Alert archive / Missouri / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 15, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Feb 17, 2009, 11:23 PM CST for Howell County, Ozark County, Missouri. It was in force for 37 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
- Feb 17, 2009, 11:23 PM CST (05:23 UTC)
- Expired
- Feb 18, 2009, 12:00 AM CST
- In force
- 37 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
Counties Howell County, MO, Ozark County, MO
The radar
The Springfield radar (KSGF), 124 km from the middle of the area, began a volume at 05:22 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.4 hours before the alert went out and 147 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- 472 m²/s²
- 0-3 km storm-relative helicity
- 472 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 Feb 17, 9:53 PM CST, 1 hour 30 minutes earlier.
Area forecast discussion, Feb 17, 9:53 PM CST, 1 hour 30 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 953 PM CST TUE FEB 17 2009 ...MESOSCALE CONVECTIVE DISCUSSION... .DISCUSSION... ELEVATED THUNDERSTORMS CONTINUE TO DEVELOP IN NORTHEAST OKLAHOMA AND EXTREME SOUTHERN MISSOURI ASSOCIATED WITH A STRENGTHENING LOW LEVEL JET NEAR 55 KNOTS PER CONWAY PROFILER. THIS LOW LEVEL JET HAS QUICKLY MODIFIED MESOSCALE CONDITIONS WITH 3 HOUR MUCAPE CHANGES OF 600 J/KG NOTED ALONG THE NOSE OF THE JET. ELEVATED THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS IN EXTREME SOUTHERN MISSOURI. UPDATED FORECAST OUT SHORTLY. ANGLE && .AVIATION... SOUTH TO SOUTHWEST SURFACE WINDS WILL REMAIN STRONG AND GUSTY AHEAD OF A FRONT IN THE PLAINS. THIS FRONT WILL MOVE THROUGH SOUTHWEST MISSOURI OVERNIGHT BRINGING A WIND SHIFT TO THE NORTHWEST. A DRY FRONTAL PASSAGE IS EXPECTED AT THE AERODROMES. WIND SHEAR WILL GRADUALLY EASE WITH THE APPROACH AND PASSAGE OF THE FRONT. MVFR CEILINGS WILL GRADUALLY RAISE TO VFR WITH DRIER AIR ADVECTING INTO THE REGION. ANGLE && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. &&
Hazardous weather outlook, Feb 17, 10:00 PM CST, 1 hour 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 1000 PM CST TUE FEB 17 2009 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-190400- 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- 1000 PM CST TUE FEB 17 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...TONIGHT. THUNDERSTORMS ACROSS EXTREME SOUTHERN MISSOURI WILL BE CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND WIND UP TO 60 MPH THROUGH 3 AM. BREEZY CONDITIONS WILL PERSIST NORTH AND WEST OF THE OZARK PLATEAU. LOW PRESSURE OVER THE PLAINS WILL PRODUCE A SOUTH WIND OF 15 TO 30 MPH AT TIMES. PATCHY FOG WILL AFFECT SOUTH CENTRAL MISSOURI TONIGHT. VISIBILITIES WILL BE REDUCED TO NEAR A HALF MILE IN LOCALIZED AREAS...ESPECIALLY IN VALLEYS AND LOW LYING AREAS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. AN UPPER LEVEL DISTURBANCE WILL PUSH THROUGH THE AREA FRIDAY NIGHT AND MAY BRING A BRIEF PERIOD OF LIGHT SNOW TO THE AREA. LITTLE OR NO ACCUMULATION IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT. && 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) ANGLE
In the hours before
Special weather statement, Feb 17, 9:46 PM CST, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 946 PM CST TUE FEB 17 2009 MOZ101>103-180415- STONE MO-BARRY MO-MCDONALD MO- 946 PM CST TUE FEB 17 2009 ...SIGNIFICANT WEATHER ALERT FOR SOUTHEASTERN MCDONALD...SOUTHERN BARRY AND STONE COUNTIES UNTIL 1015 PM CST... AT 945 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR CASSVILLE...MOVING EAST AT 60 MPH. NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM. PEOPLE IN SOUTHEASTERN MCDONALD...SOUTHERN BARRY AND STONE COUNTIES...INCLUDING THE CITIES OF CASSVILLE...WEST BRANSON AND REEDS SPRING...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. BARJENBRUCH
Special weather statement, Feb 17, 10:13 PM CST, 1 hour 10 minutes before
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</html>Local storm report, Feb 17, 10:19 PM CST, 1 hour 4 minutes before
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</html>Special weather statement, Feb 17, 11:02 PM CST, 21 minutes before
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</html>Special weather statement, Feb 17, 11:08 PM CST, 15 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 |
|---|---|---|---|---|
| Feb 17, 10:01 PM CST | Severe Thunderstorm Warning | SGF | Barry, Christian, Stone, Taney | 44 min |
| Feb 17, 10:26 PM CST | Severe Thunderstorm Warning | SGF | Christian, Douglas | 34 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2009Every severe thunderstorm warning in 2009
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; radar from the NEXRAD Level II archive.