Alert archive / Missouri / Special Weather Statements in 2011
Special Weather Statement, NWS Springfield, MO
NWS Springfield, MO issued this special weather statement at Jul 31, 2011, 4:42 PM CDT for Christian 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 outline as issued.
The facts
- Issued
- Jul 31, 2011, 4:42 PM CDT (21:42 UTC)
- Expired
- Jul 31, 2011, 5:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Springfield, MO
County Christian County, MO
The radar
The Springfield radar (KSGF), 30 km from the middle of the area, began a volume at 21:45 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 46 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.
- Mixed-layer CAPE
- 861 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1336 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Jul 31, 3:34 PM CDT, 1 hour 8 minutes earlier.
Area forecast discussion, Jul 31, 3:34 PM CDT, 1 hour 8 minutes before
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</html>Hazardous weather outlook, Jul 31, 12:48 PM CDT, 3 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 1248 PM CDT SUN JUL 31 2011 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-011800- 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- 1248 PM CDT SUN JUL 31 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE HAZARDOUS WEATHER RISK LEVEL IS...EXTREME. WEATHER HAZARDS EXPECTED... LIMITED THUNDERSTORM WIND DAMAGE RISK. LIMITED LIGHTNING RISK. EXTREME EXCESSIVE HEAT RISK. DISCUSSION... ISOLATED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON...MAINLY ACROSS THE MISSOURI OZARKS. CLOUD TO GROUND LIGHTNING AND GUSTY WINDS WILL BE THE PRIMARY THREATS WITH THESE STORMS. HOT AND HUMID CONDITIONS WILL CONTINUE ACROSS THE OUTLOOK AREA TODAY...WITH AFTERNOON HEAT INDICES BETWEEN 100 AND 110 EXPECTED. THE HOTTEST TEMPERATURES WILL OCCUR OVER SOUTHEASTERN KANSAS AND FAR WESTERN MISSOURI. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. OPPRESSIVE HEAT AND HUMIDITY WILL CONTINUE THROUGH THURSDAY. TEMPERATURES BETWEEN 95 AND 103 DEGREES CAN BE EXPECTED EACH AFTERNOON...WITH HEAT INDICES BETWEEN 103 AND 110 DEGREES. THE HOTTEST CONDITIONS WILL OCCUR FROM SOUTHEAST KANSAS INTO CENTRAL MISSOURI. ELEVATED FIRE WEATHER CONDITIONS WILL BE POSSIBLE OVER EASTERN KANSAS AND WESTERN MISSOURI ON TUESDAY...AS RELATIVE HUMIDITY VALUES DROP BELOW 30 PERCENT DURING THE AFTERNOON HOURS. ISOLATED THUNDERSTORMS WILL BE POSSIBLE STARTING THURSDAY THROUGH THE EARLY PART OF NEXT WEEKEND. .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) WFO SGF
In the hours before
Special weather statement, Jul 31, 4:42 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:02 PM CDT | Special Weather Statement | SGF | Hickory | 28 min |
| Jul 31, 5:52 PM CDT | Special Weather Statement | SGF | Greene | 23 min |
Nearby
Special Weather Statements in Missouri, 2011Every 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.