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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 Brownsville, TX (BRO), 00Z. Its levels are in the table below.
Observed Sounding at Brownsville, TX (BRO), for (5 h 7 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)
Brownsville, TX (BRO): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
1020 mb7 m24.616.6350° 16 kt
1000 mb181 m22.615.6355° 29 kt
954 mb587 m18.714.9000° 36 kt
932 mb789 m16.814.6—
925 mb853 m16.214.8005° 35 kt
910 mb992 m15.415.0—
895 mb1133 m14.814.5010° 34 kt
850 mb1570 m12.812.8005° 25 kt
812 mb1954 m11.011.0—
799 mb2089 m11.26.2—
788 mb2205 m11.04.0—
773 mb2365 m12.4-14.6—
759 mb2518 m11.2-19.8—
741 mb2718 m10.0-22.0—
728 mb2864 m9.4-21.6—
714 mb3025 m8.4-9.6—
701 mb3176 m8.0-13.0—
700 mb3188 m8.0-13.0030° 9 kt
685 mb3366 m7.0-11.0—
641 mb3907 m3.1-17.1340° 10 kt
626 mb4098 m3.8-34.2—
616 mb4229 m3.0-23.0—
591 mb4562 m1.5-29.1015° 13 kt
580 mb4713 m0.4-22.6—
565 mb4923 m-0.5-19.5035° 10 kt
553 mb5093 m-1.9-22.9—
542 mb5253 m-2.1-15.1—
529 mb5445 m-2.5-38.5—
517 mb5627 m-3.1-44.1—
507 mb5781 m-3.7-30.7—
500 mb5890 m-4.9-28.9090° 3 kt
483 mb6162 m-7.1-30.1—
469 mb6392 m-7.7-32.7—
449 mb6731 m-9.7-43.7—
420 mb7246 m-12.0-45.3240° 11 kt
409 mb7450 m-12.9-45.9—
400 mb7620 m-14.3-44.3260° 17 kt
387 mb7865 m-16.5-45.5250° 16 kt
368 mb8237 m-19.8-47.3260° 16 kt
349 mb8629 m-23.4-49.2240° 17 kt
337 mb8887 m-25.7-51.7250° 15 kt
327 mb9104 m-26.7-43.7—
306 mb9579 m-29.4-55.9245° 15 kt
300 mb9720 m-30.1-48.1250° 21 kt
289 mb9984 m-32.3-45.3—
272 mb10408 m-35.7-49.7—
261 mb10694 m-37.5-44.5255° 31 kt
251 mb10963 m-39.3-49.3—
250 mb10990 m-38.9-57.9265° 37 kt
236 mb11382 m-41.5-60.5—
206 mb12287 m-49.7-56.7—
200 mb12480 m-50.9-60.9290° 45 kt
186 mb12949 m-55.1-61.1—
168 mb13591 m-60.9-66.9—
158 mb13972 m-62.7-75.7280° 25 kt
150 mb14290 m-65.7-74.7270° 25 kt
139 mb14748 m-69.3-72.5—
129 mb15189 m-72.1-78.1—
119 mb15662 m-72.7-81.7—
107 mb16279 m-74.9-83.9—
100 mb16670 m-76.3-85.3195° 11 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.