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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 Spokane, WA (OTX), 18Z. Its levels are in the table below.
Observed Sounding at Spokane, WA (OTX), for (10 h 59 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 (57)
Spokane, WA (OTX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
945 mb728 m10.03.0080° 5 kt
933 mb832 m7.61.6—
925 mb902 m8.02.0095° 11 kt
891 mb1214 m12.6-0.4—
875 mb1366 m12.4-1.6—
859 mb1524 m12.6-4.4210° 20 kt
850 mb1610 m12.4-5.6210° 21 kt
838 mb1729 m11.8-6.2—
828 mb1829 m11.4-8.6205° 17 kt
802 mb2095 m10.2-14.8—
788 mb2241 m9.4-15.6—
769 mb2438 m8.8-16.9215° 22 kt
741 mb2743 m7.8-21.9225° 30 kt
714 mb3048 m6.8-27.0220° 29 kt
700 mb3216 m6.2-29.8225° 29 kt
690 mb3333 m5.6-30.4—
672 mb3548 m3.8-28.2—
638 mb3962 m0.9-32.7235° 33 kt
614 mb4267 m-1.0-32.5240° 31 kt
591 mb4572 m-3.0-30.9255° 30 kt
574 mb4805 m-4.7-33.7—
562 mb4971 m-6.1-31.1—
551 mb5125 m-5.9-28.9—
535 mb5355 m-6.5-33.5—
506 mb5791 m-9.0-36.8250° 38 kt
500 mb5880 m-9.5-37.5250° 39 kt
486 mb6096 m-11.1-38.2245° 39 kt
471 mb6339 m-12.9-38.9—
448 mb6706 m-16.1-37.9250° 39 kt
431 mb7010 m-18.7-37.0245° 33 kt
413 mb7315 m-21.4-36.2245° 32 kt
400 mb7560 m-23.5-35.5255° 37 kt
380 mb7925 m-26.9-37.3250° 38 kt
360 mb8319 m-30.1-42.1—
349 mb8539 m-31.9-42.9—
334 mb8839 m-34.1-44.4255° 55 kt
320 mb9144 m-36.4-47.9260° 56 kt
305 mb9477 m-39.1-50.1—
300 mb9590 m-39.9-50.9255° 51 kt
276 mb10154 m-44.3-54.3—
255 mb10668 m-47.7-55.3255° 54 kt
250 mb10810 m-48.5-55.5260° 55 kt
233 mb11278 m-52.3-56.9255° 57 kt
222 mb11582 m-54.6-58.1255° 56 kt
212 mb11887 m-55.1-60.4255° 54 kt
201 mb12218 m-56.9-62.9—
200 mb12250 m-56.9-62.9255° 53 kt
189 mb12606 m-58.5-65.5—
179 mb12946 m-60.1-67.1—
166 mb13411 m-60.5-67.9240° 48 kt
150 mb14021 m-63.4-70.5245° 52 kt
150 mb14040 m-63.5-70.5245° 51 kt
140 mb14461 m-65.3-72.3—
130 mb14911 m-66.5-73.5—
119 mb15444 m-67.1-76.1—
106 mb16154 m-67.7-78.4255° 54 kt
100 mb16490 m-67.5-79.5250° 34 kt
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

Montana 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.