Alert archive / Missouri / Frost Advisories in 2023

Frost Advisory 2, NWS Springfield, MO

April 5, 20238 counties in Missouri; Bourbon County, Kansas

NWS Springfield, MO issued this frost advisory at Apr 5, 2023, 2:09 PM CDT for 8 counties in Missouri; Bourbon County, Kansas. It took effect at Apr 6, 2023, 4:00 AM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Apr 5, 2023, 2:09 PM CDT (19:09 UTC)
In effect from: Apr 6, 2023, 4:00 AM CDT
Expired: Apr 6, 2023, 8:00 AM CDT
In force: 4 hr
Issued by: NWS Springfield, MO

Counties Bourbon County, KS, Benton County, MO, Camden County, MO, Hickory County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 96 km from the middle of the area, began a volume at 19:13 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, 7.2 hours before the alert went out and 140 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 530 m above ground
0-6 km bulk shear: 83 kt
0-1 km storm-relative helicity: -94 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this frost advisory 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 frost advisory went out at Apr 5, 12:25 PM CDT, 1 hour 44 minutes earlier.

Area forecast discussion, Apr 5, 12:25 PM CDT, 1 hour 44 minutes before

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Hazardous weather outlook, Apr 5, 5:55 AM CDT, 8 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
555 AM CDT Wed Apr 5 2023

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-061100-
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-
555 AM CDT Wed Apr 5 2023

...Severe Thunderstorms This Morning...

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Today and Tonight.

Weather hazards expected...

 Limited tornado risk.
 Elevated hail risk.
 Elevated thunderstorm wind damage risk.
 Elevated lightning risk.
 Limited excessive rainfall risk.
 Limited non thunderstorm wind risk.
 Elevated frost risk.
 Elevated fire weather risk.

DISCUSSION...

Strong to severe thunderstorms will continue to develop across the
Missouri Ozarks this morning. Large hail up to the size of golf
balls and damaging winds up to 70 mph will be the main threats.
Isolated tornadoes will be possible early this morning east of a
line from Table Rock Lake to Lebanon.

Wind gusts of 35 to 40 mph will be possible through the day as a
strong cold front moves across the area. The strong winds behind
the front will lead to an elevated fire weather risk, especially
over southeast Kansas and far western Missouri where drought
conditions persist.

Much colder air will spread into the area tonight with
temperatures dropping to near freezing, especially in valleys and
other low lying areas.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A cooler air mass will remain across the region through Friday
and there is the potential for frost during early morning on
Thursday and Friday. Given the dry air in place, elevated fire
weather conditions will develop Wednesday and again Friday.

.SPOTTER INFORMATION STATEMENT...

 Spotter activation may be needed this morning for locations along
 and east of a line from Cassville to Osage Beach.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/dsspacket

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Terry

In the hours before

Special weather statement, Apr 5, 9:01 AM CDT, 5 hours 8 minutes before

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Special weather statement, Apr 5, 9:38 AM CDT, 4 hours 31 minutes before

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Local storm report, Apr 5, 9:59 AM CDT, 4 hours 10 minutes before

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Local storm report, Apr 5, 10:09 AM CDT, 4 hours before

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Local storm report, Apr 5, 12:46 PM CDT, 1 hour 23 minutes before

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Local storm report, Apr 5, 1:53 PM CDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 1:34 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	41 min
Apr 5, 1:45 AM CDT	Severe Thunderstorm Warning	SGF	Oregon	30 min
Apr 5, 2:06 AM CDT	Tornado Warning	SGF	Oregon	9 min
Apr 5, 2:14 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	46 min
Apr 5, 2:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Barton, Vernon	38 min
Apr 5, 2:36 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	54 min
Apr 5, 3:05 AM CDT	Tornado Warning Considerable damage threat	SGF	Oregon	24 min
Apr 5, 3:07 AM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Barton, Jasper	53 min
Apr 5, 3:26 AM CDT	Special Weather Statement	SGF	Morgan	34 min
Apr 5, 3:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	SGF	Cedar, Dade, St. Clair, Vernon	55 min
Apr 5, 3:57 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	25 min
Apr 5, 4:03 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper, Newton	57 min
Apr 5, 4:06 AM CDT	Special Weather Statement	SGF	McDonald	54 min
Apr 5, 4:17 AM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	43 min
Apr 5, 4:28 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade, Jasper	47 min
Apr 5, 4:30 AM CDT	Severe Thunderstorm Warning	SGF	Newton	45 min
Apr 5, 4:42 AM CDT	Severe Thunderstorm Warning	SGF	Dade, Jasper, Lawrence	48 min
Apr 5, 4:51 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence	39 min
Apr 5, 4:51 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade, Hickory, Polk	39 min
Apr 5, 5:06 AM CDT	Special Weather Statement	SGF	McDonald	24 min
Apr 5, 5:14 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	46 min
Apr 5, 5:17 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede	43 min
Apr 5, 5:38 AM CDT	Special Weather Statement	SGF	Lawrence	37 min
Apr 5, 5:39 AM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	66 min
Apr 5, 5:52 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Laclede, Pulaski, Webster, Wright	38 min
Apr 5, 5:55 AM CDT	Special Weather Statement	SGF	Camden, Miller	35 min
Apr 5, 5:55 AM CDT	Tornado Warning	SGF	Stone, Taney	39 min
Apr 5, 6:13 AM CDT	Special Weather Statement	SGF	Christian	32 min
Apr 5, 6:21 AM CDT	Special Weather Statement	SGF	Stone	24 min
Apr 5, 6:26 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark, Taney	25 min
Apr 5, 6:29 AM CDT	Special Weather Statement	SGF	Laclede, Maries, Phelps, Pulaski, Webster, Wright	31 min
Apr 5, 6:36 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	39 min
Apr 5, 6:53 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	21 min
Apr 5, 7:10 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	28 min
Apr 5, 7:13 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Taney, Wright	47 min
Apr 5, 7:47 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark, Texas, Wright	43 min
Apr 5, 8:08 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	52 min
Apr 5, 8:25 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	35 min
Apr 5, 8:31 AM CDT	Special Weather Statement	SGF	Howell, Ozark	29 min
Apr 5, 9:01 AM CDT	Special Weather Statement	SGF	Howell, Shannon	29 min
Apr 5, 9:10 AM CDT	Severe Thunderstorm Warning	SGF	Dent, Howell, Shannon, Texas	50 min
Apr 5, 9:38 AM CDT	Special Weather Statement	SGF	Howell	22 min
Apr 5, 9:52 AM CDT	Severe Thunderstorm Warning	SGF	Shannon	21 min
Apr 5, 12:15 AM CDT	Special Weather Statement	SGF	Bourbon	60 min
Apr 5, 12:25 AM CDT	Severe Thunderstorm Warning	SGF	Bourbon	28 min
Apr 5, 1:12 AM CDT	Special Weather Statement	SGF	Bourbon	63 min
Apr 5, 2:05 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee, Crawford	40 min
Apr 5, 2:49 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee	41 min
Apr 5, 3:43 AM CDT	Severe Thunderstorm Warning	SGF	Cherokee	32 min

Nearby

Frost Advisories in Missouri, 2023 Frost Advisories in Kansas, 2023 Every frost advisory in 2023

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.