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 Rapid City, SD (UNR), 00Z. Its levels are in the table below.
Observed Sounding at Rapid City, SD (UNR), 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 (61)
Rapid City, SD (UNR): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
912 mb1029 m15.4-9.6175° 5 kt
892 mb1219 m14.3-8.7200° 15 kt
859 mb1524 m11.8-10.5215° 15 kt
850 mb1616 m11.0-11.0225° 13 kt
838 mb1734 m10.4-10.6—
798 mb2134 m8.1-22.7255° 14 kt
774 mb2390 m6.6-30.4—
741 mb2743 m5.3-29.0315° 10 kt
714 mb3048 m3.3-28.2305° 17 kt
700 mb3209 m2.2-27.8300° 12 kt
688 mb3353 m1.9-15.8320° 12 kt
662 mb3658 m1.2-17.4355° 15 kt
638 mb3954 m0.2-24.8—
621 mb4170 m-1.1-16.1—
605 mb4377 m-2.5-17.5—
578 mb4737 m-5.1-18.1—
568 mb4877 m-6.0-23.4340° 26 kt
556 mb5040 m-6.5-30.5—
546 mb5182 m-7.5-27.7330° 27 kt
525 mb5485 m-9.7-21.7—
506 mb5769 m-11.3-30.3—
500 mb5860 m-11.9-28.9340° 29 kt
485 mb6096 m-13.5-31.0335° 28 kt
466 mb6401 m-15.3-36.8345° 27 kt
447 mb6706 m-17.8-38.0345° 30 kt
429 mb7010 m-20.2-38.6340° 26 kt
412 mb7315 m-22.7-39.2345° 30 kt
400 mb7530 m-24.1-41.1340° 36 kt
384 mb7826 m-26.5-37.5—
361 mb8269 m-30.1-42.1—
348 mb8534 m-32.2-40.4340° 41 kt
319 mb9144 m-36.2-45.0340° 39 kt
305 mb9449 m-38.3-47.3345° 41 kt
300 mb9560 m-39.1-48.1345° 35 kt
266 mb10363 m-44.5-53.3350° 28 kt
255 mb10668 m-46.7-55.1335° 27 kt
250 mb10790 m-47.5-55.5325° 34 kt
238 mb11113 m-49.5-57.5—
221 mb11582 m-52.8-60.0330° 37 kt
211 mb11887 m-54.8-61.5340° 41 kt
200 mb12230 m-55.9-62.9340° 49 kt
183 mb12792 m-58.5-65.5—
173 mb13146 m-58.7-66.7—
163 mb13521 m-58.5-67.5—
153 mb13917 m-60.9-69.9—
150 mb14040 m-61.7-69.7330° 46 kt
139 mb14508 m-63.7-72.7—
127 mb15062 m-63.3-72.3—
112 mb15850 m-66.0-75.0320° 29 kt
101 mb16451 m-68.5-77.5300° 35 kt
100 mb16510 m-68.7-77.7300° 37 kt
89 mb17216 m-65.6-77.3300° 37 kt
79 mb17941 m-66.5-79.8305° 32 kt
69 mb18768 m-63.0-79.3315° 27 kt
59 mb19730 m-63.5-82.8305° 18 kt
48 mb21003 m-60.4-84.3355° 12 kt
38 mb22458 m-58.8-86.4330° 5 kt
28 mb24377 m-56.5-86.2145° 5 kt
18 mb27196 m-54.0-84.2040° 4 kt
8 mb32500 m-43.5-77.5350° 11 kt
7 mb33695 m-43.1-68.1—
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.