Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 122, NWS Springfield, MO

May 7, 2002Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 7, 2002, 2:56 AM CDT for Phelps 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 7, 2002, 2:56 AM CDT (07:56 UTC)
Expired: May 7, 2002, 3:45 AM CDT
In force: 49 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Phelps County, MO

The radar

The St Louis radar (KLSX), 125 km from the middle of the area, began a volume at 07:57 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 7, 3:11 AM CDT	Thunderstorm Wind 55 E	Rolla, 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 7, 12:45 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.9 hours before the alert went out and 216 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: 2395 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1012 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KSGF 070756
SVRSGF
MOC161-070845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
256 AM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PHELPS COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 345 AM CDT

* AT 255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
  DIXON...OR 15 MILES NORTHWEST OF ROLLA...AND MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   DOOLITTLE...NEWBURG BY 300 AM CDT.
   ROLLA BY 310 AM CDT.
   ST. JAMES BY 320 AM CDT.

THE TOWN OF NORTHWYE IS ALSO IN THE PATH OF THIS STORM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3816 9154 3816 9164 3806 9164 3805 9193
          3801 9204 3761 9204 3761 9183 3779 9181
          3779 9154 3793 9154

LINDENBERG

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 May 6, 2:00 PM CDT, 12 hours 56 minutes earlier.

Area forecast discussion, May 6, 2:00 PM CDT, 12 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
200 PM CDT MON MAY 6 2002

FORECAST CONCERNS: PRECIPITATION CHANCES TUESDAY THROUGH WEDNESDAY
AND TEMPERATURES.

SHOWERS AND THUNDERSTORMS MOVED THROUGH CENTRAL MISSOURI THIS
MORNING...AND PRODUCED AN OUTFLOW BOUNDARY THAT EXTENDED FROM
EMPORIA KANSAS TO SPRINGFIELD THIS AFTERNOON. NOTHING HAD FORMED ON
THAT BOUNDARY...YET.  SCATTERED SHOWERS AND THUNDERSTORMS ALSO MOVED
THROUGH SOUTH CENTRAL MISSOURI THIS MORNING...PRODUCING MARGINALLY
SEVERE HAIL. TEMPERATURES REMAINED IN THE 60S ACROSS CENTRAL
MISSOURI...WITH A GUSTY SOUTH WIND AND READINGS NEAR 80 SOUTH OF THE
BOUNDARY FROM CHANUTE TO JOPLIN. 18Z SOUNDING FROM SPRINGFIELD HAS A
MINIMAL CAPPING INVERSION (0.7C).

PARAMETERS COMING TOGETHER FOR A DOUBLE BARREL WEATHER EVENT
TONIGHT: SCATTERED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS
EVENING...NEAR THE OLD OUTFLOW BOUNDARY. MODERATE RISK FOR
NORTHWESTERN SECTIONS OF THE FORECAST AREA PER STORM PREDICTION
CENTER LOOKS REASONABLE...STRONG 850 MB THETA E CONVERGENCE AT 00Z
OVER EAST CENTRAL KANSAS/WEST CENTRAL MISSOURI HELPING TO INITIATE
THE STORMS.

OVERNIGHT...A THUNDERSTORM COMPLEX WILL DEVELOP IN EASTERN KANSAS
AND MOVE EAST ACROSS CENTRAL MISSOURI. SEVERAL OTHER AREAS OF 850 MB
THETA E CONVERGENCE MOVE THROUGH CENTRAL MISSOURI OVERNIGHT.
PRECIPITABLE WATER VALUES APPROACHING 2.00 INCHES ARE INDICATED
ACROSS CENTRAL MISSOURI. WILL HOIST A FLOOD WATCH FOR CENTRAL
MISSOURI TONIGHT.

WATERS BECOME MUDDIER TUESDAY THROUGH WEDNESDAY...WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS BOTH DAYS. STRONGER AREA OF 850 MB THETA E
CONVERGENCE INDICATED OVER NORTHEAST KANSAS BY 00Z WEDNESDAY. LOW
CHANCE POPS WARRANTED...SINCE BULK OF THE ACTIVITY WILL LIKELY BE TO
OUR NORTH. LINE OF STORMS THEN WILL MOVE THROUGH THE FORECAST AREA
WEDNESDAY NIGHT...ALONG COLD FRONT. HAVE ALSO BUMPED UP TEMPERATURES
WEDNESDAY WITH SOUTH TO SOUTHWEST WIND AND PARTIAL SUNSHINE.

NOT MUCH CHANGE TO THE EXTENDED: ADDED A CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY AND MONDAY...ALTHOUGH EXTENDED MODELS ARE NOT
IN AGREEMENT. 240 HOUR MRF 500 MB HEIGHTS LOOK VERY SIMILAR TO THE
00 HOUR INITIALIZATION. LOOKS LIKE THE HEART OF THE SPRING SEVERE
WEATHER SEASON IS UPON US.

THANKS TO NDFD WFOS FOR IM COORDINATION.

PRELIMINARY ISC GRIDS HAVE BEEN SENT.
FCSTID = 8
SGF   64  79  64  83 /  70  30  30  40
JLN   68  82  66  85 /  70  30  30  40
UNO   64  79  64  82 /  70  30  30  40
VIH   64  78  64  84 /  70  30  30  40
AIZ   64  78  64  84 /  70  30  30  40

.SGF...
MO...FLOOD WATCH TONIGHT FOR ZONES
MOZ055>058...MOZ066>071...MOZ077>081...MOZ083...MOZ089.

KS...FLOOD WATCH TONIGHT FOR ZONES KSZ073...KSZ097.

SUTTON

In the hours before

Special weather statement, May 7, 12:48 AM CDT, 2 hours 8 minutes before

MOZ055>058-066>071-077>083-088>095-071145-

SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1248 AM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
NUMBER 245...IN EFFECT UNTIL 600 AM CDT TUESDAY MORNING. THIS SEVERE
THUNDERSTORM WATCH INCLUDES THE FOLLOWING COUNTIES...

IN MISSOURI:

BARTON...BENTON...CAMDEN...CEDAR...CHRISTIAN...DADE...DALLAS...
DENT...GREENE...HICKORY...JASPER...LACLEDE...LAWRENCE...MARIES...
MILLER...MORGAN...NEWTON...PHELPS...POLK...PULASKI...ST. CLAIR...
TEXAS...VERNON...WEBSTER AND WRIGHT.

SOME CITIES IN THIS SEVERE THUNDERSTORM WATCH INCLUDE BOLIVAR...
CAMDENTON...FORT LEONARD WOOD...HOUSTON...JOPLIN...LEBANON...MOUNT
VERNON...NEOSHO...NEVADA...OSAGE BEACH...OZARK...ROLLA...SPRINGFIELD
AND STOCKTON.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE WEATHER...INCLUDING LARGE HAIL...DAMAGING
WINDS...AND LOCALLY HEAVY RAIN...IN AND CLOSE TO THE WATCH AREA.
WHILE SEVERE WEATHER MAY NOT BE IMMINENT...PERSONS SHOULD REMAIN
ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND LISTEN FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

Local storm report, May 7, 1:33 AM CDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
133 AM CDT TUE MAY 07 2002

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

0125 AM    TIFFIN                    MO   60 MPH TSTM GUST
05/07/02   ST.CLAIR                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0130 AM    LINCOLN                   MO   .75 INCH HAIL
05/07/02   BENTON

Local storm report, May 7, 1:58 AM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
158 AM CDT TUE MAY 07 2002

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

0140 AM    COLE CAMP                 MO   WIND DAMAGE
05/07/02   BENTON                         TREES DOWN INTO POWER
                                          LINES. REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0147 AM    5 NE WARSAW               MO   WIND DAMAGE
05/07/02   BENTON                         ROOF DAMAGED TO A HOME
                                          AND TREES DOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0155 AM    VERSAILLES                MO   60 MPH TSTM GUST
05/07/02   MORGAN                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Local storm report, May 7, 2:06 AM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT...AMMENDED TO INCLUDE DAMAGE
NATIONAL WEATHER SERVICE SPRINGFIELD MO
206 AM CDT TUE MAY 07 2002

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

0155 AM    VERSAILLES                MO   WIND DAMAGE
05/07/02   MORGAN                         TREES DOWN. REPORTED BY
                                          LAW ENFORCEMENT OFFICIAL.

Local storm report, May 7, 2:30 AM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
230 AM CDT TUE MAY 07 2002

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

0204 AM    WHEATLAND                 MO   WIND DAMAGE
05/07/02   HICKORY                        ROOF BLOWN OFF HOME
                                          NEAR WHEATLAND.
                                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0205 AM    5 N CAMDENTON             MO   60 MPH TSTM GUST
05/07/02   CAMDEN                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

Special weather statement, May 7, 2:44 AM CDT, 12 minutes before

MOZ096>098-105-106-071300-

SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE SPRINGFIELD MO
244 AM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
NUMBER 246...IN EFFECT UNTIL 800 AM CDT TUESDAY MORNING. THIS SEVERE
THUNDERSTORM WATCH INCLUDES THE FOLLOWING COUNTIES...

IN MISSOURI:

DOUGLAS...HOWELL...OREGON...OZARK AND SHANNON.

SOME CITIES IN THIS SEVERE THUNDERSTORM WATCH INCLUDE AVA AND WEST
PLAINS.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE WEATHER...INCLUDING LARGE HAIL...DAMAGING
WINDS...AND LOCALLY HEAVY RAIN...IN AND CLOSE TO THE WATCH AREA.
WHILE SEVERE WEATHER MAY NOT BE IMMINENT...PERSONS SHOULD REMAIN
ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND LISTEN FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 12:40 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	50 min
May 7, 12:52 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	53 min
May 7, 1:04 AM CDT	Severe Thunderstorm Warning	SGF	Benton	56 min
May 7, 1:16 AM CDT	Severe Thunderstorm Warning	SGF	Morgan	59 min
May 7, 1:43 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Cedar, Hickory, St. Clair	62 min
May 7, 1:52 AM CDT	Severe Thunderstorm Warning	SGF	Polk	53 min
May 7, 1:58 AM CDT	Severe Thunderstorm Warning	SGF	Miller	47 min
May 7, 2:08 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede	52 min
May 7, 2:25 AM CDT	Severe Thunderstorm Warning	SGF	Maries	65 min
May 7, 2:29 AM CDT	Severe Thunderstorm Warning	SGF	Pulaski	61 min
May 7, 3:01 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede	44 min
May 7, 5:31 AM CDT	Flash Flood Warning	SGF	Maries, Miller, Phelps, Pulaski	6 hr
May 7, 8:45 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	60 min
May 7, 9:05 AM CDT	Severe Thunderstorm Warning	SGF	Miller	55 min
May 7, 9:17 AM CDT	Flash Flood Warning	SGF	Benton, St. Clair	6 hr
May 7, 9:30 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	60 min
May 7, 10:11 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade	49 min
May 7, 10:38 AM CDT	Flash Flood Warning	SGF	Vernon	6 hr
May 7, 11:00 AM CDT	Severe Thunderstorm Warning	SGF	Dade	30 min
May 7, 12:22 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk, Webster	23 min
May 7, 12:46 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	44 min
May 7, 1:02 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Greene, Webster	43 min
May 7, 1:33 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	42 min
May 7, 1:53 PM CDT	Flash Flood Warning	SGF	Texas, Wright	6 hr
May 7, 4:01 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	59 min
May 7, 4:52 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	53 min
May 7, 5:44 PM CDT	Severe Thunderstorm Warning	SGF	Cedar	46 min
May 7, 5:54 PM CDT	Severe Thunderstorm Warning	SGF	Hickory	66 min
May 7, 6:13 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper, Newton	62 min
May 7, 6:48 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas	57 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.