Alert archive / Nebraska / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 49, NWS Omaha, NE

May 16, 1999Stanton County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at May 16, 1999, 6:32 AM CDT for Stanton County, Nebraska. It was in force for 63 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: May 16, 1999, 6:32 AM CDT (11:32 UTC)
Expired: May 16, 1999, 7:35 AM CDT
In force: 63 min
Issued by: NWS Omaha, NE
Area: Whole counties

County Stanton County, NE

What was reported inside it

Time	Report	Where	Remark
May 16, 7:15 AM CDT	Hail 0.75	Pilger, NE

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 16, 6:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 11.5 hours before the alert went out and 95 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: 107 J/kg
Mixed-layer CIN: -296 J/kg
Mixed-layer LCL: 866 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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.

NWS Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 16, 3:40 AM CDT, 2 hours 52 minutes earlier.

Area forecast discussion, May 16, 3:40 AM CDT, 2 hours 52 minutes before

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In the hours before

Local storm report, May 16, 12:39 AM CDT, 5 hours 53 minutes before

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Special weather statement, May 16, 1:10 AM CDT, 5 hours 22 minutes before

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Special weather statement, May 16, 1:10 AM CDT, 5 hours 22 minutes before

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Special weather statement, May 16, 5:30 AM CDT, 1 hour 2 minutes before

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Special weather statement, May 16, 5:30 AM CDT, 1 hour 2 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 15, 10:56 PM CDT	Severe Thunderstorm Warning	OAX	Saline	49 min
May 15, 11:06 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte	49 min
May 15, 11:57 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton	48 min
May 16, 6:21 AM CDT	Severe Thunderstorm Warning	OAX	Boone	49 min
May 16, 6:24 AM CDT	Severe Thunderstorm Warning	OAX	Colfax, Platte	51 min
May 16, 6:52 AM CDT	Severe Thunderstorm Warning	OAX	Cuming	48 min
May 16, 2:57 PM CDT	Severe Thunderstorm Warning	OAX	Washington	48 min
May 16, 3:07 PM CDT	Tornado Warning	OAX	Washington	33 min
May 16, 6:27 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha, Pawnee, Richardson	33 min
May 16, 1:05 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	30 min
May 16, 7:33 AM CDT	Severe Thunderstorm Warning	OAX	Monona	32 min
May 16, 2:42 PM CDT	Severe Thunderstorm Warning	OAX	Mills	33 min
May 16, 2:52 PM CDT	Tornado Warning	OAX	Mills	33 min
May 16, 3:19 PM CDT	Severe Thunderstorm Warning	OAX	Monona	36 min
May 16, 3:23 PM CDT	Tornado Warning	OAX	Mills	37 min
May 16, 3:32 PM CDT	Tornado Warning	OAX	Monona	33 min
May 16, 3:37 PM CDT	Tornado Warning	OAX	Harrison	48 min
May 16, 3:47 PM CDT	Tornado Warning	OAX	Pottawattamie	48 min
May 16, 3:56 PM CDT	Tornado Warning	OAX	Mills	34 min
May 16, 4:22 PM CDT	Tornado Warning	OAX	Harrison	48 min
May 16, 4:24 PM CDT	Tornado Warning	OAX	Pottawattamie	51 min
May 16, 4:27 PM CDT	Tornado Warning	OAX	Mills	33 min
May 16, 5:01 PM CDT	Tornado Warning	OAX	Shelby	44 min
May 16, 5:11 PM CDT	Tornado Warning	OAX	Harrison	34 min
May 16, 5:14 PM CDT	Tornado Warning	OAX	Pottawattamie	46 min
May 16, 5:33 PM CDT	Tornado Warning	OAX	Mills	37 min
May 16, 5:45 PM CDT	Severe Thunderstorm Warning	OAX	Shelby	35 min
May 16, 6:00 PM CDT	Tornado Warning	OAX	Pottawattamie	30 min
May 16, 6:11 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery	49 min
May 16, 6:33 PM CDT	Tornado Warning	OAX	Pottawattamie	32 min
May 16, 6:37 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Montgomery	48 min
May 16, 6:43 PM CDT	Flash Flood Warning	OAX	Pottawattamie	6 hr
May 16, 6:55 PM CDT	Tornado Warning	OAX	Mills, Montgomery	35 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 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.