Alert archive / Missouri / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 87, NWS Springfield, MO

May 25, 2007Greene County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 25, 2007, 12:42 PM CDT for Greene County, Missouri. It was in force for 10 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 25, 2007, 12:42 PM CDT (17:42 UTC)
Expired: May 25, 2007, 12:52 PM CDT
In force: 10 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Greene County, MO

The radar

The Springfield radar (KSGF), 23 km from the middle of the area, began a volume at 17:45 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 5.7 hours before the alert went out and 74 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: 164 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 844 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KSGF 251742
SVRSGF
MOC077-251845-
/O.NEW.KSGF.SV.W.0087.070525T1742Z-070525T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1242 PM CDT FRI MAY 25 2007

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GREENE COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 145 PM CDT.

* AT 1240 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR BASSVILLE...OR 6 MILES NORTH OF
  STRAFFORD...MOVING NORTHEAST AT 15 MPH. THIS STORM IS CAPABLE OF
  PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  NORTHEASTERN GREENE COUNTY. THIS ALSO INCLUDES INTERSTATE 44
  BETWEEN MILE MARKERS 86 AND 90.

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS.

LAT...LON 3726 9315 3735 9328 3740 9324 3741 9324
      3740 9321 3740 9308 3727 9309 3725 9312

$$

CRAMER

1 follow-up statement

000 
WWUS53 KSGF 251752
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1252 PM CDT FRI MAY 25 2007

MOC077-251802-
/O.CAN.KSGF.SV.W.0087.000000T0000Z-070525T1845Z/
GREENE MO-
1252 PM CDT FRI MAY 25 2007

...THE SEVERE THUNDERSTORM WARNING FOR GREENE COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

LAT...LON 3726 9315 3735 9328 3740 9324 3741 9324
      3740 9321 3740 9308 3727 9309 3725 9312

$$

CRAMER

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 May 25, 6:15 AM CDT, 6 hours 27 minutes earlier.

Area forecast discussion, May 25, 6:15 AM CDT, 6 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
615 AM CDT FRI MAY 25 2007

UPDATED AVIATION DISCUSSION

.DISCUSSION...

CURRENTLY...WEAK SURFACE FRONT EXTENDING FROM CENTRAL ILLINOIS
SOUTHWEST TO SPRINGFIELD...THEN INTO CENTRAL OKLAHOMA. SOME SHOWER
ACTIVITY DEVELOPING ALONG THE FRONT ACROSS EAST CENTRAL MISSOURI
THIS MORNING. FRONT FORECAST TO REMAIN OVER SOUTHERN MISSOURI
THROUGH THE NEXT 24 TO 36 HOURS AND SERVING AS THE FOCUSING
MECHANISM FOR SCATTERED SHOWERS AND THUNDERSTORMS. WRF SHOWING CAPES
THIS AFTERNOON AROUND 500-600 J/KG. WITH WEAK SHEAR...WEAK WINDS
ALOFT AND CLOUD COVER...WOULD NOT EXPECT MUCH IN THE WAY OF SEVERE
THUNDERSTORMS TODAY. LOOKS LIKE THUNDERSTORMS COULD GIVE US SOME
GOOD RAINFALL AMOUNTS AS THEY WOULD BE MOVING VERY SLOWLY...SO MAIN
THREAT TODAY WOULD BE ISOLATED FLASH FLOODING.

FRONT BEGINS TO PUSH NORTH SATURDAY INTO CENTRAL MISSOURI BY THE
AFTERNOON. CONTINUE TO SEE LACK OF ANY STRONG WINDS THROUGH THE
COLUMN...SO STORMS WILL CONTINUE TO BE SLOW MOVERS. GFS SOUNDINGS
SHOWING PWATS UP TO 1.60 INCHES SATURDAY AFTERNOON ACROSS THE
CWA...WITH HIGH/SKINNY CAPE PROFILE THAT WOULD INDICATE STORMS TO BE
EFFICIENT RAIN PRODUCERS. SO WILL POSSIBLE HEAVY RAIN IN HWO. FRONT
STALLS OUT OVER NORTHERN MISSOURI SUNDAY BEFORE PUSHING OFF TO THE
NORTHEAST MONDAY. WITH SUMMERTIME PATTERN IN PLACE...KEPT CHANCE
POPS THROUGH THE FORECAST PERIOD WITH BEST CHANCE OF ANY PRECIP
DRIVEN BY AFTERNOON HEATING.

GCC

&&

.AVIATION...
FOR THE 1200 UTC KSGF/KJLN TAFS...IFR CONDITIONS DEVELOPED OVER
NORTHEAST OK/SOUTHEAST KS/SOUTHWEST MO LAST NIGHT. THE CLOUDS AND
FOG HAVE BEEN FAIRLY SHALLOW...AND ONLY SLOWLY ADVECTING EAST AND
NORTHEAST UP THE MO OZARK PLATEAU...REACHING THE SPRINGFIELD AREA
WITH IN THE LAST 30 MINUTES. WILL HAVE IFR/LIFR VISIBILITY AT KSGF
AND IFR/LIFR CEILINGS AT KJLN TO START. GIVEN THE SHALLOW DEPTH OF
THE STRATUS...IT SHOULD MIX OUT FAIRLY QUICKLY THIS MORNING. CANT
RULE OUT SOME SHOWERS/TSTMS. ONGOING ISOLD SHOWERS HAVE OCCURRED
NORTH OF KSGF THROUGH MOST OF THE NIGHT...AND BELIEVE THAT TREND
WILL CONTINUE AS THE WEAK FRONT OVER THE AREA BEGINS TO LIFT BACK TO
THE NORTH.

&&

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

WFO SGF

Hazardous weather outlook, May 25, 11:45 AM CDT, 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1145 AM CDT FRI MAY 25 2007

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-261100-
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-
1145 AM CDT FRI MAY 25 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  SCATTERED THUNDERSTORMS WILL BE POSSIBLE THROUGH TONIGHT AS A
  STATIONARY FRONT REMAINS OVER SOUTHERN AND CENTRAL MISSOURI.
  THUNDERSTORMS WILL MAINLY OCCUR ALONG AND SOUTH OF A LINE
  FROM WAYNESVILLE TO NEOSHO. MOST STORMS ARE EXPECTED TO REMAIN
  BELOW SEVERE LIMITS. A FEW OF THE STRONGER STORMS MAY PRODUCE WIND
  GUSTS TO 50 MPH...HAIL TO THE SIZE OF NICKELS...AND VERY HEAVY
  RAINFALL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

 SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE ON
 SATURDAY THROUGH THE MEMORIAL DAY WEEKEND AS THE FRONT BEGINS TO
 LIFT NORTHWARD INTO CENTRAL AND NORTHERN MISSOURI. HEAVY RAINFALL
 AND LOCALIZED  FLOODING WILL BE POSSIBLE ACROSS PORTIONS OF CENTRAL
 MISSOURI SATURDAY AFTERNOON AND EVENING.

.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)

TERRY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 6:58 AM CDT	Dense Fog Advisory	SGF	Barry, Christian, Dade, Greene, Lawrence, Stone	2 hr
May 25, 1:11 PM CDT	Severe Thunderstorm Warning	SGF	Laclede	18 min
May 25, 1:39 PM CDT	Flash Flood Warning	SGF	Douglas	3 hr
May 25, 4:31 PM CDT	Flash Flood Warning	SGF	Shannon	6 hr
May 25, 4:52 PM CDT	Flash Flood Warning	SGF	Greene	3 hr
May 25, 5:00 PM CDT	Flash Flood Warning	SGF	Barton, Jasper, Newton	6 hr
May 25, 5:10 PM CDT	Flash Flood Warning	SGF	Cedar, Dade, Dallas, Polk	6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2007 Every severe thunderstorm warning in 2007

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.