Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 99, NWS Springfield, MO

May 1, 2002Douglas County, Ozark County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 1, 2002, 7:56 PM CDT for Douglas County, Ozark County, Missouri. It was in force for 49 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 1, 2002, 7:56 PM CDT (00:56 UTC)
Expired: May 1, 2002, 8:45 PM CDT
In force: 49 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

Counties Douglas County, MO, Ozark County, MO

The radar

The Springfield radar (KSGF), 83 km from the middle of the area, began a volume at 00:57 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
May 1, 8:20 PM CDT	Thunderstorm Wind 55 E	Ava, 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 1, 7:00 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.9 hours before the alert went out and 107 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: 1175 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1882 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KSGF 020056
SVRSGF
MOC067-153-020145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
756 PM CDT WED MAY 1 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN OZARK COUNTY IN SOUTHWEST MISSOURI
  SOUTHERN DOUGLAS COUNTY IN SOUTHWEST MISSOURI

* UNTIL 845 PM CDT

* AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL TO THE SIZE OF
  NICKELS...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 7 MILES NORTHEAST OF TANEYVILLE...OR 18 MILES SOUTHWEST OF
  AVA...AND MOVING EAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
  OZARK AND DOUGLAS COUNTIES.

THE TOWNS OF GOODHOPE...ROME...SQUIRES...WASOLA AND ROCKBRIDGE ARE
ALSO IN THE PATH OF THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3691 9292 3675 9293 3674 9211 3700 9209

SUTTON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 7:12 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	48 min
May 1, 7:26 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Taney	64 min
May 1, 7:29 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	46 min
May 1, 8:19 PM CDT	Tornado Warning	SGF	Taney	26 min
May 1, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	45 min
May 1, 9:20 PM CDT	Severe Thunderstorm Warning	SGF	Taney	40 min
May 1, 10:05 PM CDT	Severe Thunderstorm Warning	SGF	Howell	25 min
May 1, 10:25 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	65 min
May 2, 4:00 AM CDT	Severe Thunderstorm Warning	SGF	Greene	45 min
May 2, 4:19 AM CDT	Severe Thunderstorm Warning	SGF	Wright	26 min
May 2, 4:31 AM CDT	Severe Thunderstorm Warning	SGF	Texas	14 min
May 2, 4:45 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Texas	30 min
May 2, 6:25 AM CDT	Severe Thunderstorm Warning	SGF	Shannon	20 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2002 Every severe thunderstorm warning in 2002

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.