National Weather Service United States Department of Commerce

Significant Severe Weather Outbreak Likely Today

A significant severe thunderstorm outbreak is likely for portions of the Midwest this afternoon and evening, especially from eastern Iowa into northern and central Illinois. The threats include tornadoes, a few which may be significant, large to very large hail, and damaging winds. A powerful system near the Central Plains will lift north and clash with a warm and humid air mass over the region. Read More >

JSC Bldg. 30 Weather Observations

Day TimeTemperatureDew Point RHWind AltimeterAccum. PCPN
since midnight
Wind Chill
(Central)(F)(F) (%)DirectionAvg Spd
Pk Spd
(inHg) (inches)Heat Index
28 Mar 1026767082159 SE12 1929.860.0076
28 Mar 1028767082164 S15 2329.860.0076
28 Mar 1030767183159 SE17 2529.850.0076
28 Mar 1032767082161 S18 2629.850.0076
28 Mar 1034767082168 S18 2529.840.0076
28 Mar 1036777182159 SE13 2029.840.0077
28 Mar 1038777182160 S14 1829.850.0077
28 Mar 1040777181163 S14 2229.840.0077
28 Mar 1042777081165 S16 2629.840.0077
28 Mar 1044777182162 S17 2429.840.0077
28 Mar 1046777081162 S15 2229.850.0077

Mar 27 Maximum temperature: 89 F at 2158 Minimum temperature: 73 F at 0136
Precipitation: 0.00 inches Peak wind: 39 mph at 1418


MesoWest data displays from NWS Western Region: JSC Bldg. 30 and NASA Ellington Field

Additional displays available from University of Utah Mesowest site. JSC Bldg. 30 and NASA Ellington Field (Not METAR site KEFD)

Additional rainfall data from Building 421 at JSC may be found at the JSC CoCoRaHS station TX-HRR-52 (Nassau Bay 1.6 NNW) Note that CoCoRaHS data is reported on day of measurement.

Heat Index is only reported when the temperature is 75 F or greater. Wind Chill is reported only when the temperature is 45 F or less. Exposure to full sunshine can increase heat index values by 15 degrees. Learn more about the heat index.

This is an experimental data service and is NOT CONSIDERED OPERATIONAL. Data may not be available at all times nor is it monitored 24/7. Data is provided by the NASA Johnson Space Center and provided by the NWS SMG as a courtesy. Sensors are located atop JSC Building 30 and may not always be representative of surrounding conditions.

NASA Ellington Field Weather Observation

Day TimeTemperature Accum. PCPN
since midnight
(Central)(F) (inches)
28 Mar 1045790.00

NASA Ellington: Mar 27 2020 Max temperature: 86 F Min Temperature: 72 F Rainfall: 0.00 inches