Alert archive / Missouri / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 128, NWS Springfield, MO

June 1, 1999Ozark County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 1, 1999, 4:56 AM CDT for Ozark County, Missouri. It was in force for 64 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: Jun 1, 1999, 4:56 AM CDT (09:56 UTC)
Expired: Jun 1, 1999, 6:00 AM CDT
In force: 64 min
Issued by: NWS Springfield, MO
Area: Whole counties

County Ozark County, MO

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 09:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 1, 5:24 AM CDT	Hail 1	Brixey, MO

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

Springfield, MO (KSGF), launched 00:00Z, 9.9 hours before the alert went out and 124 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: 141 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 1147 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 3:53 AM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jun 1, 3:53 AM CDT, 1 hour 3 minutes before

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The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 1:52 AM CDT	Flash Flood Warning	SGF	Vernon	3 hr
Jun 1, 3:27 AM CDT	Severe Thunderstorm Warning	SGF	Jasper	33 min
Jun 1, 3:50 AM CDT	Flash Flood Warning	SGF	Barton, Dade, Jasper	4 hr
Jun 1, 3:50 AM CDT	Flash Flood Warning	SGF	Cedar	4 hr
Jun 1, 3:24 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk	66 min
Jun 1, 3:34 PM CDT	Severe Thunderstorm Warning	SGF	Dade	36 min
Jun 1, 3:38 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede	67 min
Jun 1, 4:03 PM CDT	Tornado Warning	SGF	Camden, Laclede	52 min
Jun 1, 4:16 PM CDT	Tornado Warning	SGF	Miller	34 min
Jun 1, 4:30 PM CDT	Tornado Warning	SGF	Miller, Pulaski	65 min
Jun 1, 4:49 PM CDT	Tornado Warning	SGF	Dallas, Polk	51 min
Jun 1, 4:49 PM CDT	Tornado Warning	SGF	Webster	51 min
Jun 1, 5:15 PM CDT	Severe Thunderstorm Warning	SGF	Newton	65 min
Jun 1, 5:17 PM CDT	Tornado Warning	SGF	Maries	63 min
Jun 1, 5:33 PM CDT	Tornado Warning	SGF	Phelps, Pulaski	62 min
Jun 1, 5:55 PM CDT	Severe Thunderstorm Warning	SGF	Texas	35 min
Jun 1, 5:57 PM CDT	Severe Thunderstorm Warning	SGF	Greene	33 min
Jun 1, 6:02 PM CDT	Severe Thunderstorm Warning	SGF	Douglas	48 min
Jun 1, 6:40 PM CDT	Tornado Warning	SGF	Phelps	20 min
Jun 1, 6:51 PM CDT	Severe Thunderstorm Warning	SGF	Pulaski	34 min
Jun 1, 1:01 AM CDT	Flash Flood Warning	SGF	Bourbon, Crawford	4 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 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; radar from the NEXRAD Level II archive.