Alert archive / Missouri / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 187, NWS Springfield, MO

April 25, 2008Dent County, Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 25, 2008, 5:13 PM CDT for Dent County, Phelps County, Missouri. It was in force for 47 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
Apr 25, 2008, 5:13 PM CDT (22:13 UTC)
Expired
Apr 25, 2008, 6:00 PM CDT
In force
47 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon

Counties Dent County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 136 km from the middle of the area, began a volume at 22:16 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, 10.2 hours before the alert went out and 212 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2008-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 597 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2008-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 457 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
597 J/kg
Mixed-layer CIN
-378 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
457 m²/s²
0-3 km storm-relative helicity
379 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 Apr 25, 3:07 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Apr 25, 3:07 PM CDT, 2 hours 6 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
307 PM CDT FRI APR 25 2008

.DISCUSSION...

A COLD FRONT CONTINUES TO TRACK EAST THROUGH THE MISSOURI OZARKS
ALONG WITH AN ASSOCIATED LINE OF THUNDERSTORMS. THUNDERSTORMS
WILL CONTINUE TO DEVELOP AND STRENGTHEN AS THE FRONT MOVES THROUGH
THE AREA.

SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...

AS OF 2OZ...SURFACE COLD FRONT EXTENDS FROM NEAR IBERIA TO NEAR
SEYMOUR TO NEAR BRANSON. THE POTENTIAL FOR SEVERE THUNDERSTORMS
WILL CONTINUE ALONG AND EAST OF THE FRONT WITH LARGE HAIL AND
DAMAGING WINDS THE MAIN THREATS. A STRONG CAP NEAR 800MB HAS
GRADUALLY WEAKENED THIS AFTERNOON FROM THE HEATING OF THE
DAY...LIFT FROM THE FRONT AND COOLING OF THE MID LEVELS AS AN
UPPER LEVEL TROUGH SWINGS THROUGH THE PLAINS.

BEHIND THE FRONT...COOLER AND DRIER AIR WILL FILTER IN AS SURFACE
HIGH PRESSURE BUILDS INTO THE OZARKS. CLOUDS WILL BE ON THE
DECREASE TONIGHT FROM WEST TO EAST WITH NAM SHOWING STRONG
ISENTROPIC DOWNGLIDE IN THE 300 TO 305K LAYER.

UPPER LEVEL TROUGH WILL TRACK INTO THE GREAT LAKES REGION SATURDAY
WITH ANOTHER SURGE OF COLDER AIR HEADED FOR SOUTHEAST KANSAS AND
THE MISSOURI OZARKS. ASSOCIATED FRONT WILL MOVE THROUGH SATURDAY
NIGHT AND EARLY SUNDAY WITH SCATTERED SHOWERS AND THUNDERSTORMS
POSSIBLE. RAINFALL LOOKS TO BE LIGHT WITH LIMITED MOISTURE AVAILABLE
AFTER TODAYS FRONTAL PASSAGE.

ANGLE

LONG TERM (SUNDAY THROUGH FRIDAY)...

SECONDARY UPPER LOW TO DUMBBELL AROUND MAIN CLOSED LOW ON SUNDAY
KEEPING PRECIPITATION CHANGES ALIVE.  SOME QUESTION CONCERNING
AMOUNT OF INSTABILITY AS MID LEVELS ARE SLOWER TO COOL...HOWEVER
GOOD NEWS IS THAT PRECIPITATION AMOUNTS LOOK TO BE LIMITED.

MODERATE CONFIDENCE IN JUST HOW COLD REGION WILL DROP TO SUNDAY
NIGHT.  WRAP AROUND MOISTURE TO KEEP MEAN RH AT 50% OR GREATER AND
WINDS TO REMAIN AT 5 TO 10 MPH AS CENTER OF SURFACE HIGH SLIDES JUST
WEST OF CWA.  HAVE DROPPED ALREADY COOL LOWS A DEGREE COLDER WITH
LATER RUNS DETERMINING IF THIS WILL NEED TO BE TRENDED STILL
COLDER...MAKING FROST IN VALLEYS AND SHELTERED AREAS A
POSSIBILITY.

CONFIDENCE IN THE LONG TERM ENHANCED BY RUN TO RUN CONSISTENCY OF
ECMWF AND REMAINING DIFFERENCES WITH GFS DIMINISHING.  REGION TO
WITNESS SHORT LIVED RIDGING THROUGH MIDWEEK...THEN NEXT UPPER LOW
DIGS DEEPLY INTO THE ROCKIES.  LEE TROFING AND ASSOCIATED WARM
ADVECTION TO LEAD TO RETURN OF THUNDERSTORM CHANCES LATE WEDNESDAY.
WITH DIGGING UPPER CLOSED LOW AND LOWERING SURFACE PRESSURE OVER
CENTRAL KS...HESITATE TO SAY IT THIS FAR IN ADVANCE BUT SYNOPTIC
SETUP LOOKS FAVORABLE FOR SEVERE WEATHER ON THURSDAY OR FRIDAY.

RUNNELS

&&

.AVIATION...

FOR THE 18Z TAF PACKAGE...COLD FRONT THAT EXTENDS FROM NEAR
WARSAW TO NEOSHO WILL CONTINUE TO TRACK EAST TOWARDS SGF. THE
FRONT IS EXPECTED TO ARRIVE AT SGF NEAR 19Z BRINGING A WIND SHIFT
TO THE WEST AND NORTHWEST ALONG WITH TSRA AND REDUCED VISIBILITY.
WITH THE FRONT EAST OF JLN...WILL ONLY CARRY VCSH WITH MVFR
CEILINGS GRADUALLY RAISING THIS AFTERNOON.

ANGLE/KARDELL

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&
Hazardous weather outlook, Apr 25, 3:50 PM CDT, 1 hour 23 minutes before
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In the hours before

Special weather statement, Apr 25, 1:43 PM CDT, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
143 PM CDT FRI APR 25 2008

MOZ068-069-079-080-251915-
POLK MO-DALLAS MO-HICKORY MO-CAMDEN MO-
143 PM CDT FRI APR 25 2008

...SIGNIFICANT WEATHER ALERT FOR EASTERN HICKORY...EASTERN POLK...
NORTHERN DALLAS AND WEST CENTRAL CAMDEN COUNTIES UNTIL 215 PM CDT...

AT 141 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES NORTHEAST OF BOLIVAR...MOVING NORTHEAST
AT 41 MPH.

PEOPLE IN EASTERN HICKORY...EASTERN POLK...NORTHERN DALLAS AND
WESTERN CAMDEN COUNTIES...INCLUDING THE CITIES OF URBANA AND MACKS
CREEK...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

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

LINDENBERG
Local storm report, Apr 25, 3:51 PM CDT, 1 hour 22 minutes before
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Special weather statement, Apr 25, 5:01 PM CDT, 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:22 PM CDTRiver Flood WarningSGFJasper10 hr
Apr 25, 9:58 AM CDTAreal Flood AdvisorySGFBenton88 min
Apr 25, 10:04 AM CDTAreal Flood AdvisorySGFJasper24 hr
Apr 25, 3:08 PM CDTSevere Thunderstorm WarningSGFCamden, Maries, Miller45 min
Apr 25, 4:18 PM CDTSevere Thunderstorm WarningSGFMaries27 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2008Every 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.