National Weather Service United States Department of Commerce

Severe Thunderstorms with Tornadoes and Heavy Rain Threat shifts East for Tuesday

Severe thunderstorms are forecast to develop from the mid-Mississippi River Valley south into the ArkLaTex on Tuesday. These storms can bring large hail, damaging winds, a few tornadoes and flash flooding. Residents should heed any warnings issued and follow local forecast office social media pages for updates. 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
20 May 2238807484160 S22 3229.750.0080
20 May 2240807484166 S21 3229.760.0080
20 May 2242807583165 S20 2829.760.0080
20 May 2244807584163 S15 2129.770.0085
20 May 2246807584165 S18 2729.770.0080
20 May 2248807584173 S13 2129.760.0080
20 May 2250807584163 S15 2429.760.0080
20 May 2252807585161 S14 2129.760.0080
20 May 2254807585165 S12 1729.770.0080
20 May 2256807585164 S14 2229.770.0080
20 May 2258807585162 S15 2429.770.0080

May 19 Maximum temperature: 88 F at 1448 Minimum temperature: 78 F at 0711
Precipitation: 0.02 inches Peak wind: 27 mph at 1821


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)
20 May 2259800.00

NASA Ellington: May 19 2019 Max temperature: 91 F Min Temperature: 78 F Rainfall: 0.02 inches