Alert archive / Missouri / Special Weather Statements in 2011

Special Weather Statement, NWS Springfield, MO

April 25, 2011McDonald County, Missouri

NWS Springfield, MO issued this special weather statement at Apr 25, 2011, 3:55 AM CDT for McDonald County, Missouri. It was in force for 50 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: Apr 25, 2011, 3:55 AM CDT (08:55 UTC)
Expired: Apr 25, 2011, 4:45 AM CDT
In force: 50 min
Issued by: NWS Springfield, MO

County McDonald County, MO

The radar

The Springfield radar (KSGF), 113 km from the middle of the area, began a volume at 08:55 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, 8.9 hours before the alert went out and 63 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: 52 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -8.7

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 25, 2:42 AM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Apr 25, 2:42 AM CDT, 1 hour 13 minutes before

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Hazardous weather outlook, Apr 25, 1:53 AM CDT, 2 hours 2 minutes before

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In the hours before

Local storm report, Apr 24, 11:11 PM CDT, 4 hours 44 minutes before

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Local storm report, Apr 24, 11:14 PM CDT, 4 hours 41 minutes before

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Local storm report, Apr 24, 11:15 PM CDT, 4 hours 40 minutes before

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Local storm report, Apr 25, 1:36 AM CDT, 2 hours 19 minutes before

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Local storm report, Apr 25, 2:50 AM CDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
250 AM CDT MON APR 25 2011

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

0200 AM     FLASH FLOOD      6 N BRANSON             36.73N 93.22W
04/25/2011                   TANEY              MO   EMERGENCY MNGR

            FLOODING OCCURRING ON BULL CREEK.

&&

AFOSTER

Special weather statement, Apr 25, 3:55 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
355 AM CDT MON APR 25 2011

MOZ101-250945-
MCDONALD MO-
355 AM CDT MON APR 25 2011

...SIGNIFICANT WEATHER ALERT FOR MCDONALD COUNTY UNTIL 445 AM CDT...

AT 345 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR NOEL...OR 7 MILES SOUTHWEST OF PINEVILLE...
MOVING EAST AT 25 MPH. PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE
EXPECTED WITH THIS STORM.

THIS STORM WILL BE NEAR...
  7 MILES SOUTH OF POWELL BY 425 AM CDT.

LAT...LON 3650 9461 3672 9457 3673 9407 3649 9407
TIME...MOT...LOC 0855Z 273DEG 23KT 3653 9441

GRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 7:09 PM CDT	Areal Flood Warning	SGF	Dade, Jasper, Lawrence, Polk	12 hr
Apr 24, 9:23 PM CDT	River Flood Warning	SGF	Jasper	66 hr
Apr 24, 10:26 PM CDT	Special Weather Statement	SGF	Jasper	49 min
Apr 24, 10:51 PM CDT	Flash Flood Warning	SGF	Barry, Christian, Greene, Lawrence, McDonald, Newton and 2 more	8 hr
Apr 25, 1:12 AM CDT	Flash Flood Warning	SGF	Dent, Texas, Wright	6 hr
Apr 25, 4:15 AM CDT	Special Weather Statement	SGF	Barry	60 min
Apr 25, 5:10 AM CDT	Special Weather Statement	SGF	Stone, Taney	65 min
Apr 25, 6:23 AM CDT	Flash Flood Warning	SGF	Jasper, McDonald, Newton	20 hr
Apr 25, 6:34 AM CDT	Flash Flood Warning	SGF	Barry, Christian, Greene, Lawrence, Stone, Webster	19 hr
Apr 25, 6:43 AM CDT	Flash Flood Warning	SGF	Dent, Douglas, Howell, Oregon, Ozark, Shannon and 3 more	19 hr
Apr 25, 6:47 AM CDT	River Flood Warning	SGF	Jasper	62 hr
Apr 25, 6:57 AM CDT	Areal Flood Warning	SGF	Dade, Dallas, Laclede, Phelps, Polk, Pulaski	24 hr
Apr 25, 10:49 AM CDT	River Flood Warning	SGF	Ozark	28 hr
Apr 25, 1:11 PM CDT	River Flood Warning	SGF	Jasper, Newton	38 hr
Apr 25, 4:30 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	60 min
Apr 25, 4:53 PM CDT	Tornado Warning	SGF	Ozark	37 min
Apr 25, 5:31 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	34 min
Apr 25, 9:03 AM CDT	River Flood Warning	SGF	Cherokee	60 hr
Apr 25, 1:57 PM CDT	Special Weather Statement	SGF	Bourbon	33 min
Apr 25, 2:17 PM CDT	Special Weather Statement	SGF	Cherokee	43 min

Nearby

Special Weather Statements in Missouri, 2011 Every special weather statement in 2011

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.