Alert archive / North Carolina / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 34, NWS Raleigh, NC

April 25, 1989Johnston County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 25, 1989, 10:40 PM EDT for Johnston County, North Carolina. It was in force for 35 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 25, 1989, 10:40 PM EDT (02:40 UTC)
Expired: Apr 25, 1989, 11:15 PM EDT
In force: 35 min
Issued by: NWS Raleigh, NC
Area: Whole counties

County Johnston County, NC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Apr 25, 10:43 PM EDT	Hail 1.25	Johnston, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.7 hours before the alert went out and 152 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: 497 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1856 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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, Apr 25, 6:43 PM EDT, 3 hours 57 minutes before

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Local storm report, Apr 25, 6:45 PM EDT, 3 hours 55 minutes before

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Local storm report, Apr 25, 7:01 PM EDT, 3 hours 39 minutes before

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Local storm report, Apr 25, 7:09 PM EDT, 3 hours 31 minutes before

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Local storm report, Apr 25, 7:33 PM EDT, 3 hours 7 minutes before

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Local storm report, Apr 25, 7:52 PM EDT, 2 hours 48 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
Apr 25, 8:51 PM EDT	Severe Thunderstorm Warning	RAH	Vance	54 min
Apr 25, 9:54 PM EDT	Severe Thunderstorm Warning	RAH	Person	66 min
Apr 25, 10:28 PM EDT	Severe Thunderstorm Warning	RAH	Durham	47 min
Apr 25, 11:07 PM EDT	Severe Thunderstorm Warning	RAH	Wake	53 min
Apr 25, 11:44 PM EDT	Severe Thunderstorm Warning	RAH	Johnston	46 min
Apr 26, 12:33 AM EDT	Severe Thunderstorm Warning	RAH	Johnston	42 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1989 Every severe thunderstorm warning in 1989

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.