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Severe weather analysis

Observations and analyses of the atmosphere now, from NWS, WPC and SPC. Not a forecast and not a warning: for those, see the Briefing and the Live tracker.

SPC soundings: feeds current

SPC soundings: Feed current; checked .

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Soundings: what weather balloons measured

SPC’s skew-T diagram and hodograph of the sounding at Little Rock, AR (LZK), 00Z. Its levels are in the table below.
Observed Sounding at Little Rock, AR (LZK), for (5 h 8 min ago). SPC’s graphic; the values in its panels (CAPE, shear, the indices) are SPC’s computations from these levels. Data: NOAA/SPC.

A balloon launched about an hour before the time named, measuring as it rose and drifted with the wind: the atmosphere above one place, at one time. Model soundings, which are forecasts, are not shown here.

The levels this sounding was drawn from (53)
Little Rock, AR (LZK): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1007 mb173 m14.83.8345° 11 kt
1000 mb232 m14.22.2340° 26 kt
956 mb610 m10.60.9355° 27 kt
925 mb883 m8.00.0345° 30 kt
888 mb1219 m4.8-1.2345° 28 kt
855 mb1524 m1.9-2.2340° 28 kt
850 mb1572 m1.4-2.4345° 27 kt
823 mb1829 m-0.0-4.8345° 27 kt
806 mb1999 m1.6-9.4—
793 mb2134 m1.2-10.9015° 33 kt
781 mb2252 m0.8-12.2—
763 mb2438 m-0.1-15.0355° 35 kt
734 mb2743 m-1.5-19.6000° 33 kt
718 mb2923 m-2.3-22.3—
707 mb3048 m-2.8-23.4335° 27 kt
700 mb3124 m-3.1-24.1335° 27 kt
686 mb3283 m-3.7-29.7—
655 mb3646 m-6.5-32.5—
644 mb3778 m-7.7-34.7—
613 mb4163 m-4.3-41.3—
603 mb4293 m-4.5-41.5—
582 mb4572 m-4.0-42.8325° 44 kt
569 mb4749 m-4.1-43.1—
538 mb5182 m-5.5-42.1310° 52 kt
519 mb5470 m-6.5-41.5—
500 mb5760 m-7.5-42.5300° 46 kt
479 mb6096 m-9.7-42.8300° 48 kt
460 mb6401 m-11.7-43.0300° 53 kt
442 mb6706 m-13.5-44.5305° 53 kt
408 mb7315 m-18.2-47.6285° 71 kt
400 mb7460 m-19.3-48.3285° 72 kt
384 mb7763 m-21.5-49.5—
371 mb8017 m-21.1-48.1—
345 mb8534 m-25.1-46.6270° 95 kt
317 mb9144 m-29.8-44.8265° 94 kt
301 mb9527 m-32.7-43.7—
300 mb9550 m-32.9-43.9270° 97 kt
286 mb9886 m-35.1-46.1—
273 mb10209 m-38.3-48.3270° 101 kt
258 mb10597 m-41.7-51.7—
250 mb10810 m-43.7-53.7270° 95 kt
233 mb11278 m-47.1-58.8270° 91 kt
223 mb11582 m-47.8-61.0265° 78 kt
212 mb11887 m-49.1-62.8270° 72 kt
200 mb12280 m-50.1-65.1250° 70 kt
185 mb12802 m-54.1-69.1255° 72 kt
171 mb13287 m-57.1-71.1—
152 mb14021 m-60.5-74.5265° 73 kt
150 mb14110 m-60.9-74.9270° 75 kt
131 mb14935 m-64.1-77.3255° 66 kt
119 mb15545 m-66.0-78.4260° 64 kt
107 mb16154 m-67.2-79.2255° 54 kt
100 mb16580 m-67.1-79.1270° 52 kt
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

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