Alert archive / Missouri / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 519, NWS Springfield, MO

August 6, 2008Webster County, Wright County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 6, 2008, 12:22 AM CDT for Webster County, Wright County, Missouri. It was in force for 33 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 6, 2008, 12:22 AM CDT (05:22 UTC)
Expired: Aug 6, 2008, 12:55 AM CDT
In force: 33 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Webster County, MO, Wright County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.4 hours before the alert went out and 108 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: 3732 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1547 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 20 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 Aug 5, 11:54 PM CDT, 28 minutes earlier.

Area forecast discussion, Aug 5, 11:54 PM CDT, 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1154 PM CDT TUE AUG 5 2008

...UPDATE TO AVIATION...

.DISCUSSION...

FORECAST CHALLENGES WITH THIS FORECAST PACKAGE DEAL WITH
TEMPERATURES AND PRECIP CHANCES THROUGH THE REST OF THE WEEK. BIG
TEMPERATURE/PRECIP BUST POTENTIAL THE NEXT COUPLE DAYS.

CURRENTLY...COLD FRONTAL BOUNDARY EXTENDS FROM NORTHERN ILLINOIS
TO NEAR KANSAS CITY...THEN SOUTHWEST INTO CENTRAL KANSAS. NOT A
LOT OF CONVECTION FIRING ALONG THE FRONT AS OF YET. TEMPERATURES
AROUND THE CWA A COUPLE DEGREES COOLER THAN YESTERDAY THIS TIME
WITH LOW TO MID 90S AND CLEAR SKIES. MORNING SGF SOUNDING SHOWING
OVER 5000 J/KG CAPES WITH NO CONVECTIVE INHIBITION...SO THE
ATMOSPHERE IS PRIMED FOR CONVECTIVE DEVELOPMENT. ANY
THUNDERSTORMS THAT DO DEVELOP THIS AFTERNOON SHOULD QUICKLY BECOME
SEVERE WITH DAMAGING WINDS THE PRIMARY THREAT. BELIEVE OUR
NORTHERN COUNTIES IN CENTRAL MISSOURI WILL BE THE FIRST TO SEE
THESE LATER THIS AFTERNOON AS MOSAIC RADAR SHOWING SOME CELLS
DEVELOPING ACROSS NORTHERN MISSOURI.

FRONT CONTINUES TO PUSH SOUTH THIS EVENING AND THUNDERSTORM
COVERAGE SHOULD INCREASE. BEST CHANCES APPEAR TO BE WEDNESDAY
EVENING AS THE FRONT LAYS OUT ACROSS SOUTHERN MISSOURI. GFS
SHOWING SIGNS OF AN MCS DEVELOPING OVER NORTHEAST KANSAS WEDNESDAY
AFTERNOON AND THEN DROPPING SOUTHEASTWARD INTO THE CWA WEDNESDAY
EVENING. MAY NEED TO WATCH FOR SOME FLASH FLOODING FROM THIS
SYSTEM AS HPC GUIDANCE SHOWING WIDESPREAD HALF INCH QPF AMOUNTS.
GFS FORECAST SOUNDINGS SHOWING PWATS NEAR AND SLIGHTLY ABOVE 2
INCHES WEDNESDAY AFTERNOON INTO THURSDAY MORNING. WILL HOLD OFF ON
FLASH FLOOD WATCH FOR NOW. NIGHT SHIFT WILL NEED TO CONSIDER FOR
THE WEDNESDAY MORNING PACKAGE. ONE OTHER ITEM TO MENTION IS THE
TEMPERATURE FORECASTS FROM WEDNESDAY INTO THURSDAY. WIDE RANGE IN
ADVERTISED MOS MAX TEMPERATURES AS MET GUIDANCE GOING FOR MID 80S
AND MAV MID 90S. CERTAINLY DO NOT THINK WE WILL GET BACK INTO THE
MID 90S WITH PRECIP AND CLOUD COVERAGE...SO SPLIT THE DIFFERENCE
BETWEEN THE TWO AND WENT LOW 90S WEDNESDAY AND MID 80S THURSDAY.

BOTH MODELS PUSH FRONT SOUTH FRIDAY MORNING. LOOKING AT FAIRLY DRY
CONDITIONS FRIDAY AND SATURDAY. UPPER LEVEL NORTHWEST FLOW TO
CONTINUE THROUGH SATURDAY. GFS AND ECMWF SHOWING ANOTHER
DISTURBANCE MOVING THROUGH THIS NORTHWEST FLOW SATURDAY EVENING
INTO SUNDAY AND GFS SHOWS SIGNS ONCE AGAIN OF AN MCS DEVELOPING
OVER CENTRAL NEBRASKA/NORTHERN KANSAS...THEN MOVES THE SYSTEM
SOUTHEAST INTO WESTERN MISSOURI/SOUTHEAST KANSAS. WENT WITH LOW
CHANCE POPS SUNDAY AFTERNOON THROUGH MONDAY.

CLAYCOMB

&&

.AVIATION...

FOR THE 0600 UTC KSGF/KJLN TAFS...WEAK FRONT AND/OR OUTFLOW FROM
CONVECTION OVER CENTRAL MO HAS MOVED TO AN AREA JUST NORTH OF THE
TAF SITES. SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG
AND NORTH OF THIS BOUNDARY TONIGHT. WHILE MOST OF THE RAIN WILL
LIKELY STAY NORTH OF KSGF/KJLN THROUGH THE NIGHT...CANT RULE OUT
SOME CONVECTION STRAYING SOUTHWARD. WILL CONTINUE WITH THE TSTMS
IN THE VICINITY OVERNIGHT. BETTER CHANCES FOR THUNDERSTORMS MOVING
FARTHER SOUTH INTO THE MO OZARKS APPEAR TO BE WED AFTERNOON AND
WED NIGHT AS THE FRONT SLOWLY CONTINUES TO MOVE SOUTH THROUGH
SOUTHERN MO. COULD SEE SOME LOWER POST FRONTAL PASSAGE CEILINGS
ESPECIALLY LATE IN THE TAF PERIOD...BUT MORE SO LATE WED NIGHT
INTO THU. DSA

&&

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

Hazardous weather outlook, Aug 6, 12:16 AM CDT, 6 minutes before

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In the hours before

Local storm report, Aug 5, 9:35 PM CDT, 2 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
935 PM CDT TUE AUG 05 2008

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

0920 PM     TSTM WND DMG     4 SE ROLLA              37.91N 91.72W
08/05/2008                   PHELPS             MO   LAW ENFORCEMENT

            DAMAGE TO POWER POLES AND TREES.

&&

DCRAMER

Local storm report, Aug 5, 10:25 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1025 PM CDT TUE AUG 05 2008

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

1014 PM     FLASH FLOOD      3 SW VICHY              38.08N 91.80W
08/05/2008                   MARIES             MO   EMERGENCY MNGR

            THE MARIES COUNTY EMERGENCY MANAGER SURVEYED DANGEROUS
            FLASH FLOODING ON SECTIONS OF COUNTY ROADS 444, 442, 440,
            521, 523, 527, AND 450. THESE ROADS EXTEND ACROSS
            SOUTHERN SECTIONS OF THE COUNTY.

&&

DCRAMER

Local storm report, Aug 5, 10:27 PM CDT, 1 hour 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1027 PM CDT TUE AUG 05 2008

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

0700 PM     TSTM WND DMG     2 SW VICHY              38.09N 91.79W
08/05/2008                   MARIES             MO   EMERGENCY MNGR

            SEVERE THUNDERSTORM WIND GUSTS KNOCKED DOWN SEVERAL TREE
            LIMBS ACROSS SOUTHERN MARIES COUNTY.

&&

DCRAMER

Local storm report, Aug 5, 10:41 PM CDT, 1 hour 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1041 PM CDT TUE AUG 05 2008

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

0915 PM     TSTM WND DMG     1 S DIXON               37.98N  92.09W
08/05/2008                   PULASKI            MO   TRAINED SPOTTER

            TREES DOWN ON HANCOCK RD SOUTH OF DIXON. TIME
            APPROXIMATE.

&&

DSA

Special weather statement, Aug 6, 12:06 AM CDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1206 AM CDT WED AUG 6 2008

MOZ069-080-081-060545-
LACLEDE MO-DALLAS MO-CAMDEN MO-
1206 AM CDT WED AUG 6 2008

...SIGNIFICANT WEATHER ALERT FOR NORTHERN DALLAS...NORTHWESTERN
LACLEDE AND SOUTH CENTRAL CAMDEN COUNTIES UNTIL 1245 AM CDT...

AT 1205 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 6 MILES EAST OF URBANA...OR 14 MILES EAST OF
HERMITAGE...MOVING EAST AT 14 MPH.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTHERN DALLAS...
NORTHWESTERN LACLEDE AND SOUTH CENTRAL CAMDEN COUNTIES...INCLUDING
THE TOWNS OF TUNAS...BRANCH AND LEADMINE.

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

GAGAN

Local storm report, Aug 6, 12:08 AM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1208 AM CDT WED AUG 06 2008

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

1203 AM     HAIL             2 E URBANA              37.84N  93.13W
08/06/2008  E0.70 INCH       DALLAS             MO   TRAINED SPOTTER

            SPOTTER REPORT RELAYED THROUGH DALLAS CO 911.

&&

DSA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 7:07 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas	53 min
Aug 5, 7:13 PM CDT	Flash Flood Warning	SGF	Maries, Phelps	6 hr
Aug 5, 7:24 PM CDT	Severe Thunderstorm Warning	SGF	Miller	66 min
Aug 5, 7:43 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	30 min
Aug 5, 7:46 PM CDT	Severe Thunderstorm Warning	SGF	Pulaski	74 min
Aug 5, 7:52 PM CDT	Severe Thunderstorm Warning	SGF	Dallas	46 min
Aug 5, 8:00 PM CDT	Flash Flood Warning	SGF	Dallas	6 hr
Aug 5, 8:25 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	65 min
Aug 5, 8:34 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller	41 min
Aug 5, 8:47 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	58 min
Aug 5, 9:59 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Pulaski, Texas, Wright	61 min
Aug 5, 10:59 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	30 min
Aug 5, 11:46 PM CDT	Flash Flood Warning	SGF	Laclede	6 hr
Aug 6, 12:43 AM CDT	Areal Flood Warning	SGF	Maries, Phelps	10 hr
Aug 6, 12:58 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	49 min
Aug 6, 1:44 AM CDT	Flash Flood Warning	SGF	Camden, Dallas, Hickory	4 hr
Aug 6, 1:56 AM CDT	Flash Flood Warning	SGF	Vernon	6 hr
Aug 6, 2:35 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Polk, Webster	55 min
Aug 6, 3:04 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene, Webster	27 min
Aug 6, 3:29 AM CDT	Flash Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 28 more	23 hr
Aug 6, 5:12 AM CDT	Areal Flood Warning	SGF	Camden, Dallas, Hickory, Laclede	6 hr
Aug 6, 12:08 PM CDT	Areal Flood Advisory	SGF	Maries	8 hr
Aug 6, 5:05 PM CDT	Flash Flood Warning	SGF	Morgan	6 hr

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.