutes before

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Local storm report, Mar 21, 4:33 PM EST, 8 minutes before

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The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 21, 2:34 PM EST	Severe Thunderstorm Warning	RAH	Cumberland	36 min
Mar 21, 2:38 PM EST	Severe Thunderstorm Warning	RAH	Alamance, Guilford, Randolph	47 min
Mar 21, 2:54 PM EST	Severe Thunderstorm Warning	RAH	Harnett, Wake	46 min
Mar 21, 3:18 PM EST	Severe Thunderstorm Warning	RAH	Cumberland	32 min
Mar 21, 3:38 PM EST	Severe Thunderstorm Warning	RAH	Granville	32 min
Mar 21, 3:44 PM EST	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	61 min
Mar 21, 3:44 PM EST	Severe Thunderstorm Warning	RAH	Sampson	61 min
Mar 21, 4:29 PM EST	Severe Thunderstorm Warning	RAH	Nash, Wilson	61 min
Mar 21, 4:56 PM EST	Severe Thunderstorm Warning	RAH	Wayne	34 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1999 Every 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.