District of ColumbiaSite status

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 Salt Lake City, UT (SLC), 00Z. Its levels are in the table below.
Observed Sounding at Salt Lake City, UT (SLC), for (5 h 6 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 (60)
Salt Lake City, UT (SLC): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
886 mb1289 m19.6-0.4000° 5 kt
874 mb1404 m16.82.8—
864 mb1501 m15.82.6335° 8 kt
852 mb1618 m15.10.4350° 6 kt
850 mb1638 m15.00.0000° 6 kt
835 mb1788 m13.8-2.2—
821 mb1930 m13.1-2.0215° 2 kt
804 mb2105 m12.1-4.5210° 7 kt
782 mb2337 m10.7-8.1180° 10 kt
761 mb2562 m9.1-6.8190° 6 kt
740 mb2793 m7.3-4.9150° 4 kt
722 mb2995 m6.7-12.2160° 7 kt
705 mb3191 m6.2-19.7150° 9 kt
700 mb3249 m6.0-22.0160° 9 kt
687 mb3402 m4.8-23.9185° 10 kt
663 mb3691 m4.8-22.5145° 8 kt
648 mb3877 m4.6-17.4—
637 mb4016 m3.6-19.4—
623 mb4195 m2.5-17.4140° 8 kt
606 mb4418 m0.9-16.6100° 7 kt
589 mb4645 m-0.8-17.4105° 4 kt
578 mb4796 m-1.9-17.9—
563 mb5004 m-3.3-20.5065° 9 kt
543 mb5289 m-5.3-22.5075° 11 kt
532 mb5449 m-6.6-22.9075° 13 kt
520 mb5627 m-8.0-24.0070° 13 kt
503 mb5884 m-9.8-23.3080° 6 kt
500 mb5930 m-10.1-23.1075° 7 kt
483 mb6195 m-11.5-25.8045° 10 kt
466 mb6469 m-13.0-32.6075° 15 kt
446 mb6801 m-15.3-34.3060° 14 kt
420 mb7248 m-19.3-35.6045° 20 kt
402 mb7573 m-22.1-35.3040° 14 kt
400 mb7610 m-22.3-35.3040° 13 kt
389 mb7813 m-24.1-36.3045° 12 kt
375 mb8080 m-26.5-37.5—
362 mb8333 m-28.9-40.9060° 7 kt
348 mb8614 m-31.2-42.6030° 14 kt
336 mb8861 m-32.8-45.3060° 13 kt
320 mb9203 m-35.0-49.4065° 13 kt
309 mb9446 m-36.8-49.8055° 13 kt
300 mb9650 m-38.5-48.5060° 10 kt
290 mb9882 m-40.2-49.4050° 8 kt
279 mb10146 m-42.0-51.4040° 9 kt
268 mb10416 m-44.1-53.7050° 8 kt
250 mb10880 m-48.1-57.1055° 11 kt
240 mb11149 m-49.5-57.5—
230 mb11426 m-50.8-59.4015° 10 kt
213 mb11925 m-53.0-62.9000° 8 kt
203 mb12234 m-55.0-65.0015° 9 kt
200 mb12330 m-55.7-65.7015° 10 kt
190 mb12655 m-57.9-67.3025° 14 kt
179 mb13030 m-59.3-69.3—
169 mb13388 m-61.3-70.3040° 12 kt
158 mb13807 m-60.8-71.4015° 18 kt
150 mb14130 m-60.7-72.7015° 21 kt
135 mb14779 m-63.5-76.5025° 11 kt
125 mb15249 m-64.1-79.1—
103 mb16414 m-69.5-86.5305° 23 kt
100 mb16590 m-68.9-86.9320° 18 kt
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

District of Columbia briefing

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.