Areas of Excessive Rainfall and Severe Thunderstorms Friday

Heavy thunderstorms may bring areas of excessive rainfall and locally considerable flooding over parts of the Ozarks into the lower-Mississippi River Valley Friday and Saturday. Scattered severe thunderstorms may occur Friday from Montana into the central Plains, with hail and corridors of damaging winds possible. Read More >

COOP Observations Forms:

WS Form B-23: Cooperative Station Inspection (Word version).
WS Form B-91: Record of River and Climatological Observations (Word version).
WS Form B-92: Record of Evaporation and Climatological Observations (Word version).
NWS Cooperative Observer Site - Authorization: Authorization Document for a COOP Observer Site (Word version).
WS Form B-43: Request for Establishment or Change in status of Cooperative Station (Word version).
WS Form B-30: Cooperative Agreement with Observer (Word version)

Temperature Observer Instructions for Nimbus MMTS:

Nimbus Display Unit Manual - July 2000

PRECIPITATION OBSERVER Reporting Instructions

Fischer-Porter Rebuild (FPR) Gauges

Fischer-Porter Mechanical (F&P) Gauges:

FPR-D Document
Papertape Decoding Instructions, For 79-1D - August 2011
WS Form 79-1D, (XLS file) - August 2011

SNOWFALL OBSERVER Instructions:

Snow Measurement Guidelines for NWS Surface Observing Programs - September 2013

PAN EVAPORATION OBSERVER Instructions

Wind Run Observation - NovaLynx Totalizing Anemometer - June 2015

Water Thermometer Note - ThermoWorks Maximum/Minimum Digital - August 2013

TECH SUPPORT HOTLINE - STERLING FIELD SUPPORT CENTER (SFSC)

Hotline Contact Information, October 2012

The collection of information for the Cooperative Observer Program is authorized under the OMB Control Number included in the Paperwork Reduction Act and Privacy Act statements you can access here.