Alert archive / Missouri / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 168, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at May 8, 2002, 10:46 PM CDT for Dallas County, Polk County, Missouri. It was in force for 44 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 8, 2002, 10:46 PM CDT (03:46 UTC)
- Expired
- May 8, 2002, 11:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Springfield, MO
- Area
- Counties, with a storm outline in the text
Counties Dallas County, MO, Polk County, MO
The radar
The Springfield radar (KSGF), 55 km from the middle of the area, began a volume at 03:48 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 8, 11:00 PM CDT | Thunderstorm Wind 60 E | Buffalo, 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 8, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.8 hours before the alert went out and 104 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.
- Mixed-layer CAPE
- 1675 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 811 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 285 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 2.9
- Supercell composite
- 13.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KSGF 090346 SVRSGF MOC059-167-090430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 1046 PM CDT WED MAY 8 2002 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN POLK COUNTY IN SOUTHWEST MISSOURI DALLAS COUNTY IN SOUTHWEST MISSOURI * UNTIL 1130 PM CDT * AT 1043 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM URBANA TO MORRISVILLE...AND MOVING EAST AT 50 MPH. * THE SEVERE THUNDERSTORMS WILL BE NEAR... BUFFALO BY 1100 PM CDT. THE TOWNS OF POLK...GOODSON...BRIGHTON...HALF WAY AND LOUISBURG ARE ALSO IN THE PATH OF THESE STORMS. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 3782 9335 3742 9344 3748 9283 3792 9287 BOOKBINDER
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 8, 3:04 PM CDT, 7 hours 42 minutes earlier.
Area forecast discussion, May 8, 3:04 PM CDT, 7 hours 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 304 PM CDT WED MAY 8 2002 FORECAST CONCERNS TODAY INCLUDE THREAT FOR SEVERE WEATHER AND HEAVY RAIN TONIGHT AND ANOTHER ROUND OF RAIN BEGINNING ON FRIDAY. SURFACE FRONT ROUGHLY ALONG AN OMA-ICT LINE AT THIS TIME. SATELLITE IS INDICATING CONVECTION ALREADY BEGINNING TO FIRE ALONG THE FRONT. UPPER LEVEL NORTHERN TROUGH EXPECTED TO MOVE THE SURFACE FRONT THROUGH THE AREA OVERNIGHT. WILL KEEP FLASH FLOOD WATCH GOING THROUGH THE EARLY MORNING HOURS. EXPECT A SQUALL LINE TO DEVELOP BY EARLY EVENING AND BEGIN AFFECTING OUR CWA AROUND 00Z. AVN HAS THE FRONT APPROACHING THE AREA BY 06Z AND THROUGH BY 12Z. LOOKS LIKE ONLY ONE ROUND OF THUNDERSTORMS TO DEAL WITH TONIGHT RATHER THAN 2-3. WHILE RAINFALL AMOUNTS COULD BE HEAVY...DO NOT ANTICIPATE AS MUCH RAIN AS LAST NIGHT. ONCE THIS SYSTEM IS THROUGH...THE NEXT CONCERN IS FOR FRIDAY THROUGH MONDAY. AVN IS BRINGING A SERIES OF SHORTWAVES ACROSS THE AREA BEGINNING FRIDAY AFTERNOON. AS SUCH...WILL INTRODUCE POPS IN FOR BOTH FRIDAY AND FRIDAY NIGHT. AFTER THAT...DID NOT MAKE TOO MANY CHANGES TO THE EXTENDED DUE TO ONGOING WEATHER SITUATION. .SGF... MO...FLOOD WATCH UNTIL 700 AM CDT THURSDAY FOR ZONES MOZ055>058... MOZ066>071...MOZ077>083...MOZ088>098...MOZ101>106. KS...FLOOD WATCH UNTIL 700 AM CDT THURSDAY FOR ZONES KSZ073... KSZ097...KSZ101. GAEDE
In the hours before
Special weather statement, May 8, 8:00 PM CDT, 2 hours 46 minutes before
KSZ073-097-101-MOZ055>057-066>069-077>081-088>091-093>095-101>104- 090700- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE SPRINGFIELD MO 800 PM CDT WED MAY 8 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH NUMBER 259...IN EFFECT UNTIL 200 AM CDT THURSDAY MORNING. THIS SEVERE THUNDERSTORM WATCH INCLUDES THE FOLLOWING COUNTIES... IN MISSOURI: BARRY...BARTON...BENTON...CAMDEN...CEDAR...CHRISTIAN...DADE... DALLAS...GREENE...HICKORY...JASPER...LACLEDE...LAWRENCE...MCDONALD... MILLER...MORGAN...NEWTON...POLK...ST. CLAIR...STONE...TANEY...VERNON AND WEBSTER. IN KANSAS: BOURBON...CHEROKEE AND CRAWFORD. SOME CITIES IN THIS SEVERE THUNDERSTORM WATCH INCLUDE BOLIVAR... BRANSON...CAMDENTON...FORT SCOTT...JOPLIN...LEBANON...MONETT...MOUNT VERNON...NEOSHO...NEVADA...OSAGE BEACH...OZARK...PITTSBURG... SPRINGFIELD AND STOCKTON. A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE WEATHER...INCLUDING LARGE HAIL TO THE SIZE OF QUARTERS...DAMAGING WINDS IN EXCESS OF 70 MPH...AND TORRENTIAL RAINFALL...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. BOOKBINDER
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 8:39 PM CDT | Severe Thunderstorm Warning | SGF | Polk | 21 min |
| May 8, 9:40 PM CDT | Severe Thunderstorm Warning | SGF | Barton, Cedar, Dade, St. Clair, Vernon | 65 min |
| May 8, 10:17 PM CDT | Flash Flood Warning | SGF | Barton | 3 hr |
| May 8, 10:27 PM CDT | Flash Flood Warning | SGF | Morgan | 3 hr |
| May 8, 10:31 PM CDT | Severe Thunderstorm Warning | SGF | Newton | 44 min |
| May 8, 10:41 PM CDT | Flash Flood Warning | SGF | Benton | 3 hr |
| May 8, 10:49 PM CDT | Severe Thunderstorm Warning | SGF | Greene | 41 min |
| May 8, 11:38 PM CDT | Flash Flood Warning | SGF | Miller | 3 hr |
| May 9, 12:24 AM CDT | Flash Flood Warning | SGF | Maries, Phelps, Pulaski | 3 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 2002Every 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.