Alert archive / Missouri / Winter Weather Advisories in 2021

Winter Weather Advisory 6, NWS Springfield, MO

February 7, 202134 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas

NWS Springfield, MO issued this winter weather advisory at Feb 7, 2021, 1:01 PM CST for 34 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Feb 7, 2021, 1:01 PM CST (19:01 UTC)
Expired
Feb 8, 2021, 11:53 PM CST
In force
35 hr
Issued by
NWS Springfield, MO
All 37 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 30 km from the middle of the area, began a volume at 18:59 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, 7.0 hours before the alert went out and 82 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 2021-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter weather 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 winter weather advisory went out at Feb 7, 11:39 AM CST, 1 hour 22 minutes earlier.

Area forecast discussion, Feb 7, 11:39 AM CST, 1 hour 22 minutes before
Area Forecast Discussion
National Weather Service Springfield MO
1139 AM CST Sun Feb 7 2021

.SHORT TERM...(Today through Monday Night)
Issued at 300 AM CST Sun Feb 7 2021

An Arctic airmass will continue to make its presence felt across
the Ozarks region this morning with temperatures ranging from the
single digits across central Missouri to upper teens elsewhere.
Wind chills will make it feel below zero.

The main storyline of the forecast will be dangerous cold and
opportunities for wintry precipitation through the next week.

For today, a weak shortwave transitions across the Middle
Mississippi Valley bringing light snow chances to portions of
central Missouri. At this time, little accumulation is expected
with the highest amounts around a half inch to an inch. Impacts
are expected be limited.

The attention then turns to additional wintry precipitation
chances early Morning morning through Monday afternoon. This
includes the potential for additional light snow chances across
central Missouri and freezing drizzle chances across southeast
Kansas and southwest Missouri. Models are in fairly good
agreement that portions of southeast Kansas into southwest
Missouri lose cloud ice aloft. As the lower atmosphere becomes
saturated, the resulting precipitation type at the surface would
be freezing drizzle with surface temperatures below freezing.
While current guidance such as the HREF suggest the freezing
drizzle would be light, it could have potential impacts. The best
convergence and lift in the lower levels will occur along the
spine of the Ozark plateau. At this time, a light glaze of less
than a tenth of an inch is forecast for southeast Kansas into
southwest Missouri. Road temperatures will likely be below
freezing as this precipitation falls. This could pose a potential
for impacts during the Monday morning commute. With all these
factors in consideration, Monday morning will need to be watched
closely to see how the event evolves over the next twenty four
hours.

Temperatures will slowly rise above freezing into the middle 30s
by mid-afternoon on Monday, while portions of central Missouri
will likely only top out in the upper 20s for highs. Wintry
precipitation chances will exit the region overnight Monday.

.LONG TERM...(Tuesday through Saturday)
Issued at 300 AM CST Sun Feb 7 2021

For Tuesday into Wednesday, temperatures will struggle to reach
above freezing for much of the area. Areas that are forecast to
reach above freezing (middle 30s) will be along the
Missouri/Arkansas border.

By Wednesday, additional chances for light snow return to the
region as another shot of cold air digs into the central CONUS.
This reinforcing shot of cold air will slowly filter into the
region through the late week. This will keep highs below freezing
for the entire region through next weekend. The coldest
temperatures are expected into next weekend when the center of
high pressure settles across the central Plains. Daily high
temperatures will range from the lower teens to lower 20s by late
week. While overnight lows will range from around zero to single
digits. This will be accompanied by sub-zero wind chills. Additional
chances for light snow will exist through next weekend.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1133 AM CST Sun Feb 7 2021

Light freezing drizzle is ongoing at KBBG and could spread to KJLN
and KSGF this afternoon. Additional light freezing drizzle may
develop this evening mainly at KJLN and KSGF and continue into
Monday while spreading to KBBG.

&&

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

SHORT TERM...Perez
LONG TERM...Perez
AVIATION...Titus
Hazardous weather outlook, Feb 7, 6:12 AM CST, 6 hours 49 minutes before
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In the hours before

Local storm report, Feb 7, 8:59 AM CST, 4 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
859 AM CST SUN FEB 7 2021

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

0700 AM     SNOW             2 ESE DOOLITTLE         37.92N 91.84W
02/07/2021  M1.0 INCH        PHELPS             MO   COCORAHS

            COCORAHS STATION MO-PH-44 ROLLA 4.4 WSW.

0830 AM     SNOW             3 NNE URBANA            37.88N 93.15W
02/07/2021  M1.0 INCH        DALLAS             MO   COCORAHS

            COCORAHS STATION MO-DL-10 URBANA 2.7 NNE.

0700 AM     SNOW             4 NNW LECOMA            37.83N 91.76W
02/07/2021  M0.6 INCH        PHELPS             MO   COCORAHS

            COCORAHS STATION MO-PH-13 ROLLA 8.1 S.

0630 AM     SNOW             4 NNW LAKE SPRING       37.84N 91.70W
02/07/2021  M0.5 INCH        PHELPS             MO   COCORAHS

            COCORAHS STATION MO-PH-17 ROLLA 8.2 SSE.

0700 AM     SNOW             3 NW MORRISVILLE        37.52N 93.47W
02/07/2021  M0.4 INCH        POLK               MO   COCORAHS

            COCORAHS STATION MO-PL-21 ALDRICH 5.0 ESE.

0700 AM     SNOW             3 WNW YUKON             37.29N 91.89W
02/07/2021  M0.2 INCH        TEXAS              MO   COCORAHS

            COCORAHS STATION MO-TX-7 HOUSTON 4.5 ESE.

0700 AM     SNOW             HALF WAY                37.62N 93.25W
02/07/2021  M0.2 INCH        POLK               MO   COCORAHS

            COCORAHS STATION MO-PL-33 HALF WAY 0.8 WNW.

0700 AM     SNOW             1 NW SALEM              37.66N 91.55W
02/07/2021  M0.2 INCH        DENT               MO   COCORAHS

            COCORAHS STATION MO-FSA-065 SALEM 1.8 NW.

0700 AM     SNOW             LOCKWOOD                37.39N 93.95W
02/07/2021  M0.2 INCH        DADE               MO   CO-OP OBSERVER

            CO-OP OBSERVER STATION LKWM7 LOCKWOOD.

0700 AM     SNOW             2 ESE ROGERSVILLE       37.11N 93.01W
02/07/2021  M0.1 INCH        WEBSTER            MO   COCORAHS

            COCORAHS STATION MO-WB-31 ROGERSVILLE 2.5 E.

0740 AM     SNOW             4 ESE CARTHAGE          37.16N 94.23W
02/07/2021  M0.1 INCH        JASPER             MO   COCORAHS

            COCORAHS STATION MO-JS-30 CARTHAGE 4.5 E.

0700 AM     SNOW             3 WNW COLE CAMP         38.48N 93.26W
02/07/2021  M0.1 INCH        BENTON             MO   CO-OP OBSERVER

            CO-OP OBSERVER STATION CCMM7 COLE CAMP COOP.

&&
Local storm report, Feb 7, 9:00 AM CST, 4 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
900 AM CST SUN FEB 7 2021

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

0700 AM     SNOW             2 N PINE CREST          37.13N 91.67W
02/07/2021  M0.5 INCH        TEXAS              MO   COCORAHS

            COCORAHS STATION MO-TX-44 SUMMERSVILLE 3.6
            S.

0700 AM     SNOW             4 WSW WINONA            36.98N 91.38W
02/07/2021  M0.3 INCH        SHANNON            MO   CO-OP OBSERVER

            CO-OP OBSERVER STATION WFRM7 WINONA 3 SW
            COOP.

0700 AM     SNOW             4 NE ELKTON             37.89N 93.38W
02/07/2021  M0.2 INCH        HICKORY            MO   COCORAHS

            COCORAHS STATION MO-HC-16 WHEATLAND 3.9 SSE.

0700 AM     SNOW             2 NNW DUNNEGAN          37.74N 93.59W
02/07/2021  M0.1 INCH        POLK               MO   COCORAHS

            COCORAHS STATION MO-PL-14 DUNNEGAN 2.4 NNW.

&&
Local storm report, Feb 7, 9:01 AM CST, 4 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
901 AM CST SUN FEB 7 2021

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

0700 AM     SNOW             BOLIVAR                 37.62N 93.41W
02/07/2021  M0.5 INCH        POLK               MO   COCORAHS

            COCORAHS STATION MO-PL-28 BOLIVAR 0.5 N.

0700 AM     SNOW             3 S ROLLA               37.90N 91.78W
02/07/2021  M0.5 INCH        PHELPS             MO   COCORAHS

            COCORAHS STATION MO-PH-33 ROLLA 3.2 SSW.

0700 AM     SNOW             ROUND SPRING            37.28N 91.41W
02/07/2021  M0.4 INCH        SHANNON            MO   CO-OP OBSERVER

            CO-OP OBSERVER STATION RNDM7 ROUND SPRING
            COOP.

0700 AM     SNOW             4 ESE FLEMINGTON        37.79N 93.43W
02/07/2021  M0.3 INCH        POLK               MO   CO-OP OBSERVER

            CO-OP OBSERVER STATION FLMM7 FLEMINGTON
            COOP.

&&
Local storm report, Feb 7, 9:04 AM CST, 3 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
904 AM CST SUN FEB 7 2021

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

0700 AM     SNOW             1 WSW BUFFALO           37.64N 93.12W
02/07/2021  M0.1 INCH        DALLAS             MO   COCORAHS

            COCORAHS STATION MO-DL-21 BUFFALO 1.3 WSW.

&&
Local storm report, Feb 7, 10:04 AM CST, 2 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1004 AM CST SUN FEB 7 2021

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

0800 AM     SNOW             3 SSE STOVER            38.40N 92.97W
02/07/2021  M1.5 INCH        MORGAN             MO   COCORAHS

            COCORAHS STATION MO-MG-6 STOVER 3.2 SSE.

&&

MB

Nearby

Winter Weather Advisories in Missouri, 2021Winter Weather Advisories in Kansas, 2021Every winter weather advisory in 2021

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.