Alert archive / Missouri / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 500, NWS Springfield, MO

July 26, 2008Christian County, Greene County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 26, 2008, 5:50 PM CDT for Christian County, Greene County, Missouri. It was in force for 28 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: Jul 26, 2008, 5:50 PM CDT (22:50 UTC)
Expired: Jul 26, 2008, 6:18 PM CDT
In force: 28 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Christian County, MO, Greene County, MO

The radar

The Springfield radar (KSGF), 18 km from the middle of the area, began a volume at 22:51 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 12:00Z, 10.8 hours before the alert went out and 53 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: 2264 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jul 26, 2:45 PM CDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jul 26, 2:45 PM CDT, 3 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
245 PM CDT SAT JUL 26 2008

.DISCUSSION...

THE WARM AND HUMID AIRMASS THAT MOVED INTO THE REGION OVER THE
PAST SEVERAL DAYS WILL TAKE UP RESIDENCE IN THE OZARKS FOR MUCH OF
THE UPCOMING WEEK. THIS WILL LEAD TO THE CHANCES OF SHOWERS AND
THUNDERSTORMS NEARLY EACH DAY THROUGH FRIDAY. THE REMNANTS OF
HURRICANE DOLLY WILL ALSO PLAY A ROLE IN THE WEATHER FOR THE AREA
TOUGH MODELS ARE IN DISAGREEMENT AS TO WHEN DOLLYS REMNANTS WILL
BEGIN TO SHIFT EAST. IN ADDITION TO THE CHANCES FOR
PRECIPITATION...TEMPERATURES IN THE MID TO UPPER 90S AND HIGH
HUMIDITIES WILL LEAD TO NEAR HEAT ADVISORY VALUES FOR THE
REGION...ESPECIALLY WEST OF HIGHWAY 65.

FOR THE NEXT 24 HOURS THE CONCERNS FOCUS ON A DEVELOPING MCS AND
WHETHER THE LEFT OVER CLOUD COVER WILL KEEP TEMPERATURES DOWN
SUNDAY AFTERNOON. BEGINNING STAGES OF A STORM COMPLEX NOW
DEVELOPING OVER SOUTH CENTRAL NEBRASKA...NORTH CENTRAL KANSAS WILL
LIKELY IMPACT THE OZARKS. FLOW OVER THE TOP OF THE UPPER LEVEL
RIDGE AND SURFACE HIGH BRINGS THE MCS INTO THE AREA LATE THIS
EVENING INTO SUNDAY MORNING. THE STORMS SHOULD HAVE PLENTY OF
INSTABILITY TO WORK WITH WITH CAPE VALUES IN THE 2-3000 J/KG RANGE
AND GOOD LOW LEVEL MOISTURE TO WORK WITH. EXPECT STORM TO BE
STRONG WITH AN ISOLATED SEVERE STORM AS 700MB TEMPERATURES AROUND
12C TEND TO WORK AGAINST THE STORMS.

FOR MONDAY INTO THE END OF THE WORK WEEK...CONCERNS ARE HEAT
INDICES AND REMNANTS OF HURRICANE DOLLY.

THE OZARKS WILL BE UNDER THE INFLUENCE OF THE UPPER LEVEL RIDGE
ALLOWING TEMPERATURES TO REMAIN IN THE MID TO UPPER 90S. HUMIDITY
LEVELS WILL REMAIN HIGH AS LOW LEVEL MOISTURE POOLS ACROSS THE
AREA. THIS WILL PRODUCE HEAT INDEX VALUES IN THE 101 TO 107 DEGREE
RANGE FOR AT LEAST THE WESTERN HALF OF THE CWA. WILL DEFINITELY
NEED TO KEEP AND EYE ON THIS. CURRENT EXPECTATIONS IS THAT HEAT
ADVISORIES WILL BE NEEDED FOR MONDAY AND TUESDAY.

THE REMNANTS OF DOLLY THEN BECOME AN ISSUE SOMEWHERE BETWEEN
TUESDAY AND FRIDAY. THIS IS THE SPREAD OF THE CURRENT MODELS IN
HANDLING THE REMNANTS. THE ECMWF PHASES DOLLY WITH THE UPPER
LEVEL FLOW AND SHIFTS IT EAST OF THE AREA BY THURSDAY MORNING
WHILE THE GFS LINGERS DOLLY WEST OF THE AREA THROUGH FRIDAY AND
THEN SHUNTS THE SYSTEM ACROSS NORTHERN ARKANSAS. SOMEWHERE IN
BETWEEN IS MORE LIKELY AND HAVE KEPT POPS IN THE FORECAST THROUGH
THE EXTENDED PERIOD TO HANDEL THIS.

GFS STILL INDICATING A RETROGRESSION OF THE WESTERN RIDGE BY
THE END OF THE WEEK WHICH WOULD PLACE THE OZARKS IN NORTH TO
NORTHWEST FLOW. THIS WOULD SPELL COOLER AND DRIER WEATHER FOR THE
REGION AT WEEKS END. THIS WOULD BE WELCOME AFTER THE THE HEAT TO
START THE WEEK. WILL HAVE TO SEE IF THIS PANS OUT AND HOPE FOR
COOLER WEATHER.

HATCH

&&

.AVIATION...

FOR THE 18Z TAF PACKAGE...ISOLATED THUNDERSTORMS ARE POSSIBLE
DURING THE LATE AFTERNOON AS INSTABILITY INCREASES WITH THE
HEATING OF THE DAY. DUE TO THE ISOLATED NATURE OF THE EXPECTED
THUNDERSTORMS...HAVE GONE WITH VCTS ONLY AT JOPLIN WHICH IS
CLOSER TO A DIFFUSE AND REMNANT OUTFLOW BOUNDARY.

THUNDERSTORMS COULD AFFECT THE TAF SITES TONIGHT. THIS CHANCE IS
HIGHLY DEPENDENT ON THE DEVELOPMENT OF AN MCS ACROSS THE PLAINS
AND MIGRATING INTO THE OZARKS. RADAR AND SATELLITE TRENDS WILL BE
MONITORED AND TAFS AMENDED ACCORDINGLY BASED UPON CONVECTIVE
DEVELOPMENT IN THE PLAINS. DUE TO LIGHT WINDS AND A MOIST AIRMASS
REMAINING IN PLACE...HAVE GONE WITH MVFR CEILINGS AND LOWER
VISIBILITY AS A RESULT OF THE POTENTIAL OF FOG DEVELOPMENT AROUND
10Z AT KSGF.

ANGLE

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

Hazardous weather outlook, Jul 26, 5:49 PM CDT, 1 minute before

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In the hours before

Special weather statement, Jul 26, 4:32 PM CDT, 1 hour 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
432 PM CDT SAT JUL 26 2008

MOZ089-094-262200-
LAWRENCE MO-DADE MO-
432 PM CDT SAT JUL 26 2008

...SIGNIFICANT WEATHER ALERT FOR NORTH CENTRAL LAWRENCE AND SOUTHERN
DADE COUNTIES UNTIL 500 PM CDT...

AT 429 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR LOCKWOOD...OR 8 MILES SOUTHWEST OF
GREENFIELD...MOVING SOUTHEAST AT 9 MPH.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTH CENTRAL
LAWRENCE AND SOUTHERN DADE COUNTIES...INCLUDING THE TOWNS OF SOUTH
GREENFIELD AND PENNSBORO.

NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS
STORM.

TERRY

Special weather statement, Jul 26, 5:20 PM CDT, 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
520 PM CDT SAT JUL 26 2008

MOZ078-079-088>090-094-262315-
LAWRENCE MO-JASPER MO-GREENE MO-DADE MO-POLK MO-CEDAR MO-
520 PM CDT SAT JUL 26 2008

...SIGNIFICANT WEATHER ALERT FOR DADE...NORTHEASTERN JASPER...
NORTHERN LAWRENCE...SOUTHERN CEDAR...SOUTHERN POLK AND WESTERN GREENE
COUNTIES UNTIL 615 PM CDT...

AT 517 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTHWEST
OF GREENFIELD TO WALNUT GROVE...MOVING NORTHEAST AT 6 MPH. ANOTHER
LINE OF STRONG STORMS EXTENDED FROM 5 MILES SOUTHEAST OF JASPER TO
REPUBLIC...WITH LITTLE TO NO MOVEMENT.

PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE
STORMS.

IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND
STAY AWAY FROM WINDOWS.

TERRY

Local storm report, Jul 26, 5:38 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
538 PM CDT SAT JUL 26 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     TSTM WND DMG     2 S PENNSBORO           37.30N 93.83W
07/26/2008                   DADE               MO   LAW ENFORCEMENT

            POWER LINES AND TREES DOWN ALONG HIGHWAY 39 SOUTH OF
            PENNSBORO

&&

GCLAYCOM

Local storm report, Jul 26, 5:40 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
540 PM CDT SAT JUL 26 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     TSTM WND DMG     3 S LOCKWOOD            37.34N 93.95W
07/26/2008                   DADE               MO   LAW ENFORCEMENT

            TRESS DOWN SOUTH OF LOCKWOOD ALONG HIGHWAY 97

&&

GCLAYCOM

Local storm report, Jul 26, 5:41 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
541 PM CDT SAT JUL 26 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0455 PM     FLASH FLOOD      3 S LOCKWOOD            37.34N 93.95W
07/26/2008                   DADE               MO   LAW ENFORCEMENT

            COUNTY ROAD 182 OFF OF 39 HIGHWAY FLOODED AND CLOSED

&&

GCLAYCOM

Special weather statement, Jul 26, 5:42 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
542 PM CDT SAT JUL 26 2008

MOZ095-262315-
CHRISTIAN MO-
542 PM CDT SAT JUL 26 2008

...SIGNIFICANT WEATHER ALERT FOR CENTRAL CHRISTIAN COUNTY UNTIL 615
PM CDT...

AT 537 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR OZARK...MOVING SOUTHEAST AT 8 MPH.

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS.

WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

TERRY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 7:04 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	56 min
Jul 25, 8:11 PM CDT	Flash Flood Warning	SGF	Miller, Morgan	3 hr
Jul 26, 4:48 PM CDT	Flash Flood Warning	SGF	Dade, Lawrence	6 hr
Jul 26, 5:48 PM CDT	Severe Thunderstorm Warning	SGF	Christian	34 min
Jul 26, 5:59 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	46 min
Jul 26, 6:16 PM CDT	Flash Flood Warning	SGF	Barton, Dade, Jasper, Lawrence, Vernon	6 hr
Jul 26, 6:40 PM CDT	Flash Flood Warning	SGF	Vernon	5 hr
Jul 26, 6:41 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	42 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2008 Every severe thunderstorm warning in 2008

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.