Alert archive / Missouri / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 207, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Aug 20, 2010, 1:34 PM CDT for 4 counties in Missouri. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 20, 2010, 1:34 PM CDT (18:34 UTC)
- Expired
- Aug 20, 2010, 2:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
Counties Maries County, MO, Miller County, MO, Phelps County, MO, Pulaski County, MO
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 6.6 hours before the alert went out and 328 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
- 1657 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 1406 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 20, 1:33 PM CDT, 1 minute earlier.
Area forecast discussion, Aug 20, 1:33 PM CDT, 1 minute before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 1205 PM CDT FRI AUG 20 2010 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-211715- BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON- ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS- LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON- LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE- TANEY-OZARK-OREGON- 1205 PM CDT FRI AUG 20 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE HAZARDOUS WEATHER RISK LEVEL IS...SIGNIFICANT. HAZARDS WEATHER RISK... ELEVATED SEVERE THUNDERSTORM WIND RISK. LIMITED TORNADO RISK. LIMITED SEVERE HAIL RISK. SIGNIFICANT LIGHTNING RISK. ELEVATED HEAT RISK. DISCUSSION... THUNDERSTORMS OVER NORTHEAST KANSAS ARE EXPECTED TO INTENSIFY AS A COLD FRONT OVER THE PLAINS MOVES TO THE SOUTHEAST. THIS ACTIVITY IS EXPECTED TO PUSH SOUTHEAST INTO SOUTHEAST KANSAS AND WEST CENTRAL AND CENTRAL MISSOURI AFTER 4 PM. STRONG INSTABILITY COUPLED WITH AT LEAST MODEST VERTICAL SHEAR WILL SUPPORT SEVERE STORMS CAPABLE OF DAMAGING WINDS AND ONE INCH HAIL. OTHER SCATTERED THUNDERSTORMS WILL ALSO BE POSSIBLE WELL AHEAD OF THE FRONT GIVEN STRONG AFTERNOON AND EVENING INSTABILITY COUPLED WITH A WEAK DISTURBANCE MOVING THROUGH SOUTHERN MISSOURI. A FEW STRONG TO SEVERE THUNDERSTORMS WILL ALSO BE POSSIBLE WITH THE AFTERNOON THUNDERSTORMS....MAINLY OVER THE SOUTHERN MISSOURI OZARKS. HEAT INDEX VALUES THIS AFTERNOON WILL RANGE FROM 100 TO 107 DEGREES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. SCATTERED THUNDERSTORMS...SOME STRONG AT TIMES...WILL REMAIN POSSIBLE ACROSS THE REGION THROUGH THE MORNING HOURS SATURDAY BEFORE FINALLY PUSHING SOUTH OF THE OZARKS. THE BETTER CHANCES FOR STRONGER STORMS WILL BE SOUTHEAST OF A BRANSON TO ROLLA LINE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND THIS EVENING. && THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE) DSA
In the hours before
Special weather statement, Aug 20, 10:18 AM CDT, 3 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1018 AM CDT FRI AUG 20 2010 MOZ083-201600- DENT MO- 1018 AM CDT FRI AUG 20 2010 ...SIGNIFICANT WEATHER ALERT FOR EASTERN DENT COUNTY UNTIL 1100 AM CDT... AT 1015 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 4 MILES SOUTHEAST OF JADWIN...OR 13 MILES SOUTH OF SALEM...MOVING NORTHEAST AT 25 MPH. HALF INCH SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM. PEOPLE IN EASTERN DENT COUNTY...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. THIS STORM IS PRODUCING NEARLY CONTINUOUS CLOUD TO GROUND LIGHTNING. SEEK SHELTER INDOORS IMMEDIATELY AND STAY AWAY FROM WINDOWS. WISE
Local storm report, Aug 20, 12:34 PM CDT, 1 hour before
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</html>Local storm report, Aug 20, 12:43 PM CDT, 51 minutes before
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</html>The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 3:19 AM CDT | Heat Advisory | SGF | Barton, Benton, Cedar, Dade, Hickory, Jasper and 4 more | 16 hr |
| Aug 20, 10:20 AM CDT | Severe Thunderstorm Warning | SGF | Dent | 28 min |
| Aug 20, 12:18 PM CDT | Severe Thunderstorm Warning | SGF | Douglas, Howell, Texas, Wright | 57 min |
| Aug 20, 12:58 PM CDT | Severe Thunderstorm Warning | SGF | Laclede, Phelps, Pulaski, Texas, Wright | 52 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2010Every severe thunderstorm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.